CN202745771U - Hydraulic mechanical anchor for continuous pipe - Google Patents
Hydraulic mechanical anchor for continuous pipe Download PDFInfo
- Publication number
- CN202745771U CN202745771U CN 201220300266 CN201220300266U CN202745771U CN 202745771 U CN202745771 U CN 202745771U CN 201220300266 CN201220300266 CN 201220300266 CN 201220300266 U CN201220300266 U CN 201220300266U CN 202745771 U CN202745771 U CN 202745771U
- Authority
- CN
- China
- Prior art keywords
- slips
- pipe
- piston rod
- hydraulic mechanical
- continuous
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a hydraulic mechanical anchor for a continuous pipe, which is designed for meeting the particular requirements of the continuous pipe on operation size, connecting mode and operation mechanism and achieving the purpose of carrying out positioning operation within a small-size range. The hydraulic mechanical anchor is characterized in that an upper connector is in a cylinder shape at the upper part and a conical cylinder shape at the lower part; the lower end of the upper connector is connected with a piston rod provided with a center hole; the upper part of the piston rod is sleeved with a slips and a piston cylinder positioned below the slips; the bottom end of the center hole of the piston cylinder is connected with a bull plug fixed by a radial shear pin; and the bottom end of the piston cylinder is connected with a lower connector through a pipe nipple. The slips of the hydraulic mechanical anchor comprises three anchor clamps which are uniformly distributed, the relative movement of the slips and the upper connector is realized through the pressure pushing of the piston cylinder, and the slips is radially opened and anchored on a pipe wall through the conical cylinder of the upper connector; and when pipe pressure reaches a preset anchoring pressure, the shear pin is sheared, and the bull plug is opened, so that cycle operation is continued. The hydraulic mechanical anchor disclosed by the utility model can be suitable for the small-size operation range of the continuous pipe and an oil through pipe, achieves the uniform stress of downhole operation and can meet the requirements of different pressures on anchoring and operation of the continuous pipe, the size of the shear pin can be flexibly determined and simple, convenient and reliable anchoring process can be achieved.
Description
Technical field
The utility model relates to a kind of continuous-tube hydraulic anchor, belongs to continuous-tube well workover underground operation tool technical field.
Background technology
Because the particularity of continuous-tube operation, and the anchoring device that conventional oil pipe workover treatment is used is different from the operation mechanism of continuous-tube, makes conventional oil pipe can't be applicable to the continuous-tube operation of oil pipe.In the grappling process of workover treatment, existing continuous oil pipe anchor for fracturing work can't be adjusted anchorage force according to the variation of down-hole pressure, brings many constant to operation.
Summary of the invention
The purpose of this utility model is to provide a kind of continuous-tube hydraulic anchor, and it can satisfy continuous-tube to the particularity requirement of operation size, connected mode and operation mechanism, positions operation in range of small.
Concrete technical scheme of the present utility model is as follows:
Top connection is top cylinder and bottom cone tubular, top connection bottom connecting band end sealing circle also is provided with the piston rod of centre bore, the piston rod of piston rod top socket slips and its below, piston rod centre bore bottom connects by radially cutting off fixing dead blocking up, and the piston rod bottom connects lower contact by short circuit.
The slips of continuous-tube hydraulic anchor is comprised of three uniform anchor clamps, promote to realize the relative motion of slips and top connection by the pressure of fluid cylinder, top connection cone cylinder radially opens slips, contact the pre-coupling mechanism force of generation with tubing wall, top connection is inserted into slips to bottom offset, and slips is anchored on the tube wall firmly.Be pressed onto at pipe and reach when setting grappling pressure, cut off and cut off, open dead stifledly, continue cycle operation.Carry continuous-tube on after the release, reclaim anchor clamp.
The utility model can be applicable to the small size job area that continuous-tube is crossed oil pipe.Three anchor clamps of slips are stressed even when underground work, and the anchor clamp position is easy between two parties.Adopt dead stifled pressure limiting can satisfy well the different pressures requirement of continuous-tube grappling and operation.Can determine the size that cuts off to make operating flexibility controlled according to the underground work situation.By the pressure promotion realization top connection of piston rod and the relative motion of slips, make the grappling process simple, convenient and reliable.Can be by carrying the recovery anchor clamp on the continuous-tube after the release, safe and reliable.
Description of drawings
Fig. 1 is continuous-tube hydraulic anchor structure schematic diagram.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
Top connection 1 is top cylinder and bottom cone tubular, top connection 1 bottom connecting band end sealing circle 2 also is provided with the piston rod 5 of centre bore, piston rod 5 tops are socketed with the slips 3 of three anchor clamps and the piston rod 4 of its below, piston rod 4 centre bore bottoms connect by radially cutting off 7 fixing dead stifled 6, and piston rod 4 bottoms connect lower contacts 9 by short circuit 8.
The utility model is applicable to the workover treatment of continuous-tube, after the ontology tool assembling, behind the connector and lower contact 9 connecting downhole power tools and cutter with top connection 1 connection continuous-tube, gets final product the cutting operation that carries out continuous-tube under the lower going-into-well before using.
Claims (1)
1. continuous-tube hydraulic anchor is characterized in that:
Top connection (1) is top cylinder and bottom cone tubular, top connection (1) bottom connecting band end sealing circle (2) also is provided with the piston rod (5) of centre bore, the piston rod (4) of piston rod (5) top socket slips (3) and its below, piston rod (4) centre bore bottom connects by radially cutting off (7) fixing dead stifled (6), and piston rod (4) bottom connects lower contact (9) by short circuit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300266 CN202745771U (en) | 2012-06-21 | 2012-06-21 | Hydraulic mechanical anchor for continuous pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300266 CN202745771U (en) | 2012-06-21 | 2012-06-21 | Hydraulic mechanical anchor for continuous pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745771U true CN202745771U (en) | 2013-02-20 |
Family
ID=47705188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220300266 Expired - Fee Related CN202745771U (en) | 2012-06-21 | 2012-06-21 | Hydraulic mechanical anchor for continuous pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545225A (en) * | 2016-01-07 | 2016-05-04 | 西南石油大学 | Horizontal well drill stem feeding tool |
| CN105625958A (en) * | 2016-01-07 | 2016-06-01 | 西南石油大学 | Hydraulic pulse type pressurizing drilling column feeding tool |
-
2012
- 2012-06-21 CN CN 201220300266 patent/CN202745771U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545225A (en) * | 2016-01-07 | 2016-05-04 | 西南石油大学 | Horizontal well drill stem feeding tool |
| CN105625958A (en) * | 2016-01-07 | 2016-06-01 | 西南石油大学 | Hydraulic pulse type pressurizing drilling column feeding tool |
| CN105545225B (en) * | 2016-01-07 | 2017-12-12 | 西南石油大学 | A kind of drillstring in horizontal section is sent into instrument |
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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: 20130220 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |