CN2718264Y - Compensation type hydraulic sealing sand-resistant fixed valve - Google Patents
Compensation type hydraulic sealing sand-resistant fixed valve Download PDFInfo
- Publication number
- CN2718264Y CN2718264Y CN 200420064607 CN200420064607U CN2718264Y CN 2718264 Y CN2718264 Y CN 2718264Y CN 200420064607 CN200420064607 CN 200420064607 CN 200420064607 U CN200420064607 U CN 200420064607U CN 2718264 Y CN2718264 Y CN 2718264Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- ball
- valve seat
- sand
- 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
Links
- 239000004576 sand Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 title abstract description 14
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 9
- 210000002583 cell-derived microparticle Anatomy 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003129 oil well Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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- Check Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a compensation formula hydraulic seal sand-resistant standing valve, by valve ball 1, sealing ring 2, valve seat 3, the external body 4 is constituteed, the utility model discloses owing to adopted and be connected with the valve seat in the external body, there is the sealing ring on the valve seat, there is the valve ball on the sealing ring, at first falls on the sealing ring when the valve ball falls down, rises the sealing ring to form between sphere and sealing ring and seal in advance, later the valve ball under the fluid pressure effect, fall on the sealed face of valve seat, solve the standing valve thorn hourglass problem that appears when compound oil-well pump is applied to the sand oil well. The ball valve is simple in structure, reliable and effective in performance, and only the nonmetal sealing ring is added on the basis of the original ball valve structure, so that the leakage of the fixed valve can be reduced under the condition of a sand outlet well, the phenomenon of puncture and leakage is effectively avoided, and the pump efficiency is improved.
Description
Technical field:
The utility model relates to the extracting device of oil that uses on a kind of field produces, particularly a kind of compensation liquid packing anti-sand fixed valve.
Background technique:
Along with the intensification of domestic oilfield exploitation degree, sand well occurs in a large number at present, and the situation of shaking out forms and increases the weight of trend year by year, has seriously restricted the application that has the bar reciprocating oil-well pump to recover the oil and produce in the oil field.From the technological scheme face, sand production mainly contains three aspects to the influence of reciprocating type downhole pump.Sand grains enters the slipper seal gap between pump barrel and the plunger, causes the sand holddown.Sand grains enters between traveling valve valve ball and the valve seat, causes the traveling valve thorn to leak.Sand grains enters between pump standing valve valve ball and the valve seat, causes the standing valve thorn to leak, thereby pump efficiency is reduced, and standing valve lost efficacy.At preceding two problems, relevant research is more relatively, has formed multiple technologies, as the floating ring pump sand-discharge oil production technology of inventing in earlier stage than us, but for standing valve, because reliability requirement is higher, the space is narrow and small, and the difficulty of dealing with problems is bigger, never the technology of comparative maturity.
Summary of the invention
The purpose of this utility model provides a kind of compensation liquid packing anti-sand fixed valve.For there being the bar reciprocating oil-well pump that a kind of novel standing valve is provided, make rod pump can be effectively applied to sand well, do not cause the sand holddown, do not cause the standing valve thorn to leak, thereby pump efficiency is improved.
The purpose of this utility model is to realize like this, it is made up of valve ball (1), seal ring (2) valve seat (3), ectosome (4), be connected with valve seat (3) in ectosome (4), seal ring (2) is arranged on valve seat (3), there is valve ball (1) at seal ring (2) seat of honour.
When work, valve ball falls and at first drops on the seal ring, with the seal ring spreading, and between sphere and seal ring, form pre-sealed, valve ball is under the fluid pressure effect afterwards, drop on the sealing surface of valve seat, when the sealing surface of valve seat is intact, nonmetal seal ring is inoperative, when valve seat structure standing valve produced leakage, nonmetal seal ring lower cavity internal pressure reduced, and nonmetal seal ring is squeezed under the fluid pressure effect in the angular space of sphere formation with the ball seat upper end, form the fluid power self-tightening sealing, compensate former ball socket structure standing valve in the defective that contains under the sand drain condition.
The utility model is connected with valve seat owing to having adopted in ectosome, seal ring is arranged on valve seat, there is valve ball at the seal ring seat of honour, when valve ball falls, at first drop on the seal ring, with the seal ring spreading, and formation is pre-sealed between sphere and seal ring, and valve ball is under the fluid pressure effect afterwards, drop on the sealing surface of valve seat, solve the standing valve thorn leakage problem that occurs when compound oil well pump is applied to sand well.It is simple in structure, and reliable performance, effective on the basis of its former ball-valve structure, only increases nonmetal seal ring, can descend at the hole condition that shakes out to hanging down the wastage of standing valve, effectively avoid thorn to leak phenomenon, the raising pump efficiency.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated:
As shown in the figure: the utility model is made up of valve ball 1, seal ring 2, valve seat 3, ectosome 4, is connected with valve seat 3 in ectosome 4, and seal ring 2 is arranged on valve seat 3, and there is valve ball 1 at seal ring 2 seats of honour, and seal ring 2 is nonmetal seal ring.
When valve ball 1 falls, at first drop on the nonmetal seal ring 2, with 2 spreadings, and between sphere and seal ring 2, form pre-sealed.Valve ball 1 is dropping under the fluid pressure effect on the sealing surface of valve seat 3 afterwards, when the valve seat structure produces leakage, nonmetal seal ring 2 lower chamber internal pressures reduce, seal ring 2 is squeezed under the effect of fluid power in the angular space of valve ball 1 and the formation of valve seat 3 upper-end surfaces, forms the fluid power self-tightening sealing.
Claims (2)
1, a kind of compensation liquid packing anti-sand fixed valve, it is made up of valve ball (1), seal ring (2) valve seat (3), ectosome (4), it is characterized in that: be connected with valve seat (3) in ectosome (4), seal ring (2) is arranged on valve seat (3), there is valve ball (1) at seal ring (2) seat of honour.
2, compensation liquid packing anti-sand fixed valve according to claim 1 is characterized in that: seal ring (2) is nonmetal seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064607 CN2718264Y (en) | 2004-06-02 | 2004-06-02 | Compensation type hydraulic sealing sand-resistant fixed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064607 CN2718264Y (en) | 2004-06-02 | 2004-06-02 | Compensation type hydraulic sealing sand-resistant fixed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718264Y true CN2718264Y (en) | 2005-08-17 |
Family
ID=34893542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064607 Expired - Lifetime CN2718264Y (en) | 2004-06-02 | 2004-06-02 | Compensation type hydraulic sealing sand-resistant fixed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718264Y (en) |
-
2004
- 2004-06-02 CN CN 200420064607 patent/CN2718264Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140602 Granted publication date: 20050817 |