CN102926678B - The long anti-casing corrosion Well-cleaning protection device of tail pipe - Google Patents
The long anti-casing corrosion Well-cleaning protection device of tail pipe Download PDFInfo
- Publication number
- CN102926678B CN102926678B CN201210503843.4A CN201210503843A CN102926678B CN 102926678 B CN102926678 B CN 102926678B CN 201210503843 A CN201210503843 A CN 201210503843A CN 102926678 B CN102926678 B CN 102926678B
- Authority
- CN
- China
- Prior art keywords
- tap
- isocon
- valve seat
- sprue
- packer
- 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.)
- Active
Links
Abstract
A kind of anti-casing corrosion Well-cleaning protection device of long tail pipe, there is cavity in upper tap, valve ball is placed in cavity, valve seat is arranged in upper tap, isocon top is connected with upper tap lower internal thread, withstand the lower surface of valve seat in isocon upper surface, plug is connected with upper tap, upper tap, packer, lower tap is sequentially connected, in the lower tap endoporus of isocon bottom insertion, sealing ring is installed between isocon and lower tap, there is side outlet on upper tap, there is upper vertical-sprue on upper tap, circular passage is formed between isocon and packer, there is lateral import on lower tap, there is lower vertical-sprue on lower tap, the present invention can be supported the use with the anti-casing corrosion pumping pipe string of long tail pipe, casing corrosion can be prevented, also oil reservoir can be prevented to be contaminated in well-flushing.
Description
Technical field
The present invention is the Underwell oil production tool of petroleum industry, is a kind of anti-casing corrosion Well-cleaning protection device of long tail pipe.
Background technology
Current pumping pipe string is usually by oil reservoir, during oil pumping, well liquid is from ground laminar flow under the suction inlet of oil well pump
To sleeve pipe, then upwards to moving, the suction inlet through oil well pump is flowed in oil well pump.Well liquid is flowing to the suction inlet of oil well pump this section
In distance, the well liquid of flowing will be contacted with internal surface of sleeve pipe, and the ore deposit that is corrosive is dissolved in certain water, water due to containing in well liquid
Thing, can produce corrosion to this section of sleeve pipe flowed through, and the service life of reentrant bushing, influence oil field development production produces oil field
Heavy economic losses.In order to solve this problem, oil field employs the anti-casing corrosion pumping pipe string of long tail pipe.Viscous crude, wax deposition,
Oil well could be maintained normal, it is necessary to often carry out hot water circuit well-flushing to oil pipe on oil well pump and oil well pump in deep pumpingh well production
Production.In the anti-casing corrosion pumping pipe string of long tail pipe, sleeve pipe is UNICOM with oil reservoir, and well-flushing pressure is general all very high, to oil
Layer is produced compared with high back pressure, and well-flushing water is easily accessible oil reservoir, and on the one hand water-sensitive reservoir is damaged, and kills oil reservoir, makes oil reservoir
It is not fuel-displaced；On the other hand increase well-flushing water consumption, duration of well flushing is long, increase manpower and materials.Therefore, this anti-casing corrosion oil pick-up tube
Post can not be supported the use with existing Flushing tubular column.
The content of the invention
The purpose of the present invention is a kind of long anti-casing corrosion Well-cleaning protection device of tail pipe of design, with the anti-casing corrosion of long tail pipe
When pumping pipe string is supported the use, it can prevent flushing fluid from entering stratum, it is to avoid oil layer pollution.
The object of the present invention is achieved like this：Including plug, upper tap, valve ball, valve seat, isocon, packer,
Have in sealing ring, lower tap, upper tap and valve ball is placed in cavity, cavity, valve seat is arranged in upper tap, point
Flow tube top is connected with upper tap lower internal thread, and the lower surface of valve seat, the upper surface of valve seat are withstood in isocon upper surface
It is pressed in the inner circular bead of tap, valve ball falls to be sitting in the upper port of valve seat, the lower thread of plug connects with upper shunting
The upper internal threaded connection of head, the lower external thread of upper tap be threadedly coupled with the top of packer, packer bottom and
In lower tap top connection, the lower tap endoporus of isocon bottom insertion, installed between isocon and lower tap
Having on sealing ring, upper tap on side outlet, upper tap has upper vertical-sprue, is formed between isocon and packer
Having on circular passage, lower tap on lateral import, lower tap has lower vertical-sprue, and side outlet is communicated with cavity,
Plug is solid, and lateral import, endoporus, isocon, valve seat are communicated, and the bottom of endoporus is obstructed, and upper vertical-sprue, annular are logical
Road, lower vertical-sprue are communicated.
The beneficial effects of the invention are as follows：After packer sealing sleeve pipe, flushing fluid can not enter stratum by valve ball, oil reservoir
Well liquid can be flowed into the pump of anti-casing corrosion pumping pipe string by lower vertical-sprue, circular passage, upper vertical-sprue, therefore,
The present invention can be supported the use with the anti-casing corrosion pumping pipe string of long tail pipe, can be prevented casing corrosion, can also be prevented in well-flushing
Oil reservoir is contaminated, with significant economic benefit.
Brief description of the drawings
Fig. 1 is the structure chart of the embodiment of the present invention.
Embodiment
Embodiments of the invention are illustrated below in conjunction with the accompanying drawings.
Embodiments of the invention include plug 1, upper tap 2, valve ball 4, valve seat 5, isocon 6, packer 7, sealing
Have in circle 8, lower tap 9, upper tap 2 and valve ball 4 is placed in cavity 11, cavity 11, valve seat 5 is arranged on upper tap
In 2, the top of isocon 6 is connected with the upper lower internal thread of tap 2, and the lower surface of valve seat 5, valve are withstood in the upper surface of isocon 6
The upper surface of seat 5 is pressed in the inner circular bead of tap 2, and valve ball 4 falls to be sitting in the upper port of valve seat 5, the bottom of plug 1
Screw thread is connected with the upper internal threaded of upper tap 2, valve ball 4 is opened under a certain pressure, outside the bottom of upper tap 2
Screw thread is threadedly coupled with the top of packer 7, and the bottom of packer 7 is connected with the lower top of tap 9, the insertion of the bottom of isocon 6
In the endoporus 15 of lower tap 9, sealing ring 8 is installed between isocon 6 and lower tap 9, for sealing isocon 6 with
Having on gap between tap 9, upper tap 2 on side outlet 3, upper tap 2 has upper vertical-sprue 12, shunting
Formed to have on lateral import 10, lower tap 9 on circular passage 13, lower tap 9 between pipe 6 and packer 7 and have lower perpendicular
To runner 14, side outlet 3 is communicated with cavity 11, and plug 1 is solid, lateral import 10, endoporus 15, isocon 6, valve seat 5
Communicate, the bottom of endoporus 15 is obstructed, upper vertical-sprue 12, circular passage 13, lower vertical-sprue 14 are communicated.
The present invention is connected under the oil well pump of the anti-casing corrosion pumping pipe string of long tail pipe, when being pumped after packer setting,
The oil water mixture that oil reservoir is flowed into sleeve pipe is flowed into flowing down after tail pipe from lower vertical-sprue, circular passage, upper vertical-sprue
It is extracted in the pump of anti-casing corrosion pumping pipe string, the crude oil separated is through lateral import 10, endoporus 15, isocon 6, valve seat
5 opening valve balls are flowed in the sleeve pipe on packer from side outlet 3, and anti-corrosion protection is carried out to sleeve pipe.During well-flushing, flushing fluid
Squeezed into out of sleeve pipe, oil reservoir will not be entered from lateral import 10 under valve ball effect, oil reservoir is protected not being contaminated.
Claims (1)
1. a kind of rotten Well-cleaning protection device of the anti-sleeve pipe of long tail pipe, it is characterized in that：Including plug（1）, upper tap（2）, valve ball
（4）, valve seat（5）, isocon（6）, packer（7）, sealing ring（8）, lower tap（9）, upper tap（2）Inside there is cavity
（11）, cavity（11）Interior placement valve ball（4）, valve seat（5）Installed in upper tap（2）It is interior, isocon（6）Top and upper shunting
Joint（2）Lower internal thread is connected, isocon（6）Withstand valve seat in upper surface（5）Lower surface, valve seat（5）Upper surface be pressed in
Upper tap（2）Inner circular bead on, valve ball（4）Fall to be sitting in valve seat（5）Upper port on, plug（1）Lower thread with
Upper tap（2）Upper internal threaded connection, upper tap（2）Lower external thread and packer（7）Top screw thread
Connection, packer（7）Bottom and lower tap（9）Top is connected, isocon（6）The lower tap of bottom insertion（9）Endoporus
（15）In, isocon（6）With lower tap（9）Between sealing ring is installed（8）, upper tap（2）On have side outlet
（3）, upper tap（2）On have upper vertical-sprue（12）, isocon（6）With packer（7）Between form circular passage（13）,
Lower tap（9）On have lateral import（10）, lower tap（9）On have lower vertical-sprue（14）, side outlet（3）With sky
Chamber（11）Communicate, plug（1）For solid, lateral import（10）, endoporus（15）, isocon（6）, valve seat（5）Communicate, endoporus
（15）Bottom it is obstructed, upper vertical-sprue（12）, circular passage（13）, lower vertical-sprue（14）Communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210503843.4A CN102926678B (en) | 2012-12-02 | 2012-12-02 | The long anti-casing corrosion Well-cleaning protection device of tail pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210503843.4A CN102926678B (en) | 2012-12-02 | 2012-12-02 | The long anti-casing corrosion Well-cleaning protection device of tail pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926678A CN102926678A (en) | 2013-02-13 |
| CN102926678B true CN102926678B (en) | 2017-08-25 |
Family
ID=47641590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210503843.4A Active CN102926678B (en) | 2012-12-02 | 2012-12-02 | The long anti-casing corrosion Well-cleaning protection device of tail pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102926678B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113588A (en) * | 2018-10-23 | 2019-01-01 | 董刚 | A kind of extraction underground heat hollow rod |
| CN112483038B (en) * | 2020-11-16 | 2022-08-12 | 东营百华石油技术开发有限公司 | Washable well slip supporting packer and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136322Y (en) * | 1992-09-22 | 1993-06-16 | 吴俊辉 | Flush coupling |
| CN2687319Y (en) * | 2003-12-24 | 2005-03-23 | 尹婷 | One-way flow flushing packer |
| US7387176B2 (en) * | 2004-05-08 | 2008-06-17 | Mellott Joseph C | Down hole air diverter |
| CN202417410U (en) * | 2012-01-01 | 2012-09-05 | 孙卫娟 | Well washing packer |
| CN202926246U (en) * | 2012-12-02 | 2013-05-08 | 中国石油化工股份有限公司 | Long-tail-pipe casing-corrosion-preventing well flushing protection device |
-
2012
- 2012-12-02 CN CN201210503843.4A patent/CN102926678B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136322Y (en) * | 1992-09-22 | 1993-06-16 | 吴俊辉 | Flush coupling |
| CN2687319Y (en) * | 2003-12-24 | 2005-03-23 | 尹婷 | One-way flow flushing packer |
| US7387176B2 (en) * | 2004-05-08 | 2008-06-17 | Mellott Joseph C | Down hole air diverter |
| CN202417410U (en) * | 2012-01-01 | 2012-09-05 | 孙卫娟 | Well washing packer |
| CN202926246U (en) * | 2012-12-02 | 2013-05-08 | 中国石油化工股份有限公司 | Long-tail-pipe casing-corrosion-preventing well flushing protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102926678A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203285416U (en) | Downhole oil-water separation device of double electric submersible pump | |
| CN201705249U (en) | Continuous jet blockage-removing string for horizontal wells | |
| WO2014190518A1 (en) | Negative pressure combined-sand-washing and forced-sand-discharging device | |
| EA200971134A1 (en) | HYDROCARBONS | |
| CN203626759U (en) | Production pipe column with electric submersible pump and jet pump jointly lifted | |
| CN102926678B (en) | The long anti-casing corrosion Well-cleaning protection device of tail pipe | |
| CN103061724B (en) | Towards the layering pressure control associating mining device easily telling powder and telling the two coal seam of sand | |
| CN102817594B (en) | Horizontal well water pumping gas production method and device | |
| RU115408U1 (en) | INSTALLATION FOR SIMULTANEOUSLY SEPARATE DEVELOPMENT OF TWO OPERATING OBJECTS ONE WELL | |
| CN106285620B (en) | High gas-oil ratio (HGOR) oil well gas-liquid piece-rate system | |
| CN203420679U (en) | Large-displacement composite lifting system for deep well and extra deep well | |
| CN201915930U (en) | Tee joint special for thermal recovery | |
| CN205400675U (en) | Hydraulic pressure switching tool in pit | |
| CN202360051U (en) | Safe bidirectional well washing valve | |
| CN202926307U (en) | Well washing protective gas anchor | |
| CN204703809U (en) | A kind of water supply well concentric double pipe sand-flushing process pipe string | |
| CN202926246U (en) | Long-tail-pipe casing-corrosion-preventing well flushing protection device | |
| CN206346723U (en) | A kind of mining device of electric submersible oil reciprocation pump on Oil/gas Well | |
| CN204003391U (en) | Solid plunger sand-proof oil-well pump | |
| CN202531415U (en) | Phi 25-millimeter small displacement solid plunger piston oil-well pump | |
| CN206468326U (en) | Relay-type discharges the device of medicament in a kind of pumpingh well | |
| CN203129997U (en) | Anti-backflow sand-washing check valve | |
| CN204283336U (en) | A kind of laterally opened ball-and-seat | |
| CN201016402Y (en) | Deposition-proof uniflow valve | |
| CN218454727U (en) | Full-drift-diameter normal flushing packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |