CN201687424U - Lead sealing tool for broken casing - Google Patents
Lead sealing tool for broken casing Download PDFInfo
- Publication number
- CN201687424U CN201687424U CN2010202114803U CN201020211480U CN201687424U CN 201687424 U CN201687424 U CN 201687424U CN 2010202114803 U CN2010202114803 U CN 2010202114803U CN 201020211480 U CN201020211480 U CN 201020211480U CN 201687424 U CN201687424 U CN 201687424U
- Authority
- CN
- China
- Prior art keywords
- lead sealing
- lead seal
- lead
- seal shaft
- shaft
- 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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- Pipe Accessories (AREA)
Abstract
A lead sealing tool for a broken casing comprises a lead seal shaft, a lead seal baffle plate, a lead seal envelop and a guide taper; the lead seal envelop is enveloped on the lead seal shaft; the lead seal envelop is provided with a lead seal baffle plate; the lead seal baffle plate is fixed on the lead seal shaft; the lower portion of the lead seal shaft is connected with the guide taper; screw threads are arranged on the upper portion of the lead seal shaft; the screw thread direction on the upper portion of the lead seal shaft is opposite to that on the lower portion of the lead seal shaft; channels are arranged in the lead seal shaft and the guide taper; the screw thread on the upper portion of the lead seal shaft is the oil pipe screw thread; an oil pipe coupling is connected on the upper portion of the lead seal shaft; the lead seal envelop is automatically deformed under the pressure action; a notch is closed at the casing broken position; an oil-water well is normal in production without the leakage any more, and has complicated technology, short workover time, less operating cost and significant economic benefit.
Description
Technical field
The utility model belongs to the equipment that the oil field well workover is used, and particularly a kind of sleeve pipe bad break is made the lead sealing instrument.
Background technology
Sleeve in oil field bad break well is many at present, cause the oil-water well can not ordinary production, reduced the economic benefit of oil-water well, in order to eliminate or to reduce the influence that the sleeve pipe bad break is produced oil-water well, need administer sleeve pipe bad break place, generally take the bad break place is carried out casing patching, this improvement method expense height, the well workover time is long, deficiency in economic performance.For sleeve pipe bad break oil well can be re-used, sometimes take at the above window sidetracking in sleeve pipe bad break position, be equivalent at the new well of sleeve pipe bad break place brill a bite, the sleeve pipe bad break is left unused with well-sinking, not only cause very big waste, also to drop into very big manpower and materials, have complex process, operating cost height, long problem of well workover time equally.
Summary of the invention
The purpose of this utility model is that a kind of sleeve pipe bad break of design is made the lead sealing instrument, overcomes the deficiencies in the prior art, makes the bad break position by shutoff, recovers oil-water well production.
The purpose of this utility model is achieved in that and comprises lead sealing axle, lead sealing catch, lead sealing skin, starting taper, the lead sealing suitcase overlays on the lead sealing axle, the lead sealing skin has the lead sealing catch, the lead sealing catch is fixed on the lead sealing axle, lead sealing axle bottom is connected with starting taper, screw thread is arranged at lead sealing axle top, and lead sealing axle top thread rotary orientation is opposite with lead sealing axle lower thread rotation direction, and there is passage lead sealing axle, starting taper inside.
Lead sealing axle top screw thread is a tubing round thread, and tubing coupling is connected with lead sealing axle top.
The beneficial effects of the utility model are: the lead sealing skin is under pressure from dynamic deformation, the breach at sleeve pipe bad break place is closed, and oil-water well is no longer missed, oil-water well energy ordinary production, and complex process, the well workover time is short, operating cost is few, has remarkable economic efficiency.
Description of drawings
Accompanying drawing 1 is an assembling drawing of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Embodiment of the present utility model is by tubing coupling 1, lead sealing axle 2, lead sealing catch 3, lead sealing skin 4, starting taper 5 is formed, lead sealing skin 4 is coated on the lead sealing axle 2, lead sealing skin 4 has lead sealing catch 3, lead sealing catch 3 can not come off lead sealing skin 4, lead sealing catch 3 is fixed on the lead sealing axle 2, lead sealing catch 3 can not come off lead sealing skin 4, fixed form can be welded, also can be threaded, lead sealing axle 2 bottoms are connected with starting taper 5, screw thread is arranged at lead sealing axle 2 tops, and lead sealing axle 2 top thread rotary orientations are opposite with lead sealing axle 2 lower thread rotation directions, lead sealing axle 2, there is passage 6 starting taper 5 inside, lead sealing axle 2 top screw threads are tubing round thread, tubing coupling 1 is connected with lead sealing axle 2 tops, and tubing coupling 1 is connected with the anti-jack slips on top, and anti-jack slips does not draw in the accompanying drawings.
When going into the well, tubing coupling 1 is connected with the anti-jack slips on top, and anti-jack slips is connected with oil pipe.When arriving sleeve pipe bad break position instantly, starting taper 5 is introduced lead sealing skin 4 in the sleeve pipe of bad break position, sleeve pipe bad break internal diameter diminishes, lead sealing skin 4 external diameters are greater than sleeve pipe bad break internal diameter, oil pipe weight is pressed on the lead sealing skin 4, make 4 distortion of lead sealing skin, thereby the breach at sleeve pipe bad break place is closed, the anti-jack slips on the utility model top is opened, and heavily the gravity of lead sealing skin 4 exists all the time, and the breach at sleeve pipe bad break place is closed all the time, after opening, anti-jack slips is separated into two bodies, the upper body is suggested, and passage 6 becomes oil flow channel or waterflood path, and oil-water well can return to normal production.
When the sleeve pipe bad break is out of shape when serious, may cause starting taper 5 to be hampered or meet card, can the screw thread of lead sealing axle 2 bottoms and starting taper 5 junctions be threaded off by rotation pipeline, handle again after earlier the parts on the starting taper 5 being proposed, can improve safety so adopt left-hand thread to connect.
Claims (2)
1. a sleeve pipe bad break is made the lead sealing instrument, it is characterized in that: comprise lead sealing axle (2), lead sealing catch (3), lead sealing skin (4), starting taper (5), lead sealing skin (4) is coated on the lead sealing axle (2), lead sealing skin (4) has lead sealing catch (3), lead sealing catch (3) is fixed on the lead sealing axle (2), lead sealing axle (2) bottom is connected with starting taper (5), screw thread is arranged at lead sealing axle (2) top, lead sealing axle (2) top thread rotary orientation is opposite with lead sealing axle (2) lower thread rotation direction, and there is passage (6) lead sealing axle (2), starting taper (5) inside.
2. sleeve pipe bad break according to claim 1 is made the lead sealing instrument, it is characterized in that: lead sealing axle (2) top screw thread is a tubing round thread, and tubing coupling (1) is connected with lead sealing axle (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202114803U CN201687424U (en) | 2010-06-01 | 2010-06-01 | Lead sealing tool for broken casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202114803U CN201687424U (en) | 2010-06-01 | 2010-06-01 | Lead sealing tool for broken casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687424U true CN201687424U (en) | 2010-12-29 |
Family
ID=43375708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202114803U Expired - Fee Related CN201687424U (en) | 2010-06-01 | 2010-06-01 | Lead sealing tool for broken casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975819A (en) * | 2015-06-23 | 2015-10-14 | 胜利油田长龙橡塑有限责任公司 | Side tracking casing pipe blockage oil enhancing device |
-
2010
- 2010-06-01 CN CN2010202114803U patent/CN201687424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975819A (en) * | 2015-06-23 | 2015-10-14 | 胜利油田长龙橡塑有限责任公司 | Side tracking casing pipe blockage oil enhancing device |
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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: 20101229 Termination date: 20110601 |