CN2276072Y - Multifunctional well-flushing valve - Google Patents
Multifunctional well-flushing valve Download PDFInfo
- Publication number
- CN2276072Y CN2276072Y CN 96228974 CN96228974U CN2276072Y CN 2276072 Y CN2276072 Y CN 2276072Y CN 96228974 CN96228974 CN 96228974 CN 96228974 U CN96228974 U CN 96228974U CN 2276072 Y CN2276072 Y CN 2276072Y
- Authority
- CN
- China
- Prior art keywords
- valve
- cone
- flushing
- seat
- top connection
- 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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- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The utility model provides a multifunctional well flushing valve. The multifunctional well flushing valve widens the function of the existing sliding sleeve well flushing valve. A balanceable valve is radially designed on an upper joint. A linked cone valve is designed on a sliding valve. The sliding valve, the linked cone valve, and the balanceable valve are organically combined together, and thereby, the multifunctional well flushing valve not only has the functions of well backwashing and oil layer protection, but also has a dynamic liquid level display function in the technologies of negative pressure oil extraction, etc.
Description
The utility model belongs to the kit of down-hole pump in the oil field development.
On-the-spot at present this type of instrument that uses, structure is last lower contact, connect guiding valve, central tube, cylinder sleeve, stage clip and sealing ring etc. therebetween, form the sleeve type flushing valve, though can clean wellbore operations preferably, but this class flushing valve weak point is: (1) flushing valve connects on pump, then can not wash pump; (2) flushing valve connects under pump, then can make flushing fluid enter oil reservoir and polluted reservoir, and serious situation can cause oil well to stop production, and has to carry out special operation, consumes great amount of manpower and material resources.
The purpose of this utility model is to overcome the problem that above-mentioned prior art exists, and provides a kind of multi-functional flushing valve for further widening its scope of application simultaneously.
The purpose of this utility model reaches like this: the multi-functional flushing valve that comprises top connection, sealing ring, guiding valve, central tube, stage clip, cylinder sleeve, lower contact, equalizing valve and cone valve.Radially stepped hole is arranged in its top connection, and as valve seat, the formation equalizing valve that matches with the balance valve body can make oil pipe and sleeve pipe annular space be communicated with oil pipe space fluid under the pump.The hollow wall of guiding valve has a shoulder, and the cone valve seat thereon.Cone angle matched with cone valve as valve seat in the upper end of central tube was, and constituted cone valve.Simultaneously, the chain effect of cone valve and guiding valve makes cone valve be in normally open, has guaranteed the normal seat envelope of hydraulic base sealed packer.
The purpose of this utility model can also reach by following measure: equalizing valve valve body one end is a cone, and the other end is a cylinder, and conical section matches with the radially stepped hole step of top connection, and barrel portion is connected in top connection radially in the stepped hole.Equalizing valve valve body column part has the axial hole that links to each other with the cone radial hole, and it communicates with oil pipe and sleeve pipe annular space.The cone valve valve body is a truncated cone-shaped cone, the partly axial circle distribution through hole of its round platform, and seat is on guiding valve inwall shoulder; Conical section matches with the inner cone angle valve seat of central tube upper end, and simultaneously, cone valve and guiding valve are chain, and cone valve cut out when promptly guiding valve was opened, and vice versa.
The utility model accompanying drawing drawing is described as follows:
Accompanying drawing is that multi-functional flushing valve partly cuts open elevation.
Among the figure: 1-top connection; 2-balance valve body;
3-cone valve; 4-sealing ring;
5-guiding valve; 6-central tube;
7-stage clip; 8-cylinder sleeve;
9-lower contact; 10-shoulder;
11-balance valve seat; 12-conical valve base.
Be further described below in conjunction with embodiment:
Top connection (1) one end has the screw thread that connects with the top oil pipe, and the other end links to each other with cylinder sleeve (8).Radially threaded stepped hole is arranged as balance valve seat (11) in the top connection, match with balance valve body (2) and constitute equalizing valve.Sealing ring (4) is arranged on the guiding valve (5), a shoulder (10) is arranged on the hollow wall of guiding valve, cone valve (3) seat thereon.When guiding valve was in closed condition, sealing ring laid respectively at the both sides up and down of cylinder sleeve (8) elongated hole, and cone valve is held by the shoulder of guiding valve inwall.The upper end of central tube (6) is interior cone angle, as conical valve base (12), and the formation that matches with cone valve cone valve, and link to each other with lower contact (9).There is pretightning force in stage clip (7) seat in lower contact, make guiding valve be in normally off.Cylinder sleeve top links to each other with top connection, and the bottom links to each other with lower contact.When the oil well ordinary production, guiding valve is in closed condition, cone valve is in normally open, equalizing valve is in normally open all the time, but before multi-functional flushing valve is gone into the well, mix up the circulation area of equalizing valve, thereby guarantee in the negative pressure production, when connecting packer under the multi-functional flushing valve, can realize the producing fluid level Presentation Function.When the anti-flushing well operation, behind the certain pressure reduction of external pressure greater than internal pressure, guiding valve is opened, and cone valve cuts out thereupon simultaneously, has so both realized the anti-flushing well function, has realized protection oil reservoir function again.
The utility model is applicable to that all shake out or clean-out service or other special operation of non-sand well.
The utility model has the following advantages compared with prior art:
1. have in the oil well of packer, can show dynamic liquid level height in the well.
2. but not only washing oil pipe but also can wash pump during anti-flushing well.
3. during anti-flushing well, owing to closing of cone valve can prevent that flushing fluid from entering oil reservoir oil reservoir is polluted.
4. the chain effect of cone valve and guiding valve can make hydraulic base sealed packer seat envelope normal.
Claims (4)
1. multi-functional flushing valve, comprise top connection, sealing ring, guiding valve, central tube, stage clip, cylinder sleeve and lower contact, it is characterized in that having in the top connection radially, stepped hole is a valve seat, the formation equalizing valve matches with the balance valve body, one shoulder is arranged on the hollow wall of guiding valve, the cone valve seat thereon, the upper end of central tube be in cone angle be valve seat, match with cone valve, constitute cone valve.
2. flushing valve according to claim 1 is characterized in that equalizing valve valve body one end is a cone, and the other end is a cylinder, and conical section matches with the radially stepped hole step of top connection, and barrel portion is connected in top connection radially in the stepped hole.
3. flushing valve according to claim 1 and 2 is characterized in that equalizing valve valve body column part has the axial hole that is connected with the radial hole of cone, and is connected with the annular space of casing tube.
4. flushing valve according to claim 1 is characterized in that said cone valve valve body is a truncated cone-shaped cone, the through hole that distributes on its round platform section axial circumference, and seat is on guiding valve inwall shoulder, the inner cone angle valve seat on conical section and the central tube matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228974 CN2276072Y (en) | 1996-09-24 | 1996-09-24 | Multifunctional well-flushing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228974 CN2276072Y (en) | 1996-09-24 | 1996-09-24 | Multifunctional well-flushing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2276072Y true CN2276072Y (en) | 1998-03-11 |
Family
ID=33906739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96228974 Expired - Fee Related CN2276072Y (en) | 1996-09-24 | 1996-09-24 | Multifunctional well-flushing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2276072Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575509A (en) * | 2009-08-13 | 2012-07-11 | 贝克休斯公司 | Tubular valving system and method |
| CN107869320A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | Anti- return of one kind tells flushing valve |
| CN108678694A (en) * | 2018-05-22 | 2018-10-19 | 威海鸿通管材股份有限公司 | Flushing valve and oil production equipment |
-
1996
- 1996-09-24 CN CN 96228974 patent/CN2276072Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575509A (en) * | 2009-08-13 | 2012-07-11 | 贝克休斯公司 | Tubular valving system and method |
| CN107869320A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | Anti- return of one kind tells flushing valve |
| CN108678694A (en) * | 2018-05-22 | 2018-10-19 | 威海鸿通管材股份有限公司 | Flushing valve and oil production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |