CN201908631U - Pumping well ground negative pressure oil collecting device - Google Patents
Pumping well ground negative pressure oil collecting device Download PDFInfo
- Publication number
- CN201908631U CN201908631U CN2011200177094U CN201120017709U CN201908631U CN 201908631 U CN201908631 U CN 201908631U CN 2011200177094 U CN2011200177094 U CN 2011200177094U CN 201120017709 U CN201120017709 U CN 201120017709U CN 201908631 U CN201908631 U CN 201908631U
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- well
- safety valve
- oil collecting
- negative pressure
- fluid reservoir
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Abstract
The utility model provides a pumping well ground negative pressure oil collecting device, which mainly solves the problem of the existing pumping unit that the well fluid is hard to enter an oil collecting main line because the oil pressure at the mouth of a well is lower than the pressure of an oil collecting pipeline. The pumping well ground negative pressure oil collecting device is characterized in that: one end of a filter (1) is communicated with a well mouth sleeve testing valve (5), the other end of the filter (1) is communicated with the inlet of a liquid storage tank (2), and the outlet of the liquid storage tank (2) is communicated with the inlet of a bidirectional flow circular-arc gear pump (3); the outlet of the bidirectional flow circular-arc gear pump (3) is communicated with the inlet of a safety valve (4), the outlet of the safety valve (4) is communicated with the oil collecting pipeline (6), and a circulation pipeline (9) is connected in parallel between the liquid storage tank (2) and the safety valve (4). By the pumping well ground negative pressure oil collecting device provided by the utility model, the well fluid at the well mouth can be pumped in time, and the well fluid can be introduced into the oil collecting main line in a pressurized way, so that the production loss is reduced, and the sleeve oil stealing phenomenon can be avoided.
Description
Technical field
The utility model relates to the used gathering and transporting device of oil recovery field, oil field oil pumper well head, especially rod-pumped well ground negative pressure oil collector sump tank.
Background technology
In oil recovery field, oil field, in order to cut down the consumption of energy, simplified gathering and transportation technology, generally adopt the ring-type flow process, each endless belt 5-10 mouth oil well.Pumpingh well is subjected to multiple factor affecting in the lifting process, cause part pumpingh well liquid level to well head, when individual well well head oil pressure is lower than collector tubing pressure, makes well liquid be difficult to enter the oil-collecting main line, has influenced oilwell produced fluid amount, and causes the phenomenon of sleeve pipe stolen to produce.。
Summary of the invention
In order to solve existing oil pumper well head low oil pressure, make well liquid be difficult to enter the problem of oil-collecting main line in collector tubing pressure.The utility model provides a kind of rod-pumped well ground negative pressure oil collector sump tank.This rod-pumped well ground negative pressure oil collector sump tank can in time aspirate the well liquid of well head, pressurize and import the oil-collecting main line, has reduced production loss, and can stop the generation of sleeve pipe stolen phenomenon.
The technical solution of the utility model is: this rod-pumped well ground negative pressure oil collector sump tank comprises strainer, fluid reservoir, bidirectional flow circular-arc gear pump and safety valve.Strainer one end is connected with well head sleeve pipe testing valve, the strainer other end is connected with the fluid reservoir import, the fluid reservoir outlet is connected with the pump inlet of bidirectional flow wildhaber-novikov gear, bidirectional flow wildhaber-novikov gear pump discharge is connected with the safety valve import, safety valve outlet is connected with gathering line, between fluid reservoir and the safety valve and be connected with pipeloop.
Be communicated with vacuum meter on the fluid reservoir in the such scheme, be connected with flow meter on the pipeline between safety valve and the gathering line, the valve of contacting on the pipeline between strainer and the fluid reservoir, the valve of contacting on the pipeline between bidirectional flow circular-arc gear pump and the safety valve.
The utlity model has following beneficial effect: this rod-pumped well ground negative pressure oil collector sump tank adopts contact successively strainer, fluid reservoir, bidirectional flow circular-arc gear pump and safety valve, safety valve and the structure that is connected with gathering line on well head sleeve pipe testing valve.Utilize safety valve and control system control bidirectional flow wildhaber-novikov gear pump startup or close, fluid reservoir is produced form low pressure or vacuum state, realization is collected to the well liquid of well head liquid level, solution reduces the production loss that causes because of lift-off pressures, increased the transfusion ability of gathering line, improve oil well liquid-producing, and stopped the phenomenon of sleeve pipe stolen.This rod-pumped well ground negative pressure oil collector sump tank can in time aspirate the well liquid of well head, pressurize and import the oil-collecting main line thus, has reduced production loss, and can stop the generation of sleeve pipe stolen phenomenon.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-strainer among the figure, 2-fluid reservoir, 3-bidirectional flow circular-arc gear pump, 4-safety valve, 5-sleeve pipe testing valve, 6-gathering line, 7-vacuum meter, 8-flow meter, 9-pipeloop.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this rod-pumped well ground negative pressure oil collector sump tank comprises strainer 1, fluid reservoir 2, bidirectional flow circular-arc gear pump 3 and safety valve 4, adopts strainer 1, fluid reservoir 2, bidirectional flow circular-arc gear pump 3 and the safety valve 4 of existing mature technology.Strainer 1 one ends adopt high-pressure rubber pipe to be connected with well head sleeve pipe testing valve 5, strainer 1 other end adopts seamless steel pipe to be connected with fluid reservoir 2 imports, the valve of contacting on the pipeline of seamless steel pipe between strainer 1 and the fluid reservoir 2, be communicated with vacuum meter 7 on the fluid reservoir 2, fluid reservoir 2 outlets adopt seamless steel pipe to be connected with 3 imports of bidirectional flow circular-arc gear pump, 3 outlets of bidirectional flow circular-arc gear pump adopt seamless steel pipe to be connected with safety valve 4 imports, the valve of contacting on the pipeline of seamless steel pipe between bidirectional flow circular-arc gear pump 3 and the safety valve 4, safety valve 4 outlets adopt high-pressure rubber pipe to be connected with gathering line 6, be connected with flow meter 8 on the pipeline between safety valve 4 and the gathering line 6, between fluid reservoir 2 and the safety valve 4 and be connected with pipeloop 9.
This rod-pumped well ground negative pressure oil collector sump tank operating principle:
When liquid level arrives well head, start the bidirectional flow circular-arc gear pump by safety valve 4 and control system, fluid reservoir 2 forms low pressure or vacuum state under the swabbing action of bidirectional flow circular-arc gear pump 3, well liquid is under casing pressure drives, flow in the fluid reservoir 2, again input set oil pipeline 6 after 3 pressurizations of bidirectional flow circular-arc gear pump.When the well hydraulic coupling of bidirectional flow circular-arc gear pump 3 outputs was higher than safety valve 4 setting pressures, well liquid was got back to fluid reservoir 2 by pipeloop.In time the well liquid of well head is imported the oil-collecting main line by measures such as pumping, pressurizations, reduced production loss.
This rod-pumped well ground negative pressure oil collector sump tank is obtained remarkable result by field experiment.Be applicable to that liquid level is to well head and the lower oil well of well head pressure.
Claims (2)
1. rod-pumped well ground negative pressure oil collector sump tank, comprise strainer (1), fluid reservoir (2), bidirectional flow circular-arc gear pump (3) and safety valve (4), it is characterized in that: strainer (1) one end is connected with well head sleeve pipe testing valve (5), strainer (1) other end is connected with fluid reservoir (2) import, fluid reservoir (2) outlet is connected with bidirectional flow circular-arc gear pump (3) import, bidirectional flow circular-arc gear pump (3) outlet is connected with safety valve (4) import, safety valve (4) outlet is connected with gathering line (6), between fluid reservoir (2) and the safety valve (4) and be connected with pipeloop (9).
2. rod-pumped well according to claim 1 ground negative pressure oil collector sump tank, it is characterized in that: be communicated with vacuum meter (7) on the fluid reservoir (2), be connected with flow meter (8) on the pipeline between safety valve (4) and the gathering line (6), the valve of contacting on the pipeline between strainer (1) and the fluid reservoir (2), the valve of contacting on the pipeline between bidirectional flow circular-arc gear pump (3) and the safety valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200177094U CN201908631U (en) | 2011-01-20 | 2011-01-20 | Pumping well ground negative pressure oil collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200177094U CN201908631U (en) | 2011-01-20 | 2011-01-20 | Pumping well ground negative pressure oil collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908631U true CN201908631U (en) | 2011-07-27 |
Family
ID=44300834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200177094U Expired - Fee Related CN201908631U (en) | 2011-01-20 | 2011-01-20 | Pumping well ground negative pressure oil collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
| CN115234198A (en) * | 2022-07-19 | 2022-10-25 | 天津海渤谊油科技发展有限公司 | Airtight drain of oil gas well |
-
2011
- 2011-01-20 CN CN2011200177094U patent/CN201908631U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
| CN115234198A (en) * | 2022-07-19 | 2022-10-25 | 天津海渤谊油科技发展有限公司 | Airtight drain of oil gas well |
| CN115234198B (en) * | 2022-07-19 | 2024-01-12 | 天津海渤谊油科技发展有限公司 | Sealed liquid discharging device for oil and gas well |
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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: 20110727 Termination date: 20190120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |