CN203347739U - Under pressure well plug-injection type packer - Google Patents
Under pressure well plug-injection type packer Download PDFInfo
- Publication number
- CN203347739U CN203347739U CN 201320437524 CN201320437524U CN203347739U CN 203347739 U CN203347739 U CN 203347739U CN 201320437524 CN201320437524 CN 201320437524 CN 201320437524 U CN201320437524 U CN 201320437524U CN 203347739 U CN203347739 U CN 203347739U
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- CN
- China
- Prior art keywords
- wing plate
- plate support
- packer
- slips
- sheath
- 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 - Lifetime
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Abstract
The utility model relates to an under pressure well plug-injection type packer. In order to overcome the defects of the background technology, the utility model provides the under pressure well plug-injection type packer, which is simple to operate and high in reliability. The packer comprises a fishing head, wherein internal threads of the fishing head are connected with a center rod, the center rod is connected with a lifting seat by virtue of a lifting pin, the lifting seat is connected with a lining sleeve, the outer cylindrical surface of the lining sleeve is sequentially connected with a wing plate support, two rubber sleeves, and an isolating baffle plate between the two rubber sleeves, and external threads of the tail end of the lining sleeve are connected with a tail nut between the rubber sleeves and the wing plate support; a setting sheath, slips, the sheath and the sheath baffle plate are sequentially arranged between the tail end and the rubber sleeves. The packer disclosed by the utility model has the beneficial effects that the operations such as positioning, setting, anchoring and fishing of the packer are completed in one step by a steel wire rope pulling method, the upper part of the packer can be recovered and reused, and the packer has the characteristics of being recoverable, low in cost, simple in structure and reliable in anchoring.
Description
Technical field
The utility model relates to packing and the valve gear of oil exploitation, is specifically related to be with kill-job to throw stifled blanking plug.
Background technology
Changing oil pipe is a key operation flow process in the oil exploitation process, while changing oil pipe, need to be by zonal isolation to guarantee that crude oil can not leak and keep the pressure of oil reservoir, if process the reservoir plugging problem of bad oil pipe, may bring and pollute or stop up to oil reservoir, reduce output, serious impact is recovered the oil and is produced, what while changing oil pipe at present, generally adopt is blanking plug, adopt the way of zonal isolation is prevented to oil reservoir is destroyed, there is complicated operation in the blanking plug used at present, the problem that reliability is low.
Summary of the invention
In order to overcome the deficiency of background technology, it is a kind of simple to operate that the utility model provides, and stifled blanking plug is thrown in the band kill-job that reliability is high.
The technical solution of the utility model is: stifled blanking plug is thrown in the band kill-job, comprise fishing head, fishing head has cross through hole, the fishing head bottom has internal thread to connect center-pole, the center-pole outer cylinder surface with lift a matched in clearance and be connected, center-pole is connected by the pin that lifts be installed in through hole with lifting between seat, lifting a bottom has internal thread to connect neck bush, the neck bush outer cylinder surface is connected with wing plate support, two packing elements, two isolation baffle plates that packing element is middle in turn, neck bush end external screw thread connects the tail cap, between packing element and wing plate support; Between tail cap and packing element, be equipped with successively and set overcoat, slips, sheath and sheath baffle plate;
There are two grooves in the wing plate support outside, each groove inner hinge is connected with wing plate, the wing plate hinge axis is positioned at wing plate support bottom, the free side of wing plate is positioned at wing plate support upside, wing plate support outer cylinder surface has two symmetrical tapped through holes, be connected with and set pin in this tapped through hole, set the pin head and extend in two through holes corresponding on the neck bush tube wall;
The inwall that sets relative slips one side of overcoat is provided with interior notched teeth, and slips relatively sets overcoat one side and is provided with outer notched teeth.
Interior notched teeth is identical with outer notched teeth geomery, and the root diameter size of interior notched teeth and the crest diameter dimension of outer notched teeth are clearance fit relationship.
Slips and set between overcoat a segment distance is arranged, elastic compression distance when this distance is greater than packing element and expands by compression.
The utlity model has following beneficial effect: this blanking plug is by the mode of wire rope pulling, and the disposable blanking plug location that completes, set grappling, the operations such as bailing, the recyclable recycling in blanking plug top, have recoverable, cost is low, simple in structure, the reliable characteristics of grappling.
the accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model.
1-fishing head in figure, 2-lifts pin, and 3-lifts seat, and 4-sets pin, 5-wing plate support, 6-wing plate, notched teeth in 7-, the outer notched teeth of 8-, the 9-slips, the 10-sheath, the 11-packing element, 12-isolates baffle plate, 13-sheath baffle plate, the 14-neck bush, 15-sets overcoat, 16-tail cap, 17-center-pole.
the specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, stifled blanking plug is thrown in this band kill-job, comprise fishing head 1, fishing head 1 has cross through hole, fishing head 1 bottom has internal thread to connect center-pole 17, center-pole 17 outer cylinder surfaces with lift the seat 3 matched in clearance be connected, center-pole 17 with lift seat and be connected by the pin 2 that lifts be installed in through hole between 3, lifting seat 3 bottoms has internal thread to connect neck bush 14, neck bush 14 outer cylinder surfaces are connected with wing plate support 5 in turn, two packing elements 11, two isolation baffle plates 12 that packing element 11 is middle, neck bush 14 end external screw threads connect tail cap 16, between packing element 11 and wing plate support 5, between tail cap 16 and packing element 11, be equipped with successively and set overcoat 15, slips 9, sheath 10 and sheath baffle plate 13,
There are two grooves in wing plate support 5 outsides, each groove inner hinge is connected with wing plate 6, wing plate 6 hinge axis are positioned at wing plate support 5 bottoms, the free side of wing plate 6 is positioned at wing plate support 5 upsides, wing plate support 5 outer cylinder surfaces have two symmetrical tapped through holes, be connected with and set pin 4 in this tapped through hole, set pin 4 heads and extend in two through holes corresponding on neck bush 14 tube walls;
The inwall that sets overcoat 15 relative slips 9 one sides is provided with interior notched teeth 7, and slips 9 sets that overcoat 15 1 sides are provided with in outer notched teeth 8, two notched teeths outer contacting and interlock reaches the purpose set relatively.
Interior notched teeth 7 is identical with outer notched teeth 8 geomeries, and the root diameter size of interior notched teeth 7 and the crest diameter dimension of outer notched teeth 8 are clearance fit relationship, can reach interlock firm in the interlock of inside and outside notched teeth phase.
Transfer blanking plug, follow the tracks of well depth by the depth registration instrument, the position of blanking plug is positioned at below the design sealed depth, start the fishing head 1 of slow lifting blockage device by rope, shoulder in oil pipe produces and stops the wing plate 6 on blanking plug, blanking plug is blocked, can only descend and can not rise, continue the fishing head 1 of lifting blockage device, setting pin 4 cuts off, continue to lift fishing head 1, wing plate support 5, slips 9, set overcoat 15, sheath 10, sheath baffle plate 13 moves down along neck bush 14, packing element 11 expands and sets under the compression of both direction, set outer notched teeth 8 interlocks of interior notched teeth 7 and the slips 9 of overcoat 15, slips 9 grapplings, set complete.
Continue to lift fishing head 1, lift pin 2 and cut off, bailing 1, lifting-pulling cap 3 separate with blanking plug with center-pole 17, by winch wire, separating part are proposed to well head, complete once throw stifled.
This blanking plug is by the mode of wire rope pulling, and the disposable blanking plug location that completes, set, grappling, and the operations such as bailing, the recyclable recycling in blanking plug top, have recoverable, and cost is low, simple in structure, the reliable characteristics of grappling.
Claims (3)
1. stifled blanking plug is thrown in band kill-job, comprise fishing head (1), it is characterized in that: fishing head (1) has cross through hole, fishing head (1) bottom has internal thread to connect center-pole (17), center-pole (17) outer cylinder surface with lift the seat (a 3) matched in clearance be connected, center-pole (17) with lift seat and be connected by the pin (2) that lifts be installed in through hole between (3), lifting seat (3) bottom has internal thread to connect neck bush (14), neck bush (14) outer cylinder surface is connected with wing plate support (5) in turn, two packing elements (11), isolation baffle plate (12) in the middle of two packing elements (11), neck bush (14) end external screw thread connects tail cap (16), between packing element (11) and wing plate support (5), between tail cap (16) and packing element (11), be equipped with successively and set overcoat (15), slips (9), sheath (10) and sheath baffle plate (13),
There are two grooves in wing plate support (5) outside, each groove inner hinge is connected with wing plate (6), wing plate (6) hinge axis is positioned at wing plate support (5) bottom, the free side of wing plate (6) is positioned at wing plate support (5) upside, wing plate support (5) outer cylinder surface has two symmetrical tapped through holes, be connected with in this tapped through hole and set pin (4), set pin (4) head and extend in two through holes corresponding on neck bush (14) tube wall;
The inwall that sets relative slips (9) one sides of overcoat (15) is provided with interior notched teeth (7), and slips (9) relatively sets overcoat (15) one sides and is provided with outer notched teeth (8).
2. stifled blanking plug is thrown in band kill-job according to claim 1, it is characterized in that: interior notched teeth (7) is identical with outer notched teeth (8) geomery, and the crest diameter dimension of the root diameter size of interior notched teeth (7) and outer notched teeth (8) is clearance fit relationship.
3. stifled blanking plug is thrown in band kill-job according to claim 1, it is characterized in that: slips (9) and set between overcoat (15) segment distance is arranged, this distance is greater than the elastic compression distance of packing element (11) while expanding by compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437524 CN203347739U (en) | 2013-07-23 | 2013-07-23 | Under pressure well plug-injection type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437524 CN203347739U (en) | 2013-07-23 | 2013-07-23 | Under pressure well plug-injection type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347739U true CN203347739U (en) | 2013-12-18 |
Family
ID=49747649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320437524 Expired - Lifetime CN203347739U (en) | 2013-07-23 | 2013-07-23 | Under pressure well plug-injection type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275439A (en) * | 2015-10-26 | 2016-01-27 | 中国石油天然气股份有限公司 | Water injection well operation hanging type water distributor blowout prevention blockage device |
-
2013
- 2013-07-23 CN CN 201320437524 patent/CN203347739U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275439A (en) * | 2015-10-26 | 2016-01-27 | 中国石油天然气股份有限公司 | Water injection well operation hanging type water distributor blowout prevention blockage device |
| CN105275439B (en) * | 2015-10-26 | 2018-01-05 | 中国石油天然气股份有限公司 | Water filling well operations hanging injection well downhole flow regulator blowout plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |