CN106968656A - One kind, which builds the pressure, increases well yield method - Google Patents
One kind, which builds the pressure, increases well yield method Download PDFInfo
- Publication number
- CN106968656A CN106968656A CN201710234664.8A CN201710234664A CN106968656A CN 106968656 A CN106968656 A CN 106968656A CN 201710234664 A CN201710234664 A CN 201710234664A CN 106968656 A CN106968656 A CN 106968656A
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- China
- Prior art keywords
- pressure
- oil
- well
- build
- aperture
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
Abstract
Being built the pressure the invention discloses one kind increases well yield method, belongs to the production technology of producing well.In crude oil lifting process, well cylinder pressure is gradually reduced, and crude oil deaeration is serious, causes oil well liquid-supplying not enough, and large-minded in oil pipe, pumping efficiency of oil pump is low, and oil well output is low.For this problem, influence using pressure to crude oil deaeration in pit shaft, by controlling the aperture of back pressure valve to implement suitably to build the pressure to oil pipe, pressure in increase oil pipe carrys out crude oil for inhibiting degassing, so as to improve the working condition of oil well pump, by contrasting the indicator card built the pressure with the oil recovery that do not build the pressure, it can be seen that build the pressure method improves pump efficiency, adds well yield.
Description
Technical field
The invention discloses a kind of method for the increase well yield that builds the pressure, belong to the production technology of oil well.
Background technology
Now, as oil field development enters the middle and later periods, the stratum energy of oil reservoir is gradually reduced, and crude oil amount gradually increases
Plus.Meanwhile, in newly-built production capacity and oil well increase the treatment process of oil by Layer adjustment, the new well in part and measure oil well are by cloth
Well location put or individual layer condition influence, in process of production, from shaft bottom to well head, pressure is gradually reduced, the solubility of crude oil by
Gradually reduce, wellbore oil degassing is serious, casing pressure and liquid level decline, pressure difference reduction causes oil well liquid-supplying not enough, and casing pressure is high, oil pipe
Interior large-minded, pumping efficiency of oil pump is low, and interval is fuel-displaced, causes oil well output to reduce.
The method for solving pit shaft Crude Oil degassing problem is mainly control wellhead back pressure.At present, the side of wellhead back pressure is controlled
Method mainly uses piston reciprocating type oil transfer pump, sliding-vane pump, gear pump and displacement pump etc., but is the increase in maintenance workload, enters
And add cost of winning.
Shaanxi Xi'an Meng make it is great have developed a kind of oil well and drop back to pressure device, mainly moved back and forth, come by plunger low speed
Wellhead back pressure is reduced, so as to reduce crude oil deaeration.Such a method can reduce wellhead back pressure to a certain extent, but reduction
Effect is not obvious, and the size of reduction is difficult to control, while plunger low-speed motion has had a strong impact on crude oil production speed, drop
Low yield.
Bin Nan oil recovery factories of sinopec Shengli Oil Field branch company of Dongying city have developed producing well choke manifold control
Device.Mainly kill-job when implement circulating with choke, control borehole fluid outflow well head controls wellhead back pressure bottom pressure, and
Keep constant, prevent overflow, play pressure release.Although such a method can effectively control wellhead back pressure, well head is reduction of
Pressure, can not effectively solve the problems, such as crude oil deaeration in pit shaft.
Present invention practicality simple to operate, changes the principle of dynamic control according to gassiness, with reference to oil field shaft mouth actual conditions and
Production technology experience, with reference to the inspection working system of site operation personnel, on the premise of without underground work, according to not
With oil well gassiness degree and the dynamic change trend of individual well air content, passed through according to oil field shaft mouth process features and production technology
Test, by controlling the aperture of back-pressure gate to implement suitably to build the pressure to oil pipe, carry out a kind of oil recovery skill controlled based on wellhead back pressure
Art, suppresses crude oil in oil pipe degassing, so as to improve oil pumping pump condition, increases the well yield of oil well, improves oil well production efficiency
And benefit.
The application of oil recovery technique of the present invention, is that another the be based on wellhead back pressure different with all kinds of underground air trap devices is controlled
Oil recovery technique, using sensitivity response of the oil well associated gas to pressure, by suitably increasing the production pressure of oil pipe,
The content of the invention
According to the actual conditions at oil producing operation area oil well production scene, with reference to the inspection working system of site operation personnel,
In line with practical principle simple to operate, on the premise of without underground work, according to different oil well gassiness degree and individual well
The dynamic change trend of air content, according to oil field shaft mouth process features and production technology experience, by controlling opening for back-pressure gate
Degree is implemented suitably to build the pressure to oil pipe, carries out a kind of oil recovery technique controlled based on wellhead back pressure, and oil well associated gas increases in pressure
Under conditions of, degassing degree and amount of gas evolved are reduced to a certain extent.By observing oil well oil-pumping pump dynamometers in different pressures
Under closed area change, the optimal value that builds the pressure is determined, so as to improve the working condition of oil well pump, to a certain extent
Pumping efficiency of oil pump is improved, increases the well yield of oil well.
The beneficial effect for the technical scheme that the present invention is provided
By field test, with reference to the change of oil well indicator card effect and well head yield, this hair controlled based on wellhead back pressure
Bright oil recovery technique, can be using sensitivity response of the oil well associated gas to pressure, according to the gas bearing condition of different oil wells, in well head
Suitably build the pressure, under conditions of increase oil pipe production pressure, reach the purpose for suppressing oil pipe degassing, in terms of the effect of operation, necessarily
Degree improves the working condition of part high-gas-contained well oil well pump, can effectively improve pumping efficiency of oil pump, increases the list of oil well
Well production.
Brief description of the drawings
Fig. 1 is the production indicator card after use at the scene of the invention；
Fig. 2 is untapped production indicator card of the invention；
Fig. 3 is that the present invention is contrasted using the production indicator card after preceding and use.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples,
The present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention,
It is not intended to limit the present invention.
According to oil field shaft mouth process features and production technology experience, by controlling the aperture of back-pressure gate suitably to suppress oil pipe
Pressure, carries out a kind of oil recovery technique controlled based on wellhead back pressure, oil well associated gas is under conditions of pressure increase, degassing degree
Reduced to a certain extent with amount of gas evolved, casing pressure reduction, oil pipe tolerance is reduced, and pumping efficiency of oil pump is improved, so as to improve oil well production
Amount.
As shown in Fig. 1~2, wherein, Fig. 1 is untapped production indicator card of the invention；Fig. 2 is that the present invention makes at the scene
Production indicator card after.
Contrast build the pressure method is recovered the oil with the production indicator card that build the pressure method is recovered the oil is not used, it is seen then that the pump efficiency that build the pressure method is recovered the oil is bright
It is aobvious to improve.
Claims (4)
- The increase well yield method 1. one kind builds the pressure.Influence using pressure to crude oil deaeration in pit shaft, by controlling back-pressure valve The aperture of door is implemented suitably to build the pressure to oil pipe, and the pressure in increase oil pipe carrys out crude oil for inhibiting degassing, so as to improve the work of oil well pump Make situation, by contrasting the indicator card built the pressure with the oil recovery that do not build the pressure, it can be seen that build the pressure method improves pump efficiency, add individual well production Amount.
- 2. the aperture of control back-pressure valve is implemented suitably to build the pressure to oil pipe as claimed in claim 1, without carrying out workover treatment, only Back pressure adjustment need to be carried out in Daily Round Check, can just reach that individual well increases the purpose of oil to a certain extent.
- 3. the aperture of control back-pressure valve as claimed in claim 2, specific aperture will according to different oil well gassiness degree and The dynamic change trend of individual well air content, determines according to oil field shaft mouth process features and production technology experience.
- 4. the air content change of oil well as claimed in claim 3, Well head flow path feature will be produced according to oil producing operation area oil field The actual conditions at scene, with reference to the inspection working system of site operation personnel, in line with practical principle simple to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234664.8A CN106968656A (en) | 2017-04-11 | 2017-04-11 | One kind, which builds the pressure, increases well yield method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234664.8A CN106968656A (en) | 2017-04-11 | 2017-04-11 | One kind, which builds the pressure, increases well yield method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968656A true CN106968656A (en) | 2017-07-21 |
Family
ID=59336841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234664.8A Pending CN106968656A (en) | 2017-04-11 | 2017-04-11 | One kind, which builds the pressure, increases well yield method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357167A (en) * | 2021-06-08 | 2021-09-07 | 中海油能源发展股份有限公司 | Electrical submersible pump well abnormity diagnosis method based on double-suppressed pressure curve |
| CN115859530A (en) * | 2023-01-18 | 2023-03-28 | 西南石油大学 | Oil well pump health state evaluation method based on dimensionless pump efficiency |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090229822A1 (en) * | 2006-09-18 | 2009-09-17 | Hutchins Richard D | Methods of Limiting Leak Off and Damage In Hydraulic Fractures |
| CN103195399A (en) * | 2013-04-02 | 2013-07-10 | 中国石油天然气股份有限公司 | Single-pressure double-valve electrical-control joint exploitation pipe column and controlling method |
| CN205591893U (en) * | 2016-04-25 | 2016-09-21 | 孟令浩 | Back pressure device falls in oil well |
| CN205936576U (en) * | 2016-08-03 | 2017-02-08 | 延长油田股份有限公司南泥湾采油厂 | Low permeability pay well head is automatic to be controlled pressure equipment and puts |
-
2017
- 2017-04-11 CN CN201710234664.8A patent/CN106968656A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090229822A1 (en) * | 2006-09-18 | 2009-09-17 | Hutchins Richard D | Methods of Limiting Leak Off and Damage In Hydraulic Fractures |
| CN103195399A (en) * | 2013-04-02 | 2013-07-10 | 中国石油天然气股份有限公司 | Single-pressure double-valve electrical-control joint exploitation pipe column and controlling method |
| CN205591893U (en) * | 2016-04-25 | 2016-09-21 | 孟令浩 | Back pressure device falls in oil well |
| CN205936576U (en) * | 2016-08-03 | 2017-02-08 | 延长油田股份有限公司南泥湾采油厂 | Low permeability pay well head is automatic to be controlled pressure equipment and puts |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357167A (en) * | 2021-06-08 | 2021-09-07 | 中海油能源发展股份有限公司 | Electrical submersible pump well abnormity diagnosis method based on double-suppressed pressure curve |
| CN113357167B (en) * | 2021-06-08 | 2022-07-22 | 中海油能源发展股份有限公司 | Electrical submersible pump well abnormity diagnosis method based on double-suppressed pressure curve |
| CN115859530A (en) * | 2023-01-18 | 2023-03-28 | 西南石油大学 | Oil well pump health state evaluation method based on dimensionless pump efficiency |
| CN115859530B (en) * | 2023-01-18 | 2023-08-11 | 西南石油大学 | Oil pump health state evaluation method based on dimensionless pump efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170721 |