CN201068752Y - Composite driven stuck-freeing pipe column for drilling, abrasion, milling - Google Patents
Composite driven stuck-freeing pipe column for drilling, abrasion, milling Download PDFInfo
- Publication number
- CN201068752Y CN201068752Y CNU2007201172087U CN200720117208U CN201068752Y CN 201068752 Y CN201068752 Y CN 201068752Y CN U2007201172087 U CNU2007201172087 U CN U2007201172087U CN 200720117208 U CN200720117208 U CN 200720117208U CN 201068752 Y CN201068752 Y CN 201068752Y
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- milling
- sleeve
- centralizer
- drilling
- rod
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- Expired - Fee Related
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Abstract
A composite drive drill milling sleeve jam releasing column jacket relates to a downhole jam releasing device. The utility model aims at solving the problem that the drill milling sleeve column jacket of a general straight well is not in the middle and easy to mill the sleeve. One end of a milling tool (1) of the utility model is connected with one end of a safety joint (2), the other end of the safety joint (2) is connected with one end of a power driller (3), the other end of the power driller (3) is connected with one end of a first centering guide (4), the other end of the first centering guide (4) is connected with one end of a straight screw rod (5), the other end of the straight screw rod (5) is connected with one end of a second centering guide (6), the other end of the second centering guide (6) is connected with the lower end of a slope drill rod (7), the upper end of the slope drill rod (7) is connected with the lower end of a weighting drill rod (8), and the upper end of the weighting drill rod (8) is connected with the lower end of a drill rod (9). The utility model adopts a composite drive technology, thereby not only reducing the attrition of the column jacket to the sleeve of the straight well and protecting the sleeve, but also improving the work efficiency of the drive milling sleeve.
Description
Technical field
The utility model relates to a kind of down-hole unfreezing tubing string.
Background technology
Because horizontal well is big at the bending section hole curvature, at horizontal segment hole angle big (generally about 90 °), bore the milling casing string and be close to the casing wall downside, the brill milling casing string of conventional straight well is not placed in the middle, easily grinds sleeve pipe.Simultaneously, the easy eccentric wear of lower tool goes out sleeve pipe, causes the sleeve pipe side direction to window.Therefore, the brill milling casing string of the conventional straight well brill milling cover technology of incompatibility horizontal well.
The utility model content
The purpose of this utility model is not placed in the middle for the brill milling casing string that solves conventional straight well, easily grinds sleeve pipe, and the easy eccentric wear of lower tool goes out sleeve pipe, and the problem that causes the sleeve pipe side direction to window provides a kind of combination flooding to bore milling cover unfreezing tubing string.
The utility model is by milling tool 1, safety joint 2, power drilling tool 3, first centralizer 4, straight screw rod 5, second centralizer 6, slope drilling rod 7, heavy weight drill pipe 8 and drilling rod 9 are formed, one end of milling tool 1 is connected with an end of safety joint 2, the other end of safety joint 2 is connected with an end of power drilling tool 3, the other end of power drilling tool 3 is connected with an end of first centralizer 4, the other end of first centralizer 4 is connected with an end of straight screw rod 5, the other end of straight screw rod 5 is connected with an end of second centralizer 6, the other end of second centralizer 6 is connected with the lower end of slope drilling rod 7, the upper end of slope drilling rod 7 is connected with the lower end of heavy weight drill pipe 8, and the upper end of heavy weight drill pipe 8 is connected with the lower end of drilling rod 9.
The utlity model has following beneficial effect: one, the utility model adopts the combination flooding braking technique that power drilling tool and drilling rod drive simultaneously, has both reduced the friction of tubing string to horizontal well casing pipe, has protected sleeve pipe, can improve the operating efficiency of boring the milling cover again.Two, in tubing string, add ball centralizer and safety joint, preferably resolve the eccentric wear sidetracking and the safety problem of tubing string.Three, the utility model is used for horizontal well bending section or horizontal segment and the smallclothes junk is fallen unfreezing, tubing string behind the well jam falls behind the well by the unfreezing behind other smallclothes junk jam or other releasing method last unfreezing measure after invalid, the final unfreezing fishing of realizing horizontal well is blocked junk.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The specific embodiment one: see Fig. 1, present embodiment is by milling tool 1, safety joint 2, power drilling tool 3, first centralizer 4, straight screw rod 5, second centralizer 6, slope drilling rod 7, heavy weight drill pipe 8 and drilling rod 9 are formed, one end of milling tool 1 is connected with an end of safety joint 2, the other end of safety joint 2 is connected with an end of power drilling tool 3, the other end of power drilling tool 3 is connected with an end of first centralizer 4, the other end of first centralizer 4 is connected with an end of straight screw rod 5, the other end of straight screw rod 5 is connected with an end of second centralizer 6, the other end of second centralizer 6 is connected with the lower end of slope drilling rod 7, the upper end of slope drilling rod 7 is connected with the lower end of heavy weight drill pipe 8, and the upper end of heavy weight drill pipe 8 is connected with the lower end of drilling rod 9.During work, start the circulation workover fluid, power drilling tool 3 is started working, and the milling tool 1 that drives the bottom is started working; Start rotating disk simultaneously, drilling rod 9 drives heavy weight drill pipe 8 and slope drilling rod 7 is started working, and rotating speed is 15-20r/min, and at this moment power drilling tool 3 and slope drilling rod 7 drive simultaneously, have realized compound driving; In boring milling cover process, 1 pair of milling tool is carried out destructiveness by the card fish to be handled, and as to cable, wire rope, running string and fall well tool etc. and bore mill, overlap and mill, disposes the fish at blocked portion place, with the releasing blocked portion; After unfreezing finishes, trip out coiled tubing and bore milling cover unfreezing tubing string, following fishing string is pulled junk out; Under the situation that can't implement to salvage, also can directly fish be bored and grind off.
Claims (1)
1. a combination flooding bores milling cover unfreezing tubing string, it is by milling tool (1), safety joint (2), power drilling tool (3), first centralizer (4), straight screw rod (5), second centralizer (6), slope drilling rod (7), heavy weight drill pipe (8) and drilling rod (9) are formed, an end that it is characterized in that milling tool (1) is connected with an end of safety joint (2), the other end of safety joint (2) is connected with an end of power drilling tool (3), the other end of power drilling tool (3) is connected with an end of first centralizer (4), the other end of first centralizer (4) is connected with an end of straight screw rod (5), the other end of straight screw rod (5) is connected with an end of second centralizer (6), the other end of second centralizer (6) is connected with the lower end of slope drilling rod (7), the upper end of slope drilling rod (7) is connected with the lower end of heavy weight drill pipe (8), and the upper end of heavy weight drill pipe (8) is connected with the lower end of drilling rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172087U CN201068752Y (en) | 2007-10-17 | 2007-10-17 | Composite driven stuck-freeing pipe column for drilling, abrasion, milling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172087U CN201068752Y (en) | 2007-10-17 | 2007-10-17 | Composite driven stuck-freeing pipe column for drilling, abrasion, milling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068752Y true CN201068752Y (en) | 2008-06-04 |
Family
ID=39490132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201172087U Expired - Fee Related CN201068752Y (en) | 2007-10-17 | 2007-10-17 | Composite driven stuck-freeing pipe column for drilling, abrasion, milling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068752Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476773A (en) * | 2017-08-24 | 2017-12-15 | 中国石油天然气股份有限公司 | Tool string and method for eliminating obstacles in well |
| CN111140173A (en) * | 2019-12-30 | 2020-05-12 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
-
2007
- 2007-10-17 CN CNU2007201172087U patent/CN201068752Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476773A (en) * | 2017-08-24 | 2017-12-15 | 中国石油天然气股份有限公司 | Tool string and method for eliminating obstacles in well |
| CN111140173A (en) * | 2019-12-30 | 2020-05-12 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
| CN111140173B (en) * | 2019-12-30 | 2021-06-01 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
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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: 20080604 Termination date: 20161017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |