Patent Description:
ESP systems require connection to an electric power supply, which drives the motor (not specific to motor type). Conventional ESPs typically use electrical connectors that are assembled manually- these are simple plug and socket type connections, which must be fitted in a controlled environment.

In a typical ESP application (tubing deployed ESP), the electrical power is supplied to the electric motor from the surface VSD via an ESP cable. The ESP cable is installed onto the production tubing during the ESP installation and it is normally terminated in a MLE (motor lead extension) which incorporates a pothead. The pothead then is connected to the motor during the installation.

Typically a male/female connector is employed that enables the connection between power supply and ESP to be made-up remotely, so that it is operable in the harsh conditions of an oil-well, where high pressures and temperatures are present, and the fluid filled environment may be corrosive. The female connector is of interest here (plug-head- also described in an earlier patent). Inside this connector are voids around seals, electrodes and wires, so dielectric fluid/oil is used to fill these volumes, which is essential to preventing electrical breakdown due to high voltage differentials. The dielectric oil is also the medium for pressure compensation, without which the connector could be damaged by high pressure differentials.

Hydrostatic pressure in fluids externally, and thermal expansion of fluid internally are two primary sources of pressure differentials; in addition pressure transients are a normal effect of ESP activity, creating smaller but rapidly changing pressure differentials; lastly well interventions may directly or indirectly change the hydrostatic pressure differential around the connector.

With the retrievable ESP system, the ESP cable is installed onto the production tubing and the permanent completion and it is connected to the permanent downhole wet connector (fixed end). The power is then transferred to the motor through the retrievable mating wet connector (plug head) when this is deployed and connected to the downhole wet connector.

<CIT> mentions a control line hybrid junction assembly which may comprise a junction body configured to sealingly couple to a first control line and a second control line.

The invention is defined according to the claims. Thus, the invention provides A field bypass connector system (<NUM>) for a downhole completion tool (<NUM>) comprising: a. a downhole completion tool (<NUM>) mounted on a production tubular member (<NUM>), the completion equipment (<NUM>) having an internal feedthrough passage; b. a first clamp-type field connector (<NUM>, <NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction uphole from the completion tool (<NUM>), the first clamp-type field connector (<NUM>, <NUM>) having a housing (<NUM>, <NUM>) with a first internal chamber, the position of the first clamp-type field connector (<NUM>, <NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>); c. a second clamp-type field connector (<NUM>, <NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction downhole from the completion tool (<NUM>), the second clamp-type field connector (<NUM>, <NUM>) having a housing (<NUM>, <NUM>) with a second internal chamber (<NUM>), the position of the second clamp-type field connector (<NUM>, <NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>); d. one or more electrical conduits (<NUM>; <NUM>) having a first conduit end and a second conduit end, the first conduit end being connected to the first connector (<NUM>, <NUM>), the second conduit end being connected to the second connector (<NUM>, <NUM>), the one or more conduits (<NUM>; <NUM>) passing through the feedthrough passage; and e. a first and/or second dielectric fluid port (<NUM>), wherein: i. the first dielectric fluid port (<NUM>) is in fluid communication with the first internal chamber for introducing a dielectric fluid (<NUM>) into the first chamber, the dielectric fluid (<NUM>) creating an internal fluid pressure; and/or ii. the second dielectric fluid port (<NUM>) is in fluid communication with the second internal chamber (<NUM>) for introducing a dielectric fluid into the second chamber (<NUM>), the dielectric fluid (<NUM>) creating an internal fluid pressure.

In one embodiment, the first clamp-type field connector is a clamp-type field connector plug (<NUM>) and the second clamp-type field connector is a clamp-type field connector receptable (<NUM>).

In one embodiment, the first and second clamp-type field connectors are clamp-type field connector receptables (<NUM>).

In one embodiment, the field bypass connector system further comprises: (A) a first clamp-type field connector plug (<NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction uphole from the completion tool (<NUM>), the first clamp-type field connector plug (<NUM>) having a housing (<NUM>) with a third internal chamber, the position of the first clamp-type field connector plug (<NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>), the first clamp-field connector plug (<NUM>) and the first clamp field connector receptacle (<NUM>) capable of being electrically connected to each other; and (B) a second clamp-type field connector plug (<NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction downhole from the completion tool (<NUM>), the second clamp-type field connector plug (<NUM>) having a housing (<NUM>) with a fourth internal chamber, the position of the second clamp-type field connector plug (<NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>), the second clamp field connector plug (<NUM>) and the second clamp field connector receptacle (<NUM>) capable of being electrically connected to each other.

In one embodiment, the one or more electrical conduits (<NUM>; <NUM>) have an internal annular space (<NUM>) surrounding an electrical wire/cable (<NUM>), and wherein the conduit annular space (<NUM>), first internal chamber and second internal chamber (<NUM>) are in fluid communication with each other, the conduit annular space (<NUM>), first internal chamber and second internal chamber (<NUM>) defining a fluid flow path; and a bellows (<NUM>; <NUM>) having first (208a) and second (208b) ends, and an interior chamber (208j), the first bellows end (208a) being connected to the connector housing (<NUM>; <NUM>) in fluid communication with the housing inside chamber (<NUM>), the bellows second end (208b) being exposed to downhole wellbore fluid pressure and capable of reacting to the wellbore pressure to cause the bellows (<NUM>; <NUM>) to provide a compensating adjustment to the internal fluid pressure.

In one embodiment, the completion tool is a packer (<NUM>).

In one embodiment, the field connector receptable (<NUM>) and field connector plug (<NUM>) are mounted onto a clamp-type assembly (<NUM>) comprising upper body (<NUM>) having an outer face in which receptacle (<NUM>) and plug (<NUM>) are mounted, and a lower body (<NUM>) wherein the upper body (<NUM>) and lower body (<NUM>) are clamped together onto tubing (<NUM>) by mounting clamp fasteners (<NUM>).

In one embodiment, the one or more electrical conduits (<NUM>; <NUM>) are connected to the connector receptacle (<NUM>) by high pressure metallic tube fittings (<NUM>). In one embodiment, the clamp-type field connector plug (<NUM>) comprises fasteners (<NUM>) for securing the clamp-type field connector plug (<NUM>) to the clamp-type field connector receptacle (<NUM>).

In one embodiment, the clamp-type field connector plug (<NUM>) and the clamp-type field connector receptacle (<NUM>) comprise locking features (<NUM>, <NUM>) comprising slip-type internal grooves on the top and bottom sides of the clamp-type field connector plug housing (<NUM>) and the top and bottom sides of the clamp-type field connector receptacle housing (<NUM>).

Described herein is a permanent downhole electrical connector system comprised of a downhole wet connector (fixed end - described in an earlier patent), steel tubing enclosed power cables, a low-profile three phase field connector (receptacle) and the field attachable PLE (power lead extension including the low profile three phase field connector plug). Variants on the form factor provide a simple solution to address specific applications as well. This system is factory filled with dielectric oil and includes an automatic pressure balance and expansion compensator system.

The connection system described herein may include the integration of a pressure compensator device, into an electrical connector, to eliminate the effects of static and dynamic pressure differentials that may result in a loss of dielectric oil, or ingress of well-bore fluids; thus preventing premature failure from electrical discharge. The device creates a means by which the internal oil volume of the connector can accommodate expansion and contraction due to temperature changes, maintaining internal pressure within safe operating limits.

The device may also be designed such that the internal pressure is always greater than external pressure by <NUM>-<NUM> kPa (<NUM>-14psi), so that well-bore fluids do not ingress when the connector is mated in a fluid filled environment. These functions are primarily achieved in the construction of the device, which uses edge welded bellows, manufactured from corrosion resistant alloys. Low inertia and zero friction actuation enable the device to immediately respond to any changes in the environmental conditions. Within the connector housing small pistons are also used to provide individual pressure compensation around specialist sliding seals. These small pistons can be connected on the back-side to the primary device in order to maintain separation with external fluids.

The protection afforded by this device is used with both manually assembled bulkhead electrical connections, and remotely connected plug and socket electrical connectors (fixed-end and plug-head described in an earlier patent).

Described herein is a fluid compensated downhole connection system comprising: (a) at least one connector housing having an inside chamber; (b) one or more electrical conduits having an internal annular space surrounding an electrical wire/cable, a first conduit end and a second conduit end, the first conduit end being connected to the housing, wherein the conduit annular space is in fluid communication with the housing inside chamber, the conduit annular space and housing inside chamber defining a fluid flow path; (c) a dielectric fluid port in fluid communication with the inside chamber for introducing a dielectric fluid into the fluid path, the dielectric fluid creating an internal fluid pressure; and (d) a bellows having first and second ends, and an interior annular chamber, the first bellows end being connected to the connector housing in fluid communication with the housing inside chamber, the bellows second end being exposed to downhole wellbore fluid pressure and capable of reacting to the wellbore pressure to cause the bellows to provide a compensating adjustment to the internal fluid pressure. This fluid compensated downhole connection system can also further comprise the use of check valves.

The fluid compensated downhole connection system may be installed in a retrievable wet connect system. The retrievable wet connect system may comprise: (a) a tubular member having a first threaded end, a second threaded end, and an inner annulus in fluid communication with the wellbore fluid pressure; (b) the tubular member first end further comprising a high pressure bulkhead electrical connector capable of permitting the introduction of electrical signals from a surface cable into each of the respective electrical cables in a first of the at least one connector housing, (c) the tubular member second end comprising a threaded connection; and (d) a female wet connect assembly located proximate the tubular member second end, the wet connect assembly comprising a wet connect housing having an internal chamber; the second conduit end being connected to the wet connect housing, wherein the conduit annular space is in fluid communication with the housing inside chamber and the wet connect internal chamber, the conduit annular space, housing inside chamber and wet connect housing internal chamber defining the fluid flow path; female electrical sockets mounted to an end of the wet connect housing and being capable of receiving pin-style male connectors to permit transmission of electrical signals through the connection system to another section of wellbore tubing; the wet connect sockets having electrically insulated electrical contacts located within the wet connect housing.

Also described is a permanent downhole fluid compensated electrical connector assembly comprising: (<NUM>) a field connector receptacle at a first assembly end, the receptacle having a housing with a first internal chamber; (b) a wet connector receptacle at a second assembly end, the wet connector having a housing with a second internal chamber; (c) one or more electrical conduits having an internal annular space surrounding an electrical wire/cable, a first conduit end and a second conduit end, the first conduit end being connected to the receptacle housing, the second conduit end being connected to the wet connector housing, wherein the conduit annular space, first internal chamber and second internal chamber are in fluid communication with each other, the conduit annular space, first internal chamber and second internal chamber defining a fluid flow path; (d) a dielectric fluid port in fluid communication with the inside chamber for introducing a dielectric fluid into the fluid path, the dielectric fluid creating an internal fluid pressure; and (e) a bellows having first and second ends, and an interior annular chamber, the first bellows end being connected the wet connector receptacle, the bellows second end being exposed to downhole wellbore fluid pressure and capable of reacting to the wellbore pressure to cause the bellows to provide a compensating adjustment to the internal fluid pressure. This permanent downhole electrical connector assembly may be installed in a permanent completion portion of production tubing. The permanent downhole electrical connector assembly may further comprise a separate bellows for each of the one or more electrical conduits.

The invention provides a field bypass connector system for a downhole completion tool as defined in the claims.

Reference is now made to the drawings which are not drawn to scale.

The power lead extension or PLE is comprised of a flat ESP cable (usually #<NUM> or #<NUM> AWG) with a length of up to <NUM> (<NUM> ft. ) and the low profile field connector also called the plug (similar in function to a pothead). The length of the cable allows for the field splice to the surface ESP cable (round or flat) to be performed on the production tubing (<NUM> (<NUM>") OD) above the permanent completion (<NUM> (<NUM>") OD). This is ever so important due to the space constraints when the permanent completion is installed in <NUM> (<NUM>") casing. In case of a production packer installed on the tubing above the permanent completion, the cable length can be extended such that the PLE is spliced into the packer penetrator thus eliminating the need for an additional splice below the packer.

The ESP cable of the PLE can be replaced with tubing encapsulated power cable (TEPC) and the low-profile three-phase field connector can be converted to accept the tubing encapsulated power leads. The free end of the tubing enclosed cable can pass through the packer (similar to a packer penetrator) and it can be terminated onto the surface ESP cable above the packer. In this configuration, the power conductors below the packer are completely isolated from the well bore fluid. This will extend the life of the electrical conductors in extreme harsh downhole environments.

The female low-profile three-phase field connector (the plug) can also be factory installed directly onto a surface flat ESP cable with lengths up to <NUM>,<NUM> (<NUM>,<NUM> ft). With this option, there is no need for a PLE, thus eliminating any field splice in the string (to be used only when no production packer is installed).

The male low-profile three-phase field connector (the receptacle) is part of the permanent downhole wet connector system. It is permanently mounted onto the <NUM> (<NUM>/<NUM>") steel tubes which are connected to the wet mate. Each of the three power leads from the fixed end is routed through the steel tubes into the receptacle and is terminated in the electrical contact pins. This connector provides the interface to the PLE.

The permanent downhole connector system is factory pre-filled with dielectric oil prior to installation onto the permanent completion. The dielectric oil fills the internal cavities of the rear section of the wet mate (where the power leads terminate into the fixed-end electrodes), the annular space between the ID of the steel tube and the OD of the power lead inside the tube, and the cavities inside the receptacle up to the check valves on each pin contact.

In downhole applications, it is highly desirable to ensure the dielectric fluid inside the equipment is at the same pressure as or higher than the well bore media (usually the hydrostatic pressure). In addition to this, it must also allow for the dielectric oil expansion due to the elevated downhole temperatures. Majority of downhole applications utilize flexible polymer bladder systems. The novelty for the present permanent downhole wet connector pressure balance and oil compensation system is the use of fully sealed metallic flexible edge welded bellows. The steel bellows unit acts as an accumulator and as an expansion compensator for the dielectric oil. This assembly is permanently connected to the wet mate body. The dielectric oil within the bellows unit communicates with the oil inside the permanent downhole connector system. As the tool is deployed into the well, the hydrostatic pressure and the temperature steadily increase until the system reaches the desired depth. The hydrostatic pressure acting on the flexible bellows is transferred over to the incompressible dielectric fluid inside the equipment due to the flexible bellows expansion and the pressure balance is achieved. At the same time, the temperature rise in the well causes the dielectric oil to expand, such that the bellows are forced to compress due to the increase in the oil volume in the system. The compression of the bellows causes the pressure of the dielectric fluid to be raised due to the residual spring force of the steel bellows. Depending on the well bore temperature and the amount of the dielectric oil expansion, the internal pressure could be up to <NUM> kPa (<NUM> PSI) higher than the hydrostatic pressure of the well bore fluid. This is advantageous as the polymer seals used in the downhole connector system are pressurized from the inside and become positively energized, thus providing a more reliable and durable seal.

The bellows compensator is factory pre-set with additional oil volume. When additional oil volume is used, the bellows will be compressed in a controlled manner, thus the dielectric oil pressure will be maintained higher than the ambient pressure.

The PLE male connector (the plug) is not factory prefilled with dielectric oil. The oil fill of the plug takes place when it is connected to the receptacle. During the field connection of the plug, normally closed check valves built into the receptacle are actuated, which opens the flow path for the dielectric oil in the downhole permanent connector system to be transferred into the PLE plug until most of the air voids in the plug are filled with oil. The higher internal pressure will force the oil into the plug until the pressure balance due to the oil volume change in the accumulator is achieved. When the plug is removed, the check valves return to their closed position and prevent the oil from draining from the permanent downhole electrical connector system. Using this check valve arrangement and the pre-set oil volume in the bellows, it is possible to connect and disconnect the PLE several times during the permanent completion installation, or in case the equipment must be retrieved from the well and the PLE must be replaced. The number of connections is limited by the pre-set volume of oil inside the metal bellows accumulator/compensator, as a small volume of oil is lost at each connection.

Elastomeric seals (O-rings) are only used on the wet mate electrodes and in the low-profile three-phase connector (the receptacle). Some of these O-rings act as the primary seals between the dielectric fluid and the well bore media, whereas others are only used for the check valve arrangement in the receptacle.

Metal-to-metal seals are utilized in the permanent downhole connector system to seal on the steel tubes. These seals can be industry standard metal-to-metal seals, using NPT threads and tube fittings, or specially designed metal-to-metal seals to replace the NPT connections.

The permanent downhole electrical connector system components in contact with the well bore media are manufactured from corrosion resistant nickel alloys to ensure extended operating life even in the harshest well environments. The polymer seals exposed to the well bore fluid are made from high temperature and extremely chemical resistant elastomers (FFKM grades). These seals can be replaced with a more specific compound depending on the environment of the well on which the connector is to be installed.

Features of the permanent downhole electrical connector system described herein include:.

Field-testable metal-to-metal seals of the non NPT seal configuration.

Pressure balanced and oil expansion compensated system using steel bellows accumulator/compensator.

Positive internal pressure maintained due to the metal bellows residual spring force.

Elastomeric sealing element protection from high pressure differential.

Manufactured from corrosion resistant alloys and chemically resistant elastomers.

Extended operating life due to the combination of design and material selection.

Easily configurable PLE to be used with ESP cables or production packer penetrators.

Easily convertible field connector to be used with tubing encapsulated power cable.

Prevents dielectric oil drainage due to the integrated check valve design.

Factory installed downhole permanent connector onto the permanent completion.

Simple plug and play, effective field connection of the PLE.

Multiple PLE field connections allowable.

Flexible low-profile design for use in specific applications.

Ability to run through packer without any splicing.

Features of the pressure compensator for use with dielectric fluid filled electrical connections includes:.

<FIG> illustrates a portion of a production tubing string assembly <NUM> comprising upper production tubing section <NUM> which leads to surface (not shown) and a lower production tubing section <NUM>. This is a general view of a typical production tubing installation <NUM> of the permanent completion section of a retrievable ESP system. Production tubing <NUM> further comprises an ACP section <NUM> connected between the upper and lower production tubing strings (<NUM>, <NUM>). The ACP <NUM> annular connection port top level assembly employs side pocket style wet connector system. An ESP cable <NUM> runs down the production tubing assembly <NUM> from the surface to the ACP. The ESP cable <NUM> could be any style cable known in the art, including one or more individually protected cable or cables embedded within a cable housing. A gas venting coupling <NUM> is employed to allow gas build-up from ESP system to escape to annulus. A shroud joint <NUM> is provided for retrievable components of a retrievable ESP system. A cable protector split clamp <NUM> is provided to fix and protect ESP and other cables going down the assembly. A centralizer coupling <NUM> is shown. A spacer joint <NUM> is shown to provide spacing for a B-profile coupling <NUM>, a coupling with an internal B-profile to release the alignment pin on a retrievable system. A no-go coupling <NUM> is shown, and serves as a coupling with an undersized ID to provide a hard-stop for depth indication. Another spacer joint <NUM> spaces the no-go coupling <NUM> from the B-profile coupling <NUM>.

Referring now to <FIG> there is depicted another, alternate version of a production tubing assembly <NUM> providing a general view of a field bypass connector system <NUM> used here with a downhole packer on a production tubing installation with lines passing through the packer using additional field connectors. For example, a splice-less assembly of cables passes through completions equipment <NUM>. In this instance of a field connector run through completions equipment (here a packer is shown), the connectors are shop installed in a no-splice version. The field bypass connector system <NUM> depicts a serial field connector assembly <NUM> illustrating back to back connected receptacles going through a packer. On the opposite side of each back to back connected receptacles are field mating connections to permit, e.g., connection of plug extension cables directed to the ACP, where cables can then continue down the string via ESP cable <NUM> (126a, 126b, 126c) or for the connection of cables directed to the surface via ESP cables <NUM>.

Referring now also to <FIG>, there is shown an ACP connector section <NUM> in the ACP <NUM>. Housed within the ACP connector section <NUM> is the permanent downhole electrical connector assembly <NUM>. This assembly <NUM> further comprises a field connector assembly/receptacle <NUM> (with housing <NUM>) at one end and a wet mate connector <NUM> interconnected by one or more fluid compensated-containing modified tubing enclosed leads/cables <NUM>, 210a, 210b, 210c (wire inside of a tube)(e.g., TEC, etc. known in the art) modified in accordance with the teachings of the present disclosure.

The electrical connector assembly <NUM> further comprises a bellows/accumulator system <NUM> shown here attached as part of the wet mate connector <NUM>. The bellows/accumulator system <NUM> further comprises a bellows first end 208a, a bellows second end 208b, a bellows annular housing 208c, a bellows internal annular wall 208d defining a bellows internal annual chamber 208j, a flexible sealing element 208e having an open fixed end 208f and a movable, closed end <NUM>, a movable end cap <NUM> for sealing the bellow, a bellows flexible sealing element internal cavity 208i for receiving wellbore fluid through open end 208f, a bellows annual chamber 208j, a connection <NUM> of bellows to the wet mate connector, and an annular connection orifice <NUM>.

The bellows may be modified to serve to increase the pressure of the internal dielectric fluid (Pi) to maintain Pi greater than the wellbore pressure (Pw). Each conduit that receives a dielectric fluid may have its own bellows. Two or more conduits may share a common bellows.

The completion tubing <NUM> further comprises a field connector plug <NUM> capable of receiving the field connector receptacle <NUM> end of the permanent downhole electrical connector assembly <NUM> to complete an electrical connection between the ACP connector system <NUM> and the ESP cable <NUM> on the upper production tubing section <NUM>. The field connector plug <NUM> further comprises a field connector plug contact bore internal wall 212a defining the field connector plug annular internal chamber 292b around the field connector plug contact/socket insulator <NUM>. The field connector plug <NUM> further comprises a field connector plug rear cavity internal wall 212b defining the field connector plug cable individual annular area 292f around the cable <NUM> which can extend up to the surface or to other part of the tubing string, e.g., cable <NUM> in <FIG>. Cable <NUM> can be for power, signal, or other control line wire to surface.

The wet mate connector <NUM> generally comprises housing manifold <NUM> for maintaining one or more connections, and electrode housing <NUM>, lead/cable connections <NUM> (metal to metal seal preferred). Compression nut metal-metal seals 220a, 220b, 220c provide the required compression for sealing elements 220b in order to form the metal-metal sealing. Metal-metal sealing element 220b serves as a primary metal-metal seal, installed on tubing <NUM> a,b,c, in housing <NUM> and connections <NUM> to provide the barrier between the manifold interior space <NUM> filled with dielectric fluid/oil <NUM> and the well bore fluid <NUM> in the manifold <NUM>. A permanent downhole connection test seal 220c (elastomeric seal) provides the sealing for field pressure testing of connection <NUM>.

The bellows <NUM> is connected to housing manifold <NUM> via bellows connection <NUM>. A dielectric fluid port <NUM> is provided for charging the system at surface with dielectric fluid <NUM>. These connections are exposed on the outside to wellbore fluid <NUM> which exerts a wellbore hydrostatic pressure Pw (the downhole pressure generated by the column of fluid above the permanent downhole connector system). Atmospheric or ambient air pressure is indicated as Pa herein.

Connection manifold <NUM> further comprises manifold interior space <NUM> (filled with dielectric fluid <NUM> at an internal connector pressure Pi (the pressure generated by the bellow compensator system <NUM> inside the permanent downhole connector system <NUM> and field connector plug <NUM> when connected to assembly <NUM>). Flow pathway <NUM> provides interior space and back side of all connections in fluid communication with each other and with dielectric fluid.

As illustrated, each cable further comprises a cable annular space <NUM>. Permanent downhole connector electrical power lead <NUM> connects the wet mate connector electrode <NUM> to the field connector receptacle contact pin <NUM>. Permanent downhole connector electrical power lead overmold 236a is present over the termination between the permanent downhole connector electrical power lead <NUM> and the wet mate connector electrode <NUM>.

The wet mate connector electrode <NUM> is a permanent downhole electrical connector wet mate electrode, which connects with <NUM> (Plug head) during downhole deployment. The wet mate connector electrode cone end 238a is a self-centering connection end of the wet mate connector electrode <NUM>, and provides a first area of contact between wet mate connector electrode <NUM> and <NUM> (plug head guide pin) of <NUM> (plug head).

A permanent downhole connector pressure test orifice <NUM> serves as a pressure port for field testing of connections <NUM>. The permanent downhole connector pressure test manifold <NUM> provides a pathway/manifold for wellbore fluid <NUM> to provide communication with one or more sealing connections <NUM> on tubing <NUM> and to allow field pressure testing through port <NUM>.

A wet mate connector electrode sealing element <NUM> serves as the primary elastomeric seal, installed on the wet mate electrode <NUM> and inside housing <NUM>. The seal <NUM> provides the barrier between the manifold interior space <NUM> filled with dielectric oil <NUM> and the well bore fluid <NUM>. The lead/cable connections <NUM> are typically threaded <NUM>, with various thread types (parallel, NPT, other) being possible. A field connector receptacle check valve assembly <NUM> provides the sealing of the pressure compensated dielectric fluid <NUM>, at the field connector receptacle end <NUM> (opposite end to the bellows assembly <NUM>).

A fastener <NUM> for the field connector assembly comprises bolt and spring washers to secure the field connector plug <NUM> to the field connector receptacle housing <NUM> of the field connector assembly <NUM>. A field connector receptacle/plug sealing element <NUM> serves as a primary elastomeric seal, installed on the field connector receptacle guide tube <NUM> to seal the inside receptacle housing <NUM> and the field connector plug contact bore internal wall 212a, when the plug <NUM> is installed onto field connector receptacle <NUM>. This seal provides the barrier between the receptacle individual interior space 278a,b,c filled with dielectric fluid/oil <NUM> and the well bore fluid <NUM>.

Field connector receptacle guide tube <NUM> provides the alignment between the field connector receptacle <NUM> and plug <NUM> during field installation and houses the sealing elements <NUM>, protects the field connector receptacle contact pins <NUM> and forms the field connector receptacle individual cavities, filled with dielectric fluid/oil <NUM> from the bellows system <NUM> through the cable annular space <NUM> in the tubing <NUM>. Field connector receptacle power lead short insulator <NUM> comprises an insulator bush installed onto the power lead <NUM> of the field connector receptacle <NUM>. Field connector receptacle check valve spring <NUM> applies the required force to return and hold the valve body <NUM> to and in its original position, to provide sealing for the oil compensator system, when the field connector plug <NUM> is removed from the receptacle <NUM> (during installation) or not present (before installation). Field connector receptacle contact pin insulator <NUM> comprises an insulator sleeve installed on the field connector receptacle contact pin <NUM> and inside the field connector receptacle housing <NUM>. The valve spring <NUM> pushes against this sleeve, trapping it in place and preventing the contact pin <NUM> and the power lead <NUM> from moving axially towards the guide tube open end <NUM>. Field connector receptacle contact pin <NUM> is an electrical contact pin, crimped onto the power lead <NUM> to provide the electrical contact terminal for the field connector receptacle <NUM>.

Field connector receptacle check valve body <NUM> is an insulator sleeve, providing electrical insulating layer for the contact pin <NUM>. Its function also comprises a check valve, to provide a positive hydraulic sealing of the dielectric fluid of the bellows compensator system. In unconnected situation, it seals against the elastomeric sealing elements <NUM> and <NUM>, not allowing dielectric fluid from the annular areas <NUM> a,b,c, <NUM> a,b,c, and <NUM> a,b,c to drain. When the field connector plug <NUM> is connected, the valve body <NUM> is shifted away from the guide tube open end <NUM>, unseating the valve from the sealing element <NUM>, thus allowing dielectric fluid <NUM> from chambers <NUM> a,b,c, <NUM> a,b,c and <NUM> a,b,c to enter the annular chambers <NUM> a,b of the field connector plug <NUM>.

Check valve body contact face 266a is located at the end face of valve body <NUM>, and provides the contact face for shifting the valve body and unseating the valve, thus opening the path for the dielectric fluid to pass. Check valve body internal sealing wall 266b comprises the boundary defined by the through bore of the valve body <NUM>, in which the sealing between the valve body <NUM> and the field connector receptacle contact pin <NUM> takes place by means of the field connector receptacle check valve dynamic seal <NUM>. Check valve body nose sealing tapered face 266c comprises the primary sealing face of the check valve body <NUM>.

Field connector receptacle pressure test orifice <NUM> is a pressure port for field testing of connections <NUM> on the field connector receptacle <NUM>. Guide tube open end <NUM> is the open end of the field connector receptacle <NUM>, which accepts the field connector plug <NUM>.

Field connector receptacle contact pin individual annular chambers <NUM> a,b,c are annular chambers formed by the valve body <NUM> of the check valve <NUM> and the field connector receptacle contact pin <NUM>. Field connector receptacle check valve static seal <NUM> is an elastomeric seal to provide primary sealing for the check valve of the field connector receptacle check valve assembly <NUM>.

Field connector receptacle check valve dynamic seal <NUM> is an elastomeric seal used to provide sealing for the check valve <NUM>. The check valve body <NUM> slides over this seal and provides dynamic sealing, and it forces the dielectric fluid <NUM> communication between the field connector receptacle <NUM> and the field connector plug <NUM> through the annular area <NUM> only. Field connector receptacle pressure test manifold <NUM> serves as a pathway/manifold for wellbore fluid to provide communication with one or more sealing connections <NUM> on tubing <NUM> and to allow field pressure testing of the connections <NUM> on the field connector receptacle <NUM>.

Valve spring individual annular area 278a,b,c communicates with power cable annular area <NUM>, but not manifold in housing <NUM> of field connector receptacle <NUM>.

Field connector receptacle contact pin individual annular area 280a,b,c communicates with valve spring individual annular area 278a,b,c and the power cable individual annular area <NUM>, but not manifold in housing <NUM> of field connector receptacle <NUM>.

Field connector receptacle contact pin insulator individual annular area 282a,b,c communicates with the field connector receptacle contact pin individual annular area 280a,b,c, the with valve spring individual annular area 278a,b,c and the power cable annular area <NUM>, but not manifold in housing <NUM> of field connector receptacle <NUM>.

Field connector receptacle valve body individual annular area 284a,b,c communicates with the field connector receptacle contact pin insulator individual annular area 282a,b,c, field connector receptacle contact pin individual annular area 280a,b,c, the with valve spring individual annular area 278a,b,c and the power cable annular area <NUM>, but not manifold in housing <NUM> of field connector receptacle <NUM>.

Threaded end of guide tube <NUM> provides a connection method of the guide tube <NUM> in housing <NUM>. Field connector plug contact socket insulator <NUM> is an insulator sleeve installed on the field connector plug contact socket <NUM> and inside the field connector plug housing <NUM> to provide electrical insulation and activate the field connector receptacle check valve body <NUM>, during the connections of the field connector plug <NUM> and field connector receptacle <NUM>.

Field connector plug contact socket insulator shoulder 288a is a circular shoulder feature of a larger diameter on the field connector plug contact socket insulator <NUM> to provide a mechanical contact with valve body contact face 266a and activate the check valve <NUM> by shifting the valve body <NUM>.

Field connector plug contact socket <NUM> is an electrical contact pin, crimped onto the power lead <NUM> to provide the electrical contact terminal for the field connector plug <NUM>. Field connector plug front face <NUM> comprises the front face of field connector plug <NUM>, containing the individual field connector plug contact socket bore 292a, which comprises a main chamber of the field connector plug <NUM>. Individual bore per phase for multiple of phases. Field connector plug contact individual annular chamber 292b comprises an annular chamber between the field connector plug contact bore internal wall 212a and the field connector plug contact socket insulator <NUM>. Individual chamber per phase, for multiple of phases. Field connector plug contact socket internal chamber 292c is a chamber inside of the field connector plug contact socket <NUM>. Field connector plug contact socket communication orifice 292d is a pathway in the field connector plug contact socket <NUM>, for dielectric fluid/oil <NUM> to be transferred from field connector plug contact socket internal chamber 292c into field connector plug cable annular area 292f. Field connector plug contact insulator rear individual annular chamber 292e is an annular chamber between the field connector plug rear cavity wall 212b and the field connector plug contact socket insulator <NUM>. Individual chamber per phase, for multiple of phases. Field connector plug cable individual annular area 292f is an annular chamber between the field connector plug contact socket insulator <NUM> and the cable <NUM>. Individual chamber per phase, for multiple of phases.

Field connection annular area <NUM> is an annular chamber created between field connector receptacle guide tube <NUM> and the field connector plug contact bore internal wall 212a, when the field connector plug <NUM> starts engaging the field connector receptacle guide pin <NUM>. Individual chamber per phase, for multiple of phases. Atmospheric air <NUM> from chambers 292a,b,c and dielectric oil <NUM> from chambers 292a,b can escape through this annular chamber during the field connector plug <NUM> and receptacle <NUM> connections.

Dielectric fluid passage annular flow path 294a is an annular chamber/flow path between the field connector plug bore internal wall 212a and the field connector receptacle guide sleeve <NUM>, underneath the field connector receptacle check valve static seal <NUM>, created when the check valve body <NUM> is unseated.

Field connector receptacle guide tube nose <NUM> is an insert made out of a polymer which is installed onto the end of the field connector receptacle guide tube <NUM> and provides protection for the tubes and prevents damages on surface of the field connector plug contact bore internal wall 212a.

Referring now to <FIG>, operation of the connection between the field connector plug <NUM> and the receptacle <NUM> is described. In Step <NUM> (<FIG>), the field connector plug is shown disconnected. Both the field connector plug <NUM> and receptacle <NUM> are installed in a vertical orientation only. The transport cap (not shown) for the field connector receptacle <NUM> is providing sealing and protection of the guide tubes <NUM> until the time of the connector field installation. At the well site, the protective cap is removed exposing the guide pins <NUM> and the field connector receptacle contact pin individual annular chambers 270a,b,c, full of dielectric fluid <NUM>, at atmospheric pressure (Pa). The level of dielectric fluid reaches almost up to the open end <NUM> of the guide tubes <NUM>. The valve body <NUM> of the field connector receptacle check valve assembly <NUM> is sealing off the individual chambers <NUM>, <NUM>, <NUM> and <NUM> by means of the valve body nose sealing tapered face 266c pushing against the field connector receptacle check valve static seal <NUM>. The force required to maintain the contact between the check valve body <NUM> and seal <NUM> is provided by the field connector receptacle check valve spring <NUM>. The dielectric fluid pressure in chambers <NUM>, <NUM>, <NUM> and <NUM> is Pi.

In Step <NUM> (<FIG>), the field connector plug contact socket bore 292a starts engaging with the field connector receptacle guide tube nose <NUM>. As the field connector plug <NUM> is manipulated in order to make the connection with the field connector receptacle <NUM>, the field connector plug contact socket bore 292a makes contact with the field connector receptacle guide tube nose <NUM> and self-aligns with the field connector receptacle tube <NUM>. The cylindrical faces of both bore internal wall 212a and guide tube <NUM> for the field connection annular area <NUM>. Trapped air from chambers 292a will escape through the field connection annular area <NUM>.

In Step <NUM> (<FIG>), the field connector plug <NUM> is pushed over the field connector receptacle guide tube <NUM>. As the field connector plug <NUM> engagement with the field connector receptacle guide tube <NUM> is increasing, more air from chambers 292a and 292b will be expelled through the field connection annular area <NUM>. At the same time, the field connector plug contact socket <NUM> and the field connector plug contact socket insulator <NUM> enter the field connector receptacle contact pin individual annular chamber 270a,b,c and field connector plug contact socket <NUM> starts connecting with the field connector receptacle pin <NUM>. Dielectric fluid <NUM> from the field connector receptacle contact pin individual annular chamber 270a,b,c is pushed out into the field connector plug contact socket bore 292a, and from there part of it is expelled from the connection through the field connection annular area <NUM>.

In Step <NUM> (<FIG>), activation of the field connector receptacle check valve <NUM> takes place. When the field receptacle plug <NUM> is pushed further over the field connector receptacle plug, the field connector plug contact socket insulator shoulder 288a makes contact with the check valve body contact face 266a. At this point there the check valve is still seated, thus no fluid transfer is possible.

In Step <NUM> (<FIG>), shifting of the field connector receptacle check valve body <NUM> takes place. By further movement of the field connector plug <NUM>, the check valve body <NUM> is moved away from the field connector receptacle check valve static seal <NUM>, and the field connector receptacle check valve spring <NUM> is compressed. Since the sealing between the valve body 266a and the sealing element <NUM> is lost, thus creating a new annular fluid path 294a, where the dielectric fluid <NUM>, which is at the internal pressure Pi>Pa, has free passage from annular chamber <NUM> to the field connector plug contact individual annular chamber 292b through the newly created pathway 294a. This is the only dielectric fluid passage path, as there is a sealing between the check valve body <NUM> and the field connector receptacle contact pin <NUM>, by means of a dynamic sealing element <NUM>.

Dielectric fluid <NUM> in excess will not be expelled from the connection through the connection annular area <NUM>, as the field connector receptacle/plug sealing element <NUM> enters the field connector plug contact socket bore 292a, and forms a seal against the field connector plug bore internal wall 212a. A small volume of trapped air <NUM> starts to be compressed inside chambers 292c,d,e,f and dielectric fluid <NUM> enters all annular chambers 292c,d,e,f.

In Step <NUM> (<FIG>), the field connector is fully engaged. The field connector plug end <NUM> is in contact with the end face of the field connector receptacle housing <NUM>. At this point, the field connector is fully engaged, and the field connector plug contact socket <NUM> and the field connector receptacle contact pin <NUM> are fully connected. Any remaining small amount of air <NUM> is compressed in the annular chambers 292e and 292f. All other voids are filled with dielectric fluid <NUM>, at pressure P.

After Step <NUM>, the connector system is now ready for testing. Special tools are used to pressure test the connection <NUM> through the test orifice <NUM>.

After pressure testing, the tool is deployed downhole. The manifold <NUM> will be filled by the well bore fluid <NUM> and the well bore hydrostatic pressure Pw.

Referring now to <FIG>, there is depicted a field bypass connector system <NUM> for downhole completion equipment <NUM>, such as a packer (or other pieces of equipment)(shown here in partial longitudinal cut-away view to illustrate the cable(s) passing therethrough. For example, a splice-less assembly of cables passes through completions equipment <NUM>. In this instance of a field connector run through completions equipment (here a packer is shown), the connectors are shop installed in a no-splice version. The field bypass connector system <NUM> depicts a serial field connector assembly <NUM> illustrating back to back connected receptacles going through a packer. On the opposite side of each back to back connected receptacles are field mating connections to permit, e.g., connection of plug extension cables directed to the ACP, where cables can then continue down the string via ESP cable <NUM> (126a, 126b, 126c) or for the connection of cables directed to the surface via ESP cables <NUM>.

In this instance, the field bypass connector system <NUM> generally comprises the desired piece of equipment <NUM> (here, shown as a packer) mounted on the upper tubing assembly <NUM> (employing one or more standard tubing couplings <NUM>). As will be apparent, at each end of the field bypass connector system <NUM>, there is provided a clamp-type field connector receptacle <NUM> installed in standard tubing without need of prior orientation features. This provides for ease in making up the tool owing to the axial and rotational flexibility of the connectors. Receptacle <NUM> can be pressure compensated or not. The ESP lines/electrical cable (here, tubing encapsulated cables <NUM>, 410a, 410b, 410c) connect between both of the opposed receptacles <NUM>, and run through the packer <NUM>. These electric cables <NUM> (and others described herein) may be single or multiphase. Each of the respective receptacles <NUM> is designed to receive a corresponding clamp-type field connector plug <NUM> to again connect the ESP cables on the field bypass connector system <NUM> to upper and lower lengths of ESP cables (<NUM> to surface or <NUM> to other downhole location along the production tubing). The clamp-on style field connector plug <NUM> may be installed in standard tubing without need of prior orientation features. For example, this dual connector system provides these clamp-on style field connector pairs <NUM>, <NUM> with the ability to slidably (along axial length of upper production tubing <NUM>) and rotatably (about tubing <NUM>) adjust the position of the upper/lower receptacle pair (<NUM>, <NUM>) to permit easy mating at the downhole end (where receptacle attaches to the TEPC from the ESP, which itself can vary in its make up from application to application thereby not permitting one to have a universal location for the downhole receptacle connection). Thus, once the lower receptacle is moved to mate with the downhole end, the upper end receptacle likewise moves to its fixed position, but the power cable to the surface can then be adjusted to meet it and make the connection. These dual connectors may preferably be fluid compensated with dielectric fluid as described herein, and in other instances, they are not fluid compensated. Standard high pressure metallic tube bore through fittings <NUM> are provided for securing and hydraulically isolating the interior of the packer (or other equipment employing feed throughs) where tubing <NUM> (410a, 410b, 410c) passes through such feed throughs. Once the clamp-on style connectors are adjusted into their final position, the feed through fittings <NUM> are tightened.

The field connector plug clamp body/ housing <NUM> serves as a housing and clamp body for the field connector plug <NUM>. The plug <NUM> further comprises one or more electrical sockets <NUM> (three shown here, 414a, 414b, 414c) corresponding to the number of connections required to make with receptacle <NUM>. Each electrical connection socket <NUM> serves as the electrical connector socket on the field connector receptacle <NUM> and can employ single or multiple sockets that will receive and connect to the electrical connection pin(s) 420a,b,c.

The field connector receptacle clamp body/ housing <NUM> serves as a housing and clamp body for the field connector receptacle <NUM>. The receptacle further comprises one or more electrical connector pins <NUM> (single or multiple male electrical pins (here shown with three pins 420a, 420b, 420c) to connect into the corresponding number of electrical connection slots <NUM> (414a, 414b, 414c). Standard high pressure metallic tube fittings <NUM> are provided for joining tubing <NUM> (410a, 410b, 410c) into the bulkhead <NUM>. The partial cut-away view of housing <NUM> illustrates the internal cavity <NUM> for dielectric fluid. The cavity <NUM> stores and distributes dielectric fluid, <NUM>, onto receptacle <NUM> to compensate pressure changes. A cavity for wellbore fluid <NUM> also exists. Wellbore fluid <NUM> enters the cavity and applies pressure Pw onto pressure balancing device <NUM>, forcing dielectric fluid <NUM> to counteract the increase on pressure therefore equalizing Pi. The pressure balancing device <NUM> acts as the active element that moves and balances Pi to Pw. This device, <NUM> can be a piston (shown), bladder or bellows.

The two clamp halves of the respective housings <NUM>, <NUM> are attached together in standard fashion, such as, with multiple screws that are recessed in counterbore holes <NUM>.

Multiple fasteners <NUM> are used to join the clamp body halves together. Once the field connector plug clamp <NUM> is connected to the field connector receptacle clamp housing <NUM>, fasteners <NUM> (such as bolt and springe washers) can be used to secure the plug <NUM> to the receptacle <NUM>.

To assist in locking down the respective clamps <NUM>, <NUM> to the tubing, the inside surfaces of clamps <NUM>, <NUM> may be equipped with locking features <NUM>, <NUM> comprising slip-type internal grooves on the top and bottom sides of clamp housing <NUM>, <NUM> to bite down on the tubing when the screws are torqued. This provides axial and torsional locking of the clamp.

The field connector receptacle <NUM> and field connector plug <NUM> can be mounted on a field connector mounting clamp-type assembly <NUM>, which can in turn be secured to tubing <NUM>. Clamp type assembly <NUM> comprises an upper body <NUM> having an outer face in which receptacle <NUM> and plug <NUM> are mounted, and a lower body <NUM>. A mounting clamp locking feature <NUM> may also be employed on the top inner face of upper body <NUM> and bottom inner face of lower body <NUM>. Slip-type internal grooves 'bite' down on the tubing when screw(s) <NUM> or other attachment mechanisms are torqued. This provides axial and torsional locking on the clamp. A cable clamp <NUM> clamp secures cable <NUM> onto upper body <NUM>. A cable protector <NUM> protects penetrator cable(s) <NUM> (464a,b,c) from damage. Penetrator cable(s) may be single or multiple, and are intended to pass through the completion equipment <NUM> to connect to the receptacle <NUM>. Plug fasteners <NUM> secure the plug <NUM> onto the upper body <NUM>. Receptacle fasteners <NUM> secure the receptacle <NUM> onto upper body <NUM>. Mounting clamp fasteners <NUM> fasten, secure, and clamp upper body <NUM> and lower body <NUM> together onto tubing <NUM>, by e.g., engaging threads in the threaded holes <NUM> in lower body <NUM>. Face thread <NUM> may be employed for securing the receptacle <NUM> to the plug <NUM> axially. This also energizes the seals.

In one instance of the field bypass connection system, check valves are employed. In another instance, check valves are not employed.

In one instance of the field bypass connection system, each connector (plug <NUM> and receptacle <NUM>) will feature internal dielectric fluid compensation. In another instance, the tubing encapsulated cables can also employ internal dielectric fluid compensation. In another instance, each connector and each cable will employ internal dielectric fluid compensation.

In one instance, the connectors are charged in situ with the dielectric fluid and the pistons/bellows employed are set. Each individual connector can be individually charged with the dielectric fluid, or the entire chamber could be charged with the dielectric fluid.

Although it is envisioned that the cable system could be charged with dielectric fluid along the entire production tubing string to surface, dielectric fluid compensation is preferably provided up to a packer or other equipment in the upper production string.

It will also be understood that the cable tubing could incorporate other biphase conduits, e.g., downhole pressure sensor wires, downhole hydraulic conduit, or downhole gauges.

Referring again to <FIG>, <FIG> and 5C, there is shown an alternate field connector plug <NUM> is shown with tubing encapsulated cable <NUM> (126a,b,c). In this instance, the field connector plug <NUM> comprises tubing encapsulated cable connected directly.

Referring also to <FIG>, there is shown an alternate clamp mechanism <NUM> for mounting the plug <NUM> and receptacle <NUM> comprising a clamp with securing features.

Referring now to <FIG> there is shown a retrievable wet connect system <NUM> also employing intensified dielectric fluid compensation according to the teachings herein. The system <NUM> is a plug-arm assembly or pressure compensated female connector system. At one end of system <NUM> is a pressure balance assembly <NUM> contained within pressure balance housing/body <NUM>. serving as a pressure balancing and connector section. This connector end preferably has a split ring connection <NUM> to facilitate aligned threading. Bulkhead seals <NUM> are provided to make a sealed connection when the high pressure bulkhead connector <NUM> is connected. The pressure balance system <NUM> provides also plug arm extension tube body <NUM>. A secondary housing <NUM> extends axially inwardly from the back side 506a of the bulkhead connector for a desired length to form a fluid compensation chamber 540a for containing a desired volume of dielectric fluid <NUM>.

<FIG> show the housing <NUM> of a bulkhead connector or high pressure connector <NUM>. The pressure balance assembly <NUM> contains an internal chamber 540a (formed by secondary housing <NUM>) for receiving dielectric (pressure compensating) fluid <NUM> at a desired pressure Pi (<NUM>) through port <NUM>. Chamber 540a forms part of the overall dielectric oil <NUM> volume capacity <NUM>. The dielectric oil <NUM> volume capacity comprises, e.g., the internal space 540a of the secondary housing <NUM>, the interior annular space 540b within each tube <NUM> surrounding each electric cable <NUM>, the bellows annular space 540c between the outside surface 550c of the bellows <NUM> and the inside surface of the compensator main body <NUM>, the internal spaces 540d, 540e on the interior of connections <NUM> (520a, 520b), the internal spaces 540f within bulkhead connector <NUM>, and the interior space <NUM> defined as the oil cavity <NUM> on the inside of the downhole female wet connect arm main body/housing <NUM>. The tubes 524a,b,c are connected to compensator main body <NUM> via sealed tube fittings/connections 520a, 520b.

The metal encapsulating tubes <NUM> (524a, 524b, 524c) are used to encapsulate/house electric cables <NUM> (536a, 536b, 536c) - the insulated power or instrumentation cables. Each tube <NUM> extends between tube fitting female connector sections <NUM> (520a, 520b) on each end for sealing the encapsulated tube volume. Each tube <NUM> houses a cable <NUM> and contains an internal annular space or cavity 540b around the outside of each cable <NUM>, each annular space 540b containing dielectric fluid <NUM>, and forming part of the overall dielectric oil volume cavity <NUM>.

A bellows system <NUM> is connected to the compensator main body <NUM>. The bellows comprises an expandable body <NUM> having a first end 550a, a second end 550b, an outer surface 550c, an internal surface 550d and an internal cavity <NUM> in fluid communication with wellbore fluid <NUM> residing within inner annular spaces of the tool. The expandable body <NUM> extends within the compensator main body <NUM> from the bellows body second end 550b where it is secured at its second end 550b to the end of the main body <NUM> using, e.g., a retention mechanism <NUM>, such as a snap ring or the like. The outer surface 550c of the bellows <NUM> extends within the main body <NUM> forming an annular channel 540c segment of dielectric oil chamber <NUM> between the outer bellows surface 550c and the inner surface of the main body <NUM>. A fixed bellows sealing cap <NUM> creates a seal around the point of connection to prevent wellbore fluid <NUM> from entering into the dielectric fluid chamber 540a and mixing with the dielectric fluid <NUM> contained within the fluid compensation areas <NUM> (a-g). At the first end of the bellows 550a, a moving bellows cap <NUM> serves to seal the moving end of the bellows against any wellbore fluid <NUM> from the internal bellows cavity <NUM> and to provide compensating motion in response to wellbore fluid pressure Pw. The dielectric fluid chambers <NUM> (a, b, c, d, e, f) are in fluid communication with each other, and the internal pressure Pi of the dielectric fluid <NUM> contained within the chambers <NUM> is established initially as the desired fluid pressure upon introducing the dielectric fluid <NUM> into the port <NUM>, and then can change in response to interaction with the bellows <NUM>.

Referring also to <FIG> and <FIG>, at the opposite end of system <NUM> is a female wet connect assembly or plug head assembly <NUM>. The female wet connect assembly <NUM> further comprises a plug arm assembly hook <NUM> serving as a mounting hook for the plug arm assembly, and a plug arm front plate <NUM> serving as the front plate of the female connector assembly. The plug arm front plate <NUM> is outfitted with female connector sockets <NUM> (a, b, c) that are protected with spring loaded retractable pins <NUM> which serve to protect the female contact body area <NUM> of the female wet connect. The female wet connect further comprises an insulator body <NUM> for insulating the contact of the female wet connector. As described earlier, metal encapsulated tubing <NUM> connects with the female wet connect via connections 520b and the internal electrical cable <NUM> in each tube continues into the female contact body <NUM> to complete its connection from the bulkhead connector <NUM> to the wet connect. As noted above, the dielectric (pressure compensating) fluid <NUM> (at a desired pressure P; (<NUM>)) resides within the female wet connect as follows: The dielectric fluid is introduced through port <NUM> to fill the internal chambers <NUM>. The dielectric fluid is introduced into chamber 540a forms part of the overall dielectric oil <NUM> volume capacity <NUM>, and the fluid <NUM> is therefore in fluid communication throughout the dielectric fluid chamber <NUM>, including the internal space 540a of the secondary housing <NUM>, the interior annular space 540b within each tube <NUM> surrounding each electric cable <NUM>, the bellows annular space 540c between the outside surface 550c of the bellows <NUM> and the inside surface of the compensator main body <NUM>, the internal spaces 540d, 540e on the interior of connections <NUM> (520a, 520b), the internal spaces 540f within bulkhead connector <NUM>, and the interior space <NUM> defined as the oil cavity <NUM> on the inside of the downhole female wet connect arm main body/housing <NUM>. The plug head assembly further comprises at its end a threaded connection for threading the plug-arm assembly <NUM> onto a lower section, such as a deployment section in the tubing string.

In this instance, the dielectric fluid <NUM> is introduced via sealed filler port plug <NUM> into fluid conduits to provide additional compensation around the wet connector, incorporating the concepts and teachings of the prior disclosure provided herein. A bellows assembly or bellows compensation system/mechanism <NUM> reacts to the wellbore pressures <NUM>, Pw. <FIG> shows the electrical connectors 520a, 520b mounted on housing for exemplary oil well applications. The connectors at either end are joined by conduits <NUM>. Here, the bellows <NUM> bellows/accumulator system <NUM> is similar to bellows <NUM> shown in connection with other aspects of the disclosure. Dielectric fluid <NUM> is introduced into an internal passageway <NUM> (which interacts with bellows as described before) to provide additional fluid compensation around the seal area above what is already provided by the existing seals.

Claim 1:
A field bypass connector system (<NUM>) for a downhole completion tool (<NUM>) comprising:
a. a downhole completion tool (<NUM>) mounted on a production tubular member (<NUM>), the completion equipment (<NUM>) having an internal feedthrough passage;
b. a first clamp-type field connector (<NUM>, <NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction uphole from the completion tool (<NUM>), the first clamp-type field connector (<NUM>, <NUM>) having a housing (<NUM>, <NUM>) with a first internal chamber, the position of the first clamp-type field connector (<NUM>, <NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>);
c. a second clamp-type field connector (<NUM>, <NUM>) mounted on the tubular member (<NUM>) at a position along the tubular member (<NUM>) in the direction downhole from the completion tool (<NUM>), the second clamp-type field connector (<NUM>, <NUM>) having a housing (<NUM>, <NUM>) with a second internal chamber (<NUM>), the position of the second clamp-type field connector (<NUM>, <NUM>) being axially and rotationally adjustable when being mounted on the tubular member (<NUM>);
d. one or more electrical conduits (<NUM>; <NUM>) having a first conduit end and a second conduit end, the first conduit end being connected to the first connector (<NUM>, <NUM>), the second conduit end being connected to the second connector (<NUM>, <NUM>), the one or more conduits (<NUM>; <NUM>) passing through the feedthrough passage; and
e. a first and second dielectric fluid port (<NUM>), wherein:
i. the first dielectric fluid port (<NUM>) is in fluid communication with the first internal chamber for introducing a dielectric fluid (<NUM>) into the first chamber, the dielectric fluid (<NUM>) creating an internal fluid pressure; and
ii. the second dielectric fluid port (<NUM>) is in fluid communication with the second internal chamber (<NUM>) for introducing a dielectric fluid into the second chamber (<NUM>), the dielectric fluid (<NUM>) creating an internal fluid pressure.