Abstract:
A method of creating a synthetic aperture. The method may comprise identifying a static configuration, inputting the static configuration into a dynamic controller, configuring a transmitter with the dynamic controller, and configuring a receiver with the dynamic controller. The method may further comprise inputting operational variables and environmental variables into a dynamic configuration, inputting the dynamic configuration into the dynamic controller, and re-configuring the transmitter and the receiver with the dynamic controller.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    Not applicable. 
       STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
       [0002]    Not applicable. 
       BACKGROUND OF THE INVENTION 
       [0003]    Field of the Invention 
         [0004]    This invention relates to a field for imaging wall thickness variations, changes in tubing, imaging casing through a tube, and imaging multiple tubes using non-destructive means in cased-hole downhole logging applications. The changes and variations of tubing walls may be caused by internal and/or external patches, clamps, corrosions, errosions, and/or any combination thereof. 
         [0005]    Background of the Invention 
         [0006]    Tubing may be used in many different applications and may transport many types of fluids. Tubes may be conventionally placed underground and/or positioned in an inaccessible area, making inspection of changes within tubing difficult. It may be beneficial to measure the thickness variations within a tube while the tube is in use. Previous methods for inspecting tubes have come in the form of non-destructive inspection tools such as electromagnetic devices that may measure magnetic flux-leakage within tubing, which may not be able to detect changes in multi-pipe situations. Additionally, previous methods may not be able to perform multi-pipe azimuthal imaging. Electromagnetic devices may be well suited for tube inspection because they may operate and may be insensitive to any fluid within the tube. 
         [0007]    Previous devices and methods that may measure flux-leakage may only be useful for the detection of localized damage in ferromagnetic pipes. The measurement of flux-leakage may be hindered by the type of tube, thinning of tubing, requirements of a strong magnetic field, strong flux coupling, and a requirement for the device to be in close proximity to the tube walls. Additionally, electromagnetic tools that use eddy-current may be better suited for measuring the integrity of tubing. Drawbacks of a constant eddy-current electromagnetic tool may be that the signal from several frequencies may not penetrate a first wall of tubing and allow inspection of the integrity of a second wall of a larger surrounding tubing. Transient electromagnetic methods using pulsed electromagnetic waves may be limited to increasing the signals from a second tube wall to additional tube walls, have problems optimizing a receiver coil, and may suffer Signal-to-Noise Ratio problems. 
         [0008]    Consequently, there is a need for an electromagnetic tool which may induce a larger amount of eddy-current within surrounding pipe walls. In downhole applications, multi-piping wall variation imaging detection capability that may be accurate and efficient may be in high demand. 
       BRIEF SUMMARY OF SOME OF THE PREFERRED EMBODIMENTS 
       [0009]    These and other needs in the art may be addressed in embodiments by a method for inspecting a tube. A method of creating a synthetic aperture. The method may comprise identifying a static configuration, inputting the static configuration into a dynamic controller, configuring a transmitter with the dynamic controller, and configuring a receiver with the dynamic controller. The method may further comprise inputting operational variables and environmental variables into a dynamic configuration, inputting the dynamic configuration into the dynamic controller, and re-configuring the transmitter and the receiver with the dynamic controller. 
         [0010]    The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter that form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and the specific embodiments disclosed may be readily utilized as a basis for modifying or designing other embodiments for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent embodiments do not depart from the spirit and scope of the invention as set forth in the appended claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]    For a detailed description of the preferred embodiments of the invention, reference will now be made to the accompanying drawings in which: 
           [0012]      FIG. 1  illustrates an embodiment of an inspection system disposed downhole; 
           [0013]      FIG. 2  illustrates an embodiment of a sensor array; 
           [0014]      FIG. 3 a    illustrates an embodiment of a dumbbell-shaped core; 
           [0015]      FIG. 3 b    illustrates an embodiment of a hammer-shaped core; 
           [0016]      FIG. 3 c    illustrates an embodiment of a side tapered core; 
           [0017]      FIG. 3 d    illustrates an embodiment of a center tapered core; 
           [0018]      FIG. 4  illustrates a schematic for dynamic control; 
           [0019]      FIG. 5  illustrates an example of dynamic control of sensor arrays; 
           [0020]      FIG. 6 a    illustrates noise created from an inspection device sporadic movement; 
           [0021]      FIG. 6 b    illustrates dynamic control to prevent noise from sporadic movement of the inspection device; 
           [0022]      FIG. 7  illustrates an aperture to identify a target feature; 
           [0023]      FIG. 8 a    illustrates an electric field produced by a first sensor array, a second sensor array, and a third sensor array; 
           [0024]      FIG. 8 b    illustrates another electric field produced by a first sensor array, a second sensor array, and a third sensor array; 
           [0025]      FIG. 8 c    illustrates another electric field produced by a first sensor array, a second sensor array, and a third sensor array; 
           [0026]      FIG. 8 d    illustrates apertures created from sensor arrays in  FIGS. 8 a , 8 b , and 8 c   ; and 
           [0027]      FIG. 9  illustrates an aperture created through phase shifting. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0028]    The present disclosure relates to embodiments of a device and method for inspecting and detecting characteristics of tubing and devices attached to tubing. More particularly, embodiments of a device and method are disclosed for inspecting a number of tube walls surrounding an innermost tube wall. In embodiments, an inspection device may induce an eddy current in surrounding tube walls by producing an electro-magnetic field, wherein the induced eddy current may be recorded and analyzed for aberrations. Eddy currents may be produced by a sensor array, which may be switched on and off to produce and record an induced eddy current in a tube and/or surrounding tube walls. The eddy current decay and diffusion in the tube walls may be recorded, specifically recording voltage in embodiments, which may produce a function of the tube thickness and electromagnetic properties (e.g. metal conductivity and magnetic permeability) and the configurations of tubes. In embodiments, the power provided to different sensors may be the same and/or different. Manipulation of the configuration of ferri-cores may manipulate the transmission and direction of the electro-magnetic field. 
         [0029]    In embodiments, an inspection device may be a magnetic sensor array with one or more cores, partially and/or fully wound by different number of transmitters and/or receivers. Windings disposed on transmitters and/or receivers may be in any shape and may comprise any number of turns. Further, transmitter coils and/or receiver coils may be disposed and wound on a sensor and/or multi sensors, in which the number of turns may be varied on any portion on the sensor. 
         [0030]    In embodiments, the electro-magnetic field may be generated by a transmitter with any suitable shape and any suitable aperture. The receiver may receive signals with any suitable shape and any suitable aperture. A synthetic aperture produced and recorded by a transmitter and a receiver, respectively, may measure tubing thickness by adaptively controlling the logging speed and vertical resolution, which may decrease motion jitter effect of a downhole logging device. 
         [0031]      FIG. 1  illustrates an inspection system  2  comprising an inspection device  4 , a centralizing module  6 , a telemetry module  8 , and a service device  10 . In embodiments, inspection device  4  may be inserted into tubing  12 , wherein tubing  12  may be contained within casing  14 . In further embodiments, not illustrated, there may be a plurality of tubing  12 , wherein an inner tube may be contained by several additional tubes. In embodiments, as shown, inspection device  4  may be disposed below centralizing module  6  and telemetry module  8 . In other embodiments, not illustrated, inspection device  4  may be disposed above and/or between centralizing module  6  and telemetry module  8 . In embodiments, inspection device  4 , centralizing module  6 , and telemetry module  8  may be connected to tether  16 . Tether  16  may be any suitable cable that may support inspection device  4 , centralizing module  6 , and telemetry module  8 . A suitable cable may be steel wire, steel chain, braided wire, metal conduit, plastic conduit, ceramic conduit, and/or the like. A communication line, not illustrated, may be disposed within tether  16  and connect inspection device  4 , centralizing module  6 , and telemetry module  8  with service device  10 . Without limitation, inspection system  2  may allow operators on the surface to review recorded data in real time from inspection device  4 , centralizing module  6 , and telemetry module  8 . 
         [0032]    As illustrated in  FIG. 1 , service device  10  may comprise a mobile platform (i.e. a truck) or stationary platform (i.e. a rig), which may be used to lower and raise inspection system  2 . In embodiments, service device  10  may be attached to inspection system  2  by tether  16 . Service device  10  may comprise any suitable equipment which may lower and/or raise inspection system  2  at a set or variable speed, which may be chosen by an operator. The movement of inspection system  2  may be monitored and recorded by telemetry module  8 . 
         [0033]    Telemetry module  8 , as illustrated in  FIG. 1 , may comprise any devices and processes for making, collecting, and/or transmitting measurements. For instance, telemetry module  8  may comprise an accelerator, gyro, and the like. In embodiments, telemetry module  8  may operate to indicate where inspection system  2  may be disposed within tubing  12  and the orientation of sensor array  26 . Telemetry module  8  may be disposed at any location above, below, and/or between centralizing module  6  and inspection device  4 . In embodiments, telemetry module  8  may send information through the communication line in tether  16  to a remote location such as a receiver or an operator in real time, which may allow an operator to know where inspection system  2  may be located within tubing  12 . In embodiments, telemetry module  8  may be centered about laterally in tubing  12 . 
         [0034]    As illustrated in  FIG. 1 , centralizing module  6  may be used to position inspection device  4  and/or telemetry module  8  inside tubing  12 . In embodiments, centralizing module  6  laterally positions inspection device  4  and/or telemetry module  8  at about a center of tubing  12 . Centralizing module  6  may be disposed at any location above and/or below telemetry module  8  and/or inspection device  4 . In embodiments, centralizing module  6  may be disposed above inspection device  4  and below telemetry module  8 . Centralizing module  6  may comprise arms  18 . In embodiments, there may be a plurality of arms  18  that may be disposed at any location along the exterior of centralizing module  6 . Specifically, arms  18  may be disposed on the exterior of centralizing module  6 . In an embodiment, as shown, at least one arm  18  may be disposed on opposing lateral sides of centralizing module  6 . Additionally, there may be at least three arms  18  disposed on the outside of centralizing module  6 . Arms  18  may be moveable at about the connection with centralizing module  6 , which may allow the body of arm  18  to be move closer and farther away from centralizing module  6 . Arms  18  may comprise any suitable material. Suitable material may be but is not limited to, stainless steel, titanium, metal, plastic, rubber, neoprene, and/or any combination thereof. In embodiments, the addition of springs  19  may further make up and/or be incorporated into centralizing module  6 . Springs  19  may assist arms  18  in moving centralizing module  6  away from tubing  12 , and thus inspection device  4  and telemetry module  8 , to about the lateral center of tubing  12 . Without limitation, centering inspection device  4  may produce more reliable and accurate voltage readings of tubing  12 . 
         [0035]    Inspection device  4 , as illustrated in  FIG. 1 , may be located below centralizing module  6  and/or telemetry module  8 . Inspection device  4  may be designed to detect defects and measure wall thickness in tubing  12  and surrounding tubing. In embodiments, inspection device  4  may be able to detect, locate transverse and longitudinal defects (both internal and external), determine the deviation of the wall thickness from its nominal value thorough the interpretation of voltage data. Tubing  12  may be made of any suitable material for use in a wellbore. Suitable material may be, but is not limited to, metal, plastic, and/or any combination thereof. Additionally, any type of fluid may be contained within tubing  12  such as without limitation, water, hydrocarbons, and the like. In embodiments, there may be additional tubing which may encompass tubing  12 . Inspection device  4  may comprise a housing  20 , a memory module  22 , a transmitter and receiver controller  24 , and a sensory array  26 . Housing  20  may be any suitable length in which to protect and house the components of inspection device  4 . In embodiments, housing  20  may be made of any suitable material to resist corrosion and/or deterioration from a fluid. Suitable material may be, but is not limited to, titanium, stainless steel, plastic, and/or any combination thereof. Housing  20  may be any suitable length in which to properly house the components of inspection device  4 . A suitable length may be about one foot to about ten feet, about four feet to about eight feet, about five feet to about eight feet, or about three feet to about six feet. Additionally, housing  20  may have any suitable width. The width may include a diameter from about one foot to about three feet, about one inch to about three inches, about three inches to about six inches, about four inches to about eight inches, about six inches to about one foot, or about six inches to about two feet. Housing  20  may protect memory module  22 , a transmitter and receiver controller  24 , and sensory array  26  from the surrounding downhole environment within tubing  12 . 
         [0036]    As illustrated in  FIG. 1 , memory module  22  may be disposed within inspection device  4 . In embodiments, memory module  22  may store all received, recorded and measured data and may transmit the data in real time through a communication line in tether  16  to a remote location such as an operator on the surface. Memory module  22  may comprise flash chips and/or ram chips, which may be used to store data and/or buffer data communication. Additionally, memory module  22  may further comprise a transmitter, processing unit and/or a microcontroller. In embodiments, memory module  22  may be removed from inspection device  4  for further processing. Memory module  22  may be disposed within any suitable location of housing  20  such as about the top, about the bottom, or about the center of housing  20 . In embodiments, memory module  22  may be in communication with differential amplifier  24  and sensor array  26  by any suitable means such as by a connection to differential amplifier  24  and sensor array  26  by a communication line  27 . Memory module  22  may record voltage recordings transmitted from differential amplifier  24 . 
         [0037]    Transmitter and receiver controller  24 , as illustrated in  FIG. 1 , may control the amplitude and phase of transmitter coils, amplifier factor, and signal acquiring period of receiver coils. Transmitter and receiver controller  24  may be pre-configured at the surface with certain logging environment and a logging case, which may be defined as static configuration, discussed below. It may also be dynamically configured by what a receiver may record. Transmitter and receiver controller  24  may be disposed at any suitable location within housing  20 . In embodiments, such disposition may be about the top, about the bottom, or about the center of housing  20 . 
         [0038]    As illustrated in  FIGS. 1 and 2 , sensor array  26  may create an electro-magnetic field, which may induce an eddy current in surrounding tubing  12 . The voltage charge within tubing  12 , from the induced eddy current, may be sensed and recorded by sensor array  26 . In embodiments, the recorded voltage may allow identification of the characteristics of tubing  12 , discussed below. Sensor array  26  may be disposed within a sensor array housing  29 . Sensor array housing  29  may be composed of any suitable non-ferrous material such as plastic, ceramic, and the like. In embodiments, sensor array  26  may be disposed in a fluid within sensor array housing  29 . This may prevent sensor array  26  from moving during operations and further protect sensor array  26  from subsurface pressure. Sensor array  26  may be disposed at any suitable location within housing  20 . Such disposing may be at about the top, about the bottom, or about the center of housing  20 . Additionally, there may be a plurality of sensor arrays  26  disposed throughout housing  20 . As illustrated in  FIG. 2 , sensory array  26  may comprise at least one receiving coil array  32 , at least one ferri-core  30 , and at least one transmitter coil  34 . In embodiments, receiving coil array  32  may comprise any suitable material. Suitable material may be, but is not limited to, aluminum, copper, nickel, steel, and/or any combination thereof. Receiving coil array  32  may be any suitable length. A suitable length may be, but is not limited to, about one inch to about three inches, about two inches to about four inches, about three inches to about six inches, about four inches to about eight inches, about five inches to about ten inches, or about six inches to about twelve inches. Receiving coil array  32  may be longer than ferri-core  30 . Receiving coil array  32  may be any suitable shape. A suitable shape may be, but is not limited to, round, oval, square, triangular, polyhedral, and/or any combination thereof. Receiving coil array  32  may sense voltage from the emitted electro-magnetic field as originally transmitted by sensory array  26 . Difference in the voltages measured from tubing  12  by at least one sensor array  26  may be used to identify characteristics of tubing  12 . The electro-magnetic field may be transmitted, directed, and focused within a desired area by ferri-core  30 . 
         [0039]    Ferri-core  30 , as illustrated in  FIG. 2  may be a medium in which an electro-magnetic field is broadened, which may induce an eddy current within tubing  12 . In embodiments, ferri-core  30  may comprise any suitable material. Suitable material may be, but is not limited to, ferrite, silicon steel, nickel steel, alloy powder core, and/or any combination thereof. Ferri-core  30  may be any suitable length. A suitable length may be, but is not limited to, about one inch to about three inches, about two inches to about four inches, about three inches to about six inches, about four inches to about eight inches, about five inches to about ten inches, or about six inches to about twelve inches. In embodiments, ferri-core  30  may be shorter than receiving coil array  32 . Ferri-core  30  may be any suitable shape. A suitable shape may be, but is not limited to, round, oval, square, triangular, polyhedral, and/or any combination thereof. Additionally, ferri-core  30  may be configured in any suitable structure in which to transmit an electro-magnetic field to and through tubing  12 . As illustrated in  FIGS. 3 a  -3 d   , structures of ferri-core  30  may vary. Specifically, a configuration may be dumbbell-shaped ( FIG. 3 a   ), hammer-shaped ( FIG. 3 b   ), side tapered ( FIG. 3 c   ), and/or center tapered ( FIG. 3 d   ). Each configuration may produce a different type of electro-magnetic field. For example, a dumbbell-shaped ferri-core  30  may focus and/or guide the electro-magnetic field horizontally to a desired depth. A hammer-shaped ferri-core  30  may block magnetic interference from an end of ferri-core  30 . A tapered shaped ferri-core  30  may reduce motion noise. A center tapered ferri-core  30  may focus the electro-magnetic field about the center of ferri-core  30 . In embodiments, ferri-core  30  may be a structure in which receiver coil array  32  and transmitter coil  34  may be disposed. 
         [0040]    Transmitter coil  34 , as illustrated in  FIG. 2  may be a wire, which may be wound around all ferri-cores  30  and receiving coil array  32 . In embodiments, transmitter coil  34  may comprise any suitable material. Suitable material may be, but is not limited to, aluminum, copper, nickel, steel, and/or any combination thereof. In embodiments, transmitter coil  34  may eliminate coupling power between transmitter coil  34  and receiving coil array  32 . This may be accomplished as each ferri-core  30  may transmit magnetic flux with transmitter coil  34 . The magnetic flux may be directed in the same direction due to each ferri-core  30 , which may eliminate individual magnetic flux loops. Transmitter coil  34  may boost the power associated with the production of an electro-magnetic field. This may increase the distance in which the electro-magnetic field may extend from sensor array  26 . During operation, transmitter coil  34  may be energized to produce an electro-magnetic field through ferri-core  30 , which may induce an eddy current in tubing  12 . Transmitter coil  34  may then be switched off, which may allow for receiving coil array  32  to record the voltage within tubing  12 , as produced from the induced eddy current. A microprocessor and/or control unit may be used to direct current into and out of transmitter coil  34 . Current may be used to energize transmitter coil  34 , which may create an electro-magnetic field through ferri-core  30 . Additionally, the microprocessor may be used to record and transmit the recorded voltages within receiving coil array  32 . 
         [0041]    An electro-magnetic field may be produced and emitted from sensor array  26 . In embodiments, the electro-magnetic field may be strong and large enough to induce an eddy current in second tube  38 . It should be noted that electro-magnetic field may induce an eddy current in additional outside tubing. Electro-magnetic field may be directed by ferri-core  30 . As discussed above, different configurations of ferri-core  30  may direct electro-magnetic field differently, which may be selected by the operator. In embodiments, transmitter coil  34  may be turned off and on at any given length of time. When turned on, the transmitter coil  34  may produce an electro-magnetic field, which may be directed by ferri-core  30  and induce eddy current in tubing  12 . Transmitter coil  34  may then be switched off, which may allow for receiving coil array  32  to sense and record the voltage produced by the induced eddy current. Turning transmitter coil  34  on and off may be repeated continuously as measurements of tube  12  are performed. 
         [0042]    Measurements, inspections, and detection may take place as inspection device  4  moves through tube  12  in any direction. Travel time of inspection device  4  through a zone of interest within tube  12  may depend on the duration of pulses and amplitude used to produce and transmit an electro-magnetic field through inspection device  4 . Duration of a pulse may be set so that the signal variation between the excitation time and the “infinite” excitation time may be less than the noise constantly detected at signal level. Duration may vary based on the “electromagnetic” wall thickness of the inspected tube  12 . Electromagnetic wall thickness refers to the given conductivity and relative permeability with tube  12  thickness. The electro-magnetic field created by the pulse may be used to induce an eddy current in tube  12  and/or additional tubing. Additionally, ferri-cores  30  may allow for inspection device  4  to transmit an electro-magnetic field three hundred and sixty degrees, which may allow inspection device  4  to inspect the entirety of tube  12 , surrounding tubes, and/or casing  14 . 
         [0043]    In embodiments, signals recorded by receiving coil array  32  may be processed using information handling system  40 . Referring to  FIG. 1 , information handling system  40  may be disposed within inspection device  4  at any location. Without limitation, information handling system  40  may also be disposed on the surface within service device  10 . Processing may take place within information handling system  40  within inspection device  4  and/or on the surface in service device  10 . Information handling system  40  within inspection device  4  may connect to service device  10  through waveguide  43 , which may be disposed within tether  16 . It is to be understood that waveguide  43  is shown as disposed in  FIG. 1  for illustration purposes only as it is disposed within tether  16 . Information handling system  40  may act as a data acquisition system and possibly a data processing system that analyzes signals from receiving coil array  32 , for example, to derive one or more properties of tubing  12 . 
         [0044]    Without limitation in this disclosure, information handling system  40  may include any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or utilize any form of information, intelligence, or data for business, scientific, control, or other purposes. For example, information handling system  40  may be a personal computer, a network storage device, or any other suitable device and may vary in size, shape, performance, functionality, and price. Information handling system  40  may include random access memory (RAM), one or more processing resources such as a central processing unit (CPU) or hardware or software control logic, ROM, and/or other types of nonvolatile memory. Additional components of information handling system  40  may include one or more disk drives, one or more network ports for communication with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display. Information handling system  40  may also include one or more buses operable to transmit communications between the various hardware components. 
         [0045]    Certain examples of the present disclosure may be implemented at least in part with non-transitory computer-readable media. For the purposes of this disclosure, non-transitory computer-readable media may include any instrumentality or aggregation of instrumentalities that may retain data and/or instructions for a period of time. Non-transitory computer-readable media may include, for example, without limitation, storage media such as a direct access storage device (e.g., a hard disk drive or floppy disk drive), a sequential access storage device (e.g., a tape disk drive), compact disk, CD-ROM, DVD, RAM, ROM, electrically erasable programmable read-only memory (EEPROM), and/or flash memory; as well as communications media such wires, optical fibers, microwaves, radio waves, and other electromagnetic and/or optical carriers; and/or any combination of the foregoing. 
         [0046]    Information handling system  40  may dynamically control sensor array  26  based on the conditions experienced by inspection device  4 .  FIG. 4  illustrates a system diagram of the dynamic controls information handling system  40  may perform during operation. During operation, information handling system  40  may first operate sensor array  26  in a static configuration  42 . Static configuration  42  may be described as the initial configuration of sensor array  26  based on known requirements and the environment inspection device  4  may experience within tubing  12 . It should be noted that there may be one or more initial configurations, which may be selected based on time and/or location of information handling system  40 . Static configuration  42  may be fed to dynamic controller  44 , which may be a component of information handling system  40 . Dynamic controller  44  may then alter transmitter coil  34 , illustrated in the flow chart as item  46 . Configuration of transmitter coil  34  may alter the amplitude and phase of an emitted magnetic field from transmitter coil  34 . As described above, different configurations (Referring to  FIGS. 3 a -3 d   ) may affect the emitted magnetic field in different ways. Additionally, dynamic controller  44  may configure receiving coil array  32 , illustrated in flow chart as item  48 , to record signals and electromagnetic fields produced by tubing  12 . During operation, the movement of inspection device  4  and the requested detail of recording by receiving coil array  32  may include changing static configuration  42 . Dynamic configuration  50  may take the information as to the movement of inspection device  4  and receiving coil array  32  recording requirements into consideration to alter the configuration of transmitter coil  34 , and receiving coil array  32 . Desired alteration may be sent to dynamic controller  44 , which may re-configure transmitter coil  34  and receiving coil array  32  during operation. This may result in more accurate and detailed eddy current measurements  52 . 
         [0047]    Dynamic configuration  50  of sensor array  26  may generate different apertures during operation to compensate for movement of inspection device  4  and downhole conditions. For example, dynamic configuration  50  may boost the signal from transmitter coil  34  as inspection device  4  is moving in one direction, compensate for motion jitters of inspection device  4  which may create unwanted noise, select different types of apertures based on preferred resolution of the aperture and inspection device  4  speed, gain control of aperture for different detection depth, and phase control of transmitter coil  34  for focusing effect. During operation, an induced eddy current in tubing  12  may decay gradually with time. An electromagnetic field recorded by receiving coil array  32  may be interpreted as a received voltage, which may be an integral of the receiver transfer function and eddy current distribution as illustrated in Equation 1 below. 
         [0000]        V   (z,t)   =K·∫H ( z −( z′+Δz   noi(t) )) ·J ( z′,t ) dz′   (1)
 
         [0000]    Within Equation 1, V(z,t) is the voltage reading on receiving coil array  32  at depth z on time t. K is the coefficient of the linear equation. H(z) is the receiving transfer function at depth z, as the tool is moving during the acquisition Δz noi(t)  is the motion noise. During operation, motion noise may be used within Equation (1) during the final voltage reading on receiving coil array  32 , identified as V(z,t). J(z,t) is the eddy current distribution in the pipe at time t. The original eddy current space distribution may be determined by the transmitter aperture. 
         [0048]    As illustrated, in  FIG. 5 , inspection tool  4  is moving in one direction. In embodiments, dynamic configuration  50  may gradually increase receiving aperture  60  as inspection tool  4  moves in one direction. In examples, an inspection tool  4  may comprise a first sensor array  54 , a second sensor array  56 , and a third sensor array  58 . Each sensor array may comprise a transmitter coil  34  and/or receiver coil array  32 . The eddy current induced by ferri core  30 , transmitter coil  34 , may be decaying gradually and may hold a constant position within tubing  12 . Thus, the recorded signal may remain at the same level at different times. Inspection tool  4 , as illustrated in  FIG. 5 , is moving in an upward motion. Transmitter coil  34  may be energized, denoted as a gain of 1, to produce an eddy current in a first sensor array  54 . Gain may be defined as the measurement of the amount of energy within transmitter coil  34  and/or receiving coil array  32 . As illustrated, second sensor array  56  and third sensor array  58  may not have energized their respective transmitter coil  34 . Sensing the constant movement in a single direction, dynamic configuration  50  increases the gain for receiving coil array  32  at first sensor array  54 , second sensor array  56 , and third sensor array  58 . As discussed above, the eddy current produced by transmitter coil  34  in first sensor array  54  may be decaying gradually and may hold a constant position. The graph in  FIG. 5  illustrates induced eddy current  62  within tubing  12 . Without limitation, to record induced eddy current  62 , receiving coil array  32  on first sensor array  54  may be energized with a gain of 1, second sensor array  56  may be energized with a gain of 2, and third sensor array  58  may be energized with a gain of 4. It should be noted that the gain of any receiving coil array  32  may be altered for any conditions downhole. Energizing receiving coil array  32  on first sensor array  54 , second sensor array  56 , and third sensor array  58  may produce aperture  60 . Aperture may be defined as the recording and sensor area of receiving coil array  32  on first sensor array  54  and/or in combination with second sensor array  56  and/or third sensor array  58 . As illustrated, aperture  60  may enclose, thus sense and record, induced eddy current  62 . As inspection tool  4  continues to move to a second point in time, induced eddy current  62  may have degraded to second induced eddy current  63 . Additionally, aperture  60  may have moved up with inspection tool  4  as illustrated by second aperture  61 . Thus, the integration of induced eddy current  62  and aperture  60  may remain in the same area as the integration of second induced eddy current  63  and second aperture  61 . This may improve the signal to noise ratio recorded by sensory arrays  26 , which may prevent the loss and/or skewing of data. 
         [0049]    Dynamic configuration  50 , as illustrated in  FIGS. 6 a  and 6 b   , may configure sensor array  26  to compensate for motion noise. During operation, inspection tool  4  may not move uniformly, aperture  60  may shake along with inspection tool  4 , where induced eddy current  62  may not move. Referring to  FIG. 6 a   , this may create motion noise, as aperture  60  may move up and down sporadically, preventing receiving coil array  32  from recording the entire signal produced by induced eddy current  62 , which is stationary. Dynamic configuration  50  may “flatten” and expand aperture  60 , as illustrated in  FIG. 6 b   . This may be accomplished by increasing the gain on first sensor array  56  and third sensor array  58 , which may taper and expand the aperture. Without limitation, induced eddy current  62  may be recorded in its entirety even as aperture  60  may move up and down sporadically. 
         [0050]    During operation, dynamic configuration  50  may further configure transmitter coil  34  during operation, which may control the resolution receiving coil array  32  may be able to record. As illustrated in  FIG. 7 , transmitter coil  34  may produce induced eddy current  62 , through an electric field, that may be smaller than target feature  64  to be able to detect target feature  64 . Thus, an induced eddy current  62  larger than target feature  64  may not have high enough resolution for receiving coil array  32  to record target feature  64 . Dynamic configuration  50  may be able to adjust the number of transmitter coils  34  used and the speed of inspection tool  4  to increase and/or decrease the resolution recorded by receiving coil array  32 . Without limitation, high resolution may be needed in harsh environments and older pipes in order to detect smaller target features  64 , in which dynamic configuration  50  may shrink the electric field emitted from transmitter coil  34  and reduce the speed of inspection device  4 . In areas near the surface with tubing  12  in a clean environment, a higher inspection tool  4  speed may be utilized by the operator, which may increase the size of the electric filed but reduce the resolution.  FIGS. 8 a -8 d    illustrate the electric fields produced by transmitter coils  34  and resolution produced by each one. Referring to  FIG. 8 a   , first sensor array  54 , second sensor array  56 , and a third sensor array  58  are emitting the same electric field with the same amount gain for each transmitter coil.  FIG. 8 d    illustrates that if first sensor array  54 , second sensor array  56 , and third sensor array  58  have the same gain, aperture  60  may be flattened and widened, which may produce low resolution. Referring to  FIG. 8 b   , second sensor array  56  may produce a strong electric field due to an increase in gain in comparison to first sensor array  54  and third sensor array  58 .  FIG. 8 d    illustrates that if second sensor array  56  has an increased gain, aperture  60  produced may be thinner and longer than that produced by the arrangement in  FIG. 8 a   . Referring to  FIG. 8 c   , second sensor array  56  has a gain that has increased many times more than first sensor array  54  and third sensor array  58 , which may produce a high resolution aperture as illustrated in  FIG. 8 d   . The high resolution aperture may be longer and thinner than the previous apertures produced by  FIGS. 8 a    and  8   b.    
         [0051]    Without limitation, aperture  60  produced by transmitter coils  34  may be narrowed and increased in length using phase control, as illustrated in  FIG. 9 . In examples, aperture  60  transmitted by transmitter coil  34  may be limited by sensor size. By controlling current course of two transmitter coils  34  in one hundred eighty degree phase shifts, the flux of the electric fields may be focused between the two transmitter coils  34 , which may increase and narrow aperture  60 . This may help in detecting smaller target features  64  in tubing  12 . 
         [0052]    The preceding description provides various embodiments of the systems and methods of use disclosed herein which may contain different method steps and alternative combinations of components. It should be understood that, although individual embodiments may be discussed herein, the present disclosure covers all combinations of the disclosed embodiments, including, without limitation, the different component combinations, method step combinations, and properties of the system. It should be understood that the compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components and steps. Moreover, the indefinite articles “a” or “an,” as used in the claims, are defined herein to mean one or more than one of the element that it introduces. 
         [0053]    For the sake of brevity, only certain ranges are explicitly disclosed herein. However, ranges from any lower limit may be combined with any upper limit to recite a range not explicitly recited, as well as, ranges from any lower limit may be combined with any other lower limit to recite a range not explicitly recited, in the same way, ranges from any upper limit may be combined with any other upper limit to recite a range not explicitly recited. Additionally, whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range are specifically disclosed. In particular, every range of values (of the form, “from about a to about b,” or, equivalently, “from approximately a to b,” or, equivalently, “from approximately a-b”) disclosed herein is to be understood to set forth every number and range encompassed within the broader range of values even if not explicitly recited. Thus, every point or individual value may serve as its own lower or upper limit combined with any other point or individual value or any other lower or upper limit, to recite a range not explicitly recited. 
         [0054]    Therefore, the present embodiments are well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, and may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. Although individual embodiments are discussed, the disclosure covers all combinations of all of the embodiments. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the patentee. It is therefore evident that the particular illustrative embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of those embodiments. If there is any conflict in the usages of a word or term in this specification and one or more patent(s) or other documents that may be incorporated herein by reference, the definitions that are consistent with this specification should be adopted Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions alterations may be made herein without departing from the spirit and scope of the invention as defined by the appended claims.