CN201074489Y - Mill sleeve card-dispelling tubular pile for continuous tubing drill - Google Patents
Mill sleeve card-dispelling tubular pile for continuous tubing drill Download PDFInfo
- Publication number
- CN201074489Y CN201074489Y CNU2007201172068U CN200720117206U CN201074489Y CN 201074489 Y CN201074489 Y CN 201074489Y CN U2007201172068 U CNU2007201172068 U CN U2007201172068U CN 200720117206 U CN200720117206 U CN 200720117206U CN 201074489 Y CN201074489 Y CN 201074489Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- milling
- safety joint
- utility
- tool
- 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
- 238000003801 milling Methods 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 abstract 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
An unfreezing pipe column of drilling milling sets of coiled tubing relates to an underground unfreezing device. The purpose of the utility model is to solve the problem that a drilling milling casing string of a conventional straight well is non-centered and easy to be grinded the casing string. One end of a milling tool (1) of the utility model is connected with one end of a first centralizer (2), the other end of the first centralizer (2) is connected with one end of a power drill (3), the other end of the power drill (3) is connected with one end of a second centralizer (4), the other end of the second centralizer (4) is connected with one end of a safety joint (5), and the other end of the safety joint (5) is connected with one end of a coiled tubing (6). The utility model drives a drilling milling casing tool to work through the power drill, and the maximum limit protection of a casing pipe of a horizontal well can be realized. Simultaneously, a rolling ball centralizer and a safety joint are arranged in a pipe column, which better solves the problem that the sidetrack is eccentrically worn and solves the problem of the security of tools.
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 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, and the problem of easily grinding sleeve pipe provides a kind of coiled tubing to bore milling cover unfreezing tubing string.
The utility model is made up of milling tool 1, first centralizer 2, power drilling tool 3, second centralizer 4, safety joint 5 and coiled tubing 6, one end of milling tool 1 is connected with an end of first centralizer 2, the other end of first centralizer 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 second centralizer 4, the other end of second centralizer 4 is connected with an end of safety joint 5, and the other end of safety joint 5 is connected with an end of coiled tubing 6.
The utlity model has following beneficial effect: one, the coiled tubing on the utility model top does not rotate, and drives by power drilling tool and bores milling cover tool work, can realize horizontal well casing pipe is protected to greatest extent.Two, in tubing string, add centralizer and safety joint, preferably resolve the eccentric wear sidetracking and the safety problem of instrument.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 made up of milling tool 1, first centralizer 2, power drilling tool 3, second centralizer 4, safety joint 5 and coiled tubing 6, one end of milling tool 1 is connected with an end of first centralizer 2, the other end of first centralizer 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 second centralizer 4, the other end of second centralizer 4 is connected with an end of safety joint 5, and the other end of safety joint 5 is connected with an end of coiled tubing 6.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; 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; 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 coiled tubing bores milling cover unfreezing tubing string, it is by milling tool (1), first centralizer (2), power drilling tool (3), second centralizer (4), safety joint (5) and coiled tubing (6) are formed, an end that it is characterized in that milling tool (1) is connected with an end of first centralizer (2), the other end of first centralizer (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 second centralizer (4), the other end of second centralizer (4) is connected with an end of safety joint (5), and the other end of safety joint (5) is connected with an end of coiled tubing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172068U CN201074489Y (en) | 2007-10-17 | 2007-10-17 | Mill sleeve card-dispelling tubular pile for continuous tubing drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172068U CN201074489Y (en) | 2007-10-17 | 2007-10-17 | Mill sleeve card-dispelling tubular pile for continuous tubing drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201074489Y true CN201074489Y (en) | 2008-06-18 |
Family
ID=39519752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201172068U Expired - Fee Related CN201074489Y (en) | 2007-10-17 | 2007-10-17 | Mill sleeve card-dispelling tubular pile for continuous tubing drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201074489Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437588A (en) * | 2016-10-25 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well coiled tubing drill-grinding operation construction method |
| CN106930714A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | A kind of coiled tubing underground releasing tool |
| 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 |
-
2007
- 2007-10-17 CN CNU2007201172068U patent/CN201074489Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930714A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | A kind of coiled tubing underground releasing tool |
| CN106437588A (en) * | 2016-10-25 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well coiled tubing drill-grinding operation construction method |
| CN106437588B (en) * | 2016-10-25 | 2018-07-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of horizontal well continuous tubing drill mill operation construction method |
| 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 |
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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: 20080618 Termination date: 20161017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |