CN201513330U - Blowout prevention and sand prevention oil-well pump with oil drainage function - Google Patents
Blowout prevention and sand prevention oil-well pump with oil drainage function Download PDFInfo
- Publication number
- CN201513330U CN201513330U CN2009202395518U CN200920239551U CN201513330U CN 201513330 U CN201513330 U CN 201513330U CN 2009202395518 U CN2009202395518 U CN 2009202395518U CN 200920239551 U CN200920239551 U CN 200920239551U CN 201513330 U CN201513330 U CN 201513330U
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- oil
- pump
- pump barrel
- plunger
- valve
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Abstract
The utility model discloses a blowout prevention and sand prevention oil-well pump with oil drainage function, which comprises a pump body. A pump barrel is arranged inside the outer cylinder of the pump body, a standing valve is arranged on the pump barrel, a plunger is movably arranged inside the pump barrel and has an oil outlet valve mounted at one end and a travelling valve mounted at the other end thereof, a blowout preventer is arranged at the lower end of the pump barrel between the standing valve and the travelling valve, and the pump body adopts a sand settling structure. The blowout preventer arranged between the standing valve and the travelling valve avoids oil blowout; the sand settling structure enables sand grains to fall into a sand settling tail pipe along an annular hollow cavity, so as to reduce the sand grains and impurities settling at the top part of the plunger; and an oil drainage device arranged on the side wall of the pump barrel in the position corresponding to the blowout preventer facilitates the drainage of the crude oil inside the pump barrel.
Description
Technical field
The utility model relates to a kind of oil well pump.
Background technique
Be subjected to the influence of complicated geological structure, sand output well is at each oil field, whole nation ubiquity all, it is more to contain sand in the crude oil, and enter secondary in the oil field or just have for three times this situation in back more outstanding, be easy to make pump barrel, the plunger wear aggravation of oil well pump, the lost of life sand card, sand also often occur and accident such as buries.Existing oil well pump adopts strike-off cup and spiral to strike-off to solve sand card problem between plunger and the pump barrel, obtained certain effect, but because sand grains and the impurity than coarsegrain is difficult to be evacuated to ground with it in the crude oil, in the course of conveying that makes progress, sand grains and impurity constantly land and are deposited on the top of plunger, through accumulation after a while, sand card or sand still can occur and bury.In addition, in the oil well pump of oil field field operation is gone into the well process, often have crude oil and from well head, spray, not only caused the waste of crude oil to pollute environment, return workman's field operation and make troubles; And when playing pump, often have a large amount of profits in the pump barrel, and having increased the difficulty of construction operation, the factor that influences safety, quality increases, and has prolonged construction period, has increased cost of production.
The model utility content
Technical problem to be solved in the utility model provides the oil well pump of the anti-abrasive band of a kind of blowout prevention oil draining function.
For solving the problems of the technologies described above, the technical solution of the utility model is: the oil well pump of the anti-abrasive band of blowout prevention oil draining function, comprise the pump housing, in the urceolus of the described pump housing pump barrel is installed, on described pump barrel, standing valve is installed, in described pump barrel, be movably installed with plunger, end at described plunger is equipped with outlet valve, the other end at described plunger is equipped with traveling valve, pump barrel lower end between described standing valve and the described traveling valve is equipped with preventer, be provided with drainage device with the corresponding pump barrel sidewall of described preventer, the described pump housing adopts the sand setting structure.
As optimized technical scheme, described preventer comprises the pressure cap that is movably arranged on described pump barrel lower end, described pressure cap be provided with jump ring, described pressure cap is connected with the opening end of connecting sleeve, described connecting sleeve is provided with closed end, on described closed end Decompression valves is installed, offers liquid-through hole on described closed end, described Decompression valves is connected with seal.
As optimized technical scheme, described drainage device is hollow draining pin.
As optimized technical scheme, described urceolus and described pump barrel are formed with toroidal cavity, on described urceolus duplex fitting are installed, and the other end of described duplex fitting is equipped with the sand setting tail pipe, and described duplex fitting is communicated with described toroidal cavity and described sand setting tail pipe.
As optimized technical scheme, described outlet valve has downlink working position and up working position, and in described downlink working position and described up working position, oil-release valve cover is all outside pump barrel.
As optimized technical scheme, the external diameter of described oil-release valve cover is greater than plunger outer diameter.
As optimized technical scheme, described plunger is the polished rod structure.
Owing to adopted technique scheme, the oil well pump of the anti-abrasive band of blowout prevention oil draining function, comprise the pump housing, in the urceolus of the described pump housing pump barrel is installed, on described pump barrel, standing valve is installed, in described pump barrel, be movably installed with plunger, end at described plunger is equipped with outlet valve, the other end at described plunger is equipped with traveling valve, and the pump barrel lower end between described standing valve and the described traveling valve is equipped with preventer, and the described pump housing adopts the sand setting structure; Between standing valve and traveling valve, preventer is installed, has avoided the generation of fuel injection condition; The sand setting structure makes sand grains fall into the sand setting tail pipe along toroidal cavity, has reduced the top that the landing of sand grains and impurity is deposited on plunger; Be provided with drainage device with the corresponding pump barrel sidewall of described preventer, conveniently crude oil in the pump barrel released.
Description of drawings
Accompanying drawing is the utility model embodiment's a structural representation.
Embodiment
As shown in drawings, the oil well pump of the anti-abrasive band of blowout prevention oil draining function, comprise the pump housing, in the urceolus 13 of the described pump housing pump barrel 3 is installed, on described pump barrel 3, standing valve 11 is installed, in described pump barrel 3, be movably installed with plunger 4, end at described plunger 4 is equipped with outlet valve 2, the other end at described plunger 4 is equipped with traveling valve 14, pump barrel 3 lower ends between described standing valve 11 and the described traveling valve 14 are equipped with preventer, described preventer comprises that piston is installed in the pressure cap 5 in the described pump barrel 3, described pressure cap 5 be provided with jump ring 9, described pressure cap 5 is connected with connecting sleeve 6, described connecting sleeve 6 is provided with closed end, Decompression valves 8 is installed on described closed end, on described closed end, offer liquid-through hole 17, described Decompression valves is connected with seal 10, be provided with hollow draining pin 7 with the sidewall of the corresponding pump barrel 3 of described preventer, described urceolus 13 and described pump barrel 3 are formed with toroidal cavity 15, on described urceolus 13, duplex fitting 12 is installed, the other end of described duplex fitting 12 is equipped with sand setting tail pipe 16, described duplex fitting 12 is communicated with described toroidal cavity 15 and described sand setting tail pipe 16, described outlet valve 2 has downlink working position and up working position, in described downlink working position and described up working position, described oil-release valve cover 1 is all outside pump barrel 3, the external diameter of described oil-release valve cover 1 is greater than the external diameter of described plunger 4, and described plunger 4 is the polished rod structure.
Described outlet valve 2 has downlink working position and up working position, in described downlink working position and described up working position, described oil-release valve cover 1 is all outside pump barrel 3, in plunger 4 to-and-fro motion, because pump barrel 3 total lengths match with plunger 4 all the time, and plunger 4 is the polished rod structure, has reduced sand grains and has entered probability between pump barrel 3 and the plunger 4; Oil-release valve cover 1 Flow area strengthens, and its external diameter is greater than plunger 4 external diameters, and stretches out pump barrel 3 all the time, can stop that the sand grains in the oil pipe falls after rise to pump barrel 3, can prevent that on the other hand traveling valve 2 lost efficacy because of sand buries on the one hand.
Adopt bitubular annular space sand setting structure, make the sand grains that enters, fall into the sand sediment pipe 16 of afterbody through duplex fitting 12 from toroidal cavity 15; Last oil-release valve cover 1 is all the time on pump barrel 3, greatly reduce fuel-displaced resistance, substantially fluent phenomenon when descending, therefore alleviated the erosion of liquid to valve ball and oil-release valve cover 1 in the traveling valve 2, and the bottom sucker rod is not flexible, can alleviate the wearing and tearing that friction causes between sucker rod and oil pipe, reduce consuming, improve overall economic efficiency.
Preventer is installed between the pump barrel 3 and standing valve 11 of oil well pump, is in closed condition during following pump, and liquid can not enter the oil pipe ejection by oil well pump in the well.When oil well pump arrives the good well head of precalculated position back seat, lower plunger 4 assemblies and sucker rod down.After plunger 4 enters pump barrel 3, press pressure cap 5 with plunger 4 bottoms, jump ring 9 leaves the jump ring groove makes pressure cap 5 drive connecting sleeves 6 descending, Decompression valves 8 is opened earlier, realizes pressure balance, continues to press down, connecting sleeve 6 moves down, drive seal and exercise the valve port unlatching for 10 times, liquid enters pump barrel 3 by connecting sleeve 6 liquid-through holes 17, realizes normally oil pumping; When needs inspections pump, trip out sucker rod and plunger 3 earlier, caber clashes into hollow draining pin 7 and releases liquid in the oil pipe then; Special-purpose preventer need cut out again by above step and go into the well again after well workover, can reuse, and meets energy-saving and cost-reducing needs.
Can prevent that when stop pumping sand buried column plug 4 and sand from burying sucker rod, when work, more can prevent the sand card, can prevent effectively that especially sand grains from entering the gap between pump barrel 3 and the plunger 4, avoid the strong wear of sand grains to pump barrel 3 and plunger 4, thereby the cementation zone of plunger 4 and pump barrel 3 is difficult for destroyedly, thereby significantly improved its operating life.
Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, distortion of having done and improvement also should be considered as protection domain of the present utility model.
Claims (7)
1. the oil well pump of abrasive band oil draining function is prevented in blowout prevention, comprise the pump housing, in the urceolus of the described pump housing pump barrel is installed, on described pump barrel, standing valve is installed, in described pump barrel, be movably installed with plunger, end at described plunger is equipped with outlet valve, the other end at described plunger is equipped with traveling valve, it is characterized in that: the pump barrel lower end between described standing valve and the described traveling valve is equipped with preventer, be provided with drainage device with the corresponding pump barrel sidewall of described preventer, the described pump housing adopts the sand setting structure.
2. the oil well pump of the anti-abrasive band of blowout prevention as claimed in claim 1 oil draining function, it is characterized in that: described preventer comprises the pressure cap that is movably arranged on described pump barrel lower end, described pressure cap is provided with jump ring, described pressure cap is connected with the opening end of connecting sleeve, described connecting sleeve is provided with closed end, on described closed end Decompression valves is installed, offers liquid-through hole on described closed end, described Decompression valves is connected with seal.
3. the oil well pump of the anti-abrasive band of blowout prevention as claimed in claim 1 oil draining function, it is characterized in that: described drainage device is hollow draining pin.
4. the oil well pump of the anti-abrasive band of blowout prevention as claimed in claim 1 oil draining function, it is characterized in that: described urceolus and described pump barrel are formed with toroidal cavity, on described urceolus, duplex fitting is installed, the other end of described duplex fitting is equipped with the sand setting tail pipe, and described duplex fitting is communicated with described toroidal cavity and described sand setting tail pipe.
5. the oil well pump of the anti-abrasive band of blowout prevention as claimed in claim 1 oil draining function, it is characterized in that: described outlet valve has downlink working position and up working position, and in described downlink working position and described up working position, oil-release valve cover is all outside pump barrel.
6. as the oil well pump of claim 1 or the anti-abrasive band of 5 described blowout preventions oil draining function, it is characterized in that: the external diameter of described oil-release valve cover is greater than plunger outer diameter.
7. the oil well pump of the anti-abrasive band of blowout prevention as claimed in claim 1 oil draining function, it is characterized in that: described plunger is the polished rod structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202395518U CN201513330U (en) | 2009-10-09 | 2009-10-09 | Blowout prevention and sand prevention oil-well pump with oil drainage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202395518U CN201513330U (en) | 2009-10-09 | 2009-10-09 | Blowout prevention and sand prevention oil-well pump with oil drainage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513330U true CN201513330U (en) | 2010-06-23 |
Family
ID=42484737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202395518U Expired - Lifetime CN201513330U (en) | 2009-10-09 | 2009-10-09 | Blowout prevention and sand prevention oil-well pump with oil drainage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672954A (en) * | 2016-01-31 | 2016-06-15 | 梁伟成 | Controllable annular sand preventer |
| CN106285536A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand control installation |
| CN106930936A (en) * | 2015-12-30 | 2017-07-07 | 中国海洋大学 | A kind of marine sucker rod pumping well safe valve |
-
2009
- 2009-10-09 CN CN2009202395518U patent/CN201513330U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285536A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand control installation |
| CN106285536B (en) * | 2015-06-04 | 2018-11-16 | 中国石油天然气股份有限公司 | Sand control installation |
| CN106930936A (en) * | 2015-12-30 | 2017-07-07 | 中国海洋大学 | A kind of marine sucker rod pumping well safe valve |
| CN105672954A (en) * | 2016-01-31 | 2016-06-15 | 梁伟成 | Controllable annular sand preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |