Source: https://patents.google.com/patent/DE602004002028T2/en
Timestamp: 2020-08-14 18:39:08
Document Index: 359690888

Matched Legal Cases: ['Application No. 2002', 'Application No. 6453816', 'art 45', 'art 210', 'art 220', 'art 220', 'art 210', 'art 220', 'art 210', 'art 220', 'art 210', 'art 220', 'art 220', 'art 220', 'art 220', 'art 220', 'art 220', 'art 220', 'art 310', 'art 320', 'art 320', 'art 310', 'art 320', 'art 310', 'art 320', 'art 310', 'art 320', 'art 310', 'art 310', 'art 320', 'art 310', 'art 310', 'art 410', 'art 420', 'art 420', 'art 410', 'art 420', 'art 410', 'art 420', 'art 410', 'art 420', 'art 410', 'art 410', 'art 410', 'art 410', 'art 420', 'art 420', 'art 420', 'art 420', 'art 420', 'art 420']

DE602004002028T2 - Integrity feature of a thread for expandable pipe connections - Google Patents
Integrity feature of a thread for expandable pipe connections
DE602004002028T2
DE602004002028T2 DE602004002028T DE602004002028T DE602004002028T2 DE 602004002028 T2 DE602004002028 T2 DE 602004002028T2 DE 602004002028 T DE602004002028 T DE 602004002028T DE 602004002028 T DE602004002028 T DE 602004002028T DE 602004002028 T2 DE602004002028 T2 DE 602004002028T2
DE602004002028T
DE602004002028D1 (en
Peter Aberdeen Ellington
Gary Stanley Pendleton
2003-05-22 Priority to US443664 priority Critical
2003-05-22 Priority to US10/443,664 priority patent/US7025135B2/en
2004-05-21 Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
2006-10-05 Publication of DE602004002028D1 publication Critical patent/DE602004002028D1/en
2007-03-15 Publication of DE602004002028T2 publication Critical patent/DE602004002028T2/en
embodiments The present invention relates generally to the Completion of drilling, and more in detail on tubular connections.
Around Hydrocarbons in subsurface formations accessible to Typically, it is necessary to drill a hole in it Soil to drill. The process of drilling a hole and the subsequent Completion of the borehole to form a bore requires the Use of different pipe strands. The pipes are more typical Way relocated within the borehole, taking the mechanical and on the sealing related integrity the joined together Compounds of vital importance in the original Assortment of pipes while the expansion of the tubes and after the expansion of the tubes is.
In typically, threaded connections are used, around several tubular Parts to connect end to end. This usually gets done executed that provided pipes be made with a simple threaded connection, with external and Internal thread, are provided. The externally threaded end is generally as a pin, and the internally threaded end referred to as a box. The pipes are connected or "put together" by a torque is transmitted against one of the pipes, while the other tube is typically held stationary. torque is transmitted in a single direction according to the direction which corresponds to the composition of the connection. Any torque, that is transferred to the connection in the direction of the compilation, then has the effect of the threaded connection even further tighten.
If Sometimes pipes are laid, there is a need to be connected To lay pipes later expanded by different types of expansion mechanisms become. In the simplest type of expansion tool is a simple cone-shaped body used, which is typically in a bore at the bottom Area of the lining, which is to be expanded, is guided. The expansion tool is then pushed up the hole by both on the work string is pulled from the surface as well a pressure is applied from below the cone. A basic one Arrangement of a conical expansion tool is disclosed in the US patent 5,348,095 issued to Worrall et al. described. If at the expanded Conical tool is pulled, this has the effect of having a section of the tube in sealing cooperation with a surrounding wall the formation is widened so that thereby the annular area is sealed off in between. More recently, they are rotating Expansion tools have been developed. For rotating expansion tools one or more rows of compliant rolls used that starting from a basic body of the expansion tool to be pressed outward with the surrounding Cooperate pipe and widen this. The expansion tool is rotated in the borehole, so that the actuated rollers against the inner surface of the Pipe can act, which is to be widened to widen the tubular body in the circumferential direction. Radially expanding tools are described in U.S. Patent 6,457,532. that to Simpson et al. was granted.
Tube, to a later Time to be expanded are typically downhole relocated where the mechanical and sealing integrity of the joints or joints is of critical importance, both in the original as well as in the expanded state of the tubes. At the current Method of assembling expandable pipes Threaded connections used in the same way as conventional, in oilfields used pipes can be set and handled, i. which are nested and directed by a left or right Rotation are bolted together and finally with a torque is applied to produce the sealing integrity. This method of joining pipes, although it is a reliable means for connecting pipes that do not expand, has become proved to be problematic when such tubes are widened. The reasons therefor lie primarily in the changes in geometry the connection during the expansion due to the stresses on the threaded or Connection area are applied. For example, you can conventional Pipes that are widened at the junction, from each other to solve, so that lower tube can fall into the hole.
It is well known and understood that in the expansion of tubes with a solid wall, the material in the tube wall is plastically deformed in more than just the circumferential direction. In order for a pipe to increase in diameter by plastic deformation, the material for forming the additional peripheral portion of the wall in the larger diameter must come from the pipe wall itself, either by a reduction in wall thickness or by a reduction in pipe length, or by a combination from at the. In a smooth wall section of the tube, this process normally proceeds in a relatively controlled and even manner. However, at the point of a threaded connection, the changes in the wall cross-section, such as the box or pin, introduce very complex and non-uniform stresses during and after expansion. These stresses that occur during expansion can significantly change the thread shape and affect the integrity of the joint both in terms of its mechanical strength and in terms of its sealing ability.
Out For this reason, there is a need for an improved pipe connection, which is able to be expanded without her loses mechanical or seal integrity. An example for Such a compound is disclosed in patent application US 2002/0163192 described.
The The present invention relates to an in-bore expandable connection comprising a tubular pin member, the with an outward pointing, tapered, threaded portion is provided, and a tubular Box part, which with an inwardly facing, tapered, threaded portion is provided, with the threaded provided portions connect when the tubular pin portion with the tubular Box part joined together becomes. Such a compound is known from US Patent Application No. 2002/0163192 (Coulon et al.). It is an object of the present invention to improve the compound known from the prior art, and to solve this task, stands out an expandable connection for a hole of the type like It is called in the preamble of claim 1, characterized in that a wall thickness of the tubular Pin portion along a substantial part of the outward-facing, tapered threaded portion substantially is constant, and / or a wall thickness of the tubular box part along a essential part of the inwardly facing, tapered, threaded portion is substantially constant. For this reason, the threaded portions form one Connection with a predetermined integrity when the tubular pin part with the tubular Box part joined together being, being the integrity the connection during a radial of the connection is substantially maintained. In particular, the connection defines an interface that is not parallel to a longitudinal axis of either the tubular one Pin part or the tubular box part is.
In a preferred embodiment an expandable connection for a bore according to the invention, an expandable connection for a A bore according to claim 1, wherein an outer diameter of the tubular box part towards at least a part of the inwardly facing, tapered, threaded provided portion is smaller than an outer diameter of the tubular box part across from a non-threaded portion of the tubular box part. In particular, an expandable connection for a bore according to claim 1 or 2, characterized in that an outer surface of the tubular box part substantially parallel to an inner surface of the tubular box part along a substantial part of the tapered, threaded provided section is. In another preferred embodiment an expandable connection for a bore according to the present invention, an expandable Connection for A bore according to claim 1, 2 or 3, characterized the existence inner diameter of the tubular Pin opposite at least part of the outwardly facing, tapered, threaded portion is smaller than an inner diameter of the tubular Pin opposite a non-threaded portion of the tubular pin portion. More specifically, an expandable connection for a hole after one of preceding claims 1 to 4, characterized in that an outer surface of the tubular pin portion substantially parallel to an inner surface of the tubular pin member along a substantial part of the tapered, threaded provided section is.
The U.S. Patent Application No. 6453816 (Noel) discloses a threaded fastener provided pipe connection for the petroleum and gas industry, wherein said known compound is not expandable is.
In order to the way in which the above features of the The present invention can be understood in detail, is a More detailed description of the invention, the above briefly summarized with reference to embodiments some of which are illustrated in the accompanying drawings. It should be noted, however, that the appended drawings only typical embodiments of the present invention and therefore should not be construed as limiting the scope of the invention restrict since the invention is applied to other, equally effective embodiments can be.
1 shows a side view, in the raw are shown within a borehole, as well as a representative expansion tool at a connection between two pipes.
2 shows a threaded connection according to an embodiment of the present invention in more detail.
3 shows a threaded connection according to another embodiment of the present invention.
4 illustrates a threaded connection according to yet another embodiment of the present invention.
1 illustrates an embodiment of the present invention in use within a bore 10 , In 1 is a representative drill hole 2 represented, a soil surface 6 , a formation 4 , a drill string or continuous strand 8th , a first pipe 101 , a second pipe 201 , a representative expansion tool 40 which is a basic body 42 and a widening part 45 or a roller, a bore 400 passing through the pipes and a connection 60 or a connection between the first pipe 101 and the second tube 201 ,
In operation, the first pipe 101 and the second tube 201 on the surface 6 assembled according to usual insertion and Verschraubungsverfahren together. The plug-in methods can be carried out with tubes arranged in a configuration with the pin on top and the box on the bottom, or in a configuration with the pin down and the box on top. After laying, the tubes can be flared from the inside by any known method known to those skilled in the art. The expansion process may be in any axial and / or rotational direction within the tubes 101 and 201 be executed. As shown, a laying tool with a widening tool 40 which is attached to it, along the hole 400 the tubes moved up. At a desired location, an operator expands the tubes. If the expansion tool 40 the connection 60 between the first pipe 101 and the second tube 201 reaches, becomes an inner wall of the pin portion of the second tube 201 in an inner wall of the box portion of the first pipe 101 widened. The connection 60 between the pipes 101 and 201 is able to expand without losing its mechanical or seal integrity.
2 explains a threaded connection 200 in more detail, in accordance with an embodiment of the present invention. The connection 200 has a pin part 210 on, at a threaded portion of the first tube 101 is formed, and a box part 220 attached to a threaded section of the second tube 201 is trained. In one embodiment, the threaded portions of the pin member 210 and the box part 220 tapered. The pin part 210 has helical threads 212 which extend along its length. The box part 220 has helical threads 224 which are shaped and dimensioned to the helical threads 212 fit while assembling the threaded connection 200 , The threaded sections of the pin part 210 and the box part 220 form the connection 200 with a predetermined integrity when the pin part 210 with the box part 220 is composed. Additionally, depending upon the characteristics of the bore, the threads may be coated with Teflon, an inert sealant, or other material known to those skilled in the art for sealing purposes. The threads may be dovetailed threads, as described in US Pat. No. 3,989,284 issued to Blose. The threads may be machined on smooth-ended pipes, on pipes with both ends upset, on pipes with a smooth end and upturned end, or on other types of joints, such as those typically found in the oil and gas industry. It will be understood by those skilled in the art that embodiments of the present invention are not limited to only particular types of pipe ends or types of threads.
In one embodiment, the box part is 220 designed so that the wall thickness 250 of the box part 220 along a substantial part of the threaded portion is substantially constant, so that there is the possibility that the threaded portion of the box part 220 during expansion parallel to the threaded portion of the pin portion 210 can be bent. The outer surface 230 of the box part 220 As such, along the threaded portion may be substantially parallel to the inner surface 235 of the box part 220 along the threaded portion, and the outer diameter of the box part 220 along the threaded portion may be smaller than the outer diameter of the box part 220 along the non-threaded section. That's the connection 200 able to be easily widened and without essentially losing its mechanical or seal integrity.
3 explains a threaded connection 300 according to another embodiment of the present invention. The connection 300 has a pin part 310 on, at a threaded portion of the first tube 101 is formed, and a box part 320 attached to a threaded section of the second tube 201 is trained. In one embodiment, the threaded portions of the pin member 310 and the box part 320 tapered. The pin part 310 has helical threads 312 on, which extend over its length. The box part 320 has helical threads 324 on the so dimensioned and shaped that they during the assembly of the threaded connection 300 to the helical threads 312 fit. The threaded sections of the pin part 310 and the box part 320 form the connection 300 with a predetermined integrity when the pin part 310 with the box part 320 is joined together. Additionally, depending upon the characteristics of the bore, the threads may be coated with Teflon, an inert sealant, or other material known to those skilled in the art for sealing purposes. The threads may be dovetailed threads, as described in US Pat. No. 3,989,284 issued to Blose. The threads may be machined on smooth-ended pipes, on pipes with both ends upset, on pipes with a smooth end and upturned end, or on other types of joints, such as those typically found in the oil and gas industry. It will be understood by those skilled in the art that embodiments of the present invention are not limited to only particular types of pipe ends or types of threads.
The pin part 310 is designed so that the wall thickness 350 of the pin part 310 along a substantial portion of the threaded portion is substantially constant, so that there is the possibility that the threaded portion of the pin portion 310 during expansion parallel to the threaded portion of the box part 320 is bent. The outer surface 335 of the pin part 310 As such, along the threaded portion may be substantially parallel to the inner surface 330. of the pin part 310 along the threaded portion, and the inner diameter of the pin portion 310 along the threaded portion may be smaller than the inner diameter of the pin portion 310 along the non-threaded section. That's the connection 300 capable of being radially expanded without substantially losing its mechanical or seal integrity.
4 explains a threaded connection 400 according to another embodiment of the present invention. The connection 400 has a pin part 410 on, at a threaded portion of the first tube 101 is formed, and a box part 420 attached to a threaded section of the second tube 201 is trained. In one embodiment, the threaded portions of the pin member 410 and the box part 420 tapered. The pin part 410 has helical threads 412 on, which extend over its length. The box part 420 has helical threads 424 which are sized and shaped to fit during assembly of the threaded connection 400 to the helical threads 412 fit. The threaded sections of the pin part 410 and the box part 420 form the connection 400 with a predetermined integrity when the pin part 410 with the box part 420 is joined together. Additionally, depending upon the characteristics of the bore, the threads may be coated with Teflon, an inert sealant, or other material known to those skilled in the art for sealing purposes. The threads may be dovetailed threads, as described in US Pat. No. 3,989,284 issued to Blose. The threads may be machined on smooth-ended pipes, on pipes with both ends upset, on pipes with a smooth end and upturned end, or on other types of joints, such as those typically found in the oil and gas industry. It will be understood by those skilled in the art that embodiments of the present invention are not limited to only particular types of pipe ends or types of threads.
The pin part 410 is designed so that the wall thickness 450 of the pin part 410 along a substantial part of the threaded portion is substantially constant. The outer surface 435 of the pin part 410 As such, along the threaded portion may be substantially parallel to the inner surface 430 of the pin part 410 along the threaded portion, and the inner diameter of the pin portion 410 along the threaded portion may be smaller than the inner diameter of the pin portion 410 along the non-threaded section.
The box part 420 is designed so that the wall thickness 451 of the box part 420 along a we significant portion of the threaded distance is substantially constant. The outer surface 431 of the box part 420 As such, along the threaded portion may be substantially parallel to the inner surface 436 of the box part 420 along the threaded portion, and the outer diameter of the box part 420 along the threaded portion may be smaller than the outer diameter of the box part 420 along the non-threaded section. That's the connection 400 able to expand easily and without substantially losing its mechanical or sealing integrity. Although embodiments of the present invention have been described with reference to a box part, other types of tubes similar to a box part, such as a coupling, are also contemplated by the embodiments of the invention.
While the The foregoing description is based on embodiments of the present invention Invention is directed, can other and further embodiments The invention can be developed without the basic area of the invention, this range being characterized by the following claims is fixed.
Expandable connection ( 200 . 300 . 400 ) for a hole ( 10 ) comprising: a tubular pin member ( 210 . 310 . 410 ) provided with an outwardly facing, tapered, threaded portion; and a tubular box part ( 220 . 320 . 420 ) which is provided with an inwardly facing, tapered, threaded portion, wherein the threaded portions of a compound ( 200 . 300 . 400 ), when the tubular pin part ( 210 . 310 . 410 ) with the tubular box part ( 220 . 320 . 420 ), characterized in that a wall thickness ( 350 . 450 ) of the tubular pin part ( 210 . 310 . 410 ) is substantially constant along a substantial portion of the outwardly facing, tapered, threaded portion, and / or a wall thickness ( 250 . 451 ) of the tubular box part ( 220 . 320 . 420 ) is substantially constant along a substantial portion of the inwardly facing, tapered, threaded portion.
Expandable connection for a bore according to claim 1, characterized in that an outer diameter of the tubular box part ( 220 . 320 . 420 ) against at least a portion of the inwardly facing, tapered, threaded portion smaller than an outer diameter of the tubular box portion (U.S. 220 . 320 . 420 ) against a non-threaded portion of the tubular box part ( 220 . 320 . 420 ).
Expandable connection for a bore according to claim 1 or 2, characterized in that an outer surface ( 230 . 431 ) of the tubular box part ( 220 . 320 . 420 ) substantially parallel to an inner surface ( 235 . 436 ) of the tubular box part ( 220 ) along a substantial portion of the tapered threaded portion.
Expandable connection for a bore according to claim 1, 2 or 3, characterized in that an inner diameter of the tubular pin part ( 210 . 310 . 410 ) is smaller than at least a portion of the outwardly facing, tapered, threaded portion is smaller than an inner diameter of the tubular pin portion (FIG. 210 . 310 . 410 ) against a non-threaded portion of the tubular pin portion ( 210 . 310 . 410 ).
Expandable connection for a bore according to one of the preceding claims 1 to 4, characterized in that an outer surface ( 335 . 435 ) of the tubular pin part ( 210 . 310 . 410 ) substantially parallel to an inner surface ( 330. . 430 ) of the tubular pin part ( 210 . 310 . 410 ) along a substantial portion of the tapered threaded portion.
Expandable connection for a bore according to one of the preceding claims 1 to 5, characterized in that each tapered threaded portion has a number of threads ( 212 . 224 ) coated with a sealant.
Method of using an expandable connection ( 200 . 300 . 400 ) in a bore ( 10 ), comprising: laying an assembly on a pipe string ( 8th ) into the hole ( 10 ), the assembly comprising: a tubular pin member ( 210 . 310 . 410 ) provided with an outwardly facing, tapered, threaded portion; and a tubular box part ( 220 . 320 . 420 ) having an inwardly facing, tapered, threaded portion; and expanding the assembly in a radially outward direction, characterized in that a wall thickness ( 250 . 451 ) of the tubular box part ( 220 . 320 . 420 ) is substantially constant along a substantial part of the tapered threaded portion, and / or that a wall thickness ( 350 . 450 ) of the tubular pin part ( 210 . 310 . 410 ) along a substantial portion of the tapered threaded portion is substantially constant.
Method according to claim 7, characterized in that the widening of the arrangement comprises that at least a part of the connection ( 200 . 300 . 400 ) is widened.
Method according to claim 7 or 8, characterized in that the widening of the arrangement comprises that the tapered, threaded portions of the tubular pin portion ( 210 . 310 . 410 ) and the tubular box part ( 220 . 320 . 420 ) be widened.
DE602004002028T 2003-05-22 2004-05-21 Integrity feature of a thread for expandable pipe connections Active DE602004002028T2 (en)
US443664 2003-05-22
US10/443,664 US7025135B2 (en) 2003-05-22 2003-05-22 Thread integrity feature for expandable connections
DE602004002028D1 DE602004002028D1 (en) 2006-10-05
DE602004002028T2 true DE602004002028T2 (en) 2007-03-15
DE602004002028T Active DE602004002028T2 (en) 2003-05-22 2004-05-21 Integrity feature of a thread for expandable pipe connections
CA2552722C (en) * 2004-01-12 2012-08-07 Shell Oil Company Expandable connection
EP1754864B9 (en) * 2004-06-22 2012-10-17 Aisin Seiki Kabushiki Kaisha Device for controlling valve opening/closing timing
CN104060946A (en) * 2013-03-21 2014-09-24 宝山钢铁股份有限公司 Ultrahigh torsion-resistance metal airtight drill rod joint
CN104847282A (en) * 2015-05-12 2015-08-19 天津商业大学 Special buckle oil casing sealing structure
WO2019023535A1 (en) * 2017-07-27 2019-01-31 Enventure Global Technology, Inc. Expandable connection with metal-to-metal seal
AU4483296A (en) * 1995-02-01 1996-08-21 Novo Nordisk A/S A threaded joint for two tubular plastic parts
DE69617258T3 (en) * 1995-11-08 2007-02-08 Shell Internationale Research Maatschappij B.V. Developable bohrloch filter tube and method for installing the same
2003-05-22 US US10/443,664 patent/US7025135B2/en not_active Expired - Fee Related
2004-05-20 CA CA 2467899 patent/CA2467899C/en not_active Expired - Fee Related
2004-05-21 EP EP20040076499 patent/EP1479872B1/en not_active Expired - Fee Related
2004-05-21 DE DE602004002028T patent/DE602004002028T2/en active Active
CA2467899C (en) 2012-04-17
CA2467899A1 (en) 2004-11-22
US7025135B2 (en) 2006-04-11
EP1479872A1 (en) 2004-11-24
EP1479872B1 (en) 2006-08-23
US20040231839A1 (en) 2004-11-25
DE602004002028D1 (en) 2006-10-05
US5727303A (en) 1998-03-17 Method of making a tube and fitting assembly
DE60224791T2 (en) 2009-02-12 Thread connection
CA2298901C (en) 2008-04-22 Integral joint for the connection of two pipes
CA2555709C (en) 2012-10-02 Reverse sliding seal for expandable tubular connections
RU2306473C2 (en) 2007-09-20 Pipe threaded joint
EP0803637B1 (en) 2002-06-19 Pipe connector device with pin and box members having corresponding frusto-conical surfaces