CN101498205B - Horizontal well washing valve blocking apparatus - Google Patents
Horizontal well washing valve blocking apparatus Download PDFInfo
- Publication number
- CN101498205B CN101498205B CN2009100146093A CN200910014609A CN101498205B CN 101498205 B CN101498205 B CN 101498205B CN 2009100146093 A CN2009100146093 A CN 2009100146093A CN 200910014609 A CN200910014609 A CN 200910014609A CN 101498205 B CN101498205 B CN 101498205B
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- China
- Prior art keywords
- horizontal well
- well
- washing valve
- blocking apparatus
- well washing
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- 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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Abstract
The invention discloses a blocker for a well-washing valve of a horizontal well for petroleum industry, which is used for blocking a well-washing valve in a well-completion pipe column of a sieve pipe of a horizontal well and providing a technical means for the sand-outlet treatment of the well-washing valve of the late stage of the well completion of a sieve pipe of a horizontal well. The blocker for a well-washing valve of a horizontal well comprises a descent mechanism and a blocking mechanism which are connected. The invention has simple structure and convenient on-site operation and control, prevents the blocking mechanism from being blocked in the descent process by designing a cylinder sleeve with protective function, and improves the safety and the reliability of construction. When the invention is used for treating the sand-outlet problem of the well-washing valve of the well completion of the horizontal well, the effect is obvious and the operability is strong. In addition, the invention has simple structure, low device cost, few technical processes of on-site construction, simple operation and effective reduction of production cost.
Description
Technical field
The present invention relates to the downhole tool of petroleum industry horizontal well, particularly horizontal well washing valve blocking apparatus, be used for the sieve tube completion tubular column of horizontal well, the shutoff flushing valve provides technological means for horizontal well sieve tube completion later stage flushing valve shakes out to administer.
Background technology
Horizontal well technology as old filed adjustment tap the latent power and improve the important technology that recovery ratio, find realize the efficient exploitation of few well.By strengthening the meticulous geological research and the research of horizontal well supporting technology, horizontal well technology is used scale and is enlarged rapidly in recent years, and technical level improves greatly.But, carrying out the horizontal well sieve tube completion later stage when causing shaking out, make the horizontal well producing well sand card accident occur at present because of the flushing valve ball seat is poorly sealed, can not ordinary production.Can only near flushing valve, be lowered to horizontal well and carry out shutoff with packer, this technology cost is higher, execute-in-place is also comparatively complicated, therefore develop and a kind ofly can make flushing valve reseal and simple, the lower-cost calker of execute-in-place, become the one preferred technique means that horizontal well sieve tube completion later stage flushing valve shakes out and administers.
Summary of the invention
The object of the invention provides horizontal well washing valve blocking apparatus, is used for the horizontal well sieve tube completion tubular column, utilizes this instrument shutoff flushing valve ball seat, realizes the sealing to horizontal well washing valve ball seat, administers the phenomenon of shaking out of flushing valve.
Implement the present technique solution and can reach above-mentioned purpose: horizontal well washing valve blocking apparatus comprises and is lowered to mechanism and blockage mechanism, is lowered to mechanism and is connected with blockage mechanism, seals flushing valve in well.
The present invention has following significant effect:
1, the present invention is simple in structure, is convenient to execute-in-place control;
2, blockage mechanism and salvaging office are rational in infrastructure, can realize the shutoff once more to flushing valve, can trip out when not needing obstruction to carry out well-flushing work again, and apparatus of the present invention can also reuse.
3, designed cylinder sleeve, avoided blockage mechanism in the process of going into the well, to be hampered, strengthened the security reliability of construction with defencive function.
4, the problem of shaking out of using the present invention to administer the horizontal well completion tubular pile flushing valve, effect is remarkable, and is workable.Simple in structure, installation cost is low.The activities of site operation is few, simple to operate, effectively reduces cost of production.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an enforcement principle schematic of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is done further detailed description: referring to Fig. 1, horizontal well washing valve blocking apparatus comprises and is lowered to mechanism and blockage mechanism, is lowered to mechanism and is connected with blockage mechanism.Be lowered to mechanism and comprise top connection 1, upper center tube 2, lower center tube 5, cylinder sleeve 6, spring 3 and spring base 4, upper center tube 2 is connected with lower center tube 5, and spring 3 is installed between top connection 1 and the spring base 4, and spring base 4 bottoms connect cylinder sleeve 6.Lower center tube 5 is provided with liquid flow hole and shear pin hole, and its liquid flow hole can return to ground the well liquid that is collected in the process of going into the well in this device from centre bore.Blockage mechanism comprises positioning sleeve 8, stops up housing 10 and salvages office, stops up housing 10 and is connected with salvaging office with positioning sleeve 8.Stop up housing 10 1 ends and be provided with startup pin 9, the other end is provided with salvages shear pin 12, thereunder also is provided with the salvaging chute on the housing.Start pin 9 and salvage shear pin 12 fixing with lower center tube 5 and salvaging office respectively.Salvage office and comprise fishing rod 7, lance pawl 13 and torsion spring 14, lance pawl 13 and torsion spring 14 are fixed on the lower end of fishing rod 7 by lance pawl axle 15.Fishing rod 7 upper ends are provided with fishing head, and fishing rod 7 middle part cylindricals and obstruction housing 10 middle part cylindricals are provided with seal 11, and this blocking device is played the double seal effect, and 11 pairs of flushing valves of seal that the back of going into the well is simultaneously stopped up on the housing 10 seal.Circle respective outer side edges in the top of lance pawl 13 and flushing valve ball seat 20, blockage mechanism is connected also hidden in the cylinder sleeve 6 that is lowered to mechanism by starting pin 9 with the lower center tube 5 that is lowered to mechanism.
Referring to Fig. 2, down-hole string comprises casing coupling 16 and screen casing 18, and flushing valve comprises flushing valve socket 17, flushing valve top connection 19 and flushing valve ball seat 20, and flushing valve is installed in the screen casing 18.During on-the-spot the use, the present invention is connected the not end of running string, when this device behind flushing valve socket 17 positions, continue to transfer tubing string, make on cylinder sleeve 6 and the spring base 4 promotion springs 3 and move, the blockage mechanism of this device is entered in the flushing valve.Lance pawl 13 ejects under the effect of torsion spring 14, is fixed on the flushing valve ball seat 20.The upper lifting pipe post will start shear pin 9 and interrupt this moment, and blockage mechanism and lower center tube 5 are disconnected, and blockage mechanism is with the well-flushing passage plugging of flushing valve.The upper lifting pipe post proposes the mechanism that is lowered to of the present invention.When needs are pulled blockage mechanism out, drag for the fishing head of fishing rod 7 upper ends with special fishing tool, will salvage shear pin 12 in the process and cut off last carrying.Along with carrying on the fishing rod 7, lance pawl 13 is withdrawn under the effect of torsion spring 14 and is stopped up in the salvaging chute of housing 10, and it is together up to drive obstruction housing 10 and positioning sleeve 8, pulls blockage mechanism out ground.This moment, the well-flushing passage of horizontal well completion tubular pile was unobstructed, can carry out next step well-flushing program.
Claims (7)
1. horizontal well washing valve blocking apparatus is characterized in that this blocking device comprises to be lowered to mechanism and blockage mechanism, is lowered to mechanism and is connected with blockage mechanism; It is lowered to mechanism and comprises top connection (1), upper center tube (2), lower center tube (5), cylinder sleeve (6), spring (3) and spring base (4), upper center tube (2) is connected with lower center tube (5), spring (3) is installed between top connection (1) and the spring base (4), and spring base (4) bottom connects cylinder sleeve (6); Its blockage mechanism comprises positioning sleeve (8), stops up housing (10) and salvages office, stops up housing (10) and is connected with salvaging office with positioning sleeve (8).
2. horizontal well washing valve blocking apparatus according to claim 1 is characterized in that lower center tube (5) is provided with liquid flow hole and shear pin hole.
3. horizontal well washing valve blocking apparatus according to claim 1, it is characterized in that stopping up housing (10) one ends and be provided with startup pin (9), the other end is provided with salvages shear pin (12), and the middle part cylindrical is provided with seal (11), thereunder also is provided with the salvaging chute on the housing.
4. horizontal well washing valve blocking apparatus according to claim 3 is characterized in that starting pin (9) and salvages shear pin (12) fixing with lower center tube (5) and salvaging office respectively.
5. horizontal well washing valve blocking apparatus according to claim 1 is characterized in that salvaging office and comprises fishing rod (7), lance pawl (13) and torsion spring (14), and lance pawl (13) and torsion spring (14) are fixing by lance pawl axle (15).
6. horizontal well washing valve blocking apparatus according to claim 5 is characterized in that fishing rod (7) upper end is provided with fishing head, and its middle part cylindrical is provided with seal (11).
7. horizontal well washing valve blocking apparatus according to claim 3 is characterized in that blockage mechanism is connected also hidden in being lowered to the cylinder sleeve of mechanism (6) by starting pin (9) with the lower center tube that is lowered to mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100146093A CN101498205B (en) | 2009-02-25 | 2009-02-25 | Horizontal well washing valve blocking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100146093A CN101498205B (en) | 2009-02-25 | 2009-02-25 | Horizontal well washing valve blocking apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101498205A CN101498205A (en) | 2009-08-05 |
| CN101498205B true CN101498205B (en) | 2011-12-14 |
Family
ID=40945456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100146093A Expired - Fee Related CN101498205B (en) | 2009-02-25 | 2009-02-25 | Horizontal well washing valve blocking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498205B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343409A (en) * | 2013-08-09 | 2015-02-11 | 韩成才 | Blocking device at bottom of tubular column of tubular pump for snubbing workover operation |
| CN107939334B (en) * | 2017-11-03 | 2020-03-17 | 西南石油大学 | Plunger type expansion packer |
| CN112443285B (en) * | 2019-09-02 | 2023-04-25 | 中国石油天然气股份有限公司 | Sand control device capable of replacing slurry outside pipe and slurry replacing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2323111A (en) * | 1997-02-04 | 1998-09-16 | Specialised Petroleum Serv Ltd | A valve |
| CN2732990Y (en) * | 2004-08-19 | 2005-10-12 | 辽河石油勘探局 | Blanking plug for hollow water distributor |
| CN2846722Y (en) * | 2005-04-15 | 2006-12-13 | 辽河石油勘探局 | Track type small diameter oil pipe blanking plug |
| 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 |
| CN201092852Y (en) * | 2006-04-20 | 2008-07-30 | 廊坊开发区华泰油田新技术有限公司 | Throwing-dragging type unaflow valve blocking machine |
-
2009
- 2009-02-25 CN CN2009100146093A patent/CN101498205B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2323111A (en) * | 1997-02-04 | 1998-09-16 | Specialised Petroleum Serv Ltd | A valve |
| CN2732990Y (en) * | 2004-08-19 | 2005-10-12 | 辽河石油勘探局 | Blanking plug for hollow water distributor |
| CN2846722Y (en) * | 2005-04-15 | 2006-12-13 | 辽河石油勘探局 | Track type small diameter oil pipe blanking plug |
| CN201092852Y (en) * | 2006-04-20 | 2008-07-30 | 廊坊开发区华泰油田新技术有限公司 | Throwing-dragging type unaflow valve blocking machine |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101498205A (en) | 2009-08-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20200225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |