CN204457478U - Drilling safety joint - Google Patents
Drilling safety joint Download PDFInfo
- Publication number
- CN204457478U CN204457478U CN201520102031.8U CN201520102031U CN204457478U CN 204457478 U CN204457478 U CN 204457478U CN 201520102031 U CN201520102031 U CN 201520102031U CN 204457478 U CN204457478 U CN 204457478U
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- China
- Prior art keywords
- safe
- boring
- brill
- shell
- fixed cover
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Abstract
The utility model relates to the instrument in the construction of a kind of oil drilling, drilling tool being disconnected safely, it is a kind of drilling safety joint, it comprises with the safe upper shell of brill, with the safe lower shell of brill, safe fixed cover, shear sheath nail and the anti-pawl in upper body, be arranged on in the safe lower shell of brill with the safe upper shell of brill by spline, safe fixed cover follows closely by shearing sheath the lower inside be fixed on boring safe upper shell, the anti-pawl in upper body is circumferentially being intervally distributed with the bottom of boring safe upper shell, in upper body, the outside of anti-pawl is integrally fixed with spacing claw, draw-in groove is had with boring on safe lower shell corresponding with spacing claw, spacing claw is clamped in draw-in groove by safe fixed cover.The utility model reasonable and compact in structure, easy to use, its structure design is safe and reliable, can be disconnected safely by drilling tool fast, can effectively prevent stratum man-made further destroy, for accident treatment and construction are laid a good foundation next time.
Description
Technical field
the utility model relates to the instrument in the construction of a kind of oil drilling, drilling tool being disconnected safely, is a kind of drilling safety joint.
Background technology
at present, in oil drilling construction, often run into formation collapse or other reasons and cause bit freezing, must unfreezing operation be carried out.When all unfreezing schemes are all unsuccessful, drilling tool need be disconnected.In prior art, drilling tool disconnects by normal explosive manner or the water conservancy cutting mode of adopting, and these two kinds of mode costs of investment are high, and engineering quantity is great, and construction formation man-made further destroy degree is serious.
Summary of the invention
the utility model provides a kind of drilling safety joint, overcomes the deficiency of above-mentioned prior art, and it is high that it effectively can solve drilling tool disconnection process hazard coefficient, and complicated operation, delays construction speed, and causes the problem of stratum man-made further destroy.
the technical solution of the utility model is realized by following measures: a kind of drilling safety joint, comprise with the safe upper shell of brill, with the safe lower shell of brill, safe fixed cover, shear sheath nail and the anti-pawl in upper body, be arranged on in the safe lower shell of brill with the safe upper shell of brill by spline, safe fixed cover follows closely by shearing sheath the lower inside be fixed on boring safe upper shell, the anti-pawl in upper body is circumferentially being intervally distributed with the bottom of boring safe upper shell, in upper body, the outside of anti-pawl is integrally fixed with spacing claw, draw-in groove is had with boring on safe lower shell corresponding with spacing claw, spacing claw is clamped in draw-in groove by safe fixed cover.
here is the further optimization and/or improvements to foregoing invention technical scheme:
above-mentioned drilling safety joint, corresponding sheath of shearing is followed closely the upper and lower of the safe fixed cover of position and is equipped with sealing ring with boring between safe upper shell.
above-mentioned drilling safety joint, is provided with sealing ring with boring between the top of safe lower shell and safe fixed cover bottom.
above-mentioned drilling safety joint, the quantity shearing sheath nail is at least two, and circumferentially at the middle part with the safe upper shell of brill.
above-mentioned drilling safety joint, is integrally fixed with the inner convex platform that diameter is less than safe fixed cover external diameter in the inner side with the safe lower shell of brill.
above-mentioned drilling safety joint, is provided with internal thread with the upper inner of boring safe upper shell, is provided with external screw thread with the lower outside boring safe lower shell.
the utility model reasonable and compact in structure, easy to use, its structure design is safe and reliable, can be disconnected safely by drilling tool fast, can effectively prevent stratum man-made further destroy, for accident treatment and construction are laid a good foundation next time.
Accompanying drawing explanation
accompanying drawing 1 is the front sectional view of the utility model most preferred embodiment.
accompanying drawing 2 is that the A-A of accompanying drawing 1 is to sectional view.
coding in accompanying drawing is respectively: 1 is with the safe upper shell of brill, and 2 is that 3 is safe fixed cover, and 4 is steel ball with the safe lower shell of brill, 5 for shearing sheath nail, and 6 is the anti-pawl in upper body, and 7 is chamber, safe fixed cover whereabouts, and 8 is inner convex platform, 9 is sealing ring, and 10 is internal thread, and 11 is external screw thread, and 12 is spacing claw.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as accompanying drawing 1, shown in 2, this drilling safety joint comprises with the safe upper shell 1 of brill, with the safe lower shell 2 of brill, safe fixed cover 3, shear sheath nail 5 and the anti-pawl 6 in upper body, be arranged on in the safe lower shell 2 of brill with the safe upper shell 1 of brill by spline, safe fixed cover 3 is fixed on the lower inside with boring safe upper shell 1 by shearing sheath nail 5, the anti-pawl 6 in upper body is circumferentially being intervally distributed with the bottom of boring safe upper shell 1, in upper body, the outside of anti-pawl is integrally fixed with spacing claw 12, draw-in groove 8 is had with boring on safe lower shell 2 corresponding with spacing claw 12, spacing claw 12 is clamped in draw-in groove by safe fixed cover 3.According to demand, when drilling tool needs safety to disconnect, drilling safety joint is threaded connection and is fixed together with drilling tool; Drop into steel ball 4 from drilling tool upper port, steel ball 4 falls into the suitable for reading of safe fixed cover 3, and under pressure, steel ball 4 promotes to cut off shear pin 5 while safe fixed cover 3 moves down, and causes safe fixed cover 3 and steel ball 4 to be fallen in chamber, safe fixed cover whereabouts 7.Now the inner side of spacing claw 12 is just without the pressure that safe fixed cover 3 supports laterally, the anti-pawl 6 in upper body be provided with can inwardly elasticity recover elastic force.Under the pulling force effect that drilling tool continues upwards, the anti-pawl 6 in upper body is elastic deformation inwardly, finally causes with the safe upper shell 1 of brill and disconnects safely with boring safe lower shell 2.
according to actual needs, above-mentioned drilling safety joint can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, corresponding sheath of shearing is followed closely the upper and lower of the safe fixed cover 3 of 5 positions and is respectively equipped with sealing ring 9 with boring between safe upper shell 1.Good sealing can be made it have like this, and be convenient to build the pressure and cut off shear pin 5.
as shown in accompanying drawing 1,2, sealing ring 9 can be provided with boring between the top of safe lower shell 2 and safe fixed cover 3 bottom.Good sealing can be made it have like this, and be convenient to build the pressure and cut off shear pin.
as shown in accompanying drawing 1,2, the quantity shearing sheath nail 5 at least can be two, and circumferentially at the middle part with the safe upper shell 1 of brill.Its uniform force can be made while maintenance shear strength like this, contribute to extending its application life.
as shown in accompanying drawing 1,2, be integrally fixed with the inner convex platform 8 that diameter is less than safe fixed cover 3 external diameter in the inner side with the safe lower shell 2 of brill.In use procedure, safe fixed cover 3 falls to boring in the chamber, whereabouts 7 of safe lower shell inside, finally drops down onto on inner convex platform 8, and inner convex platform 8 plays a part to support.
as shown in accompanying drawing 1,2, be provided with internal thread 10 with the upper inner of boring safe upper shell 1, be provided with external screw thread 11 with the lower outside boring safe lower shell 2.When mounted, adopt thread connecting mode more convenient, directly can fix, not need other carrying implement drilling safety joint and drilling tool to be linked together.With boring the inner side of safe upper shell 1 and also can being fixed together by welding manner with drilling tool with the lower outside boring safe lower shell 2.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a drilling safety joint, it is characterized in that comprising with the safe upper shell of brill, with the safe lower shell of brill, safe fixed cover, shear sheath nail and the anti-pawl in upper body, be arranged on in the safe lower shell of brill with the safe upper shell of brill by spline, safe fixed cover follows closely by shearing sheath the lower inside be fixed on boring safe upper shell, the anti-pawl in upper body is circumferentially being intervally distributed with the bottom of boring safe upper shell, in upper body, the outside of anti-pawl is integrally fixed with spacing claw, draw-in groove is had with boring on safe lower shell corresponding with spacing claw, spacing claw is clamped in draw-in groove by safe fixed cover.
2. drilling safety joint according to claim 1, is characterized in that corresponding sheath of shearing is followed closely the upper and lower of the safe fixed cover of position and is equipped with sealing ring with boring between safe upper shell.
3. drilling safety joint according to claim 1 and 2, is characterized in that being provided with sealing ring with boring between the top of safe lower shell and safe fixed cover bottom.
4. drilling safety joint according to claim 1 and 2, is characterized in that the quantity shearing sheath nail is at least two, and circumferentially at the middle part with the safe upper shell of brill.
5. drilling safety joint according to claim 3, is characterized in that the quantity shearing sheath nail is at least two, and circumferentially at the middle part with the safe upper shell of brill.
6. the drilling safety joint according to claim 1 or 2 or 5, is characterized in that integrally being fixed with boring the inner side of safe lower shell the inner convex platform that diameter is less than safe fixed cover external diameter.
7. drilling safety joint according to claim 3, is characterized in that integrally being fixed with boring the inner side of safe lower shell the inner convex platform that diameter is less than safe fixed cover external diameter.
8. drilling safety joint according to claim 4, is characterized in that integrally being fixed with boring the inner side of safe lower shell the inner convex platform that diameter is less than safe fixed cover external diameter.
9. the drilling safety joint according to claim 1 or 2 or 5 or 7 or 8, is characterized in that the upper inner with boring safe upper shell is provided with internal thread, being provided with external screw thread with the lower outside boring safe lower shell.
10., according to the drilling safety joint described in claim 6, it is characterized in that the upper inner with boring safe upper shell is provided with internal thread, being provided with external screw thread with the lower outside boring safe lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102031.8U CN204457478U (en) | 2015-02-12 | 2015-02-12 | Drilling safety joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102031.8U CN204457478U (en) | 2015-02-12 | 2015-02-12 | Drilling safety joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457478U true CN204457478U (en) | 2015-07-08 |
Family
ID=53664380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102031.8U Expired - Fee Related CN204457478U (en) | 2015-02-12 | 2015-02-12 | Drilling safety joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150472A (en) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | Conjugation tube injected system and operational approach for coal underground gasifying technology |
| CN111561268A (en) * | 2020-06-23 | 2020-08-21 | 北京中天必捷能源技术有限责任公司 | Anti-sticking modularization drill bit |
-
2015
- 2015-02-12 CN CN201520102031.8U patent/CN204457478U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150472A (en) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | Conjugation tube injected system and operational approach for coal underground gasifying technology |
| CN106150472B (en) * | 2016-08-28 | 2019-05-17 | 中为(上海)能源技术有限公司 | Conjugation tube injected system and operating method for coal underground gasifying technology |
| CN111561268A (en) * | 2020-06-23 | 2020-08-21 | 北京中天必捷能源技术有限责任公司 | Anti-sticking modularization drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150708 Termination date: 20210212 |