CN211851827U - Casing coupling positioning tool - Google Patents
Casing coupling positioning tool Download PDFInfo
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- CN211851827U CN211851827U CN202020141061.0U CN202020141061U CN211851827U CN 211851827 U CN211851827 U CN 211851827U CN 202020141061 U CN202020141061 U CN 202020141061U CN 211851827 U CN211851827 U CN 211851827U
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- groove
- push plate
- sleeve
- positioning
- casing collar
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- 230000008878 coupling Effects 0.000 title abstract description 23
- 238000010168 coupling process Methods 0.000 title abstract description 23
- 238000005859 coupling reaction Methods 0.000 title abstract description 23
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides a casing coupling positioning tool, which comprises a body, be equipped with a plurality of recesses along the circumference interval on the body outer wall, all be equipped with the suppress subassembly in each recess, the suppress subassembly includes elastic element and push pedal, the push pedal can be installed in the recess along the radial reciprocating motion's of body spacing, elastic element installs between the push pedal and the recess tank bottom that correspond, the outside surface of each push pedal is equipped with the location arch, elasticity through elastic element pushes away to, each location arch all protrudes the body surface, when each push pedal is located the position that the tank bottom of corresponding recess is furthest, each location arch distance is greater than the sleeve pipe radius apart from the distance between the position that the tank bottom of corresponding recess is furthest and the body axis. The utility model discloses an use and to supply the staff accuracy to find the sheathed tube coupling of treating split position and this treating split position department to the staff is operated the coupling that is located to treat split position department, reaches and carries out the effect that the accuracy was got and is traded the sleeve pipe.
Description
Technical Field
The utility model belongs to the technical field of the sleeve pipe is got and is put, especially, indicate a sleeve pipe coupling positioning tool.
Background
In the conventional operation of an oil well, the situation that a sleeve needs to be taken out and replaced often occurs, the sleeve is formed by sequentially connecting a plurality of pipe bodies through a plurality of couplings, in the construction process of taking out and replacing the sleeve, the two pipe bodies can be separated by operating the couplings between the two pipe bodies, so that the split of the sleeve is realized, wherein, it is very necessary to accurately take out the pipe bodies in a preset number according to the construction requirement, if the quantity of the taken out pipe bodies is more than the preset quantity, the situation that a well hole is lost can possibly occur seriously, if the quantity of the taken out pipe bodies is less than the preset quantity, repeated construction is needed, and in the prior art, the specific coupling at the position to be split and the split position on the sleeve is difficult to accurately find.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sleeve pipe coupling positioning tool can accurately find the sleeve pipe on treat split position department, accurately find the coupling of treating split position department promptly to the staff operates the coupling that is located to treat split position department, reaches the effect of accurately getting the trade to the sleeve pipe.
In order to achieve the above object, the present invention provides a casing coupling positioning tool, wherein the casing coupling positioning tool comprises a tubular body, a plurality of grooves are formed on the outer surface of the body along the circumferential direction at uniform intervals, a set of spring assemblies are disposed in each groove, each spring assembly comprises an elastic element and a push plate, the push plates are mounted in the corresponding grooves in a limited manner and can move back and forth along the radial direction of the body, the elastic elements are mounted between the corresponding push plates and the bottoms of the corresponding grooves, a positioning protrusion is convexly disposed on the surface of one side of each push plate facing the corresponding groove, each positioning protrusion is located at the same axial position of the body, each elastic element can elastically push the corresponding push plate to enable each positioning protrusion to protrude out of the outer surface of the body, and under the state that each push plate is positioned at the position farthest from the corresponding groove bottom of the groove, the distance between the position farthest from the corresponding groove bottom of the groove on the positioning bulge on each push plate and the axis of the body is larger than the radius of the sleeve.
The casing collar positioning tool comprises a body, a push plate and a sleeve collar, wherein the body is provided with a notch, the push plate is provided with a groove, the groove is axially extended along the body, and the push plate is a strip-shaped plate matched with the notch of the groove in shape.
The casing collar positioning tool comprises a body, a pushing plate and a groove, wherein the pushing plate is provided with a groove bottom, the groove bottom is provided with a groove opening, the groove opening is provided with a groove opening, the pushing plate is provided with a groove opening, the groove opening is provided with a groove, the elastic element comprises at least two compression springs which are arranged along the axial direction of the body at intervals, one end of each compression spring is connected with the corresponding pushing plate, the other end of each compression spring is connected with the corresponding.
In the casing collar positioning tool, each of the compression springs is mounted between the corresponding push plate and the corresponding groove bottom of the groove in a compressed state, and the compression amount of each of the compression springs is 5% to 20% of the original length of the compression spring.
The casing collar positioning tool comprises a positioning protrusion, wherein the positioning protrusion is a raised line extending along the width direction of the strip-shaped plate, the positioning protrusion is provided with a first inclined plane facing the direction of the first end of the body and a second inclined plane facing the direction of the second end of the body, the first inclined plane and the second inclined plane gradually increase in distance between the strip-shaped plates and gradually decrease in distance between the second inclined plane and the strip-shaped plate, and the intersection of the first inclined plane and the second inclined plane is the farthest position of the groove bottom of the groove corresponding to the distance on the positioning protrusion.
The casing collar positioning tool comprises a body, a plurality of grooves, a plurality of push plates and a limiting assembly, wherein each push plate is limited in the corresponding groove through the limiting assembly, the limiting assembly comprises a first limiting sleeve and a second limiting sleeve, the first limiting sleeve and the second limiting sleeve are sleeved on the body, the first limiting sleeve is arranged close to the first end of the body, the second limiting sleeve is arranged close to the second end of the body, the first limiting sleeve blocks and limits the end part, close to the first end of the body, of each push plate at the position, close to the first end of the body, of the notch of each groove, and the second limiting sleeve blocks and limits the end part, close to the second end of the body, of each push plate at the position, close to the second end of the body, of the notch of each groove.
The casing collar positioning tool as described above, wherein a sealing sleeve is provided between the first limiting sleeve and the body and between the second limiting sleeve and the body, respectively.
The casing collar positioning tool comprises a body, a first limiting sleeve and a second limiting sleeve, wherein the first limiting sleeve and the second limiting sleeve are respectively connected with the body in a positioning mode through a plurality of positioning pieces arranged along the radial direction of the body.
The casing collar positioning tool comprises four grooves, four groups of elastic pressing assemblies are arranged, and the elastic element of each group of elastic pressing assemblies comprises four compression springs.
The casing collar locating tool described above wherein the first end of the body is provided with a female connector and the second end of the body is provided with a male connector.
Compared with the prior art, the utility model has the advantages as follows:
the utility model is provided with a groove on the body and a spring component in the groove, wherein, the elastic component of the spring component always provides elastic supporting force for the push plate to keep the push plate at the notch of the corresponding groove, and the positioning bulge on each push plate protrudes out of the outer surface of the body; because the distance between the position on the positioning bulge on each push plate, which is farthest away from the bottom of the corresponding groove, and the axis of the body is larger than the radius of the sleeve, when the utility model is placed in the sleeve, each positioning bulge and each push plate move towards the direction close to the bottom of the corresponding groove under the action of the inner wall of the sleeve; because the joint between every two pipe bodies of the sleeve is provided with a gap, when the positioning bulge reaches the gap between every two pipe bodies in the process of axial movement of the sleeve, the utility model is not limited by the inner wall of the sleeve, under the pushing of the elastic element, the push plate and the positioning bulge can move towards the direction far away from the bottom of the corresponding groove, and the positioning bulge is inserted into the gap of the joint between the two pipe bodies, at the moment, the utility model can continue to move along the axial direction of the sleeve by applying larger external force, so that the suspended weight of the sleeve changes once, and the working personnel can determine the number of the pipe bodies according to the fluctuation times of the suspended weight of the sleeve, thereby accurately finding the position to be split of the sleeve and the coupling at the position to be split, so that the working personnel can operate the coupling at the position to be split, the effect of accurately taking and replacing the sleeve is achieved.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural view of the casing collar positioning tool provided by the present invention.
The reference numbers illustrate:
1. a body;
11. a groove;
12. an internal thread joint;
13. an externally threaded nipple;
2. a spring assembly;
21. an elastic element;
22. pushing the plate;
221. positioning the projection;
2211. a first inclined surface;
2212. a second inclined surface;
3. a first limit sleeve;
4. a second limit sleeve;
5. a sealing sleeve;
6. a positioning member.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a casing collar positioning tool, wherein the casing collar positioning tool includes a tubular body 1 with two open ends and a hollow interior, a plurality of grooves 11 are formed on the outer surface of the body 1 along the circumference of the body at uniform intervals, a set of spring assemblies 2 is disposed in each groove 11, each spring assembly 2 includes an elastic element 21 and a push plate 22, the push plates 22 are disposed in the corresponding grooves 11 in a limited manner, each push plate 22 can reciprocate along the radial direction of the body 1, that is, the push plates 22 cannot move to the outside of the grooves 11 from the notches of the corresponding grooves 11 when moving in the corresponding grooves 11, the elastic elements 21 are disposed between the corresponding push plates 22 and the bottoms of the corresponding grooves 11, a positioning protrusion 221 is convexly disposed on one side surface of each push plate 22 (i.e., one side surface facing the outside of the corresponding groove 11) far away from the body 1, and each positioning protrusion 221 is located at the same position in the axial direction of the body 1, that is, each positioning protrusion 221 is located on the same radial cross section of the body 1, each elastic element 21 can elastically push the corresponding push plate 22 to make each positioning protrusion 221 protrude out of the outer surface of the body 1, each push plate 22 can move towards the inside of the corresponding groove 11 under the condition that the surface of each push plate 22 facing the outside of the corresponding groove 11 is subjected to pressure which is greater than the elastic supporting force provided by the elastic element 21 for the push plate 22, and each push plate 22 is located at the notch of the corresponding groove 11, that is, at the farthest position from the groove bottom of the corresponding groove 11, and in the state that each push plate 22 is located at the farthest position from the groove bottom of the corresponding groove 11, the distance between the position of the positioning protrusion 221 on each push plate 22 from the groove bottom of the corresponding groove 11 and the axis of the body 1 is greater than the farthest distance from the sleeve pipe 1 when the surface of each push plate 22 facing the outside of the corresponding groove 11 is not subjected to pressure or is subjected to pressure which is less than the elastic supporting force provided by the elastic element 21 for the push plate 22 And when the utility model is arranged in the interior of the sleeve, the positioning protrusions 221 and the corresponding push plates 22 can move towards the interior of the corresponding grooves 11 to adapt to the size of the sleeve by the thrust of the inner surface of the sleeve.
Thus, the body 1 is provided with the groove 11 and the elastic component 2 is arranged in the groove 11, wherein the elastic component 21 of the elastic component 2 always provides elastic supporting force for the push plate 22 to keep the push plate 22 at the notch of the corresponding groove 11, and the positioning protrusion 221 on each push plate 22 protrudes out of the outer surface of the body 1; because the distance between the position farthest from the bottom of the corresponding groove 11 on the positioning protrusion 221 on each push plate 22 and the axis of the body 1 is greater than the radius of the sleeve, when the utility model is placed in the sleeve, each positioning protrusion 221 and the push plate 22 move towards the direction close to the bottom of the corresponding groove 11 under the action of the inner wall of the sleeve; because the connection position between every two pipe bodies of the sleeve is provided with a gap, the utility model is not limited by the inner wall of the sleeve when the positioning bulge 221 reaches the gap between every two pipe bodies in the process of axial movement of the inner part of the sleeve, the push plate 22 and the positioning bulge 221 can move towards the direction far away from the bottom of the corresponding groove 11 under the pushing of the elastic element 21, and the positioning bulge 221 is inserted into the gap at the connection position between the two pipe bodies, at the moment, the utility model can continue to move along the axial direction of the sleeve by applying larger external force, the operation of force application can lead the suspended weight of the sleeve to change once, and technicians in the field can determine the number of the sleeve through the pipe bodies according to the number of times of fluctuation of the suspended weight of the sleeve, thereby accurately finding the position to be split of the sleeve and the coupling at the position to be split, so that the working personnel can operate the coupling at the position to be disassembled, and the effect of accurately taking and replacing the casing pipe is achieved.
Further, as shown in fig. 1, the utility model provides a casing coupling positioning tool, wherein, recess 11 is the axially extended bar groove along body 1, and each push pedal 22 is the notch shape assorted bar shaped plate with recess 11, establishes each recess 11 and the push pedal 22 that corresponds to the bar and can reduce the convex internal surface of body 1 to the bar the utility model discloses the influence of result of use guarantees that the protruding 221 homoenergetic in the location on each push pedal 22 can arrive smoothly in the gap between two bodys. In order to reduce the distance between the surface of one side of each push plate 22 facing the outside of the corresponding groove 11 and the inner surface of the sleeve at the corresponding position, the outer side surface of the push plate 22 may be configured to have a structure in which the cross section protruding toward the direction close to the sleeve is approximately trapezoidal.
Preferably, as shown in fig. 1, the present invention provides a casing collar positioning tool, wherein the elastic element 21 includes at least two compression springs disposed along the axial direction of the body 1 at intervals, one end of each compression spring is connected to the corresponding push plate 22, and the other end of each compression spring is connected to the bottom of the corresponding groove 11, so as to ensure that at least two supporting points are provided between each push plate 22 and the bottom of the corresponding groove 11, so that each push plate 22 can move smoothly and reciprocally in the corresponding groove 11 in a state of being parallel to the bottom of the corresponding groove 11, each compression spring is mounted between the corresponding push plate 22 and the bottom of the corresponding groove 11 in a compressed state, so as to ensure that each elastic element 21 always provides sufficient elastic support for the corresponding push plate 22, so that each push plate 22 always remains at the notch of the corresponding groove 11 in a state of not stressing the side surface of each push plate 22 facing the outside of the corresponding groove 11, so that the positioning protrusions 221 of each push plate 22 protrude from the outer surface of the body 1.
As preferred, the utility model provides a casing coupling positioning tool, wherein, under the state that each pressure spring was installed between the tank bottom of the push pedal 22 that corresponds and the recess 11 that corresponds with the state of compressed, the decrement of each pressure spring was 5% ~ 20% of the former length of pressure spring to guarantee that each pressure spring can also be further compressed and can be used for each push pedal 22 and the protruding 221 of location on it can move towards the inside of the recess 11 that corresponds.
Further, as shown in fig. 1, the utility model provides a casing collar positioning tool, wherein, the protruding sand grip that 221 set up is extended for the width direction along the strip board to fix a position protruding 221 and have a first inclined plane 2211 towards the first end place direction of body 1 and a second inclined plane 2212 towards the second end place direction of body 1, along the direction from the first end of body 1 to the second end of body 1, distance between first inclined plane 2211 and the strip board increases gradually and distance between second inclined plane 2212 and the strip board reduces gradually, first inclined plane 2211 and the crossing department of second inclined plane 2212 are the position that the groove bottom of the recess 11 that corresponds is apart from on the protruding 221 of location is the farthest, in the time of using, first inclined plane 2211 and second inclined plane 2212 can play the effect of guide transition, can guarantee through setting up first inclined plane 2211 and second inclined plane 2212 that each location is protruding 221 can enter into the gap of junction between two pipes smoothly and follow the two pipes smoothly The positioning protrusions 221 are prevented from being clamped by the end portions of the pipe bodies and being incapable of exiting from the gaps after the positioning protrusions 221 enter the gaps at the connecting positions between the two pipe bodies.
Preferably, as shown in fig. 1, the present invention provides a casing collar positioning tool, wherein each push plate 22 is limited in the corresponding groove 11 by a limiting component, the limiting component includes a first limiting sleeve 3 and a second limiting sleeve 4, the first limiting sleeve 3 and the second limiting sleeve 4 are both sleeved on the body 1, the first limiting sleeve 3 is disposed near the first end of the body 1, and the second limiting sleeve 4 is disposed near the second end of the body 1, the first limiting sleeve 3 blocks and limits the end portion of each push plate 22 near the first end of the body 1 at the position near the first end of the body 1 of the notch of each groove 11, the second limiting sleeve 4 blocks and limits the end portion of each push plate 22 near the second end of the body 1 at the position near the second end of the body 1 of the notch of each groove 11, so that the push plate 22 is blocked at the two ends of each push plate 22 to keep the push plate 22 inside the corresponding groove 11, it should be noted that, the first limiting sleeve 3 and the second limiting sleeve 4 are only provided as preferred embodiments of the present invention, and the present invention is not limited thereto.
Preferably, as shown in fig. 1, the utility model provides a casing collar positioning tool, wherein, be equipped with sealing sleeve 5 between first spacing sleeve 3 and the body 1 and between second spacing sleeve 4 and the body 1 respectively to prevent that the removal of push pedal 22 from causing the hindrance and to cause the corruption to elastic element 21 in the fluid impurity gets into recess 11 in the oil well.
As preferred, as shown in fig. 1, the utility model provides a casing collar positioning tool, wherein, first spacing sleeve 3 and second spacing sleeve 4 are met with body 1 location through a plurality of setting elements 6 along the radial setting of body 1 respectively, for example screw, bolt etc. to keep the position of first spacing sleeve 3 and second spacing sleeve 4, guarantee first spacing sleeve 3 and second spacing sleeve 4 to each push pedal 22's limiting displacement's validity.
As preferred, the utility model provides a casing coupling positioning tool, wherein, recess 11 is equipped with four, and the bullet is pressed subassembly 2 and is equipped with four groups, and the elastic element 21 that every group bullet pressed subassembly 2 includes four pressure springs, can guarantee the technical effect of the utility model, it is nevertheless to explain that, above-mentioned each quantity only does the utility model discloses a preferred embodiment, the utility model discloses do not use this as the limit, wherein the rigidity of pressure spring is big more, then the sleeve pipe gross weight is undulant big more.
Preferably, as shown in fig. 1, the utility model provides a casing collar positioning tool, wherein, the first end of body 1 is equipped with female adapter 12, and the second end of body 1 is equipped with male adapter 13 for supply to meet with other downhole tools.
Compared with the prior art, the utility model has the advantages as follows:
the utility model is provided with a groove on the body and a spring component in the groove, wherein, the elastic component of the spring component always provides elastic supporting force for the push plate to keep the push plate at the notch of the corresponding groove, and the positioning bulge on each push plate protrudes out of the outer surface of the body; because the distance between the position on the positioning bulge on each push plate, which is farthest away from the bottom of the corresponding groove, and the axis of the body is larger than the radius of the sleeve, when the utility model is placed in the sleeve, each positioning bulge and each push plate move towards the direction close to the bottom of the corresponding groove under the action of the inner wall of the sleeve; because the joint between every two pipe bodies of the sleeve is provided with a gap, when the positioning bulge reaches the gap between every two pipe bodies in the process of axial movement of the sleeve, the utility model is not limited by the inner wall of the sleeve, under the pushing of the elastic element, the push plate and the positioning bulge can move towards the direction far away from the bottom of the corresponding groove, and the positioning bulge is inserted into the gap of the joint between the two pipe bodies, at the moment, the utility model can continue to move along the axial direction of the sleeve by applying larger external force, so that the suspended weight of the sleeve changes once, and the working personnel can determine the number of the pipe bodies according to the fluctuation times of the suspended weight of the sleeve, thereby accurately finding the position to be split of the sleeve and the coupling at the position to be split, so that the working personnel can operate the coupling at the position to be split, the effect of accurately taking and replacing the sleeve is achieved.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (10)
1. A casing collar positioning tool is characterized by comprising a tubular body, a plurality of grooves are uniformly arranged on the outer surface of the body at intervals along the circumferential direction of the body in a concave mode, a group of elastic components are arranged in each groove and comprise an elastic element and a push plate, the push plates are arranged in the corresponding grooves in a limiting mode and can move in a reciprocating mode along the radial direction of the body, the elastic elements are arranged between the corresponding push plates and the bottoms of the corresponding grooves, positioning protrusions are arranged on the surface, facing the outer portions of the corresponding grooves, of each push plate in a protruding mode and located at the same position of the body in the axial direction, each elastic element can elastically push the corresponding push plate to enable each positioning protrusion to protrude out of the outer surface of the body, and under the state that each push plate is positioned at the position farthest from the corresponding groove bottom of the groove, the distance between the position farthest from the corresponding groove bottom of the groove on the positioning bulge on each push plate and the axis of the body is larger than the radius of the sleeve.
2. The casing collar locating tool of claim 1, wherein the groove is a strip-shaped groove extending in an axial direction of the body, and each of the push plates is a strip-shaped plate matching a notch shape of the groove.
3. The casing collar positioning tool of claim 1 or 2, wherein the elastic element comprises at least two compression springs arranged at intervals in the axial direction of the body, one end of each compression spring is connected with the corresponding push plate, the other end of each compression spring is connected with the groove bottom of the corresponding groove, and each compression spring is arranged between the corresponding push plate and the groove bottom of the corresponding groove in a compressed state.
4. The casing collar positioning tool of claim 3, wherein each of the compression springs is mounted between the corresponding push plate and the corresponding groove bottom of the groove in a compressed state, and the compression amount of each of the compression springs is 5% to 20% of the original length of the compression spring.
5. The casing collar positioning tool of claim 2, wherein the positioning protrusion is a raised strip extending along a width direction of the strip-shaped plate, the positioning protrusion has a first inclined surface facing a direction of the first end of the body and a second inclined surface facing a direction of the second end of the body, a distance between the first inclined surface and the strip-shaped plate gradually increases and a distance between the second inclined surface and the strip-shaped plate gradually decreases along a direction from the first end of the body to the second end of the body, and an intersection of the first inclined surface and the second inclined surface is a position on the positioning protrusion farthest from a bottom of the groove corresponding to the distance.
6. A casing collar locating tool as claimed in claim 1 or claim 2 wherein each said push plate is retained in a respective said recess by a retaining assembly, the limiting assembly comprises a first limiting sleeve and a second limiting sleeve, the first limiting sleeve and the second limiting sleeve are sleeved on the body, the first limiting sleeve is arranged close to the first end of the body, the second limiting sleeve is arranged close to the second end of the body, the first limiting sleeve blocks and limits the end part of each push plate close to the first end of the body at the position of the notch of each groove close to the first end of the body, the second limiting sleeve blocks and limits the end part of each push plate close to the second end of the body at the position, close to the second end of the body, of the notch of each groove.
7. The casing collar locating tool of claim 6, wherein a sealing sleeve is disposed between the first stop sleeve and the body and between the second stop sleeve and the body, respectively.
8. The casing collar positioning tool of claim 6, wherein the first and second stop collars are each positioned to engage the body by a plurality of positioning elements disposed radially of the body.
9. The casing collar locating tool of claim 3, wherein there are four of the grooves, four of the biasing assemblies are provided, and the resilient element of each of the biasing assemblies comprises four of the compression springs.
10. A casing collar locating tool as claimed in claim 1 or claim 2 wherein the first end of the body is provided with a female connector and the second end of the body is provided with a male connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141061.0U CN211851827U (en) | 2020-01-21 | 2020-01-21 | Casing coupling positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141061.0U CN211851827U (en) | 2020-01-21 | 2020-01-21 | Casing coupling positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851827U true CN211851827U (en) | 2020-11-03 |
Family
ID=73233357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020141061.0U Active CN211851827U (en) | 2020-01-21 | 2020-01-21 | Casing coupling positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851827U (en) |
-
2020
- 2020-01-21 CN CN202020141061.0U patent/CN211851827U/en active Active
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