CN218348179U - Non-coupling direct-connected casing - Google Patents
Non-coupling direct-connected casing Download PDFInfo
- Publication number
- CN218348179U CN218348179U CN202222431078.1U CN202222431078U CN218348179U CN 218348179 U CN218348179 U CN 218348179U CN 202222431078 U CN202222431078 U CN 202222431078U CN 218348179 U CN218348179 U CN 218348179U
- Authority
- CN
- China
- Prior art keywords
- wall
- casing
- annular groove
- groove
- sleeve pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 230000006872 improvement Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a no coupling direct-connected casing pipe, including body, annular groove and sleeve pipe end, the annular groove is seted up on the terminal surface of body one end, sleeve pipe end fixed connection is on the terminal surface of the body other end, the one end that just is located keeping away from the body on the outer wall of sleeve pipe end and the inner wall all is provided with first screw thread, all be provided with the second screw thread on the inside wall of annular groove and the lateral wall, a plurality of device groove has been seted up on the lateral wall of annular groove, the inside in device groove is provided with the chucking subassembly. The utility model discloses a threaded connection and the cooperation of the two kinds of connected modes of joint, structural strength that can effectual improvement bushing department, and through carrying out two sleeve pipes the joint can prevent that the sleeve pipe from taking place to invert when receiving vibrations to can prevent that the sheathed tube junction from taking place not hard up or breaking away from, the effectual structural strength who improves bushing department.
Description
Technical Field
The utility model relates to an oil casing technical field especially relates to no coupling direct-connected casing pipe.
Background
The petroleum casing is a steel pipe used for supporting the wall of a well of an oil well or a gas well so as to ensure the normal operation of the whole oil well after the drilling process and the completion. Each well uses several layers of casing depending on the drilling depth and geological conditions. After the casing is put into the well, cement is adopted for cementing the well, and the casing is different from an oil pipe and a drill rod, cannot be reused and belongs to a disposable consumption material. Therefore, the consumption of the casing accounts for 70% or more of the total oil country tubular goods.
The joint strength of the sleeve joint is required to be guaranteed when the sleeve is connected, so that the joint is stable in connection, otherwise normal work is influenced, the sleeve is connected in the prior art only by adopting a single threaded connection mode, and the sleeve is easily overturned when vibrated in the actual use process, so that the joint of the sleeve is loosened or separated, the joint strength of the sleeve is poor, and the normal work is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a non-coupling direct-connected casing pipe.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is not collar direct-connected type sleeve pipe, including body, annular groove and sleeve pipe end, the annular groove is seted up on the terminal surface of body one end, sleeve pipe end fixed connection is on the terminal surface of the body other end, the one end that just is located to keep away from the body on the outer wall of sleeve pipe end and the inner wall all is provided with first screw thread, all be provided with the second screw thread on the inside wall of annular groove and the lateral wall, a plurality of device groove has been seted up on the lateral wall of annular groove, the inside in device groove is provided with the chucking subassembly, a plurality of chucking hole has been seted up on the outer wall of sleeve pipe end, the annular seal groove has all been seted up to the one end that just is located to be close to the body on the outer wall of sleeve pipe end and the inner wall, the inside of annular seal groove is provided with the sealing washer.
Threaded connection between two sleeve pipes can be realized through the cooperation of first screw thread and second screw thread, and the cooperation through chucking subassembly and chucking hole is used and can be realized two joint between the sleeve pipe, cooperation through two kinds of connected modes of threaded connection and joint, structural strength that can effectual improvement bushing junction, and through carrying out two sleeve pipes the joint and can prevent that the sleeve pipe from taking place to overturn when receiving vibrations, thereby can prevent that sheathed tube junction from taking place not hard up or breaking away from, the effectual structural strength who improves bushing junction.
As a further description of the above technical solution:
the clamping assembly comprises an extrusion spring fixedly connected to the inner wall of the device groove, the other end of the extrusion spring is fixedly connected with a sliding block, one side of the sliding block, far away from the extrusion spring, of a clamping block fixedly connected with, one side of the clamping block is provided with an inclined plane, and when the clamping block is extruded by the end of the sleeve pipe, the clamping block can be arranged on the inclined plane to decompose extrusion force, so that the clamping block receives acting force in the vertical direction, the clamping block can retract to the device groove conveniently, and the end of the sleeve pipe can be inserted into the annular groove conveniently.
As a further description of the above technical solution:
the sliding block is connected between two sides of the inner wall of the device groove in a sliding mode.
As a further description of the above technical solution:
the clamping block is matched with the clamping hole.
As a further description of the above technical solution:
the pipe body and the end of the sleeve are of an integrated structure.
As a further description of the above technical solution:
the first thread and the second thread are adapted.
The utility model discloses following beneficial effect has:
compared with the prior art, this no coupling direct-connected type sleeve pipe, threaded connection between two sleeve pipes can be realized through the cooperation of first screw thread and second screw thread, and the cooperation through chucking subassembly and chucking hole is used and can be realized two joint between the sleeve pipe, cooperation through two kinds of connected modes of threaded connection and joint, structural strength that can effectual improvement box coupling department, and can prevent to take place to invert when the sleeve pipe receives vibrations through carrying out the joint with two sleeve pipes, thereby can prevent that sheathed tube junction from taking place not hard up or breaking away from, the effectual structural strength who improves box coupling department.
Drawings
Fig. 1 is a schematic view of the overall structure of the joint-less direct-connected casing according to the present invention;
fig. 2 is a sectional perspective view of the pipe body of the joint-free direct-connected casing pipe provided by the present invention;
fig. 3 is a schematic connection diagram of two non-coupling direct-connected casings of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
Illustration of the drawings:
1. a tube body; 2. an annular groove; 3. a sleeve end; 4. a first thread; 5. a second thread; 6. a device slot; 7. a clamping hole; 8. an annular seal groove; 9. a seal ring; 10. a compression spring; 11. a slider; 12. a clamping block; 13. a bevel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the utility model provides a no coupling direct-connected casing pipe: including body 1, annular groove 2 and sleeve pipe end 3, body 1 and sleeve pipe end 3 structure as an organic whole, annular groove 2 sets up on the terminal surface of 1 one end of body, 3 fixed connection of sleeve pipe end are on the terminal surface of the 1 other end of body, the one end that just is located and keeps away from body 1 on the outer wall of sleeve pipe end 3 and the inner wall all is provided with first screw thread 4, all be provided with second screw thread 5 on the inside wall of annular groove 2 and the lateral wall, first screw thread 4 and 5 looks adaptations of second screw thread, a plurality of device groove 6 has been seted up on the lateral wall of annular groove 2, the inside in device groove 6 is provided with the chucking subassembly, a plurality of chucking hole 7 has been seted up on the outer wall of sleeve pipe end 3, annular seal groove 8 has all been seted up to the one end that just is located and is close to body 1 on the outer wall of sleeve pipe end 3 and the inner wall, the inside of annular seal groove 8 is provided with sealing washer 9, can play certain sealed effect to the junction between two sleeves through setting up of sealing washer 9.
The chucking subassembly includes fixed connection in the extrusion spring 10 on the device groove 6 inner wall, and the other end fixedly connected with slider 11 of extrusion spring 10, slider 11 sliding connection between the both sides of device groove 6 inner wall, and one side fixedly connected with chucking piece 12 of extrusion spring 10 is kept away from to slider 11, and chucking piece 12 and chucking hole 7 looks adaptation, one side of chucking piece 12 are provided with inclined plane 13.
The working principle is as follows: when in use, when two sleeves are required to be connected, the sleeve end 3 fixedly connected with one end of the sleeve body 1 is inserted into the annular groove 2 on the other sleeve body 1, and the threaded connection between the two sleeves is realized through the matching of the first thread 4 and the second thread 5, and in the installation process, the sleeve end 3 is abutted against and extruded by the clamping block 12, the extrusion force borne by the clamping block 12 can be decomposed through the inclined surface 13 arranged on the clamping block 12, so that the clamping block 12 bears a part of action force in the vertical direction, the clamping block 12 is further moved towards the inside of the device groove 6 and extrudes the extrusion spring 10, after the sleeve end 3 is inserted into the annular groove 2 to a proper depth, the elasticity effect through extrusion spring 10 extrudes chucking piece 12 and imbeds in chucking hole 7, thereby carry out the joint with two sleeve pipes, cooperation through two kinds of connected mode of threaded connection and joint, structural strength that can effectual improvement bushing junction, and can prevent through carrying out two sleeve pipes that the joint from taking place to overturn when the sleeve pipe receives vibrations, thereby can prevent that sheathed tube junction from taking place not hard uply or breaking away from, the effectual structural strength who improves bushing junction, in sleeve pipe end 3 drives sealing washer 9 to annular groove 2 inside male in-process and gets into annular groove 2, can play certain sealed effect to the junction between two sleeve pipes through setting up of sealing washer 9.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. There is not coupling direct-connected casing pipe, including body (1), annular groove (2) and sleeve pipe end (3), annular groove (2) are seted up on the terminal surface of body (1) one end, sleeve pipe end (3) fixed connection is on the terminal surface of the body (1) other end, its characterized in that: the utility model discloses a pipe joint, including casing end (3), ring groove (2), annular groove (3), sealing washer (8), the one end that just is located to keep away from body (1) on the outer wall of casing end (3) and the inner wall all is provided with first screw thread (4), all be provided with second screw thread (5) on the inside wall and the lateral wall of annular groove (2), a plurality of device groove (6) have been seted up on the lateral wall of annular groove (2), the inside in device groove (6) is provided with the chucking subassembly, a plurality of chucking hole (7) have been seted up on the outer wall of casing end (3), ring seal groove (8) have all been seted up to the one end that just is located to be close to body (1) on the outer wall and the inner wall of casing end (3), the inside of ring seal groove (8) is provided with sealing washer (9).
2. The non-coupled direct connect casing of claim 1, wherein: the clamping assembly comprises an extrusion spring (10) fixedly connected to the inner wall of the device groove (6), the other end of the extrusion spring (10) is fixedly connected with a sliding block (11), one side of the sliding block (11) far away from the extrusion spring (10) is fixedly connected with a clamping block (12), and one side of the clamping block (12) is provided with an inclined plane (13).
3. The non-coupled direct connect casing of claim 2, wherein: the sliding block (11) is connected between two sides of the inner wall of the device groove (6) in a sliding mode.
4. The non-coupled direct connect casing of claim 2, wherein: the clamping block (12) is matched with the clamping hole (7).
5. The non-coupling direct connection type casing pipe according to claim 1, wherein: the pipe body (1) and the sleeve end (3) are of an integrated structure.
6. The non-coupled direct connect casing of claim 1, wherein: the first thread (4) and the second thread (5) are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222431078.1U CN218348179U (en) | 2022-09-14 | 2022-09-14 | Non-coupling direct-connected casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222431078.1U CN218348179U (en) | 2022-09-14 | 2022-09-14 | Non-coupling direct-connected casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218348179U true CN218348179U (en) | 2023-01-20 |
Family
ID=84917960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222431078.1U Expired - Fee Related CN218348179U (en) | 2022-09-14 | 2022-09-14 | Non-coupling direct-connected casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218348179U (en) |
-
2022
- 2022-09-14 CN CN202222431078.1U patent/CN218348179U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230120 |