CN202417338U - Oil drill pipe for well repair - Google Patents
Oil drill pipe for well repair Download PDFInfo
- Publication number
- CN202417338U CN202417338U CN2011205658993U CN201120565899U CN202417338U CN 202417338 U CN202417338 U CN 202417338U CN 2011205658993 U CN2011205658993 U CN 2011205658993U CN 201120565899 U CN201120565899 U CN 201120565899U CN 202417338 U CN202417338 U CN 202417338U
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- China
- Prior art keywords
- tool joint
- internal thread
- oil
- oil pipe
- pipe body
- 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
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Abstract
The utility model relates to an oil drill pipe for well repair. The oil drill pipe for well repair is characterized by comprising an oil pipe body (1), a drill rod male joint (2) and a drill rod female joint (3), wherein each of two ends of the oil pipe body (1) is provided with an oil pipe joint (4); the drill rod male joint (2) is connected with the oil pipe joint (4) at the left end of the oil pipe body (1); a torsion-resistant circular bead (8) is arranged at the left end of first internal thread (7) of the drill rod male joint (2); and a torsion-resistant circular bead (8) is arranged at the right end of the first internal thread (7) of the drill rod female joint (3). The structure with the oil pipe body, the drill rod male joint and the drill rod female joint is adopted and the torsion-resistant circular beads are provided, so that the oil drill pipe has the advantages of high tensile strength and torsional strength, quickness and convenience in repeated screwing and unscrewing, no damage to screw threads, simplicity and convenience in maintenance and low cost.
Description
Technical field
When the utility model 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 purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of tensile strength and torsional strength higher, and 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 purpose of the utility model is achieved in that
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 beneficial effect of the utility model is:
The utility model 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 the utility model well workover with oily drilling pipe.
Fig. 2 is the structural representation of the utility model well workover with oily drilling pipe oil pipe body.
Fig. 3 is the structural representation of the utility model well workover with oily drilling pipe fillet of tool joint pins.
Fig. 4 is the structural representation of the utility model well workover with oily drilling pipe tool joint box.
Wherein:
Oil pipe body 1
Fillet of tool joint pins 2
Tool joint box 3
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 utility model 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.
An embodiment of the utility model: 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 |
|---|---|---|---|
| CN2011205658993U CN202417338U (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205658993U CN202417338U (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417338U true CN202417338U (en) | 2012-09-05 |
Family
ID=46742111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205658993U Expired - Fee Related CN202417338U (en) | 2011-12-30 | 2011-12-30 | Oil drill pipe for well repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418482A (en) * | 2011-12-30 | 2012-04-18 | 江阴德玛斯特钻具有限公司 | Oil drill pipe for well repair |
-
2011
- 2011-12-30 CN CN2011205658993U patent/CN202417338U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418482A (en) * | 2011-12-30 | 2012-04-18 | 江阴德玛斯特钻具有限公司 | Oil drill pipe for well repair |
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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 |
Granted publication date: 20120905 Termination date: 20171230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |