CN2793305Y - Fishing and delivering tool of guide cylinder for branched well - Google Patents
Fishing and delivering tool of guide cylinder for branched well Download PDFInfo
- Publication number
- CN2793305Y CN2793305Y CN 200520020712 CN200520020712U CN2793305Y CN 2793305 Y CN2793305 Y CN 2793305Y CN 200520020712 CN200520020712 CN 200520020712 CN 200520020712 U CN200520020712 U CN 200520020712U CN 2793305 Y CN2793305 Y CN 2793305Y
- Authority
- CN
- China
- Prior art keywords
- guide cylinder
- suspension body
- fishing
- tool
- hanging 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
Links
Abstract
The utility model relates to a novel fishing and delivering tool of a guide cylinder for a branched well, which mainly solves the problem that the existing fishing tools of inclination guiding devices have lower success rate. The utility model is characterized in that a spindle (2) which has a stepped plate (3) and is connected to a pressure adjusting nut (9) at the lower end is connected with the lower part of an upper connector (1); a hanging body (4) is sheathed outside the spindle (2), petal-shaped elastic claws (5) which are uniformly distributed in circumferential direction are arranged at the lower end of the hanging body (4), and the upper end of the hanging body (4) is arranged in the upper connector (1); a spring (6) is arranged between the hanging body (4) and the upper connector (1); a seal cavity is arranged between the hanging body (4) and the spindle (2), and an inlet opening (8) is arranged on the spindle (2) in the position which is corresponding to the seal cavity (7). The tool is simple in structure, easy in operation and high in success rate, which can be used for delivering and fishing operation at any time without changing tools.
Description
Technical field:
The utility model relates to a kind of downhole tool used in the petroleum drilling engineering, belongs to a kind of novel Multilateral Wells guide cylinder and salvages running tool.
Background technology:
Along with the high speed development of drilling technology, the branch hole drilling completion technique be one rising can reduce the oil and gas development cost, improve the new drilling completion technology of the rate of oil and gas recovery.Because the complexity of Multilateral Wells itself, the low development that has limited the Multilateral Wells technology of success rate, especially Multilateral Wells Duan Yue is many, and its complexity is also high more.After the Multilateral Wells completion, need enter lateral branching again and carry out subsequent jobs such as perforation, pressure break, oil recovery.How smoothly again approaching side become one of major reason that influences the Multilateral Wells success or failure to the Multilateral Wells section.At present, in the domestic Multilateral Wells technology, the mode that side direction enters is normally sent into wedge deflection tool with special tool in main hole, imports lateral branching, after fulfiling assignment, uses special salvaging anchor to salvage wedge deflection tool.This mode principle is simple, needs to change different instruments but exist to send into reclaiming, and salvages relatively difficulty of wedge deflection tool, the shortcoming that success rate is lower.
The utility model content:
In order to overcome the lower deficiency of existing wedge deflection tool fishing tool success rate, the utility model provides a kind of novel Multilateral Wells guide cylinder to salvage running tool, and this tool construction is simple, easy operating, can send at any time and fishing, need not the replacing instrument, the success rate height.
The technical solution of the utility model is: a kind of novel Multilateral Wells guide cylinder is salvaged running tool and is comprised top connection, the top connection below is connected with is with stage and lower end to be connected with the mandrel of look nut, mandrel is with suspension body outward, the lower end of suspension body is the elastic claw of circumferential equally distributed flap, the upper end of suspension body places in the top connection, be equipped with spring between suspension body and the top connection, an annular seal space is arranged between suspension body and the mandrel, corresponding annular seal space place has inlet opening on the mandrel.
Above-mentioned suspension body is connected with sheath outward.
The utlity model has following beneficial effect: owing to take such scheme, wedge deflection tool adopts inwall to have the guide cylinder of the annular groove that cooperates with elastic claw.When elastic claw stretches out, snap in the annular groove of guide cylinder, implementation tool with lead being connected of oblique tube, during the elastic claw retraction, instrument and guide cylinder disengaging.By the fluid power circulation, utilize the instrument inside and outside differential pressure, realize stretching out and retraction of elastic claw.This tool construction is simple, easy operating, can send at any time and fishing, need not the replacing instrument, the success rate height.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-top connection among the figure, 2-mandrel, 3-stage, 4-suspension body, 5-elastic claw, 6-spring, 7-annular seal space, 8-inlet opening, 9-look nut, 10-sheath.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of novel Multilateral Wells guide cylinder is salvaged running tool and is comprised top connection 1, top connection 1 below is connected with is with stage 3 and lower end to be connected with the mandrel 2 of look nut 9, the mandrel 2 outer suspension bodies 4 that are with, the lower end of suspension body 4 is the elastic claw 5 of circumferential equally distributed flap, the upper end of suspension body 4 places in the top connection 1, be equipped with spring 6 between suspension body 4 and the top connection 1, one annular seal space 7 is arranged between suspension body 4 and the mandrel 2, be connected with sheath 10 outside the suspension body 4, corresponding annular seal space 7 places have inlet opening 8 on the mandrel 2.During actual the use, push the guide cylinder that inwall has annular groove on ground below instrument, the elastic claw 5 on the suspension body 4 moves upward under thrust, and when surpassing stage 3 positions of mandrel 2, elastic claw 5 inwardly shrinks, and enters the guide cylinder inboard.When arriving guide cylinder inwall annular groove position, elastic claw 5 stretches out, and snaps in annular groove, and by the effect of spring 6 elastic force, elastic claw 5 is got back to original stage 3 positions and locked simultaneously.After with drilling rod instrument and guide cylinder being lowered into assigned address, the turn on pump circulation utilizes the instrument inside and outside differential pressure, inlet opening 8 on the mandrel 2 injects liquid, promotes suspension body 4 and moves upward together with elastic claw 5, when surpassing stage 3 positions, elastic claw 5 inwardly shrinks, and gets final product the disengaging of implementation tool and guide cylinder.When salvaging guide cylinder, push instrument downwards above guide cylinder, elastic claw 5 snaps in annular groove automatically, can realize reclaiming.This tool construction is simple, easy operating, can send at any time and fishing, need not the replacing instrument, the success rate height.
Claims (2)
1, a kind of novel Multilateral Wells guide cylinder is salvaged running tool, comprise top connection (1), it is characterized in that: top connection (1) below is connected with is with stage (3) and lower end to be connected with the mandrel (2) of look nut (9), the outer suspension body (4) that is with of mandrel (2), the lower end of suspension body (4) is the elastic claw (5) of circumferential equally distributed flap, the upper end of suspension body (4) places in the top connection (1), be equipped with spring (6) between suspension body (4) and the top connection (1), between suspension body (4) and the mandrel (2) annular seal space (7) is arranged, mandrel (2) is gone up corresponding annular seal space (7) and is located to have inlet opening (8).
2, a kind of novel Multilateral Wells guide cylinder according to claim 1 is salvaged running tool, it is characterized in that: the outer sheath (10) that is connected with of suspension body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020712 CN2793305Y (en) | 2005-04-27 | 2005-04-27 | Fishing and delivering tool of guide cylinder for branched well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020712 CN2793305Y (en) | 2005-04-27 | 2005-04-27 | Fishing and delivering tool of guide cylinder for branched well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793305Y true CN2793305Y (en) | 2006-07-05 |
Family
ID=36820450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520020712 Expired - Fee Related CN2793305Y (en) | 2005-04-27 | 2005-04-27 | Fishing and delivering tool of guide cylinder for branched well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793305Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114021A (en) * | 2015-09-17 | 2015-12-02 | 湖南唯科拓石油科技服务有限公司 | Hanging sealer for installing velocity string in oil pipe and feeding and recovering tool of hanging sealer |
| CN115263213A (en) * | 2021-04-30 | 2022-11-01 | 中国石油化工股份有限公司 | Guiding device for multi-branch completion pipe string and construction method |
-
2005
- 2005-04-27 CN CN 200520020712 patent/CN2793305Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114021A (en) * | 2015-09-17 | 2015-12-02 | 湖南唯科拓石油科技服务有限公司 | Hanging sealer for installing velocity string in oil pipe and feeding and recovering tool of hanging sealer |
| CN105114021B (en) * | 2015-09-17 | 2019-01-15 | 湖南唯科拓石油科技服务有限公司 | The suspension sealer of installation speed tubing string and its feeding and recycling tool in oil pipe |
| CN115263213A (en) * | 2021-04-30 | 2022-11-01 | 中国石油化工股份有限公司 | Guiding device for multi-branch completion pipe string and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060705 Termination date: 20100427 |