CN101781976A - Snubbing oil pipe plugging device for injection well - Google Patents
Snubbing oil pipe plugging device for injection well Download PDFInfo
- Publication number
- CN101781976A CN101781976A CN200910023151A CN200910023151A CN101781976A CN 101781976 A CN101781976 A CN 101781976A CN 200910023151 A CN200910023151 A CN 200910023151A CN 200910023151 A CN200910023151 A CN 200910023151A CN 101781976 A CN101781976 A CN 101781976A
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- main body
- oil pipe
- sealing ring
- snubbing
- injection well
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Abstract
The invention relates to a snubbing oil pipe plugging device for an injection well, which comprises a main body 5. The head part of the main body 5 is provided with a hook 1, the outer surface of the part of the main body 5 below the hook 1 is sleeved with a serrated block 2, a sealing ring 3 and an extrusion block 4 in sequence, and the tail part of the main body 5 is connected with a cone 6. The invention can be placed into a blow-out prevention pipe and reaches a preset location by hooking the hook 1 with a steel rope. When the high-pressure and high-speed water flow impacts the cone 6, the tail claw of the main body can be unfolded to clamp the pipe wall, and when the high-pressure and high-speed water flow impacts the extrusion block 4, the extrusion block 4 can extrude the sealing ring 3 to expand the sealing ring 3 and increase the diameter of the sealing ring 3, so as to achieve the sealing effect. The invention has the advantages of simple structure and convenient use.
Description
Technical field
The present invention relates to a kind of blanking plug, particularly a kind of Snubbing oil pipe plugging device for injection well.
Background technology
When not kill-job of water injection well workover treatment, usually needed flowline to overhaul, the water under high pressure of water injection well fails to be convened for lack of a quorum and is sprayed onto ground by oil pipe, not only pollutes the environment, and also can increase the time that trips out of oil pipe, thereby brings very big difficulty to well workover.For solving this difficult problem, need the technician to use special tool usually.But because the most of tube inner wall fouling of water injection well is serious, not in place under the blocking device, plug depth is more shallow, has made that the flowline time is longer, adds frequent pulling blanking plug often, and it is long to account for the well cycle, and operating efficiency is low, has influenced the progress of workover treatment.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the object of the present invention is to provide a kind of Snubbing oil pipe plugging device for injection well, solved that existing blanking plug is more shallow because of the depth of setting that the oil pipe fouling seriously causes, the oil pipe take-off time is long and has got the too many problem of dress number of times.
In order to achieve the above object, technical scheme of the present invention is achieved in that a kind of Snubbing oil pipe plugging device for injection well, comprise main body 5, the head of main body 5 is equipped with hook 1, be socketed with tooth piece 2, sealing ring 3 and crushing block 4 successively on the external surface of the sub-body 5 of hook 1, the afterbody of main body 5 is connected with cone 6.
Main body 5 is provided with expansible tail pawl 7 with the junction of cone 6.
Described sealing ring 3 has elasticity, and diameter can rise greatly when stressed.
The interior diameter of described sealing ring 3 also is less than the external diameter of tooth piece 2 when maximum rating.
Because the present invention is provided with sealing ring 4, so play the effect of stopping up oil pipe inner high voltage current; Because main body 5 is provided with expansible tail pawl 7 with the junction of cone 6, so when cone 6 is stressed, play the effect that struts with closed main body tail pawl 7.
The present invention is simple in structure, and is easy to use.
Description of drawings
Accompanying drawing is a structure principle chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operating principle are described in detail.
With reference to accompanying drawing, a kind of Snubbing oil pipe plugging device for injection well, comprise main body 5, the head of main body 5 is equipped with hook 1 by being threaded, be socketed with tooth piece 2, sealing ring 3 and crushing block 4 successively on the external surface of the sub-body 5 of hook 1, sealing ring 3 has elasticity, diameter can rise greatly when stressed, but the interior diameter of sealing ring 3 also is less than the external diameter of tooth piece 2 when maximum rating, mainly be that preventer comes off, the afterbody of main body 5 is by the cone 6 that has been threaded, and the junction is provided with expansible tail pawl 7.
Operating principle of the present invention is: owing on the oil pipe lubricator is installed, last lower valve and pulley are up and down arranged on the lubricator, open the last valve on the lubricator, hook by wire rope and link up with 1 the present invention put into lubricator, connect steel wire and pulley; Valve is closed in the pass, when the present invention arrives the precalculated position, open the tail gates of lubricator, when high-voltage high-speed water impact cone 6, the tail pawl 7 that struts main body 5 makes its chucking tube wall, and high-voltage high-speed current pinch shock crushing block 4, crushing block 4 crush seal circles 3, make it to expand, it is big that diameter becomes, and reaches sealing; Finish using, after will containing oil pipe of the present invention and tripping out ground, take out.
Claims (4)
1. Snubbing oil pipe plugging device for injection well, comprise main body (5), it is characterized in that, the head of main body (5) is equipped with hook (1), be socketed with tooth piece (2), sealing ring (3) and crushing block (4) successively on the external surface of the sub-body (5) of hook (1), the afterbody of main body (5) is connected with cone (6).
2. a kind of Snubbing oil pipe plugging device for injection well according to claim 1 is characterized in that, main body (5) is provided with expansible tail pawl (7) with the junction of cone (6).
3. a kind of Snubbing oil pipe plugging device for injection well according to claim 1 is characterized in that, described sealing ring (3) has elasticity, and diameter can rise greatly when stressed.
4. a kind of Snubbing oil pipe plugging device for injection well according to claim 1 is characterized in that, the interior diameter of described sealing ring (3) also is less than the external diameter of tooth piece (2) when maximum rating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910023151A CN101781976A (en) | 2009-06-30 | 2009-06-30 | Snubbing oil pipe plugging device for injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910023151A CN101781976A (en) | 2009-06-30 | 2009-06-30 | Snubbing oil pipe plugging device for injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101781976A true CN101781976A (en) | 2010-07-21 |
Family
ID=42522120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910023151A Pending CN101781976A (en) | 2009-06-30 | 2009-06-30 | Snubbing oil pipe plugging device for injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101781976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899962A (en) * | 2010-05-14 | 2010-12-01 | 濮阳市益新石油技术有限公司 | Throwing type oil pipe overflow controller |
| CN117303507A (en) * | 2023-10-04 | 2023-12-29 | 山东沣纳环保科技有限公司 | Sea water reverse osmosis desalination sealing pipeline and production method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2752428Y (en) * | 2004-12-10 | 2006-01-18 | 吉林石油集团有限责任公司 | Water injection well blowout preventing job oil tube internal plugs |
| CN201071701Y (en) * | 2006-12-05 | 2008-06-11 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Hydraulic blocking device of oil pipe |
-
2009
- 2009-06-30 CN CN200910023151A patent/CN101781976A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2752428Y (en) * | 2004-12-10 | 2006-01-18 | 吉林石油集团有限责任公司 | Water injection well blowout preventing job oil tube internal plugs |
| CN201071701Y (en) * | 2006-12-05 | 2008-06-11 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Hydraulic blocking device of oil pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899962A (en) * | 2010-05-14 | 2010-12-01 | 濮阳市益新石油技术有限公司 | Throwing type oil pipe overflow controller |
| CN117303507A (en) * | 2023-10-04 | 2023-12-29 | 山东沣纳环保科技有限公司 | Sea water reverse osmosis desalination sealing pipeline and production method thereof |
| CN117303507B (en) * | 2023-10-04 | 2024-02-13 | 山东沣纳环保科技有限公司 | Sea water reverse osmosis desalination sealing pipeline and production method thereof |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100721 |