CN211924072U - Unidirectional torque transmission locking nipple of underground azimuth orienting tool - Google Patents
Unidirectional torque transmission locking nipple of underground azimuth orienting tool Download PDFInfo
- Publication number
- CN211924072U CN211924072U CN202020579101.XU CN202020579101U CN211924072U CN 211924072 U CN211924072 U CN 211924072U CN 202020579101 U CN202020579101 U CN 202020579101U CN 211924072 U CN211924072 U CN 211924072U
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- output shaft
- locking
- torque transmission
- nipple
- fixed joint
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 210000002445 nipple Anatomy 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 15
- 239000003921 oil Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 102100036850 C-C motif chemokine 23 Human genes 0.000 description 2
- 101000713081 Homo sapiens C-C motif chemokine 23 Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model relates to an one-way biography is turned round locking nipple joint, concretely relates to one-way biography of directional instrument in pit is turned round locking nipple joint. The hydraulic cylinder is composed of an outer cylinder body, a fixed joint, an output shaft, a hollow shaft and an annular hydraulic cylinder, wherein the output shaft is movably arranged in a lower port of the outer cylinder body, the fixed joint is arranged above the output shaft, and the hollow shaft is arranged in the output shaft below the fixed joint. The unidirectional torque transmission locking nipple can control unidirectional rotation of the angle of the tool face, and after the tool face reaches a preset tool face, the tool face is locked through the locking mechanism and preparation is made for next orientation. Compared with the same type of devices, the unidirectional torque transmission locking nipple can only rotate towards the first direction and transmit torque, can only rotate towards the second direction but can not transmit torque, and can continuously rotate the tool face angle so as to effectively control the drilling direction of the coiled tubing and the track of a well hole; the fishtail positioning device has the characteristics of simple structure, high operability, no need of tripping during orientation and capability of eliminating fishtail phenomenon.
Description
Technical Field
The utility model relates to an one-way biography is turned round locking nipple joint, concretely relates to one-way biography of directional instrument in pit is turned round locking nipple joint.
Background
The coiled tubing drilling technology is one of the current internationally more advanced drilling technologies, the coiled tubing drilling azimuth director is a core tool in the coiled tubing drilling process, and the underground azimuth director has the characteristics of higher orientation precision, high output torque, no limitation of the type of drilling fluid, no need of tripping for adjusting the tool surface and reliable control of the drilling direction of the coiled tubing and the track of a borehole.
At present, the connection torque transmission device has more types, which are mainly divided into 3 types: the 1 st type is a pin or a key for transmitting torque and is in threaded connection, and the device has a simple structure and small torque transmission moment; the 2 nd type adopts end tooth to transmit torque and carries out self-centering, and the center pull rod is connected, and the moment of torsion that this structure transmitted is big, and the centering is accurate, but the part machining precision is high, and the material requires highly, and the processing cost is high, and the assembly needs special pulling force machine, and the assembly is complicated also with high costs. The 3 rd type is spline torque transmission, tooth flank centering and threaded connection, the structure can transmit larger torque, the cost is relatively low, but an axial connection structure needs to be designed, the device comprises a plurality of parts, the structure is complex, the assembly and the disassembly are complex, and the operability is not high.
Disclosure of Invention
The utility model aims to provide a: the unidirectional torque transmission locking nipple of the underground azimuth orienting tool is simple in structure and high in operability, can rotate and transmit torque only in the first direction during working, can rotate but cannot transmit torque only in the second direction, can continuously rotate the angle of the tool face, and can lock the tool face when the angle of the tool face meets the requirement so as to effectively control the drilling direction of a coiled tubing and the track of a well hole.
The technical scheme of the utility model is that:
the utility model provides a directional biography of directional instrument in pit is turned round and is locked nipple joint, it comprises outer barrel, fixed joint, output shaft, hollow shaft and annular hydraulic cylinder, its characterized in that: an output shaft is movably arranged in the lower port of the outer cylinder body, a fixed joint is arranged above the output shaft, a hollow shaft is arranged in the output shaft below the fixed joint, and an overrunning clutch is arranged between the hollow shaft and the output shaft through a thrust bearing; one end of the hollow shaft penetrates through the fixed joint and extends to the position above the fixed joint; an annular hydraulic cylinder is arranged between the output shaft and the outer cylinder, a locking sliding block is arranged at the end of a piston rod of the annular hydraulic cylinder, a locking fixing block is fixedly arranged on the outer surface of the output shaft corresponding to the locking sliding block, and the locking sliding block is movably connected with the locking fixing block.
The overrunning clutch is respectively and fixedly connected with the output shaft and the hollow shaft.
Through holes are uniformly distributed on the circumference of the hollow shaft extending to the upper part of the fixed joint.
The locking sliding and locking fixing blocks are respectively annular bodies, the inner surface of the locking sliding and the outer surface of the locking fixing block are respectively provided with a key groove and key teeth correspondingly, and the locking sliding block is in sliding connection with the locking fixing block through the matching of the key groove and the key teeth.
The inner wall of the outer barrel body corresponding to the locking sliding block is provided with a sliding groove, and the locking sliding block is connected with the inner wall of the outer barrel body in a sliding mode through the sliding groove.
The output shaft be the siphonozooid, be provided with the assembly annular on the output shaft circumference, be provided with the connecting pin on the outer barrel, through the cooperation sliding connection of assembly annular and connecting pin between output shaft and the outer barrel.
And a wear-resistant gasket is arranged between the output shaft and the outer cylinder.
And a sealing ring is arranged between the outer cylinder and the fixed joint, and an oil duct is arranged on the fixed joint.
Compared with the prior art, the utility model beneficial effect lie in:
the utility model discloses can control the unidirectional rotation of instrument face angle, after reacing predetermined instrument face, through locking mechanism locking instrument face, prepare for next orientation simultaneously. Compared with the devices of the same type, the utility model can only rotate and transmit the torque to the first direction, can only rotate but can not transmit the torque to the second direction, and can continuously rotate the tool face angle so as to effectively control the drilling direction and the well track of the coiled tubing; the fishtail positioning device has the characteristics of simple structure, high operability, no need of tripping during orientation and capability of eliminating fishtail phenomenon.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises an outer barrel, 2, a fixed joint, 3, an output shaft, 4, a hollow shaft, 5, an annular hydraulic cylinder, 6, a connecting pin, 7, a thrust bearing, 8, an overrunning clutch, 9, a locking sliding block, 10, a return spring, 11, a locking fixed block, 12, an oil duct, 13 and a through hole.
Detailed Description
The unidirectional torque transmission locking short section of the underground azimuth orienting tool comprises an outer barrel body 1, a fixed joint 2, an output shaft 3, a hollow shaft 4 and an annular hydraulic cylinder 5, wherein the output shaft 3 is movably mounted in a lower port of the outer barrel body 1, the output shaft 3 is a tubular body, an assembly ring groove is formed in the circumference of the output shaft 3, a connecting pin 6 is arranged on the outer barrel body 1, the output shaft 3 is in sliding connection with the outer barrel body 1 through the assembly ring groove and the connecting pin 6, and a wear-resistant gasket is arranged between the output shaft 3 and the outer barrel body 1 so as to reduce the wear between the output shaft 3 and the outer barrel body.
The output shaft 3 is a reducing tubular body, a fixed joint 2 is arranged above the output shaft 3, a hollow shaft 4 is arranged in the output shaft 3 below the fixed joint 2, and one end of the hollow shaft 4 penetrates through the fixed joint 2 and extends to the position above the fixed joint 2; through holes 9 are uniformly distributed on the circumference of the hollow shaft 4 extending to the upper part of the fixed joint 2.
A one-way torque transmission mechanism is arranged between the output shaft 3 and the hollow shaft 4, and consists of a plurality of overrunning clutches 8, wherein the overrunning clutches are commercially available CKB8 type wedge overrunning clutches which consist of an inner ring, an outer ring, wedges and springs, when the outer ring of the CKB8 type wedge overrunning clutch is driven (anticlockwise rotation), the overrunning clutches are engaged, when the overrunning clutches overrun, when the inner ring is driven (clockwise rotation), the overrunning clutches are engaged, and when the overrunning clutches overrun. A plurality of overrunning clutches 8 are arranged in an axial direction of the hollow shaft 4, thrust bearings 7 are arranged on the hollow shaft 4 at the upper end and the lower end of the one-way torque transmission mechanism, the overrunning clutches 8 are respectively and fixedly connected with the output shaft 3 and the hollow shaft 4, namely, the hollow shaft 4 is connected with an inner ring of the overrunning clutch 8 through a spline, and the output shaft 3 is connected with an outer ring of the overrunning clutch 8 through a spline. When the output shaft mechanism works, the output shaft 3 can be driven to rotate circumferentially along one direction only through the one-way torque transmission mechanism under the action of the hollow shaft 4.
An annular hydraulic cylinder 5 is arranged between the output shaft 3 and the outer cylinder 1, a return spring 10 is arranged on a piston rod of the annular hydraulic cylinder 5, a locking sliding block 9 is arranged at the end of the piston rod of the annular hydraulic cylinder 5, a locking fixing block 11 is fixedly arranged on the outer surface of the output shaft 3 corresponding to the locking sliding block 9, the locking sliding block 9 and the locking fixing block 11 are respectively annular bodies, a key groove and key teeth are correspondingly arranged on the inner surface of the locking sliding block 9 and the outer surface of the locking fixing block 11 respectively, and the locking sliding block 9 is in sliding connection with the locking fixing block 11 through the matching of the. The inner wall of the outer barrel body 1 corresponding to the locking sliding block 9 is provided with a sliding groove, and the locking sliding block 9 is connected with the inner wall of the outer barrel body 1 in a sliding mode through the sliding groove. The locking sliding block 9 and the locking fixing block 11 form a locking mechanism of the unidirectional torque transmission locking short section.
A sealing ring is arranged between an outer cylinder body 1 and a fixed joint 2 of the unidirectional torque transmission locking short section, and an oil duct 12 is arranged on the fixed joint 2.
The unidirectional torque transmission locking short section is matched with the power short section and the double-screw transmission short section to form an underground orientation tool, and during assembly, the power short section, the double-screw transmission short section and the unidirectional torque transmission locking short section are sequentially in threaded connection; meanwhile, the hollow shaft 4 is connected with an output screw of the double-helix transmission nipple, and an oil inlet and an oil return hole of the annular hydraulic cylinder 5 are communicated with an oil tank of the power nipple and a screw pump through a communicating pipe through an oil duct 12. Under the normal condition, orientation tool in pit, install on the coiled tubing, the during operation drilling fluid is by the coiled tubing entry power nipple joint, get into this one-way biography turns round locking nipple joint behind the double-screw drive nipple joint in, after the drilling fluid gets into this one-way biography turns round locking nipple joint, fixed joint 2 forms the shutoff to outer barrel 1, and drilling fluid gets into hollow shaft 4 by through-hole 13, is carrying out normal drilling on final effect to the drill bit through output shaft 3, and locking slip 9 and locking fixed block 11 this moment keep the lock state.
When the well drilling process needs to be rotated and oriented, firstly, the underground motor of the power nipple is powered through the cable, the underground motor drives the underground screw pump to work through the coupler, and therefore hydraulic oil in the oil tank is pumped into the hydraulic cylinder and the annular hydraulic cylinder 5. After hydraulic oil enters the hydraulic cylinder of the power nipple, the driving piston moves downwards, so that the hollow shaft 4 is driven to rotate through the output screw rod of the double-helix transmission nipple, in the process, the hydraulic oil enters the oil cavity of the annular hydraulic cylinder 5, the piston rod of the annular hydraulic cylinder 5 is pushed to move downwards, the locking sliding block 9 is pushed to move downwards, and the locking sliding block 9 is gradually separated from the meshing state with the locking fixing block 11. After the locking slide 9 is disengaged from the locking fixed block 11, the locking state of the output shaft 3 is released, and the hollow shaft 4 is rotated and simultaneously the hollow shaft 4 is combined with the output shaft 3 through the overrunning clutch 8, so that the output shaft 3 is driven to rotate according to a set angle, and the unidirectional rotation of the tool face angle is controlled through the output shaft 3.
When the tool face is rotated in one direction to a set angle, the cable power supply is cut off, the power nipple does not work any more, and the underground screw pump stops pumping oil. At the moment, the piston rod of the annular hydraulic cylinder 5 is reset under the action of the return spring 10; because the one-way torque transmission mechanism is arranged between the hollow shaft 4 and the output shaft 3, the output shaft 3 does not rotate when the hollow shaft 4 rotates reversely. In the process of resetting the piston rod of the annular hydraulic cylinder 5 under the action of the return spring 10; and after the piston rod of the annular hydraulic cylinder 5 drives the locking slide 9 and the locking fixing block 11 to form an occluded state again, the rotating angle of the output shaft 3 is locked.
The unidirectional torque transmission locking nipple can control unidirectional rotation of the angle of the tool face, and after the tool face reaches a preset tool face, the tool face is locked through the locking mechanism and preparation is made for next orientation. Compared with the same type of devices, the unidirectional torque transmission locking nipple can only rotate towards the first direction and transmit torque, can only rotate towards the second direction but can not transmit torque, and can continuously rotate the tool face angle so as to effectively control the drilling direction of the coiled tubing and the track of a well hole; the fishtail positioning device has the characteristics of simple structure, high operability, no need of tripping during orientation and capability of eliminating fishtail phenomenon.
Claims (8)
1. The utility model provides a directional biography of directional instrument in pit is turned round and is locked nipple joint, it comprises outer barrel (1), fixed joint (2), output shaft (3), hollow shaft (4) and annular hydraulic cylinder (5), its characterized in that: an output shaft (3) is movably arranged in a lower port of the outer barrel (1), a fixed joint (2) is arranged above the output shaft (3), a hollow shaft (4) is arranged in the output shaft (3) below the fixed joint (2), and an overrunning clutch (8) is arranged between the hollow shaft (4) and the output shaft (3) through a thrust bearing (7); one end of the hollow shaft (4) penetrates through the fixed joint (2) and extends to the position above the fixed joint (2); an annular hydraulic cylinder (5) is arranged between the output shaft (3) and the outer cylinder (1), a locking sliding block (9) is arranged at the end of a piston rod of the annular hydraulic cylinder (5), a locking fixing block (11) is fixedly arranged on the outer surface of the output shaft (3) corresponding to the locking sliding block (9), and the locking sliding block (9) is movably connected with the locking fixing block (11).
2. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 1, characterized in that: the overrunning clutch (8) is respectively and fixedly connected with the output shaft (3) and the hollow shaft (4).
3. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 1, characterized in that: through holes (13) are uniformly distributed on the circumference of the hollow shaft (4) extending to the upper part of the fixed joint (2).
4. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 1, characterized in that: the locking sliding block (9) and the locking fixing block (11) are annular bodies respectively, a key groove and key teeth are correspondingly arranged on the inner surface of the locking sliding block (9) and the outer surface of the locking fixing block (11) respectively, and the locking sliding block (9) is in sliding connection with the locking fixing block (11) through the matching of the key groove and the key teeth.
5. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 4, wherein: the inner wall of the outer barrel body (1) corresponding to the locking sliding block (9) is provided with a sliding groove, and the locking sliding block (9) is connected with the inner wall of the outer barrel body (1) in a sliding mode through the sliding groove.
6. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 1, characterized in that: the output shaft (3) be the siphonozooid, be provided with the assembly annular on output shaft (3) circumference, be provided with connecting pin (6) on outer barrel (1), through the cooperation sliding connection of assembly annular and connecting pin (6) between output shaft (3) and outer barrel (1).
7. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 6, wherein: and a wear-resistant gasket is arranged between the output shaft (3) and the outer cylinder body (1).
8. The unidirectional torque transmission locking nipple of the downhole azimuth orienting tool according to claim 1, characterized in that: a sealing ring is arranged between the outer cylinder body (1) and the fixed joint (2), and an oil duct (12) is arranged on the fixed joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020579101.XU CN211924072U (en) | 2020-04-17 | 2020-04-17 | Unidirectional torque transmission locking nipple of underground azimuth orienting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020579101.XU CN211924072U (en) | 2020-04-17 | 2020-04-17 | Unidirectional torque transmission locking nipple of underground azimuth orienting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924072U true CN211924072U (en) | 2020-11-13 |
Family
ID=73328374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020579101.XU Expired - Fee Related CN211924072U (en) | 2020-04-17 | 2020-04-17 | Unidirectional torque transmission locking nipple of underground azimuth orienting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924072U (en) |
-
2020
- 2020-04-17 CN CN202020579101.XU patent/CN211924072U/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: 20201113 |