CN201460779U - Reciprocating hydraulic tube-drawing machine - Google Patents
Reciprocating hydraulic tube-drawing machine Download PDFInfo
- Publication number
- CN201460779U CN201460779U CN2009201008503U CN200920100850U CN201460779U CN 201460779 U CN201460779 U CN 201460779U CN 2009201008503 U CN2009201008503 U CN 2009201008503U CN 200920100850 U CN200920100850 U CN 200920100850U CN 201460779 U CN201460779 U CN 201460779U
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- slip
- hydraulic cylinder
- slips
- blocks
- drawing machine
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- Expired - Fee Related
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Abstract
The utility model discloses a reciprocating hydraulic tube-drawing machine. Two ends of a ring-shaped hydraulic cylinder (3) of the tube-drawing machine are provided with an upper slip and a lower slip (1, 1a); slip seats (7, 7a) of the upper slip and the lower slip (1, 1a) are respectively connected with an upper end cover and a lower end cover (2, 4) of the ring-shaped hydraulic cylinder (3) by bolts (10, 10a); the upper slip and the lower slip (1, 1a) are respectively formed by slip seats and slip blocks; the slip seats are internally provided with conical through holes; the slip blocks are three to four independent wedge-shaped blocks, and the inner sides of the slip blocks are provided with teeth; and the slip blocks are arranged among the slip seats and an oil pipe (11). In the reciprocating hydraulic tube-drawing machine, the slips are installed at the upper end and the lower end of the ring-shaped hydraulic cylinder, thus solving the problems that pipe columns are blocked in the process of downhole operation production, and the pipe columns are easily bended and deformed in the process of lifting the pipe columns by the hydraulic cylinder, and improving the success rate of workover; the device has stable lifting performance and the pipe columns are not easily bended and deformed in the lifting process; in addition, the device has small whole volume, light weight, safety and high workover success ratio.
Description
One, technical field
The utility model relates to the tubing string lifting appliance, specifically is that a kind of oilfield downhole operation tubing string that is used for is met a kind of reciprocating hydraulic drawbench that uses when blocking.
Two, background technology
In oilfield downhole operation, the situation that tubing string is met card often takes place, and meets card in case tubing string takes place in the operation, needs to use derrick realize pulling out by force operation, promptly works under the cooperation of derrick and travelling block, will meet the card tubing string and extract.If it is thicker to meet the card tubing string, it is bigger to pull up difficulty, then need change the large-tonnage derrick and realize pulling out by force operation, has both increased the construction cost of project, increases working strength of workers again.In order to reduce construction cost and working strength of workers; now use the hydraulic cylinder lifting device instead; this pipe drawing device is to adopt the double hydraulic cylinder lifting that the card tubing string is met in the down-hole to extract; and in the actual job process; since oil pipe in the down-hole more deeply and longer again; the lifting speed of two hydraulic cylinders is difficult to realize synchronously, in the process of lifting, causes drilling pipe bending, distortion through regular meeting.
Three, summary of the invention
The purpose of this utility model is to provide a kind of reciprocating hydraulic drawbench at the problems referred to above, solves owing to easily cause the problem of drilling pipe bending distortion in the underground work manufacturing process in the process of tubing string chance card, hydraulic cylinder lifting tubing string, improves the success rate of well workover.
The utility model is achieved through the following technical solutions: the reciprocating hydraulic drawbench is equipped with upper and lower slips at the two ends of annular hydraulic cylinder; The slip spider of upper and lower slips is connected with the upper and lower end bonnet bolt of annular hydraulic cylinder respectively; Upper and lower slips is made of slip spider and slip segment respectively, and conical through-hole is arranged in the slip spider, and slip segment is a 3-4 independently wedge, and there is tooth the inboard, and slip segment is loaded between slip spider and the oil pipe.
The good effect that the utility model has compared with the prior art: the utility model is installed slips at the upper and lower side of annular hydraulic cylinder, device lifting smooth performance can not cause the drilling pipe bending distortion in the process of lifting, and the device overall volume is little, in light weight, safety and well workover success rate height.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 upper slips, 1a lower slips, 2 upper end covers, 3 annular hydraulic cylinders, 4 bottom end covers, 5 central tubes, 6 pistons, 7 upper slips seats, 7a lower slips seat, 8 upper slips pieces, 8a lower slips piece, 9,9a fuel feed hole, 10,10a connecting bolt, 11 oil pipes.
Five, the specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 provides structural representation of the present utility model, as shown in the figure, the utility model is installed slips 1 at the upper and lower side of annular hydraulic cylinder 3,1a. upper slips 1 is made of upper slips seat 7 and upper slips piece 8, lower slips 1a is made of lower slips seat 7a and lower slips piece 8a, on, lower slips seat 7, conical through-hole is all arranged in the 7a, on, lower slips piece 8,8a respectively is the independently wedge that there is tooth 3 inboards, 3 wedges circumferentially distribute around oil pipe 11 in slip spider. also upper slips piece 8 and lower slips piece 8a can be designed to 4 independently wedges respectively, in slip spider, center on and circumferentially distribute along oil pipe 11. the annular piston chamber is arranged in the cylinder body of annular hydraulic cylinder 3, piston 6 centers are porose. and the centre bore of piston 6 is designed to 110 millimeters in the present embodiment, be loaded in the cylinder body of annular hydraulic cylinder 3, set upright by central tube 5. during installation, oil pipe 11 passes from the centre bore of piston 6, upper slips piece 7 is contained between oil pipe 11 and the upper slips seat 8, lower slips piece 7a is contained between oil pipe 11 and the lower slips seat 8a, upper slips piece 7, the flank of tooth of lower slips piece 7a is inwardly held oil pipe 11 tightly, the upper end cover 2 of annular hydraulic cylinder is connected by bolt 10 with upper slips seat 7, bottom end cover 4 is connected by bolt 10a with lower slips seat 7a. during work, high-pressure plunger pump provides power for annular hydraulic fluid cylinder 3, the piston 6 that drives in the hydraulic jack moves up and down, since upper slips seat 7 and lower slips seat 7a respectively with the upper end cover 2 of annular hydraulic cylinder 3 and bottom end cover 4 by bolt 10,10a connects, upper slips seat 7 after the connection, annular hydraulic cylinder 3, lower slips seat 7a becomes one, therefore on, lower slips 1,1a does in company with piston 6 to pump together. when hydraulic oil enters from fuel feed hole 9a, when promotion piston 6 moves upward, lower slips seat 7a, lower slips piece 8a, be loosening state between the oil pipe 11, upper slips 1 is held tightly in company with piston 6 with oil pipe 11 and is moved upward, oil pipe 11 is upwards pulled up a segment distance in well, this segment distance equates with the distance that piston 6 upwards moves. when the hydraulic oil promotion piston 6 that enters from fuel feed hole 9 moves downward, upper slips seat 7, upper slips piece 8, be loosening state between the oil pipe 11, lower slips seat 7a among the while lower slips 1a, lower slips piece 8a and oil pipe 11 are held tightly oil pipe 11 lockings, upper slips piece 8 moves downward by deadweight and falls into upper slips seat 7. moving upward once more when piston 6, a segment distance moves upward oil pipe 11 again, by piston 6 pump and oil pipe 11 up processes in, on, lower slips 1, locking between 1a and the oil pipe 11, the alternating movement of loosening is extracted stuck oil pipe 11 in well.
Claims (2)
1. a reciprocating hydraulic drawbench comprises annular hydraulic cylinder, it is characterized in that: upper and lower slips (1,1a) is equipped with at the two ends of annular hydraulic cylinder (3) in this drawbench; The slip spider of upper and lower slips (1,1a) (7,7a) is connected by bolt (10,10a) with the upper and lower end cap (2,4) of annular hydraulic cylinder (3) respectively; Described upper and lower slips (1,1a) is made of slip spider and slip segment respectively, and conical through-hole is arranged in the slip spider, and slip segment is a 3-4 independently wedge, and there is tooth the inboard, and slip segment is loaded between slip spider and the oil pipe (11).
2. reciprocating hydraulic drawbench according to claim 1 is characterized in that: slip segment circumferentially distributes around oil pipe (11) in slip spider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201008503U CN201460779U (en) | 2009-09-10 | 2009-09-10 | Reciprocating hydraulic tube-drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201008503U CN201460779U (en) | 2009-09-10 | 2009-09-10 | Reciprocating hydraulic tube-drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460779U true CN201460779U (en) | 2010-05-12 |
Family
ID=42388133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201008503U Expired - Fee Related CN201460779U (en) | 2009-09-10 | 2009-09-10 | Reciprocating hydraulic tube-drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN111119758A (en) * | 2020-02-10 | 2020-05-08 | 于燕 | Use method of self-balancing under-pressure operation device adopting directional slips |
| CN113374433A (en) * | 2021-07-22 | 2021-09-10 | 天津市景宝中泰科技有限公司 | Underground drilling vibration type constant force stuck releasing device and implementation method |
-
2009
- 2009-09-10 CN CN2009201008503U patent/CN201460779U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN102777145B (en) * | 2012-08-16 | 2015-07-29 | 中国石油大学(北京) | A kind of Electro-hydraulic drive coiled tubing downhole tractor |
| CN111119758A (en) * | 2020-02-10 | 2020-05-08 | 于燕 | Use method of self-balancing under-pressure operation device adopting directional slips |
| CN113374433A (en) * | 2021-07-22 | 2021-09-10 | 天津市景宝中泰科技有限公司 | Underground drilling vibration type constant force stuck releasing device and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DAQING JINGTAI PETROLEUM ENGINEERING TECHNOLOGY CO Free format text: FORMER NAME: DAQING OILFIELD JINGTAI PETROLEUM ENGINEERING TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 163311 industry zone three, hi tech Zone, Heilongjiang, Daqing Patentee after: Daqing Jingtai Petroleum Engineering Technology Co., Ltd. Address before: 163311 industry zone three, hi tech Zone, Heilongjiang, Daqing Patentee before: Daqing Oilfield Jingtai Petroleum Engineering Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20180910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |