CN102418482A - Oil drill pipe for well repair - Google Patents
Oil drill pipe for well repair Download PDFInfo
- Publication number
- CN102418482A CN102418482A CN2011104532193A CN201110453219A CN102418482A CN 102418482 A CN102418482 A CN 102418482A CN 2011104532193 A CN2011104532193 A CN 2011104532193A CN 201110453219 A CN201110453219 A CN 201110453219A CN 102418482 A CN102418482 A CN 102418482A
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- China
- Prior art keywords
- tool joint
- internal thread
- oil
- oil pipe
- pipe body
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Abstract
The invention relates to an oil drill pipe for well repair. The oil drill pipe is characterized by comprising an oil pipe body (1), a drill rod male joint (2) and a drill rod female joint (3); oil pipe joints (4) are arranged at two ends of the oil pipe body (1); the drill rod male joint (2) is connected with the oil pipe joint (4) at the left end of the oil pipe body (1); an anti-torsion circular bead (8) is arranged at the left end of a first internal thread (7) of the drill rod male joint (2); and an anti-torsion circular bead (8) is also arranged at the right end of a first internal thread (7) of the drill rod female joint (3). By adopting the structure of the oil pipe body and the drill rod male and female joints and increasing the anti-torsion circular beads, the oil drill pipe has the advantages of high tensile strength and torsional strength, convenience for repeated assembly and disassembly, no damage to the threads, convenience for maintenance and low cost.
Description
Technical field
When the present invention relates to a kind of well workover, accomplish the oily drilling pipe of operations such as shaft bottom cleaning, pressure break, acidifying, brill match.
Background technology
Underground work according to different requirement, will be accomplished workover treatments such as shaft bottom cleaning, pressure break, acidifying, brill plug during for well workover usually; Usually use 2-7/8 " heavy wall tubing or 2-3/8 " macaroni, 2-7/8 during well workover " the withstand voltage height of heavy wall tubing, but the screw thread torsional strength is poor; and be not suitable for going up repeatedly shackle, go up shackle repeatedly and often cause the screw thread thread gluing to sprain 2-3/8 " tension of macaroni and torsional strength height; Be fit to repeatedly go up the shackle operation, but cost an arm and a leg.Therefore seek a kind of tensile strength and torsional strength higher, it is quick and convenient and do not damage screw thread to go up shackle repeatedly, keeps in repair easyly, lower-cost well workover is particularly important with oily drilling pipe.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of tensile strength and torsional strength higher, it is quick and convenient and do not damage screw thread to go up shackle repeatedly, keeps in repair easyly, and oily drilling pipe is used in lower-cost well workover.
The objective of the invention is to realize like this:
Oily drilling pipe is used in a kind of well workover; It comprises oil pipe body, fillet of tool joint pins and tool joint box, and the two ends of said oil pipe body are equipped with oil connection, and the external surface of said oil connection is provided with first external screw thread; Said fillet of tool joint pins is connected with the oil connection of oil pipe body left end; The left end external surface of said fillet of tool joint pins is provided with second external screw thread, and the right-hand member inner surface of said fillet of tool joint pins is provided with first internal thread, and the first internal thread left end of said fillet of tool joint pins is provided with antitorque shoulder; Said tool joint box is connected with the oil connection of oil pipe body right-hand member; The left end inner surface of said tool joint box also is provided with first internal thread, and said first internal thread and first external screw thread mate each other, and the first internal thread right-hand member of said tool joint box also is provided with antitorque shoulder; The right-hand member inner surface of said tool joint box is provided with second internal thread, and said second internal thread and second external screw thread mate each other.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts the oil pipe body to add the structure of drill pipe box and pin, and has increased antitorque shoulder, makes that oily drilling pipe has tensile strength and torsional strength is higher, and it is quick and convenient and do not damage screw thread to go up shackle repeatedly, keep in repair easy, lower-cost advantage.
Description of drawings
Fig. 1 is the structural representation of well workover of the present invention with oily drilling pipe.
Fig. 2 is the structural representation of well workover of the present invention with oily drilling pipe oil pipe body.
Fig. 3 is the structural representation of well workover of the present invention with oily drilling pipe fillet of tool joint pins.
Fig. 4 is the structural representation of well workover of the present invention with oily drilling pipe tool joint box.
Wherein:
Oil pipe body 1
Fillet of tool joint pins 2
Tool joint box 3
Oil connection 4
First external screw thread 5
Second external screw thread 6
First internal thread 7
Second internal thread 9.
The specific embodiment
Referring to Fig. 1 ~ Fig. 4; Oily drilling pipe is used in a kind of well workover that the present invention relates to; Comprise oil pipe body 1, fillet of tool joint pins 2 and tool joint box 3, the two ends of said oil pipe body 1 are equipped with oil connection 4, and the external surface of said oil connection 4 is provided with first external screw thread 5; Said fillet of tool joint pins 2 is connected with the oil connection 4 of oil pipe body 1 left end; The left end external surface of said fillet of tool joint pins 2 is provided with second external screw thread 6, and the right-hand member inner surface of said fillet of tool joint pins 2 is provided with first internal thread 7, and first internal thread, 7 left ends of said fillet of tool joint pins 2 are provided with antitorque shoulder 8; Said tool joint box 3 is connected with the oil connection 4 of oil pipe body 1 right-hand member; The left end inner surface of said tool joint box 3 also is provided with first internal thread 7, and said first internal thread 7 and first external screw thread 5 mate each other, and first internal thread, 7 right-hand members of said tool joint box 3 also are provided with antitorque shoulder 8; The right-hand member inner surface of said tool joint box 3 is provided with second internal thread 9; Said second internal thread 9 and second external screw thread 6 mate each other, and oil connection 4 end faces of said oil pipe body 1 left end contact with the antitorque shoulder 8 of fillet of tool joint pins 2, and oil connection 4 end faces of said oil pipe body 1 right-hand member contact with the antitorque shoulder 8 of tool joint box 3.
One embodiment of the present of invention: said oil pipe body 1 is 2-7/8 " * 5.51 or 2-7/8 " * 7.01 bodys; Said first external screw thread 5 and first internal thread 7 are API 2-7/8 EU circle button screw thread; Said second external screw thread 6 and second internal thread 9 are according to API standard 7-2; Profile of tooth is V-0.76, and tapering is 1:8, and pitch is 4 tooth/inches.
Shackle is only carried out shackle to fillet of tool joint pins and tool joint box at the scene, only when changing joint, carries out once going up shackle for oil pipe body and drill pipe box and pin.
Adopt this oil pipe body to add the structure of drill pipe box and pin, and increased antitorque shoulder, make oily drilling pipe have the following advantages: tensile strength and torsional strength are higher, and it is quick and convenient and do not damage screw thread to go up shackle repeatedly, keep in repair easyly, and cost is lower.
Claims (2)
1. oily drilling pipe is used in a well workover; It is characterized in that it comprises oil pipe body (1), fillet of tool joint pins (2) and tool joint box (3); The two ends of said oil pipe body (1) are equipped with oil connection (4); The external surface of said oil connection (4) is provided with first external screw thread (5); Said fillet of tool joint pins (2) is connected with the oil connection (4) of oil pipe body (1) left end; The left end external surface of said fillet of tool joint pins (2) is provided with second external screw thread (6), and the right-hand member inner surface of said fillet of tool joint pins (2) is provided with first internal thread (7), and first internal thread (7) left end of said fillet of tool joint pins (2) is provided with antitorque shoulder (8); Said tool joint box (3) is connected with the oil connection (4) of oil pipe body (1) right-hand member; The left end inner surface of said tool joint box (3) also is provided with first internal thread (7), and said first internal thread (7) matees with first external screw thread (5) each other, and first internal thread (7) right-hand member of said tool joint box (3) also is provided with antitorque shoulder (8); The right-hand member inner surface of said tool joint box (3) is provided with second internal thread (9), and said second internal thread (9) matees with second external screw thread (6) each other.
2. oily drilling pipe is used in a kind of well workover according to claim 1; It is characterized in that said oil pipe body (1) is 2-7/8 " * 5.51 or 2-7/8 " * 7.01 bodys; Said first external screw thread (5) and first internal thread (7) are API 2-7/8 EU circle button screw thread; The profile of tooth of said second external screw thread (6) and second internal thread (9) is V-0.76, and tapering is 1:8, and pitch is 4 tooth/inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104532193A CN102418482A (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104532193A CN102418482A (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418482A true CN102418482A (en) | 2012-04-18 |
Family
ID=45943102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104532193A Pending CN102418482A (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418482A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121550A (en) * | 2016-08-29 | 2016-11-16 | 山西风雷钻具有限公司 | Threaded connection drill stem |
| CN109184586A (en) * | 2018-09-19 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | Steel casts double helix extension bar |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539832Y (en) * | 2001-10-27 | 2003-03-12 | 胡振明 | Well repairing drill rod |
| CA2324457C (en) * | 1998-03-19 | 2004-05-25 | Hydril Company | Two-step, low torque wedge thread for tubular connector |
| CN201292780Y (en) * | 2008-11-13 | 2009-08-19 | 煤炭科学研究总院西安研究院 | Big through-hole wind pressure sealing drill rod |
| CN201448065U (en) * | 2009-08-31 | 2010-05-05 | 江阴德玛斯特钻具有限公司 | Double-step integral drill stem |
| CN201786273U (en) * | 2010-09-29 | 2011-04-06 | 中国石油化工股份有限公司 | Skinner's macaroni for non-standard workover |
| CN201835757U (en) * | 2010-10-18 | 2011-05-18 | 中国地质科学院勘探技术研究所 | Aluminum alloy drill stem for geological drilling |
| CN202417338U (en) * | 2011-12-30 | 2012-09-05 | 江阴德玛斯特钻具有限公司 | Oil drill pipe for well repair |
-
2011
- 2011-12-30 CN CN2011104532193A patent/CN102418482A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2324457C (en) * | 1998-03-19 | 2004-05-25 | Hydril Company | Two-step, low torque wedge thread for tubular connector |
| CN2539832Y (en) * | 2001-10-27 | 2003-03-12 | 胡振明 | Well repairing drill rod |
| CN201292780Y (en) * | 2008-11-13 | 2009-08-19 | 煤炭科学研究总院西安研究院 | Big through-hole wind pressure sealing drill rod |
| CN201448065U (en) * | 2009-08-31 | 2010-05-05 | 江阴德玛斯特钻具有限公司 | Double-step integral drill stem |
| CN201786273U (en) * | 2010-09-29 | 2011-04-06 | 中国石油化工股份有限公司 | Skinner's macaroni for non-standard workover |
| CN201835757U (en) * | 2010-10-18 | 2011-05-18 | 中国地质科学院勘探技术研究所 | Aluminum alloy drill stem for geological drilling |
| CN202417338U (en) * | 2011-12-30 | 2012-09-05 | 江阴德玛斯特钻具有限公司 | Oil drill pipe for well repair |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121550A (en) * | 2016-08-29 | 2016-11-16 | 山西风雷钻具有限公司 | Threaded connection drill stem |
| CN109184586A (en) * | 2018-09-19 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | Steel casts double helix extension bar |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |