CN110926767A - Testing device for rotary guide balance rubber sleeve - Google Patents
Testing device for rotary guide balance rubber sleeve Download PDFInfo
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- CN110926767A CN110926767A CN201811019739.1A CN201811019739A CN110926767A CN 110926767 A CN110926767 A CN 110926767A CN 201811019739 A CN201811019739 A CN 201811019739A CN 110926767 A CN110926767 A CN 110926767A
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- rubber sleeve
- sliding rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a test device for a rotary guide balance rubber sleeve, which comprises a closed first cavity; the second cavity is arranged in the inner cavity of the first cavity, and a mounting hole is formed in the wall of the second cavity; the first end of the sliding rod can penetrate through the mounting hole and extend into the inner cavity of the second cavity; the driving mechanism is used for driving the sliding rod to repeatedly move along the axial direction of the sliding rod, the inner ring of the rotary guide balance rubber sleeve is fixedly connected with the sliding rod, the outer ring of the rotary guide balance rubber sleeve is fixedly connected with the second cavity and used for plugging the mounting hole to form a closed second cavity, and the testing device can simulate an actual working state so as to test the performance of the balance rubber sleeve.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas drilling, in particular to a test device for a rotary steering balance rubber sleeve.
Background
With the development of drilling technologies such as horizontal wells, extended reach wells, multilateral wells, shale gas and the like, the push-pull type rotary steering system has been widely applied. In a push-type rotary steering tool with an independent closed-loop hydraulic control system, the expansion and contraction of a push wing rib are mainly controlled by the pressure difference between the inside and the outside of a hydraulic module. When the pressure generated by the hydraulic oil driven by the hydraulic pump in the hydraulic module is greater than the mud pressure in the annular space of the well casing, the hydraulic oil pushes the piston to drive the wing ribs to extend out. The mud pressure in the annular space of the well casing changes along with the change of the depth, the annular mud pressure in the deflecting or steady deflecting section of the rotary guiding tool can reach dozens or one hundred megapascals generally, if the annular mud pressure is overcome by only depending on the pressure provided by the hydraulic module of the rotary guiding system, the design requirement of the hydraulic module can be improved, the service life of the hydraulic module is shortened, and the production cost is very high. Therefore, the balance rubber sleeve is needed to compensate the pressure of the hydraulic module of the rotary guide system, so that the internal pressure and the external pressure of the hydraulic module are balanced, and the hydraulic pump can overcome the pressure of annular slurry and extend the wing rib as long as the hydraulic pump generates pressure of several megapascals or more than ten megapascals.
However, the balance rubber sleeve is in the underground high-temperature and high-pressure environment for a long time, and the balance rubber sleeve can also repeatedly stretch and retract under certain working conditions, so that the balance rubber sleeve is easy to lose effectiveness, and the whole rotary guide system cannot normally work.
Therefore, in order to test and randomly check the performance of the balance rubber sleeve, a device capable of simulating the working state of the balance rubber sleeve is needed to test the performance of the balance rubber sleeve.
Disclosure of Invention
Aiming at part or all of the technical problems in the prior art, the invention provides a test device for a rotary guide balance rubber sleeve. The test device can simulate the actual working state, thereby testing the performance of the balance rubber sleeve.
According to the present invention, there is provided a test apparatus for a rotationally guided balanced gum cover, comprising:
a first cavity body which is closed is arranged in the first cavity body,
a second cavity which is arranged in the inner cavity of the first cavity and is provided with a mounting hole on the wall,
a first end of the sliding rod can penetrate through the mounting hole and extend into the inner cavity of the second cavity,
a driving mechanism for driving the slide bar to move repeatedly along the axial direction of the slide bar,
the inner ring of the rotary guide balance rubber sleeve is fixedly connected with the sliding rod, and the outer ring of the rotary guide balance rubber sleeve is fixedly connected with the second cavity and used for plugging the mounting hole to form a closed second cavity.
In one embodiment, the second cavity has:
a box-type main body,
a sealing cover arranged at the upper end opening of the box-type main body, at least two through holes communicated with the inside and the outside are arranged on the sealing cover,
a sealing plug for detachably plugging each through hole,
wherein, the mounting hole is positioned at the lower end of the box-type main body.
In one embodiment, the opening position of at least one through hole is higher than the opening positions of the other through holes.
In one embodiment, a limiting member is fixedly disposed in the inner cavity of the second cavity, and the first end of the sliding rod penetrates through the limiting member at intervals and then is fixedly connected with the limiting nut.
In one embodiment, the drive mechanism has:
a motor arranged at the outer side of the first cavity,
a cam component, the driving component of the cam component is fixedly connected with the output shaft of the motor,
and the connecting frame is used for connecting the driven rod of the cam component with the sliding rod.
In one embodiment, a guide cylinder for surrounding the driven rod is disposed in the interior cavity of the first cavity.
In one embodiment, a dynamic seal assembly is disposed between the guide cylinder and the driven rod.
In one embodiment, a heater is disposed on an outer wall of the first chamber.
In one embodiment, the first and second cavities are made of a stainless steel material.
In one embodiment, a handle for lifting is provided on the outer wall of the first chamber.
Compared with the prior art, the test device has the advantages that the test device can be used for testing the performance of the balance rubber sleeve, so that the actual production and use are guided. The closed first cavity is used for simulating the underground environment of a shaft, and is beneficial to improving the simulation accuracy; in addition, the sliding rod can move repeatedly along the axial direction to drive the balance rubber sleeve to stretch repeatedly so as to simulate the underground working state of the balance rubber sleeve, and therefore the performances such as the flexibility and the like of the balance rubber sleeve are verified.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 shows a test apparatus for a rotating guide balance gum cover according to an embodiment of the invention;
in the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 shows a test apparatus 100 for a rotary steerable balanced gum cover according to the present invention. As shown in fig. 1, the testing device 100 includes a first cavity 1, a second cavity 2, a slide bar 3 and a driving structure. Wherein, the first cavity 1 is closed and used for simulating a shaft, so as to be helpful for simulating the actual working environment of the balance rubber sleeve 200. The second cavity 2 is disposed in the inner cavity of the first cavity 1. And a mounting hole 21 is provided on the wall of the second chamber 2. The first end of the slide rod 3 can extend through the mounting hole 21 into the inner cavity of the second cavity 2. The driving structure is used for driving the slide rod 3 to move repeatedly along the axial direction.
In the test process, the inner ring of the balance rubber sleeve 200 is fixed with the slide bar 3, and the outer ring is fixed with the second cavity 2. After the balance rubber sleeve 200 is set in place, the balance rubber sleeve 200 plays a role in plugging the mounting hole 21 and sealing the second cavity 2. The closed first cavity 1 is used for simulating the underground environment of a shaft, and is beneficial to improving the simulation accuracy. Under the action of the driving structure, the sliding rod 3 repeatedly moves along the axial direction to drive the balance rubber sleeve 200 to repeatedly stretch and contract, and the working state of the balance rubber sleeve 200 is simulated, so that the stretching performance of the balance rubber sleeve 200 is tested. In addition, in the process that the slide bar 3 moves outwards relative to the second cavity 2, the volume of the inner cavity of the second cavity 2 tends to increase, and at the moment, because the first cavity 1 and the second cavity 2 are filled with pressure liquid, the balance rubber sleeve 200 contracts. Conversely, during the inward movement of the sliding rod 3 relative to the second cavity 2, the inner cavity of the second cavity 2 tends to become smaller, and at this time, the balance rubber sleeve 200 is stretched because the first cavity 1 and the second cavity 2 are filled with the pressure fluid. The test apparatus 100 can also simulate the shrinkage and extension of the balance rubber sleeve 200 to test the toughness, strength and other properties.
In one embodiment, the drive mechanism has a motor 5, a cam assembly 6, and a connecting bracket 8. Wherein, the motor 5 is arranged at the outer side of the first cavity 1 and used as a power source. The cam assembly 6 is used to effect axial reciprocating movement of the slide 3. Specifically, the driving member 61 of the cam assembly 6 is fixedly connected with the output shaft 51 of the motor 5 to receive the torque of the output shaft 51. One end of the driven rod 62 of the cam assembly 6 is in contact with the driving member 61 to be carried along to effect the repeated movement in the axial direction of the driven rod 62. The other end of the driven rod 62 sealingly extends through the wall of the first chamber 1 into the inner cavity of the first chamber 1. The connecting frame 8 is arranged between the driven rod 62 and the slide bar 3 so that the driven rod 62 carries the slide bar 3 along. The structure is simple, and the repeated movement of the sliding rod 3 can be easily realized.
The positions of the driven rod 62 and the connecting frame 8 are adjustable in the axial direction of the driven rod 62, so that the repeated telescopic length of the balance rubber sleeve 200 is different in size, different test tests are carried out, or the test device 100 is suitable for the balance rubber sleeves 200 with different sizes. Structurally, the driven rod 62 and the connecting frame 8 can be pin-hole fitted. That is, the driven lever 62 is provided with a plurality of positioning holes spaced along its axial direction, and the positioning pins are inserted into different positioning holes after passing through the link frame 8 and fixed to different positions.
It should be noted that the above description only shows one way of achieving the repetitive movement of the slide bar 3. Of course, the repeated movement of the slide bar 3 can be realized in other forms of construction, for example, the slide bar 3 is a same part as the driven bar 62, and other constructions are correspondingly adjusted and modified, as would be foreseen by the person skilled in the art. Therefore, any structure that can achieve the repetitive movement of the slide bar 3 may fall within the scope of the present application.
In one embodiment, the second chamber 2 has a main body 22, a sealing cap 23 and a sealing plug 24. The main body 22 is box-shaped. A sealing cover 23 is provided at an open end of the main body 22 for covering the main body 22. And at least two through holes 25 are provided on the sealing cover 23. The sealing plug 24 is detachably arranged at the through hole 25 and used for plugging the through hole 25. Preferably, the opening position of at least one through hole 25 is higher than the opening positions of the other through holes 25. It is further preferable that the opening position of the through-hole 25 whose opening position is high is higher than the opening position of the other through-holes 25 by 0.2 to 1 cm, for example, 0.8 cm. In this configuration, the mounting hole 21 is at the lower end of the box-like body 22, and the first end of the slide rod 3 extends upward to be inserted into the inner cavity of the second cavity 2. In the test process, hydraulic oil is filled into the second cavity 2 for simulating the actual shaft working environment. The structure can well ensure that the second cavity 2 is filled with hydraulic oil, thereby ensuring that the working environment of the balance rubber sleeve 200 is better simulated.
According to the present invention, a limiting member 26 is fixedly disposed in the inner cavity of the second cavity 2. The first end of the slide bar 3 extends upward through the stopper 26. At the same time, the slide rod 3 is in clearance fit with the limiting member 26, so that the slide rod 3 can move axially relative to the limiting member 26. A limiting nut 27 is arranged at the first end of the sliding rod 3, and the position of the sliding rod 3 relative to the second cavity 2 can be positioned by screwing the limiting nut 27, so that the sliding rod 3 is prevented from further moving downwards relative to the limiting member 26. The stop nut 27 then serves to adjust the position of the balancing sleeve 200 during installation.
Specifically, the body 22 may be configured with a first portion 28 and a second portion 29 located below the first portion 28. Wherein the cross-sectional dimension of the first portion 28 is larger than the cross-sectional dimension of the second portion 29. That is, the dimensions of the second portion 29 are set back relative to the dimensions of the first portion 28. The stop 26 may be configured as a cap that snaps into place at the interface where the first portion 28 and the second portion 29 communicate. The stop 26 has a length in the axial direction, for example 5-8 cm. Meanwhile, the clearance between the slide rod 3 and the limiting piece 26 can also be 0.3-1 cm. The limiting member 26 serves to guide the sliding rod 3, and thus to limit the moving direction of the balance rubber sleeve 200.
A guide cylinder 4 is fixedly arranged in the inner cavity of the first cavity 1 and used for surrounding the outer wall of the driven rod 62. The guide cylinder 4 may be fixedly provided on an upper end inner wall surface of the first chamber 1. The guide cylinder 4 defines the movement direction of the driven rod 62 and plays a role of guiding. Meanwhile, a dynamic seal assembly 9 is provided between the guide cylinder 4 and the driven rod 62. The dynamic seal assembly 9 serves to seal the first chamber 1 and also serves to further guide the driven rod 62.
In one embodiment, a heater 10 is provided on an outer wall of the first chamber 1 for heating the liquid of the first chamber 1 to simulate a high temperature and high pressure environment in actual operation.
Preferably, the first and second chambers 1 and 2 are made of a stainless steel material. Of course, the present application is not limited to stainless steel materials, but may be made of other high strength metals.
A handle 11 for hoisting is arranged on the outer wall of the first cavity 1. The handle 11 is a ring shape fixedly disposed on the upper surface of the first chamber 1.
The driven rod 62 may be connected to a plurality of slide bars 3, and each slide bar 3 corresponds to one second cavity 2, so as to test a plurality of balance rubbers 200 in a single test process. In order to make the second cavity 2 uniformly contact the pressure liquid in the first cavity 1 and better simulate the actual working environment, the second cavity 2 is arranged on the upper surface of the inner cavity of the first cavity 1 through the hoisting strip 12.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention disclosed, and such changes or variations should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A test device for rotating guide balance gum cover, its characterized in that includes:
a first cavity body which is closed is arranged in the first cavity body,
a second cavity arranged in the inner cavity of the first cavity and provided with a mounting hole on the wall,
a sliding rod, the first end of which can pass through the mounting hole and extend into the inner cavity of the second cavity,
a driving mechanism for driving the slide bar to move repeatedly along the axial direction of the slide bar,
the inner ring of the rotary guide balance rubber sleeve is fixedly connected with the sliding rod, and the outer ring of the rotary guide balance rubber sleeve is fixedly connected with the second cavity and used for plugging the mounting hole to form the closed second cavity.
2. The test device of claim 1, wherein the second cavity has:
a box-type main body,
a sealing cover arranged at the upper end opening of the box-type main body, at least two through holes communicated with the inside and the outside are arranged on the sealing cover,
a sealing plug for detachably plugging each through hole,
wherein the mounting hole is located at the lower end of the box-type main body.
3. The testing device according to claim 2, wherein the opening position of at least one of the through holes is higher than the opening positions of the other through holes.
4. The testing device according to claim 2 or 3, wherein a limiting member is fixedly disposed in the inner cavity of the second cavity, and the first end of the sliding rod is fixedly connected to a limiting nut after passing through the limiting member at intervals.
5. Test device according to one of the claims 1 to 4, characterized in that the drive mechanism has:
a motor arranged outside the first cavity,
the driving component of the cam component is fixedly connected with the output shaft of the motor,
and the connecting frame is used for connecting the driven rod of the cam assembly with the sliding rod.
6. Test rig according to claim 5, characterized in that a guide cylinder for surrounding the driven rod is provided in the inner cavity of the first cavity.
7. The trial of claim 6 wherein a dynamic seal assembly is provided between the guide cylinder and the driven rod.
8. Test device according to one of the claims 1 to 7, characterized in that a heater is provided on the outer wall of the first chamber.
9. The test device of any one of claims 1 to 8, wherein the first and second cavities are both made of a stainless steel material.
10. Test device according to one of the claims 1 to 9, characterized in that a handle for lifting is provided on the outer wall of the first chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811019739.1A CN110926767B (en) | 2018-09-03 | 2018-09-03 | Testing device for rotary guide balance rubber sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811019739.1A CN110926767B (en) | 2018-09-03 | 2018-09-03 | Testing device for rotary guide balance rubber sleeve |
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| Publication Number | Publication Date |
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| CN110926767A true CN110926767A (en) | 2020-03-27 |
| CN110926767B CN110926767B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811019739.1A Active CN110926767B (en) | 2018-09-03 | 2018-09-03 | Testing device for rotary guide balance rubber sleeve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495011A (en) * | 2020-04-02 | 2021-10-12 | 中国石油化工股份有限公司 | Dynamometer and ground testing device and method for underground directional tool |
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| US4407375A (en) * | 1981-05-29 | 1983-10-04 | Tsukamoto Seiki Co., Ltd. | Pressure compensator for rotary earth boring tool |
| CN102156030A (en) * | 2011-01-20 | 2011-08-17 | 航天晨光股份有限公司 | External-pressure fatigue test equipment for corrugated pipe |
| CN202391412U (en) * | 2011-11-21 | 2012-08-22 | 航天科工惯性技术有限公司 | Pressure balancing device suitable for underground work environment |
| CN203758763U (en) * | 2014-02-25 | 2014-08-06 | 中国石油化工集团公司 | Full-size rotation guiding system testing device |
| CN104215438A (en) * | 2013-05-31 | 2014-12-17 | 中国石油化工股份有限公司 | Steering capacity test device for rotary steering system |
| CN106371425A (en) * | 2016-10-31 | 2017-02-01 | 北京恒泰万博石油技术股份有限公司 | Simulation experimental bench and method for control system of rotary steering execution mechanism |
| CN108150483A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | Hydraulic module pressure-bearing testing device |
| CN108167259A (en) * | 2018-01-03 | 2018-06-15 | 中国石油集团西部钻探工程有限公司 | Actuation module and downhole tool hydraulic module |
| CN108204901A (en) * | 2016-12-16 | 2018-06-26 | 航天科工惯性技术有限公司 | For the ground simulation circulation test device of rotary steering system |
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2018
- 2018-09-03 CN CN201811019739.1A patent/CN110926767B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4407375A (en) * | 1981-05-29 | 1983-10-04 | Tsukamoto Seiki Co., Ltd. | Pressure compensator for rotary earth boring tool |
| CN102156030A (en) * | 2011-01-20 | 2011-08-17 | 航天晨光股份有限公司 | External-pressure fatigue test equipment for corrugated pipe |
| CN202391412U (en) * | 2011-11-21 | 2012-08-22 | 航天科工惯性技术有限公司 | Pressure balancing device suitable for underground work environment |
| CN104215438A (en) * | 2013-05-31 | 2014-12-17 | 中国石油化工股份有限公司 | Steering capacity test device for rotary steering system |
| CN203758763U (en) * | 2014-02-25 | 2014-08-06 | 中国石油化工集团公司 | Full-size rotation guiding system testing device |
| CN106371425A (en) * | 2016-10-31 | 2017-02-01 | 北京恒泰万博石油技术股份有限公司 | Simulation experimental bench and method for control system of rotary steering execution mechanism |
| CN108204901A (en) * | 2016-12-16 | 2018-06-26 | 航天科工惯性技术有限公司 | For the ground simulation circulation test device of rotary steering system |
| CN108150483A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | Hydraulic module pressure-bearing testing device |
| CN108167259A (en) * | 2018-01-03 | 2018-06-15 | 中国石油集团西部钻探工程有限公司 | Actuation module and downhole tool hydraulic module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495011A (en) * | 2020-04-02 | 2021-10-12 | 中国石油化工股份有限公司 | Dynamometer and ground testing device and method for underground directional tool |
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| CN110926767B (en) | 2021-07-30 |
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