CN2539832Y - Well repairing drill rod - Google Patents
Well repairing drill rod Download PDFInfo
- Publication number
- CN2539832Y CN2539832Y CN 01269206 CN01269206U CN2539832Y CN 2539832 Y CN2539832 Y CN 2539832Y CN 01269206 CN01269206 CN 01269206 CN 01269206 U CN01269206 U CN 01269206U CN 2539832 Y CN2539832 Y CN 2539832Y
- Authority
- CN
- China
- Prior art keywords
- joint
- drilling
- thread
- drilling rod
- drill
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 38
- 239000003292 glue Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a drilling rod that uses during workover. Workover drill rods currently used in oil fields are all processed, inspected and used according to API SPEC 5D (drilling specifications). The drill pipe joint has the disadvantages that the drill pipe joint has large diameter and cannot pass through a small well opening during well repair, and the joint must be cut off and welded again after being worn, so that the time and the materials are wasted. The utility model discloses a drilling rod is female connection between upper and lower joint and the drilling rod body, bonds with thread locking glue between the screw thread, and wherein the upper joint is the box of internal cone face, and the lower joint is the pin thread of outer conical surface, screw-thread fit between the upper and lower joint. The well repair drill rod is high in connection strength, when a joint needs to be replaced, the thread locking glue only needs to be heated and melted, different well repair drill rods can be used according to different wellhead size, meanwhile, the drill rod body can be used as an oil pipe, and the well repair drill rod is particularly suitable for procedures of salvaging and unfreezing, making a buckle and reversing the buckle, grinding and milling and drilling and the like during well repair of a slim hole.
Description
One, technical field: the utility model relates to a kind of drilling rod, the drilling rod that uses during particularly a kind of well workover.
Two, background technology: the Drilling rod for well-drilling of oil field use at present is all by API SPEC 5D (drilling well standard) processing, check and use.Its technical characterstic is to being welded on the drilling rod body numeric type (NC) and normal type (REC), full hole (FH), interior flat pattern (IF) tool joint (can be right-handed thread, also can be left hand thread).Its shortcoming one is that the tool joint diameter is big, can not pass through the slim-hole well head when well workover, the 2nd, and must cut away joint after the joints wear and weld again, the time-consuming material that takes.
Three, summary of the invention: the purpose of this utility model is exactly the above-mentioned technical problem that exists at existing drilling rod, and a kind of convenience Drilling rod for well-drilling that various workover treatments are used is provided.
The technical scheme of this Drilling rod for well-drilling comprises drilling rod body and last lower contact composition, it is characterized in that: internal thread is connected between upper and lower joint and the drilling rod body, bonding between the screw thread with thread locking glue, wherein top connection is the box of internal conical surface, lower contact is the pin thread of outer conical surface, threaded engagement between the upper and lower joint.Drilling rod body wherein can also be a kind of heavy wall tubing.
Adopt the Drilling rod for well-drilling bonding strength after this technology to be improved, when needs were changed joint, only needing heat thread locking glue to melt got final product.The drilling rod body can be used different Drilling rod for well-drilling according to different well head sizes after using heavy wall tubing, and the drilling rod body can be used as oil pipe and uses simultaneously, the salvaging unfreezing when being specially adapted to the slim-hole well workover, and the thread making back-off is handled, and milling operation such as is crept into and is used.
Four, description of drawings: accompanying drawing is a structural representation of the present utility model.
Five, the specific embodiment: with reference to accompanying drawing, according to the needs of different well head sizes, the heavy wall tubing of selecting different-diameter is processed left hand thread (or right-handed thread) 2 as drilling rod body 1 respectively at the two ends of drilling rod body 1.The one end internal thread of top connection 3 and the threaded engagement of drilling rod body 1, and scribble thread locking glue (not drawing among the figure) in the screw thread joint portion; The other end is the box of internal conical surface.Lower contact 4 is that an end internal thread is connected on the drilling rod body 1, and scribbles thread locking glue in the screw thread joint portion; The other end is the pin thread of outer conical surface.Mother between the upper and lower joint, pin thread threaded engagement.
Claims (2)
1, a kind of Drilling rod for well-drilling, comprise drilling rod body and last lower contact composition, it is characterized in that: internal thread is connected between upper and lower joint and the drilling rod body, bonding between the screw thread with thread locking glue, wherein top connection is the box of internal conical surface, lower contact is the pin thread of outer conical surface, threaded engagement between the upper and lower joint.
2, Drilling rod for well-drilling according to claim 1 is characterized in that: the drilling rod body is a kind of heavy wall tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01269206 CN2539832Y (en) | 2001-10-27 | 2001-10-27 | Well repairing drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01269206 CN2539832Y (en) | 2001-10-27 | 2001-10-27 | Well repairing drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539832Y true CN2539832Y (en) | 2003-03-12 |
Family
ID=33675241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01269206 Expired - Fee Related CN2539832Y (en) | 2001-10-27 | 2001-10-27 | Well repairing drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539832Y (en) |
Cited By (5)
| 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 |
| CN103184837A (en) * | 2011-12-30 | 2013-07-03 | 江阴德玛斯特钻具有限公司 | Well repair oil drill pipe provided with anti-torque shoulders |
| CN103184838A (en) * | 2011-12-30 | 2013-07-03 | 江阴德玛斯特钻具有限公司 | Quickly fastened and unfastened oil drill pipe for well repair |
| CN103797208A (en) * | 2011-09-13 | 2014-05-14 | 阿特拉斯·科普柯加拿大有限公司 | Drill pipe with replaceable tool joints |
| US9932788B2 (en) | 2015-01-14 | 2018-04-03 | Epiroc Drilling Tools Llc | Off bottom flow diverter sub |
-
2001
- 2001-10-27 CN CN 01269206 patent/CN2539832Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797208A (en) * | 2011-09-13 | 2014-05-14 | 阿特拉斯·科普柯加拿大有限公司 | Drill pipe with replaceable tool joints |
| 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 |
| CN103184837A (en) * | 2011-12-30 | 2013-07-03 | 江阴德玛斯特钻具有限公司 | Well repair oil drill pipe provided with anti-torque shoulders |
| CN103184838A (en) * | 2011-12-30 | 2013-07-03 | 江阴德玛斯特钻具有限公司 | Quickly fastened and unfastened oil drill pipe for well repair |
| US9932788B2 (en) | 2015-01-14 | 2018-04-03 | Epiroc Drilling Tools Llc | Off bottom flow diverter sub |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |