CN204126865U - A kind of oil well pump that can prevent gas lock phenomenon - Google Patents
A kind of oil well pump that can prevent gas lock phenomenon Download PDFInfo
- Publication number
- CN204126865U CN204126865U CN201420569969.6U CN201420569969U CN204126865U CN 204126865 U CN204126865 U CN 204126865U CN 201420569969 U CN201420569969 U CN 201420569969U CN 204126865 U CN204126865 U CN 204126865U
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- China
- Prior art keywords
- oil well
- well pump
- gas
- gas skirt
- pump
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of oil well pump that can prevent gas lock phenomenon, relate to oil rig field.This oil well pump inside is provided with gas skirt, and the gas being collected at oil well pump inside is discharged in time by being connected the outlet pipe arranged with gas skirt, thus eliminates the possibility of gas lock phenomenon generation.Can prevent an oil well pump for gas lock phenomenon, this oil well pump comprises: pump barrel main body, and pump barrel bottom part body is provided with standing valve, and pump barrel body interior is provided with gas skirt, is provided with piston, is covered with travelling valve above piston between gas skirt and pump barrel main body; Gas skirt is also connected with the outlet pipe be vented outside oil well pump.
Description
Technical field
The utility model relates to a kind of oil well pump, particularly relates to a kind of oil well pump that can prevent gas lock phenomenon.
Background technique
As a kind of visual plant in petroleum collection production process, the working principle of oil well pump can be described as: under the reciprocating sliding of sucker rod drives, oil well pump carries out a pit shaft oil-feed action and a well head oil extraction action in a stroke procedure, repeats above-mentioned action thus is continually lifted to from down-hole by oil on the ground.
But model utility people finds in R&D process, following situation may be there is in oil pumping process: what in crude oil, dissolved gases may be too early separates out from crude oil, therefore may have gas and enter oil well pump inside.The gas entering oil well pump inside can cause oil well pump generation gas lock phenomenon thus oil well oil pump capacity is diminished, and even can cause time serious cannot be normally fuel-displaced.(gas lock phenomenon refers to the inner gassy of oil well pump, occupies the passage that crude oil enters oil well pump inside.Now, oil pump piston has only carried out compression and expansion to gas when up-down stroke, and standing valve and travelling valve cannot normally be opened).
Model utility content
Embodiment of the present utility model provides a kind of oil well pump, and this oil well pump inside is provided with gas skirt, and the gas being collected at oil well pump inside is discharged in time by being connected the outlet pipe arranged with gas skirt, thus eliminates the possibility of gas lock phenomenon generation.
For solving the problems of the technologies described above, embodiment of the present utility model adopts following technological scheme:
A kind of oil well pump that can prevent gas lock phenomenon, described oil well pump comprises: pump barrel main body, and pump barrel bottom part body is provided with standing valve, and pump barrel body interior is provided with gas skirt, be provided with piston between gas skirt and pump barrel main body, above piston, be covered with travelling valve;
Described gas skirt is also connected with the outlet pipe be vented outside oil well pump.
Further, the one-way valve making gas unidirectional circulate also is provided with between described gas skirt and described outlet pipe.
Preferably, the size of described gas skirt air outlet end is less than the size of described gas skirt suction port end.
A kind of oil well pump that can prevent gas lock phenomenon that the utility model embodiment provides, the pump barrel body interior of this oil well pump is provided with gas skirt, gas skirt is also connected with outlet pipe, the gas being collected at oil well pump inside is discharged in time by outlet pipe, thus fundamentally eliminates the possibility that gas lock phenomenon occurs.
Accompanying drawing explanation
The structural representation of the oil well pump that Fig. 1 provides for the utility model embodiment.
Embodiment
Embodiment of the present utility model provides a kind of oil well pump, and this oil well pump inside is provided with gas skirt, and the gas being collected at oil well pump inside is discharged in time by being connected the outlet pipe arranged with gas skirt, thus eliminates the possibility of gas lock phenomenon generation.
Below in conjunction with following accompanying drawing, the utility model embodiment is described in detail.
The utility model embodiment provides a kind of oil well pump that can prevent gas lock phenomenon, as shown in Figure 1, this oil well pump comprises: pump barrel main body 1, be arranged on the standing valve 2 bottom pump barrel main body 1, the gas skirt 3 being arranged on pump barrel main body 1 inside, the travelling valve 5 that is arranged on the piston 4 between pump barrel main body 1 and gas skirt 3 and is located at above piston 4.In addition, gas skirt 3 is also connected with outlet pipe 6; And piston 4 is also connected with sucker rod 7 and arranges.Wherein, it is inner that gas skirt 3 is arranged on pump barrel main body 1, for collecting the gas that oil well pump inside may exist; And outlet pipe 6 is discharged in time for the gas collected by gas skirt 3, thus play the effect preventing gas lock phenomenon.In addition, as one comparatively preferred embodiment, between gas skirt 3 and outlet pipe 6, be also provided with one-way valve 8 further, utilize one-way valve 8 to make gas can by gas skirt 3 to outlet pipe 6 one-way flow.
Further combined with said structure, explanation is explained once to its working procedure of oil well pump that the utility model embodiment provides.Similar with prior art oil well pump, its working procedure of the oil well pump that the utility model embodiment provides is divided into two stages equally: upstroke action, down stroke action.In upstroke action, sucker rod 7 pulls piston 4 up, and travelling valve 5 is closed standing valve 2 and opened, and crude oil enters oil well pump inside from well head.Meanwhile, control one-way valve 8 and open, namely the gas be collected in gas skirt 3 discharge by one-way valve 8 and outlet pipe 6.And in down stroke action, it is descending that sucker rod 7 promotes piston 4, travelling valve 5 is opened standing valve 2 and is closed, and crude oil enters oil pipe inside from oil well pump inside.Now, control one-way valve 8 and close, the gas of separating out in crude oil is collected in gas skirt 3.And repeating above-mentioned upstroke, down stroke action, crude oil can be lifted on the ground from down-hole by continual; Meanwhile, the gas of separating out in crude oil can be collected in gas skirt, and discharges via gas skirt, one-way valve and outlet pipe, thus avoids gas lock phenomenon.
In addition, as a kind of preferred version of the utility model embodiment, the size of gas skirt air outlet end can be made to be less than the size of gas skirt suction port end.On the one hand, the gas skirt suction port end of larger caliber collects the gas of separating out in crude oil by being easier to; More small-bore gas skirt air outlet end is then easier to the discharge of gas.
A kind of oil well pump that can prevent gas lock phenomenon that the utility model embodiment provides, the pump barrel body interior of this oil well pump is provided with gas skirt, gas skirt is also connected with outlet pipe, the gas being collected at oil well pump inside is discharged in time by outlet pipe, thus fundamentally eliminates the possibility that gas lock phenomenon occurs.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (3)
1. can prevent an oil well pump for gas lock phenomenon, it is characterized in that, described oil well pump comprises: pump barrel main body, pump barrel bottom part body is provided with standing valve, pump barrel body interior is provided with gas skirt, is provided with piston, is covered with travelling valve above piston between gas skirt and pump barrel main body;
Described gas skirt is also connected with the outlet pipe be vented outside oil well pump.
2. oil well pump according to claim 1, is characterized in that, is also provided with the one-way valve making gas unidirectional circulate between described gas skirt and described outlet pipe.
3. oil well pump according to claim 1 and 2, is characterized in that, the size of described gas skirt air outlet end is less than the size of described gas skirt suction port end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569969.6U CN204126865U (en) | 2014-09-29 | 2014-09-29 | A kind of oil well pump that can prevent gas lock phenomenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569969.6U CN204126865U (en) | 2014-09-29 | 2014-09-29 | A kind of oil well pump that can prevent gas lock phenomenon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126865U true CN204126865U (en) | 2015-01-28 |
Family
ID=52383227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420569969.6U Expired - Fee Related CN204126865U (en) | 2014-09-29 | 2014-09-29 | A kind of oil well pump that can prevent gas lock phenomenon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298813A (en) * | 2015-11-18 | 2016-02-03 | 张春生 | Exhaust plunger oil well pump |
-
2014
- 2014-09-29 CN CN201420569969.6U patent/CN204126865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298813A (en) * | 2015-11-18 | 2016-02-03 | 张春生 | Exhaust plunger oil well pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150128 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |