Multi-angle packer setting test device

Abstract

The embodiment of the invention provides a multi-angle packer setting test device, and belongs to the technical field of underground sealing test devices. The multi-angle packer setting test device comprises a well bore simulation system, a setting system and an adjusting system, the well bore simulation system comprises a test sleeve, and the test sleeve comprises a first pipe section and a second pipe section which are communicated with each other; the adjusting system comprises a vertical frame, a first adjusting mechanism and a second adjusting mechanism, the setting system is connected to the vertical frame, the first adjusting mechanism is connected with the first pipe section and used for driving the first pipe section to swing relative to the second pipe section, and the second adjusting mechanism is connected with the second pipe section and used for driving the second pipe section to swing relative to the first pipe section. According to the embodiment of the invention, the shape and direction of the test pipeline in the well bore simulation system are adjusted through the adjusting system, so that the test pipeline can simulate various different well structures, and setting of the different well structures can be simulated through setting of the setting system in the test sleeve.

Description

Technical Field

[0001] The present application relates to downhole sealing test device technology, and in particular to a multi-angle packer setting test device. Background Art

[0002] The packer is mainly used to seal the annulus between oil casing and casing, and is widely used in engineering applications such as drilling, completion, and cementing. It can be used for production, water (gas) injection, interlayer isolation and other operations.

[0003] There are many existing wellbore structures, including vertical wells, angled wells, and azimuth wells. The packers in different wellbore structures may cause different dynamic behaviors to the packers.

[0004] The packer setting test device is a device used to test the dynamic behavior of the packer in the wellbore. At present, different test devices need to be used for different wellbore structures, which makes it inconvenient for operators to operate the test devices. Summary of the invention

[0005] The present application provides a multi-angle packer setting test device, which is used to solve the problem of inconvenient operation of the existing packer setting test device.

[0006] The present application provides a multi-angle packer setting test device, including: a wellbore simulation system, a setting system and an adjustment system, the wellbore simulation system includes a test casing, the test casing includes a first pipe segment and a second pipe segment that are connected; the setting system is used to set in the test casing; the adjustment system includes a stand, a first adjustment mechanism and a second adjustment mechanism, the setting system is connected to the stand, the first adjustment mechanism is connected to the first pipe segment, the first adjustment mechanism is used to drive the first pipe segment to swing relative to the second pipe segment, the second adjustment mechanism is connected to the second pipe segment, and the second adjustment mechanism is used to drive the second pipe segment to swing relative to the first pipe segment.

[0007] Optionally, the first adjustment mechanism includes a first telescopic member and a first clamping ring, the first telescopic member is mounted on the stand, the telescopic end of the first telescopic member is fixedly connected to the first clamping ring, the first clamping ring is sleeved and connected to the outside of the first pipe section, and the telescopic direction of the first telescopic member intersects with the axis of the first pipe section.

[0008] Optionally, the second adjustment mechanism includes a second telescopic member and a second clamping ring, the telescopic end of the second telescopic member is connected to the second clamping ring, the second clamping ring is sleeved and connected to the outside of the second pipe section, and the telescopic direction of the second telescopic member intersects with the axis of the second pipe section.

[0009] Optionally, the multi-angle packer sealing test device also includes a power loading system, which is installed on the stand, and the output end of the power loading system is connected to the sealing system. Before the sealing system is sealed, the power loading system is used to drive the sealing system to move in the test casing, and after the sealing system is sealed, the power loading system is used to provide an axial dynamic load to the sealing system.

[0010] Optionally, the power loading system includes a first rotator, a screw-nut pair and a mounting platform, the screw in the screw-nut pair is vertically arranged on the stand, the output shaft of the first rotator is fixedly connected to the screw in the screw-nut pair, the mounting platform is fixedly connected to the nut in the screw-nut pair, and the mounting platform is slidably connected to the stand, the sealing system is installed on the mounting platform, and the mounting platform constitutes the output end of the power loading system.

[0011] Optionally, the multi-angle packer setting test device further includes a torque loading system, wherein the torque loading system is connected between the output end of the power loading system and the setting system, and the torque loading system is used to provide torque to the setting system.

[0012] Optionally, the torque loading system includes a second rotator, a coupling and a torque sensor, the second rotator is fixed to the output end of the power loading system, the output shaft of the second rotator is fixedly connected to one end of the coupling, and the two ends of the torque sensor are respectively fixedly connected to the sealing system and the other end of the coupling.

[0013] Optionally, the sealing system includes a center pipe, a packer and a power pump, both ends of the center pipe are closed, the side wall of the first end of the center pipe is provided with an oil inlet and an oil outlet, the power pump is connected with the oil inlet through a pipeline, the packer is fixed to the outside of the second end of the center pipe, the first pipe section of the test casing is provided with a first seal at one end away from the second pipe section of the test casing, the center pipe is inserted into the first seal, the first seal, the test casing, the center pipe and the packer jointly enclose a pressurized chamber, and the oil outlet is connected with the pressurized chamber.

[0014] Optionally, the isolation device includes a sliding sleeve, an upper cava assembly, a sealing assembly and a lower cava assembly which are connected in sequence along the direction from the first end to the second end of the center pipe, the sliding sleeve is sealingly and slidingly connected to the outer wall of the center pipe and the inner wall of the test casing, and the lower cava assembly is fixed to the outside of the second end of the center pipe.

[0015] Optionally, the sealing assembly includes multiple elastic rubber cylinders, multiple spacer rings and two wrist guards, the two wrist guards are respectively fixedly connected to the cone of the upper cava assembly and the cone of the lower cava assembly, the spacer rings are arranged between any two adjacent elastic rubber cylinders, and the elastic rubber cylinders at both ends are respectively connected to the two wrist guards.

[0016] The multi-angle packer setting test device provided by the present application is provided with an adjustment system, and the first adjustment mechanism in the adjustment system is connected to the first pipe section, and the second adjustment mechanism in the adjustment system is connected to the second pipe section, so that the first pipe section is driven to swing relative to the second pipe section by the first adjustment mechanism, so that the first pipe section can be adjusted to a vertical state or an inclined state. When the first pipe section is in a vertical state, the first pipe section can simulate a straight well structure, and when the first pipe section is in an inclined state, the first pipe section can simulate an angled well structure. The second adjustment mechanism drives the second pipe section to swing relative to the first pipe section, so as to adjust the angle between the first pipe section and the second pipe section. When the angle between the first pipe section and the second pipe section is not zero, the test casing can simulate an azimuth well structure. The setting system is set in the test casing in different states, so that the setting of different well structures can be simulated. The operator can selectively adjust the well structure simulated by the test pipe section according to the required test, so that the operator can operate more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a multi-angle packer setting test device provided in one embodiment of the present application;

[0019] Figure 2 for Figure 1 Schematic diagram of the planar structure;

[0020] Figure 3 for Figure 1 Schematic diagram of the installation structure of the power loading system and the torque loading system on the stand;

[0021] Figure 4 for Figure 1 Schematic diagram of the connection structure between the middle packer and the central pipe;

[0022] Figure 5 for Figure 4 A partial enlarged view of the connection between the middle packer and the central pipe.

[0023] Reference numerals:

[0024] 10-wellbore simulation system; 20-setting system; 30-regulation system;

[0025] 100-test casing; 110-first pipe section; 120-second pipe section; 130-third pipe section; 140-first sealing member; 150-second sealing member;

[0026] 200-center tube; 201-oil inlet; 202-oil outlet; 210-first cover; 220-second cover;

[0027] 300-packer; 310-sliding sleeve; 320-upper slip assembly; 321-first casing; 322-first slip; 323-first cone; 324-first shear pin; 330-sealing assembly; 331-elastic rubber tube; 332-spacer ring; 333-wrist guard; 340-lower slip assembly; 341-second casing; 342-second slip; 343-second cone; 344-second shear pin;

[0028] 400-boosting pump; 410-pipeline;

[0029] 500-stand; 510-support rod; 520-first connecting member; 530-second connecting member;

[0030] 600-first adjustment mechanism; 610-first clamping ring; 620-first telescopic member;

[0031] 700 - second adjustment mechanism; 710 - second clamping ring; 720 - second telescopic member;

[0032] 800-power loading system; 810-first rotator; 820-screw nut pair; 821-screw; 822-nut; 830-mounting platform; 840-transmission assembly;

[0033] 900 - torque loading system; 910 - second rotator; 920 - coupling; 930 - torque sensor.

[0034] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein.

[0037] In the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0038] In the related art, there are many existing wellbore structures, including vertical wells, angled wells, and azimuth wells, etc. The packers in different wellbore structures may cause different dynamic behaviors to the packers.

[0039] The multi-angle packer setting test device is a device used to test the dynamic behavior of the packer in the wellbore. At present, different test devices are needed for different wellbore structures, and different test devices may be set in different test sites, which requires operators to go to different test sites to carry out corresponding test devices, making it inconvenient for operators to operate the test devices.

[0040] In view of this, the multi-angle packer setting test device provided by the present application is provided with an adjustment system, and the first adjustment mechanism in the adjustment system is connected to the first pipe section, and the second adjustment mechanism in the adjustment system is connected to the second pipe section, so that the first pipe section is driven to swing relative to the second pipe section by the first adjustment mechanism, so that the first pipe section can be adjusted to a vertical state or an inclined state. When the first pipe section is in a vertical state, the first pipe section can simulate a straight well structure. When the first pipe section is in an inclined state, the first pipe section can simulate an angled well structure. The second adjustment mechanism drives the second pipe section to swing relative to the first pipe section, so as to adjust the angle between the first pipe section and the second pipe section. When the angle between the first pipe section and the second pipe section is not zero, the test casing can simulate an azimuth well structure. The setting system is set in the test casing in different states, so that the test of different well structures can be realized. The operator can selectively adjust the well structure simulated by the test pipe section according to the required test, so that the operator can operate more conveniently.

[0041] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0042] like Figures 1 to 5 As shown, the multi-angle packer setting test device provided in the present application includes a wellbore simulation system 10, a setting system 20 and an adjustment system 30. The wellbore simulation system 10 includes a test casing 100, and the test casing 100 includes a first pipe segment 110 and a second pipe segment 120 that are connected. The setting system 20 is used to set in the test casing 100; the adjustment system 30 includes a stand 500, a first adjustment mechanism 600 and a second adjustment mechanism 700. The setting system 20 is connected to the stand 500, the first adjustment mechanism 600 is connected to the first pipe segment 110, and the first adjustment mechanism 600 is used to drive the first pipe segment 110 to swing relative to the second pipe segment 120, and the second adjustment mechanism 700 is connected to the second pipe segment 120, and the second adjustment mechanism 700 is used to drive the second pipe segment 120 to swing relative to the first pipe segment 110.

[0043] It can be understood that the test casing 100 in the wellbore simulation system 10 is used to simulate the wellbore structure, and the end of the first pipe section 110 away from the second pipe section 120 is an open end, and the open end is used to simulate the wellbore entrance. The adjustment system 30 is used to adjust the shape and direction of the test casing 100 so that the test casing 100 can simulate different wellbore structures, and the setting system 20 is used to enter the test casing 100 through the open end and can be set at different positions of the test casing 100 to simulate the setting conditions of different wellbore structures, so that the operator can obtain the dynamic performance of the packer 300 in the setting system 20 in different wellbore structures through the multi-angle packer setting test device.

[0044] like Figure 1 and Figure 2As shown, optionally, the test casing 100 is divided into a first pipe section 110 and a second pipe section 120, and the first adjustment mechanism 600 in the adjustment system 30 drives the first pipe section 110 to swing relative to the second pipe section 120, so that the first pipe section 110 can be adjusted to a vertical state or an inclined state. When the first pipe section 110 is in a vertical state, the first pipe section 110 can simulate a vertical well structure. When the first pipe section 110 is in an inclined state, the first pipe section 110 can simulate an angled well structure. The second adjustment mechanism 700 drives the second pipe section 120 to swing relative to the first pipe section 110, thereby adjusting the angle between the first pipe section 110 and the second pipe section 120. When the angle between the first pipe section 110 and the second pipe section 120 is not zero, the test casing 100 can simulate an azimuth well structure. The sealing system 20 is set at different positions in the test casing 100 in different states, so that the test of different well structures can be realized. The operator can selectively adjust the well structure simulated by the test pipe section according to the required test, making the operation more convenient for the operator. Optionally, when the setting position of the sealing system 20 is located in the first pipe section 110, the setting test of the well of the right-angle structure or the well of the oblique angle structure can be carried out, and when the setting position of the sealing system 20 is located in the second pipe section 120, the setting test of the well of the azimuth well structure can be carried out.

[0045] It should be noted that after the sealing system 20 is sealed in the test casing 100, the sealing system 20 is relatively fixed to the test casing 100. The end of the second pipe section 120 away from the first pipe section 110 is a plugging end, which can be sealed and connected to the end of the second pipe section 120 away from the first pipe section 110 by a detachable second sealing member 150 to achieve plugging. The first pipe section 110 and the second pipe section 120 are both straight pipe sections. When the first pipe section 110 and the second pipe section 120 are not parallel (that is, there is an angle between the first pipe section 110 and the second pipe section 120), a circular arc third pipe section 130 is formed between the first pipe section 110 and the second pipe section 120. The third pipe section 130 realizes the circular arc transition between the first pipe section 110 and the second pipe section 120, so that the sealing system 20 can move smoothly between the first pipe section 110 and the second pipe section 120. When the first pipe segment 110 and the second pipe segment 120 are parallel (i.e., the angle between the first pipe segment 110 and the second pipe segment 120 is zero), the first pipe segment 110 and the second pipe segment 120 form a long straight pipe, and there is no third pipe segment 130 between the first pipe segment 110 and the second pipe segment 120. The third pipe segment 130 can be formed by the first pipe segment 110 and the second pipe segment 120 swinging relative to each other.

[0046] The second adjustment mechanism 700 can be installed on the stand 500 or on the ground, which is not specifically limited in the present disclosure. Optionally, the second adjustment mechanism 700 is installed on the ground to shorten the distance between the second adjustment mechanism 700 and the second pipe section 120.

[0047] like Figure 2 As shown, in order to enable the sealing system 20 to better enter the second pipe segment 120 from the first pipe segment 110, in some optional third embodiments, a third pipe segment 130 is connected between the first pipe segment 110 and the second pipe segment 120, and the third pipe segment 130 is an arc pipe segment.

[0048] It should be noted that the first pipe segment 110 and the second pipe segment 120 may be an integrally formed structure, and the third pipe segment 130 may be formed by bending the first pipe segment 110 and the second pipe segment 120 .

[0049] like Figures 1 to 3 As shown, for the specific structure of the stand 500, in some optional embodiments, the stand 500 includes a plurality of support rods 510, a first connecting member 520 and a second connecting member 530, the first connecting member 520 is located below the second connecting member 530 and is spaced apart from the second connecting member 530, and a plurality of support rods 510 are connected between the first connecting member 520 and the second connecting member 530. The plurality of support rods 510 make the connection between the first connecting member 520 and the second connecting member 530 more stable.

[0050] The plurality of support rods 510 are vertically and spaced apart, the first connecting member 520 is fixedly connected to the plurality of support rods 510 , the second connecting member 530 is fixedly connected to at least some of the support rods 510 , and the first supporting member and the second supporting member are spaced apart.

[0051] like Figure 1 and Figure 2 As shown, for the first adjustment mechanism 600, in some optional embodiments, the first adjustment mechanism 600 includes a first telescopic member 620 and a first clamping ring 610, the first telescopic member 620 is installed on the stand 500, the telescopic end of the first telescopic member 620 is fixedly connected to the first clamping ring 610, the first clamping ring 610 is sleeved and connected to the outside of the first pipe section 110, and the telescopic direction of the first telescopic member 620 intersects with the axis of the first pipe section 110.

[0052] The first adjustment mechanism 600 is installed on the stand 500 so that the first adjustment mechanism 600 can be located on one side of the first pipe section 110. By controlling the telescopic end of the first telescopic member 620 to extend to different lengths, the first pipe section 110 of the test casing 100 can be placed in different positions through the first clamping ring 610, so that the first pipe section 110 has different angles with the vertical plane, thereby enabling the first pipe section 110 to simulate a vertical well structure or an inclined well structure.

[0053] It should be noted that the first telescopic member 620 can be a component with automatic telescopic function, such as a telescopic oil cylinder, an electric push rod, etc.; the first telescopic member 620 can also be a component with manually controlled telescopic position, such as a sliding sleeve 310 and a sliding rod, a plurality of through holes are set in the axial direction of the sliding sleeve 310, and a locking hole is set on the sliding rod, and the length of the sliding rod extending out of the sliding sleeve 310 is controlled by inserting pins from different through holes into the locking holes so that the pins connect the locking holes and different through holes. In addition, the first clamping ring 610 and the first pipe section 110 can be set to slide relative to each other, so that the position of the first pipe section 110 can be synchronously adjusted by controlling the extension length of the first telescopic member 620.

[0054] like Figure 1 and Figure 2 As shown, for the second adjustment mechanism 700, in some optional embodiments, the second adjustment mechanism 700 includes a second telescopic member 720 and a second clamping ring 710, the telescopic end of the second telescopic member 720 is connected to the second clamping ring 710, the second clamping ring 710 is sleeved and connected to the outside of the second pipe segment 120, and the telescopic direction of the second telescopic member 720 intersects with the axis of the second pipe segment 120.

[0055] By controlling the telescopic end of the second telescopic member 720 to extend to different lengths, the first pipe section 110 of the test casing 100 can be placed in different positions through the second clamping ring 710, so that the second pipe section 120 has different angles with the horizontal plane, so that the second pipe section 120 and the first pipe section 110 can jointly simulate an azimuth well structure.

[0056] The second telescopic member 720 may be a component with an automatic telescopic function, or a component whose telescopic position is manually controlled, and the present disclosure does not make any specific limitation on this. The fixed end of the second telescopic member 720 may be set on the ground.

[0057] like Figures 1 to 3As shown, in order to simulate the dynamic behavior of the sealing system 20 when it is subjected to vibration after being sealed in the wellbore, the multi-angle packer sealing test device also includes a power loading system 800. The power loading system 800 is installed on the stand 500. The output end of the power loading system 800 is connected to the sealing system 20. Before the sealing system 20 is sealed, the power loading system 800 is used to drive the sealing system 20 to move in the test casing 100. After the sealing system 20 is sealed, the power loading system 800 is used to provide an axial dynamic load to the sealing system 20.

[0058] By providing the power loading system 800 to apply a dynamic load to the setting system 20 , after the setting system 20 is set, a situation in which the setting system 20 is subjected to vibration can be simulated.

[0059] It can be understood that before the setting system 20 is set, the dynamic load applied to the setting system 20 by the power loading system 800 can drive the setting system 20 to move in the test casing 100, thereby adjusting the position of the setting system 20 in the test casing, thereby achieving the purpose of adjusting the setting position of the setting system 20 in the test casing 100.

[0060] like Figures 1 to 3 As shown, optionally, the power loading system 800 includes a first rotator 810, a screw nut pair 820 and a mounting platform 830, the screw 821 in the screw nut pair 820 is vertically arranged on the frame 500, the output shaft of the first rotator 810 is fixedly connected to the screw 821 in the screw nut pair 820, the mounting platform 830 is fixedly connected to the nut 822 in the screw nut pair 820, and the mounting platform 830 is slidably connected to the frame 500, the sealing system 20 is installed on the mounting platform 830, and the mounting platform 830 constitutes the output end of the power loading system 800.

[0061] The mounting platform 830 is slidably connected to the stand 500, which can prevent the mounting platform 830 from rotating. The first rotator 810 drives the lead screw 821 to rotate, so that the nut 822 connected to the lead screw 821 can move along the axial direction of the lead screw 821, thereby driving the mounting platform 830 to move along the circumferential direction of the lead screw 821, and then the mounting platform 830 is moved close to or away from the open end of the test pipe 410, so that the mounting platform 830 constitutes the output end of the power loading system 800.

[0062] It should be noted that the first rotator 810 can be a motor or a manual rotation mechanism, and this application does not make any specific limitation on this.

[0063] like Figures 1 to 3As shown, for the sliding connection between the mounting platform 830 and the stand 500, in some optional embodiments, the mounting platform 830 is provided with a plurality of through holes, each of which corresponds to a support rod 510 in the stand 500, and at least part of the support rods 510 in the stand 500 are inserted into the corresponding through holes, so that the mounting platform 830 can slide relative to the support rods 510. Of course, in other embodiments, the mounting platform 830 can be slidably connected to the stand 500 by providing a slide groove on the stand 500 and sliding the mounting platform 830 in the slide groove.

[0064] In some optional embodiments, there are multiple groups of screw nut pairs 820, the screws 821 in the multiple groups of screw nut pairs 820 are arranged in parallel, the nuts 822 in the multiple groups of screw nut pairs 820 are all fixedly connected to the mounting platform 830, and the first rotator 810 is simultaneously connected to the screws 821 in the multiple groups of screw nut pairs 820 through the transmission assembly 840.

[0065] By providing multiple sets of lead screw nut pairs 820, it is possible to form multi-point support for the installation platform 830, making the installation platform 830 more stable.

[0066] Optionally, the transmission assembly 840 may be a belt transmission assembly or a chain transmission assembly, which is not specifically limited in the present application.

[0067] like Figures 1 to 3 As shown, in order to simulate the dynamic behavior of the sealing system 20 when it is subjected to torque after being sealed in the wellbore, in some optional embodiments, the multi-angle sealer sealing test device also includes a torque loading system 900, and the torque loading system 900 is connected between the output end of the power loading system 800 and the sealing system 20, and the torque loading system 900 is used to provide torque to the sealing system 20.

[0068] It can be understood that the torque loading system 900 is connected between the output end of the power loading system 800 and the sealing system 20, so that the torque loading system 900 can move synchronously with the output end of the power loading system 800, and the torque provided by the torque loading system 900 to the sealing system 20 is the force that drives the torque loading system 900 to rotate relative to the test casing 100.

[0069] like Figures 1 to 3 As shown, optionally, the torque loading system 900 includes a second rotator 910, a coupling 920 and a torque sensor 930. The second rotator 910 is fixed to the output end of the power loading system 800, the output shaft of the second rotator 910 is fixedly connected to one end of the coupling 920, and the two ends of the torque sensor 930 are respectively fixedly connected to the sealing system 20 and the other end of the coupling 920.

[0070] The output end of the second rotator 910 rotates, driving the coupling 920 to rotate, the coupling 920 drives the torque sensor 930 to rotate, and the torque sensor 930 drives the setting system 20 to rotate. In addition, when the torsion sensor rotates, the corresponding torque value can also be obtained for reference by the operator.

[0071] It should be noted that the second rotator 910 can be a motor or a manual rotation mechanism, and this application does not make any specific limitation on this.

[0072] Optionally, the second motor may be mounted on the first connecting member 520. Of course, in other embodiments, the second motor may also be disposed on the ground.

[0073] like Figure 4 and Figure 5 As shown, for the specific structure of the above-mentioned sealing system 20, in some optional embodiments, the sealing system 20 includes a center pipe 200, a packer 300 and a power pump, both ends of the center pipe 200 are closed, and the side wall of the first end of the center pipe 200 is provided with an oil inlet 201 and an oil outlet 202, the power pump is connected to the oil inlet 201 through a pipeline 410, the packer 300 is fixed on the second end of the center pipe 200, and the first pipe section 110 of the test casing 100 is provided with a first seal 140 at one end away from the second pipe section 120 of the test casing 100, the center pipe 200 is penetrated in the first seal 140, the first seal 140, the test casing 100, the center pipe 200 and the packer 300 jointly enclose a pressurized chamber, and the oil outlet 202 is connected to the pressurized chamber.

[0074] It can be understood that the first seal 140 has a through hole at its center, the center pipe 200 is inserted into the through hole, and is slidably sealed and connected to the first seal 140. The center pipe 200 has a certain flexibility, and when the center pipe 200 is inserted into the test pipe, it can drive the packer 300 to reach the first pipe section 110 or the second pipe section 120. The packer 300 is a main component for realizing the setting function in the setting system 20. By adjusting the depth of the center pipe 200 inserted into the test casing 100, the setting position of the packer 300 in the test casing 100 can be adjusted.

[0075] The pressure pump 400 is used to transport high-pressure, high-heat liquid to the oil inlet 201 through the pipeline 410. The liquid enters the center tube 200 from the oil inlet 201. Since both ends of the center tube 200 are closed, the liquid can only flow out from the oil outlet 202 and enter the pressure chamber, causing the pressure chamber to be pressurized and act on the packer 300, so that the packer 300 can achieve the sealing action.

[0076] It is understandable that the oil inlet 201 is located outside the test casing 100 to facilitate connection with the pipeline 410 and connection between the loading system 40 and the setting system. Optionally, the loading system 40 is connected to one end of the central pipe 200.

[0077] like Figure 4 As shown, in some optional embodiments, both ends of the central tube 200 can be closed by a first cover 210 and a second cover 220 respectively. The second cover 220 is located at one end of the central tube 200 connected to the loading system 40.

[0078] like Figure 4 and Figure 5 As shown, for the specific structure of the packer 300, in some optional embodiments, the packer 300 includes a sleeve 310, an upper cava assembly 320, a sealing assembly 330 and a lower cava assembly 340 which are sequentially connected along the direction from the first end to the second end of the central pipe 200, the sleeve 310 is sealingly and slidingly connected to the outer wall of the central pipe 200 and the inner wall of the test casing 100, and the lower cava assembly 340 is fixed to the outside of the second end of the central pipe 200.

[0079] It can be understood that the sleeve 310, the first sealing member 140, the test sleeve 100 and the center pipe 200 together enclose a pressurized chamber. During the process of holding the pressure in the pressurized chamber, the pressure generated in the pressurized chamber will act on the sleeve 310 and push the sleeve 310 to move. This drives the lower slip assembly 340 to first abut against and fix with the test sleeve 100, and then the sealing assembly 330 is deformed under pressure and annularly sealed between the center pipe 200 and the test pipe 410, and finally the upper slip assembly 320 abuts against and fixes with the test sleeve 100, so that the sealing assembly 330 maintains the seal between the center pipe 200 and the test sleeve 100, completing the setting of the setting system 20.

[0080] By providing the upper slip assembly 320 and the lower slip assembly 340, two fixations can be formed, and the upper slip assembly 320 and the lower slip assembly 340 are respectively located on both sides of the sealing assembly 330, thereby increasing the stability of the sealing system 20 after sealing.

[0081] like Figure 4 and Figure 5As shown, for the specific structure of the upper cava assembly 320 and the lower cava assembly 340, the upper cava assembly 320 includes a first sleeve 321, a first cava 322 and a first cone 323, one end of the first sleeve 321 is fixedly connected to one end of the first sleeve 321, the other end of the first sleeve 321 is sleeved outside one end of the first cone 323, and the first sleeve 321 can slide relative to the first cone 323, one end of the first cava 322 is installed on the first sleeve 321, the other end of the first cava 322 is located on the conical part of the cone, a first shear pin 324 is arranged between the first cava 322 and the first cone 323, and the first cone 323 is connected to one end of the sealing assembly 330. The lower cava assembly 340 includes a second sleeve 341, a second cava 342 and a second cone 343. The second cone 343 is connected to the other end of the sealing assembly 330. One end of the second claw is arranged on the conical portion of the second cone 343. The other end of the second claw is connected to the second sleeve 341. One end of the second sleeve 341 is sleeved outside the second cone 343, and the second sleeve 341 can slide relative to the second cone 343. A second shear pin 344 is arranged between the second claw and the second cone 343. The second sleeve 341 abuts against the first cover 210, and the shear force of the first shear pin 324 is greater than the shear force of the second shear pin 344.

[0082] When the sleeve 310 slides under the pressure of the pressurized chamber, the thrust received by the sleeve 310 can act on the first slip 322 and the second slip 342. Since the shear force of the first shear pin 324 is greater than the shear force of the second shear pin 344, the second shear pin 344 will first break with the first shear pin 324, so that the second slip 342 can move toward the conical surface of the second cone 343 with an increased diameter, and then the second slip 342 is opened by the conical surface and abuts against the inner wall of the test casing 100. Then, under the continuous thrust of the sleeve 310, the sealing assembly 330 is pressed and changed to form an annular seal between the central pipe 200 and the test casing 100, and then the first shear pin 324 breaks, so that the first slip 322 can move toward the conical surface of the first cone 323 with an increased diameter, and then the first slip 322 is abutted against the inner wall of the test casing.

[0083] like Figure 4 and Figure 5 As shown, in order to improve the sealing effect of the sealing system 20 after sealing, in some optional embodiments, the sealing assembly 330 includes a plurality of elastic rubber cylinders 331, a plurality of spacer rings 332 and two wrist guards 333, the two wrist guards 333 are respectively fixedly connected to the cone of the upper cava assembly 320 and the cone of the lower cava assembly 340, a spacer ring 332 is provided between any two adjacent elastic rubber cylinders 331, and the elastic rubber cylinders 331 at both ends are respectively connected to the two wrist guards 333.

[0084] It can be understood that the two wrist guards 333 are located at both ends of the sealing assembly 330, and the elastic rubber tube 331 and the spacer ring 332 are alternately arranged between the two wrist guards 333. When the sealing assembly 330 receives thrust, the elastic rubber tube 331 will undergo elastic deformation and abut against the inner wall of the test sleeve 100, thereby achieving sealing of the test sleeve 100. Multiple elastic rubber tubes 331 can achieve abutment at multiple locations, thereby achieving multiple sealings, and improving the sealing effect of the setting system 20 after setting.

[0085] After the packer sealing test is completed, stop injecting liquid, wait for the liquid inside the casing 100 and the center pipe 200 to cool down, open the second seal 150 to release the liquid inside the pipe, so that the pressure inside the pipe is reset to zero. At this time, open the power loading system 800, and the installation platform 830 moves up and down, so that the first slip 322 and the second slip 342 are loosened from the test casing 100, and then the center pipe 200 is driven to move upward by the installation platform 830. Driven by the first cover 210, the entire packer 300 installed on the center pipe 200 follows the center pipe 200 and moves toward the open end of the first pipe section 110. After that, after the first seal 140, the first adjustment mechanism 600 and the second adjustment mechanism 700 are separated from the test casing to release the constraint on the test casing 100, the test casing 100 is removed, and the packer 300 is released and the test casing 100 is disassembled.

[0086] Of course, in other embodiments, when the first adjustment mechanism 600 has a sufficiently long adjustment distance, the center pipe 200 can be directly driven from the open end of the first pipe section 110 to leave the test casing 100 through the installation platform 830 while maintaining the connection between the first seal 140 and the first adjustment mechanism 600 and the second adjustment mechanism 700 and the test casing 100, thereby completing the separation of the packer 300 and the test casing 100.

[0087] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0088] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A multi-angle packer setting test device, characterized in that: include: A wellbore simulation system (10) comprises a test casing (100), wherein the test casing (100) comprises a first pipe section (110) and a second pipe section (120) which are connected to each other; A setting system (20), used for setting in the test casing (100); The adjustment system (30) comprises a stand (500), a first adjustment mechanism (600) and a second adjustment mechanism (700), wherein the sealing system (20) is connected to the stand (500), the first adjustment mechanism (600) is connected to the first pipe section (110), the first adjustment mechanism (600) is used to drive the first pipe section (110) to swing relative to the second pipe section (120), the second adjustment mechanism (700) is connected to the second pipe section (120), and the second adjustment mechanism (700) is used to drive the second pipe section (120) to swing relative to the first pipe section (110).

2. The multi-angle packer setting test device according to claim 1, characterized in that: The first adjustment mechanism (600) comprises a first telescopic member (620) and a first clamping ring (610); the first telescopic member (620) is mounted on the stand (500); the telescopic end of the first telescopic member (620) is fixedly connected to the first clamping ring (610); the first clamping ring (610) is sleeved and connected to the outside of the first pipe section (110); the telescopic direction of the first telescopic member (620) intersects with the axis of the first pipe section (110).

3. The multi-angle packer setting test device according to claim 1, characterized in that: The second adjustment mechanism (700) comprises a second telescopic member (720) and a second clamping ring (710); the telescopic end of the second telescopic member (720) is connected to the second clamping ring (710); the second clamping ring (710) is sleeved and connected to the outside of the second pipe section (120); and the telescopic direction of the second telescopic member (720) intersects with the axis of the second pipe section (120).

4. The multi-angle packer setting test device according to claim 1, characterized in that: The multi-angle packer setting test device also includes a power loading system (800), which is installed on the stand (500). The output end of the power loading system (800) is connected to the setting system (20). Before the setting system (20) is set, the power loading system (800) is used to drive the setting system (20) to move in the test casing (100). After the setting system (20) is set, the power loading system (800) is used to provide an axial dynamic load to the setting system (20).

5. The multi-angle packer setting test device according to claim 4, characterized in that: The power loading system (800) comprises a first rotator (810), a screw-nut pair (820) and a mounting platform (830), wherein the screw (821) in the screw-nut pair (820) is vertically arranged on the stand (500), the output shaft of the first rotator (810) is fixedly connected to the screw (821) in the screw-nut pair (820), the mounting platform (830) is fixedly connected to the nut (822) in the screw-nut pair (820), and the mounting platform (830) is slidably connected to the stand (500), the sealing system (20) is mounted on the mounting platform (830), and the mounting platform (830) constitutes the output end of the power loading system (800).

6. The multi-angle packer setting test device according to claim 4, characterized in that: The multi-angle packer setting test device also includes a torque loading system (900), which is connected between the output end of the power loading system (800) and the setting system (20), and the torque loading system (900) is used to provide torque to the setting system (20).

7. The multi-angle packer setting test device according to claim 6, characterized in that: The torque loading system (900) comprises a second rotator (910), a coupling (920) and a torque sensor (930); the second rotator (910) is fixed to the output end of the power loading system (800); the output shaft of the second rotator (910) is fixedly connected to one end of the coupling (920); and the two ends of the torque sensor (930) are respectively fixedly connected to the setting system (20) and the other end of the coupling (920).

8. The multi-angle packer setting test device according to any one of claims 1 to 7, characterized in that: The sealing system (20) comprises a center pipe (200), a packer (300) and a power pump. Both ends of the center pipe (200) are closed. The side wall of the first end of the center pipe (200) is provided with an oil inlet (201) and an oil outlet (202). The power pump is connected to the oil inlet (201) through a pipeline (410). The packer (300) is fixedly mounted on the second end of the center pipe (200). A first sealing member (140) is provided at one end of the first pipe section (110) of the test casing (100) away from the second pipe section (120) of the test casing (100). The center pipe (200) is inserted into the first sealing member (140). The first sealing member (140), the test casing (100), the center pipe (200) and the packer (300) jointly enclose a pressurizing chamber. The oil outlet (202) is connected to the pressurizing chamber.

9. The multi-angle packer setting test device according to claim 8, characterized in that: The packer (300) comprises a sliding sleeve (310), an upper slip assembly (320), a sealing assembly (330) and a lower slip assembly (340) which are sequentially connected along the direction from the first end to the second end of the central pipe (200); the sliding sleeve (310) is sealingly and slidingly connected to the outer wall of the central pipe (200) and the inner wall of the test casing (100); and the lower slip assembly (340) is fixed to the outside of the second end of the central pipe (200).

10. The multi-angle packer setting test device according to claim 9, characterized in that: The sealing assembly (330) comprises a plurality of elastic rubber cylinders (331), a plurality of spacer rings (332) and two wrist guards (333); the two wrist guards (333) are respectively fixedly connected to the cone of the upper cava assembly (320) and the cone of the lower cava assembly (340); the spacer ring (332) is provided between any two adjacent elastic rubber cylinders (331); and the elastic rubber cylinders (331) at both ends are respectively connected to the two wrist guards (333).

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