CN210775053U - Reducing expansion cone testing device - Google Patents
Reducing expansion cone testing device Download PDFInfo
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- CN210775053U CN210775053U CN201921225777.2U CN201921225777U CN210775053U CN 210775053 U CN210775053 U CN 210775053U CN 201921225777 U CN201921225777 U CN 201921225777U CN 210775053 U CN210775053 U CN 210775053U
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- expansion cone
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Abstract
The utility model discloses a reducing expansion cone test device, it includes workstation, data processor, left fixing support, right fixing support, left sliding support and right sliding support, and reducing expansion cone sets up in the radial expansion section, and data processor is connected with radial expansion stress displacement sensor, axial expansion stress displacement sensor, radial expansion pulling force displacement sensor and axial expansion pulling force displacement sensor electricity. The utility model has the advantages that: the method can simulate the actual working condition of the variable-diameter expansion cone to test the working performance of the expansion cone, shorten the development and development period of the variable-diameter expansion cone, guide the improvement and optimization of the variable-diameter expansion cone, and provide reliable parameters for the service performance evaluation of the expansion pipe.
Description
Technical Field
The utility model relates to an expansion pipe technical field, especially a reducing expansion cone test device.
Background
The expansion pipe technique is an oil drilling technique in which an oil casing to be expanded is lowered to a design position in an oil well, and a mechanical force is applied to the casing by an expansion tool to cause permanent plastic deformation, thereby expanding the inner diameter or the outer diameter of the casing to a designed size. The expansion pipe technology is mainly applied to the aspects of well body structure optimization, well leakage layer packing, casing pipe patching and the like, and is considered to be one of core technologies in the oil drilling and production industry in the 21 st century.
The expansion cone is a core tool in the expansion pipe technology, and directly determines whether the expansion operation can be smoothly carried out and the expansion quality of the expansion pipe. The expansion cones used at present are classified into a solid expansion cone which cannot be changed in diameter and a variable-diameter expansion cone. The solid expansion cone is an integral structure with a fixed outer diameter, is easy to encounter the blockage risk, and cannot realize the aim of drilling with a single borehole diameter; therefore, the defect of the solid cone can be avoided, and the method has great development potential.
Much research work is made at home and abroad aiming at the research of the solid expansion cone, and little work is carried out on the working performance test of the expansion cone and the service performance test of the expansion pipe. In comparison, in the research and development process of the solid expansion cone, a relatively perfect test detection technology system is established by foreign companies, the reliability of the expansion pipe related products is guaranteed, and the expansion performance test of the expansion pipe in China is only limited to the tests of internal pressure bearing, sealing performance and the like, and has great limitation. And the development and test work of the variable-diameter expansion cone is less.
In order to simulate the actual working condition of the variable-diameter expansion cone in a laboratory to test the working performance of the expansion cone, shorten the development and development period of the variable-diameter expansion cone, guide the improvement and optimization of the variable-diameter expansion cone and provide reliable parameters for the service performance evaluation of the expansion pipe, the variable-diameter expansion cone test device is necessary to be developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, can simulate the operating performance of reducing expansion awl and test the working performance of expansion awl, shorten the development and development cycle of reducing expansion awl, guide the improvement and the optimization of reducing expansion awl, can provide the reducing expansion awl testing arrangement of reliable parameter to the performance evaluation of expansion pipe.
The purpose of the utility model is realized through the following technical scheme: a reducing expansion cone test device comprises a reducing expansion cone, wherein the reducing expansion cone comprises an expansion cone center pull rod, an upper claw disc, a lower claw disc, an upper expansion block and a lower expansion block, the device also comprises a workbench, a data processor, a reducing expansion cone, a left fixed support and a right fixed support which are arranged on the workbench, a left sliding support and a right sliding support which are arranged between a left fixed seat and a right fixed seat and can horizontally move along the workbench, a through hole is formed in the left sliding support, an expansion pipe which is arranged between the left fixed support and the right sliding support is arranged in the through hole, an elastic inner ring which is sleeved on the outer wall of the expansion pipe is arranged between the through hole and the expansion pipe, the expansion pipe is divided into a left pipe section and a right pipe section by the left sliding support, the left pipe section and the right pipe section are respectively an axial expansion section and a radial expansion section, and a plurality of radial expansion stress displacement sensors are distributed on, a plurality of axial expansion stress displacement sensors are distributed on the outer wall of the axial expansion section, a flange plate is welded at the right end part of the expansion pipe and fixed on the right sliding support, a sleeve which extends into the radial expansion section along the axial direction of the expansion pipe is fixedly arranged on the right end surface of the left fixed support, a connecting rod which is arranged along the axial direction of the sleeve is arranged in the sleeve, a radial expansion hydraulic cylinder is fixedly arranged on the left end surface of the left fixed support, a piston shaft of the radial expansion hydraulic cylinder extends into the sleeve, and a radial expansion tension displacement sensor is arranged between the right end part of the piston shaft and the left end part of the connecting rod; the reducing expansion cone is arranged in the radial expansion section and comprises an expansion cone central pull rod, an upper claw disc, a lower claw disc, an upper expansion block and a lower expansion block, the upper claw disc is fixedly arranged on the right end face of the sleeve, a central hole of the upper claw disc is communicated with the sleeve, the upper expansion block is fixedly arranged on the right end face of the upper claw disc, the lower claw disc is positioned on the right side of the upper claw disc, the lower expansion block is fixedly arranged on the left end face of the lower claw disc, the left end part of the expansion cone central pull rod penetrates through the central hole of the upper claw disc and is fixedly connected with the right end part of the connecting rod, and the right end part of the expansion cone central pull rod sequentially penetrates through the upper expansion block and the lower expansion block and is fixedly arranged on the lower; an axial expansion hydraulic cylinder is fixedly mounted on the right end face of the right fixed support, an axial expansion tension displacement sensor is arranged between a piston shaft of the axial expansion hydraulic cylinder and the right end portion of the right sliding support, and the data processor is electrically connected with the radial expansion stress displacement sensor, the axial expansion stress displacement sensor, the radial expansion tension displacement sensor and the axial expansion tension displacement sensor through signal wires.
And a horizontal sliding groove is formed in the top surface of the workbench between the left fixed support and the right fixed support.
And guide wheels are arranged at the bottoms of the left sliding support and the right sliding support and are supported on the bottom surface of the horizontal sliding groove.
All seted up logical groove on left side fixing support and the right fixing support's the terminal surface, the piston shaft of radial expansion pneumatic cylinder runs through left fixing support's logical groove setting, the piston shaft of axial expansion pneumatic cylinder runs through right fixing support's logical groove setting.
The radial expansion stress displacement sensors are uniformly distributed on the outer wall of the radial expansion section, and the axial expansion stress displacement sensors are uniformly distributed on the outer wall of the axial expansion section.
And the left end surface of the right sliding support is provided with a plurality of threaded holes corresponding to the flange holes on the flange plate, and the flange plate penetrates through the flange holes through screws and is fixed on the right sliding support in a threaded connection with the threaded holes.
The utility model has the advantages of it is following: the utility model discloses compact structure, the operating performance that can simulate reducing expansion cone test the working property of expansion cone, shorten the development and development cycle of reducing expansion cone, guide the improvement and the optimization of reducing expansion cone, can provide reliable parameter to the performance evaluation of expansion pipe.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a variable diameter expansion cone;
FIG. 3 is a schematic view of the installation of the expansion pipe and the axial expansion stress displacement sensor;
FIG. 4 is a schematic view of the installation of the expansion pipe and the radial expansion stress-strain sensor;
FIG. 5 is a graph showing the relationship between the expansion force and the displacement of the variable-diameter expansion cone;
FIG. 6 is a graph of casing stress versus displacement for an expanded tubular;
in the figure, 1-a workbench, 2-a data processor, 3-a variable-diameter expansion cone, 4-a left fixed support, 5-a right fixed support, 6-a left sliding support, 7-a right sliding support, 8-an expansion pipe, 9-a radial expansion stress displacement sensor, 10-an axial expansion stress displacement sensor, 11-a flange plate, 12-a sleeve, 13-a connecting rod, 14-a radial expansion hydraulic cylinder, 15-a radial expansion tension displacement sensor, 16-an expansion cone center pull rod, 17-an upper claw disc, 18-a lower claw disc, 19-an upper expansion block, 20-a lower expansion block, 21-an axial expansion hydraulic cylinder, 22-an axial expansion tension displacement sensor, 23-a horizontal chute, 24-a guide wheel and 25-a through groove, 26-threaded hole, 27-screw, 28-signal wire.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in figures 1-4, a reducing expansion cone testing device comprises a reducing expansion cone 3, wherein the reducing expansion cone 3 comprises an expansion cone center pull rod 16, an upper jaw disc 17, a lower jaw disc 18, an upper expansion block 19 and a lower expansion block 20, the device also comprises a workbench 1, a data processor 2, a reducing expansion cone 3, a left fixed support 4 and a right fixed support 5 which are arranged on the workbench 1, a left sliding support 6 and a right sliding support 7 which are arranged between a left fixed seat and a right fixed seat and can horizontally move along the workbench, a through hole is arranged in the left sliding support 6, an expansion pipe 8 which is arranged between the left fixed support 4 and the right sliding support 7 is arranged in the through hole, an elastic inner ring which is sleeved on the outer wall of the expansion pipe 8 is arranged between the through hole and the expansion pipe 8, the reducing expansion cone 3 which is convenient for expansion can expand a radial expansion section supported by the left sliding support 6, the expansion pipe 8 is divided into a left pipe section and a right pipe section by the left sliding support 6, the left pipe section and the right pipe section are respectively an axial expansion section and a radial expansion section, a plurality of radial expansion stress displacement sensors 9 are distributed on the outer wall of the radial expansion section, a plurality of axial expansion stress displacement sensors 10 are distributed on the outer wall of the axial expansion section, a flange plate 11 is welded at the right end part of the expansion pipe 8, the flange plate 11 is fixed on the right sliding support 7, a sleeve 12 axially extending into the radial expansion section along the expansion pipe 8 is fixedly arranged on the right end surface of the left fixed support 4, a connecting rod 13 axially arranged in the sleeve 12 is arranged in the sleeve 12, a radial expansion hydraulic cylinder 14 is fixedly arranged on the left end surface of the left fixed support 4, a piston shaft of the radial expansion hydraulic cylinder 14 extends into the sleeve 12, and a radial expansion tension displacement sensor 15 is arranged between the right end part of the piston shaft and the, in this embodiment, the radial expansion stress displacement sensors 9 are uniformly distributed on the outer wall of the radial expansion section, and the axial expansion stress displacement sensors 10 are uniformly distributed on the outer wall of the axial expansion section.
As shown in fig. 1-2, the variable-diameter expansion cone 3 is disposed in the radial expansion section, the variable-diameter expansion cone 3 includes an expansion cone center pull rod 16, an upper jaw disc 17, a lower jaw disc 18, an upper expansion block 19 and a lower expansion block 20, the upper jaw disc 17 is fixedly disposed on the right end surface of the sleeve 12, a center hole of the upper jaw disc 17 is communicated with the sleeve 12, the upper expansion block 19 is fixedly disposed on the right end surface of the upper jaw disc 17, the lower jaw disc 18 is disposed on the right side of the upper jaw disc 17, a left end surface of the lower jaw disc is fixedly disposed with the lower expansion block 20, a left end portion of the expansion cone center pull rod 16 penetrates through the center hole of the upper jaw disc 17 and is fixedly connected with a right end portion of the connecting rod 13, and a right end portion of the expansion cone center pull rod 16 penetrates through the upper expansion block 19 and the lower expansion.
As shown in fig. 1, an axial expansion hydraulic cylinder 21 is fixedly mounted on the right end face of the right fixed support 5, an axial expansion tension displacement sensor 22 is disposed between the piston shaft of the axial expansion hydraulic cylinder 21 and the right end portion of the right sliding support 7, and the data processor 2 is electrically connected to the radial expansion stress displacement sensor 9, the axial expansion stress displacement sensor 10, the radial expansion tension displacement sensor 15, and the axial expansion tension displacement sensor 22 through signal lines 28.
As shown in fig. 1, a horizontal sliding groove 23 is formed in the top surface of the workbench 1 between the left fixing support 4 and the right fixing support 5, guide wheels 24 are respectively disposed at the bottoms of the left sliding support 6 and the right sliding support 7, the guide wheels 24 are supported on the bottom surface of the horizontal sliding groove 23, through grooves 25 are respectively formed in the end surfaces of the left fixing support 4 and the right fixing support 5, a piston shaft of the radial expansion hydraulic cylinder 14 is disposed to penetrate through the through groove 25 of the left fixing support 4, and a piston shaft of the axial expansion hydraulic cylinder 21 is disposed to penetrate through the through groove 25 of the right fixing support 5.
As shown in fig. 1, a plurality of threaded holes 26 corresponding to the flange holes of the flange plate 11 are formed in the left end surface of the right sliding support 7, and the flange plate 11 penetrates through the flange holes through screws 27 and is fixed to the right sliding support 7 in a threaded manner with the threaded holes 26.
The working process of the utility model is as follows:
radial expansion test: an operator introduces hydraulic oil into a rod cavity of the radial expansion hydraulic cylinder 14, the hydraulic oil drives a piston shaft of the radial expansion hydraulic cylinder 14 to move leftwards, the piston shaft drives the connecting rod 13 to move leftwards, the connecting rod 13 drives the expansion cone center pull rod 16 to move leftwards, the expansion cone center pull rod 16 drives the lower claw disc 18 and the lower expansion block 20 to move leftwards along the axial direction of the expansion pipe 8, the upper claw disc 17 is fixed through the sleeve 12, so that the upper claw disc 17 is static, the lower expansion block 20 and the upper expansion block 19 are extruded and closed along with the continuous movement of the lower expansion block 20, the radial size of the reducing expansion cone 3 is expanded to be larger, and the expansion block generates radial expansion on a radial expansion section of the expansion pipe 8; after the lower expansion block 20 and the lower expansion block 20 are completely closed, the radial size of the variable-diameter expansion cone 3 reaches the maximum, and at the moment, the hydraulic oil is stopped to be introduced into the radial expansion hydraulic cylinder 14. In the radial expansion process, the radial expansion tension and displacement sensor 15 transmits the expansion tension and displacement of the variable-diameter expansion cone 3 to the data processor 2 through the signal wire 28 in real time, the data processor 2 stores and processes data, meanwhile, the radial expansion stress displacement sensor 9 transmits the casing stress and displacement of the expansion pipe 8 to the data processor 2 through the signal wire 28 in real time, and the data processor 2 stores and processes data;
axial expansion test: after the radial expansion test is completed, the loading of the radial expansion hydraulic cylinder 14 is stopped to lock the reducing expansion cone 3, then hydraulic oil is introduced into a rod cavity of the axial expansion hydraulic cylinder 21, the hydraulic oil drives a piston shaft of the axial expansion hydraulic cylinder 21 to move rightwards, the piston shaft drags the right sliding support 7 to move rightwards, the right sliding support 7 drives the expansion pipe 8 to move rightwards, at the moment, the expanding and locking reducing expansion cone 3 in the expansion pipe 8 axially moves leftwards relative to the expansion pipe 8, the reducing expansion cone 3 axially expands the expansion pipe 8 until the reducing expansion cone 3 completely separates from the expansion pipe 8, the axial expansion process is finished, and then the introduction of the hydraulic oil into the axial expansion hydraulic cylinder 21 is stopped. In the axial expansion process, the axial expansion tension and displacement sensor 22 transmits the expansion tension and displacement of the variable-diameter expansion cone 3 to the data processor 2 through the signal wire 28 in real time, the data processor 2 stores and processes the data, meanwhile, the axial expansion stress and displacement sensor 10 transmits the casing stress and displacement of the expansion pipe 8 to the data processor 2 through the signal wire 28 in real time, and the data processor 2 stores and processes the data.
And after the test is finished, the data processor 2 is used for processing and analyzing the data measured in the test process, and an expansion force-displacement curve and a sleeve stress-displacement curve are made. Therefore, the test device can simulate the radial expansion and axial expansion tests of the reducing expansion cone on the expansion pipe under the actual working condition, test the expansion force in the expansion process and the casing stress-strain condition of the expansion pipe, obtain the expansion force-displacement curve as shown in figure 5 and the casing stress-strain curve as shown in figure 6 through the data processor, provide data reference for the working performance of the expansion cone and the service performance analysis of the expansion pipe through analyzing the curves, and further shorten the development period of the reducing expansion cone.
Claims (6)
1. The utility model provides a reducing expansion cone test device, it includes reducing expansion cone (3), and reducing expansion cone (3) are including expansion cone center pull rod (16), go up claw dish (17), lower claw dish (18), go up expansion block (19) and lower expansion block (20), its characterized in that: the device also comprises a workbench (1), a data processor (2), a variable-diameter expansion cone (3), a left fixed support (4) and a right fixed support (5) which are arranged on the workbench (1), a left sliding support (6) and a right sliding support (7) which are arranged between a left fixed seat and a right fixed seat and can horizontally move along the workbench, a through hole is formed in the left sliding support (6), an expansion pipe (8) which is arranged between the left fixed support (4) and the right sliding support (7) is arranged in the through hole, an elastic inner ring which is sleeved on the outer wall of the expansion pipe (8) is arranged between the through hole and the expansion pipe (8), the expansion pipe (8) is divided into a left pipe section and a right pipe section by the left sliding support (6), the left pipe section and the right pipe section are respectively an axial expansion section and a radial expansion section, a plurality of radial expansion stress displacement sensors (9) are distributed on the outer wall of the radial expansion section, a plurality of axial expansion stress displacement sensors (10, a flange plate (11) is welded at the right end part of the expansion pipe (8), the flange plate (11) is fixed on the right sliding support (7), a sleeve (12) which extends into the radial expansion section along the axial direction of the expansion pipe (8) is fixedly arranged on the right end surface of the left fixed support (4), a connecting rod (13) which is arranged along the axial direction of the sleeve (12) is arranged in the sleeve (12), a radial expansion hydraulic cylinder (14) is fixedly arranged on the left end surface of the left fixed support (4), a piston shaft of the radial expansion hydraulic cylinder (14) extends into the sleeve (12), and a radial expansion tension displacement sensor (15) is arranged between the right end part of the piston shaft and the left end part of the connecting rod (13); the reducing expansion cone (3) is arranged in the radial expansion section, the upper jaw disc (17) is fixedly arranged on the right end face of the sleeve (12), a center hole of the upper jaw disc is communicated with the sleeve (12), an upper expansion block (19) is fixedly arranged on the right end face of the upper jaw disc (17), the lower jaw disc (18) is positioned on the right side of the upper jaw disc (17), a lower expansion block (20) is fixedly arranged on the left end face of the lower jaw disc, the left end part of the expansion cone center pull rod (16) penetrates through the center hole of the upper jaw disc (17) and is fixedly connected with the right end part of the connecting rod (13), and the right end part of the expansion cone center pull rod (16) sequentially penetrates through the upper expansion block (19) and the lower expansion block (20) and is fixedly arranged on the lower jaw disc (18); an axial expansion hydraulic cylinder (21) is fixedly mounted on the right end face of the right fixed support (5), an axial expansion tension displacement sensor (22) is arranged between a piston shaft of the axial expansion hydraulic cylinder (21) and the right end portion of the right sliding support (7), and the data processor (2) is electrically connected with the radial expansion stress displacement sensor (9), the axial expansion stress displacement sensor (10), the radial expansion tension displacement sensor (15) and the axial expansion tension displacement sensor (22) through signal lines (28).
2. The variable diameter expansion cone testing device of claim 1, wherein: a horizontal sliding groove (23) is formed in the top surface of the workbench (1) and located between the left fixed support (4) and the right fixed support (5).
3. The variable diameter expansion cone testing device of claim 1, wherein: the bottom of the left sliding support (6) and the bottom of the right sliding support (7) are both provided with guide wheels (24), and the guide wheels (24) are supported on the bottom surface of the horizontal sliding groove (23).
4. The variable diameter expansion cone testing device of claim 1, wherein: all seted up logical groove (25) on the terminal surface of left side fixing support (4) and right fixing support (5), the piston shaft of radial expansion pneumatic cylinder (14) runs through logical groove (25) setting of left fixing support (4), the piston shaft of axial expansion pneumatic cylinder (21) runs through logical groove (25) setting of right fixing support (5).
5. The variable diameter expansion cone testing device of claim 1, wherein: the radial expansion stress displacement sensors (9) are uniformly distributed on the outer wall of the radial expansion section, and the axial expansion stress displacement sensors (10) are uniformly distributed on the outer wall of the axial expansion section.
6. The variable diameter expansion cone testing device of claim 1, wherein: a plurality of threaded holes (26) corresponding to the flange holes in the flange plate (11) are formed in the left end face of the right sliding support (7), and the flange plate (11) penetrates through the flange holes through screws (27) and is fixed on the right sliding support (7) in a threaded connection mode with the threaded holes (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225777.2U CN210775053U (en) | 2019-07-31 | 2019-07-31 | Reducing expansion cone testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225777.2U CN210775053U (en) | 2019-07-31 | 2019-07-31 | Reducing expansion cone testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210775053U true CN210775053U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921225777.2U Expired - Fee Related CN210775053U (en) | 2019-07-31 | 2019-07-31 | Reducing expansion cone testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210775053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487640A (en) * | 2019-07-31 | 2019-11-22 | 西南石油大学 | A kind of variable diameter expansion cone experimental rig |
| CN114459652A (en) * | 2021-07-12 | 2022-05-10 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
-
2019
- 2019-07-31 CN CN201921225777.2U patent/CN210775053U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487640A (en) * | 2019-07-31 | 2019-11-22 | 西南石油大学 | A kind of variable diameter expansion cone experimental rig |
| CN110487640B (en) * | 2019-07-31 | 2024-04-05 | 西南石油大学 | Reducing expansion cone test device |
| CN114459652A (en) * | 2021-07-12 | 2022-05-10 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
| CN114459652B (en) * | 2021-07-12 | 2024-01-02 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |