CN105298450B - A kind of integrated flow string of anti-salt oil recovery for salt crust oil well - Google Patents
A kind of integrated flow string of anti-salt oil recovery for salt crust oil well Download PDFInfo
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- CN105298450B CN105298450B CN201510885069.1A CN201510885069A CN105298450B CN 105298450 B CN105298450 B CN 105298450B CN 201510885069 A CN201510885069 A CN 201510885069A CN 105298450 B CN105298450 B CN 105298450B
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Abstract
The present invention proposes a kind of integrated flow string of anti-salt oil recovery for salt crust oil well, including anti-salt injection-extraction pump sequentially connected from top to bottom, level pressure one-way watering valve, safety joint, packer, screen casing and starting taper, anti- salt injection-extraction pump includes outer sleeve, pump barrel and plunger, outer sleeve is coaxially disposed with pump barrel, plunger is arranged on pump barrel inner cavity, pump barrel includes short pump barrel and long pump barrel, short pump barrel is connected with long pump barrel by box cupling on long pump barrel, long pump barrel bottom is equipped with pump barrel inlet valve, plunger head is provided with oil outlet, top is equipped with plunger delivery valve, plunger base is equipped with plunger inlet valve.The configuration of the present invention is simple, easy to operate, cost for oil production is low.
Description
Technical field
The invention belongs to the technical field of salt crust well recovery, more particularly to a kind of anti-salt oil recovery one for salt crust oil well
Body flow string.
Background technology
Stratum is both source bed between salt and oil reservoirs, its oil gas generated insulate (closed system) shape due to upper and lower rock salt
Into argillaceous dolomite oil reservoir between salt, contain abundant petroleum resources.Between salt in argillaceous dolomite oil reservoir oil well production process,
As temperature, pressure decline, salt solubility declines, and salt Crystallization Plugging seepage channel, effective production time is short, conventional anti-salt de-plugging
DP technology anti-salt de-plugging tubing string construction under having needed after tubular type pumping tubing string, descends pumping tubing string, causes anti-salt solution again after construction
Stifled oil recovery production cost is high, and oil well economical and effective is exploited between can not realizing salt.
Traditional anti-salt DP technology is that anti-salt de-plugging tubing string and oil recovery flow string separate：Anti- salt tubing string and acidifying tubing string
It is identical, the setting protection sleeve pipe of tubing string of the tripping in hydraulic packer anti-salt construction during construction, after then playing out anti-salt de-plugging tubing string,
Tripping in tubular type pumping tubing string produces.The anti-salt block-relief oil production complex procedures of tradition, cost for oil production is high, seriously affects and constrain between salt
Oil well economical and effective is developed.
That is, traditional water squeezing DP technology, applies in the case where the water squeezing cycle is shorter and shorter and is restricted.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned problem, there is provided a kind of for salt crust oil well
The anti-integrated flow string of salt oil recovery, making it, repeatedly anti-salt recovers the oil for realization, and reduction oil recovery is produced into the tripping in of salt crust oil well
This, improves oil field development benefit.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of anti-salt oil recovery one for salt crust oil well
Body flow string, it is characterised in that including anti-salt injection-extraction pump sequentially connected from top to bottom, level pressure one-way watering valve, safety
Connector, packer, screen casing and starting taper；The anti-salt injection-extraction pump includes outer sleeve, pump barrel and plunger, the outer sleeve and the pump
Cylinder is coaxially disposed, and the plunger is arranged on pump barrel inner cavity, and pump barrel includes short pump barrel and long pump barrel, the short pump barrel and the long pump barrel
It is connected by box cupling on long pump barrel, short pump barrel is connected to form by two sections of pump barrels by box cupling under short pump barrel, and the top of short pump barrel leads to
Cross box cupling on short pump barrel with the outer sleeve top to be connected, be provided with intercommunicating pore, the lower part of long pump barrel under the short pump barrel on box cupling
Equipped with box cupling under long pump barrel, long pump barrel bottom is equipped with pump barrel inlet valve, and plunger head is provided with oil outlet, and it is fuel-displaced that top is equipped with plunger
Valve, plunger base are equipped with plunger inlet valve.
By such scheme, box cupling is the cylindrical tube structure equipped with external screw thread and internal thread on the short pump barrel, short pump barrel
Upper box cupling is coated at the short pump barrel top and is threadedly coupled, and box cupling is threadedly coupled with the outer sleeve top on short pump barrel；It is described
Box cupling is cylindrical tube structure of the outer circumferential surface equipped with fin vertically under short pump barrel, and connection is provided between adjacent two fins
Hole；The upper and lower box cupling of long pump barrel is the cylindrical tube structure for the fin that outer circumferential surface is equipped with vertically.
By such scheme, the level pressure one-way watering valve includes valve nozzle, supporting sleeve, valve seat, spool, spring, valve body, plug wire
And connecting tube, for the valve body to set female cylindrical tube structure, valve body both sides are arranged with valve opening, valve interior wall middle part
Circumferentially arranged with opening, the opening is connected with the valve opening, is equipped with valve nozzle, support tube, valve in valve opening successively from lower to upper
Seat, spool, spring and plug wire, valve nozzle and plug wire are the externally threaded cylindrical tube structure that is equipped with of T-shape, valve nozzle and plug wire point
Be not connected with the bottom of valve opening and screw top, the upper and lower ends of support tube are abutted against with valve seat and valve nozzle respectively, spring it is upper
Lower both ends are abutted against with plug wire and spool respectively, the connecting tube be equipped with externally threaded cylindrical tube structure, connecting tube it is upper
The lower thread of portion and valve body connects.
The beneficial effects of the invention are as follows：A kind of integrated flow string of anti-salt oil recovery for salt crust oil well is provided, will
Anti- salt flow string is integrated, and the anti-salt cost for oil production of oil well between salt is greatly lowered, and simplifies anti-salt block-relief oil production technique work
Sequence, improves oil field development benefit.
Brief description of the drawings
Fig. 1 is the structure diagram of one embodiment of the invention.
Fig. 2 is the structure diagram of the anti-salt injection-extraction pump of one embodiment of the invention.
Fig. 3 is the structure diagram of the level pressure one-way watering valve of one embodiment of the invention.
Fig. 4 be one embodiment of the invention short pump barrel under box cupling structure diagram
Wherein：1. anti-salt injection-extraction pump, 2. level pressure one-way watering valves, 3. safety joints, 4. packers, 5. screen casings, 6. starting tapers,
7. casing, 8. inter salt reservoirs, 9. artificials bottom of a well, 10. outer sleeves, 11. plungers, 12. short pump barrels, 13. long pump barrels, 14. short pump barrels
Upper box cupling, box cupling under 15. short pump barrels, box cupling on 16. long pump barrels, box cupling under 17. long pump barrels, 18. fins, 19. intercommunicating pores, 20.
Pump barrel inlet valve, 21. plunger inlet valves, 22. plunger delivery valves, 23. oil outlets, 24. valve nozzles, 25. supporting sleeves, 26. valve seats,
27. spool, 28. springs, 29. valve bodies, 30. plug wires, 31. connecting tubes, 32. openings.
Embodiment
To more fully understand the present invention, the invention will be further described with reference to the accompanying drawings and examples.
As shown in Figs. 1-3, a kind of integrated flow string of anti-salt oil recovery for salt crust oil well, including from top to bottom successively
Anti- salt injection-extraction pump 1, level pressure one-way watering valve 2, safety joint 3, packer 4, screen casing 5 and the starting taper 6 of connection, anti-salt injection-extraction pump bag
Outer sleeve 10, pump barrel and plunger 11 are included, outer sleeve is coaxially disposed with pump barrel, and plunger is arranged on pump barrel inner cavity, and pump barrel includes short pump barrel
12 and long pump barrel 13, short pump barrel be connected with long pump barrel by box cupling 16 on long pump barrel, short pump barrel passes through short pump barrel by two sections of pump barrels
Lower box cupling 15 is connected to form, and the top of short pump barrel is connected by box cupling on short pump barrel 14 with the outer sleeve top, under short pump barrel
Intercommunicating pore 19 is provided with box cupling 15, the lower part of long pump barrel is equipped with box cupling 17 under long pump barrel, and long pump barrel bottom is equipped with pump barrel inlet valve
20, plunger head is provided with oil outlet 23, and top is equipped with plunger delivery valve 22, and plunger base is equipped with plunger inlet valve 21.
Box cupling is the cylindrical tube structure equipped with external screw thread and internal thread on short pump barrel, it is coated at short pump barrel top and spiral shell
Line connects, and box cupling is threadedly coupled with outer sleeve top on short pump barrel；Box cupling is outer circumferential surface equipped with wing vertically under short pump barrel
The cylindrical tube structure (see Fig. 4) of piece 18, is provided with intercommunicating pore between adjacent two fins；The long upper and lower box cupling of pump barrel is periphery
Face is equipped with the cylindrical tube structure of fin vertically
Level pressure one-way watering valve includes valve nozzle 24, supporting sleeve 25, valve seat 26, spool 27, spring 28, valve body 29, plug wire 30
With connecting tube 31, valve body is sets female cylindrical tube structure, and valve body both sides are arranged with valve opening, and inner wall middle part is circumferentially
Equipped with opening 32, opening is connected with valve opening, is equipped with valve nozzle, support tube, valve seat, spool, spring in valve opening successively from lower to upper
And plug wire, valve nozzle and plug wire are the externally threaded cylindrical tube structure that is equipped with of T-shape, valve nozzle and the plug wire bottom with valve opening respectively
Portion is connected with screw top, and the upper and lower ends of support tube are abutted against with valve seat and valve nozzle respectively, the upper and lower ends of spring respectively with
Plug wire and spool abut against, and connecting tube is equipped with externally threaded cylindrical tube structure, the top of connecting tube and the lower part spiral shell of valve body
Line connects.
Pump barrel inner surface Nickel Plating Treatment, improves the surface accuracy of pump barrel and plunger and wear-resisting, corrosion resistance, makes surface
It is smooth to be not easy salt crust, prevent salt blocking plunger, be connected by outer sleeve with level pressure one-way watering valve, avoid being connected directly between pump barrel
On cause pump fail.
In use, whole tubing string is assembled the precalculated position in rear tripping in casing 7, packer set, is normally recovering the oil
When, plunger can will block intercommunicating pore, when needing to inject the anti-salt de-plugging of salt inhibitor, decentralization plunger to pump barrel inlet valve, pump barrel
Connected with inside and outside outer sleeve, inject salt inhibitor, flowed down by the gap between outer sleeve and pump barrel, finally enter inter salt reservoir
8, reduce activity duration and operating cost, inter salt reservoir is located at below the top of artificial bottom of a well 9 and starting taper.
By level pressure one-way watering valve, control pressure water mixing can be pumped with water mixing when strata pressure is high in advance, later stage reduction is mixed
Water pressure uses normal pressure water mixing, realizes continuous water mixing, dilutes oil well output high salinity wells liquid, it is ensured that high subsalt well is normally given birth to
Production.
Claims (3)
- The integrated flow string 1. a kind of anti-salt for salt crust oil well recovers the oil, it is characterised in that including connecting successively from top to bottom Anti- salt injection-extraction pump, level pressure one-way watering valve, safety joint, packer, screen casing and the starting taper connect；The anti-salt injection-extraction pump includes outer Sleeve, pump barrel and plunger, the outer sleeve are coaxially disposed with the pump barrel, and the plunger is arranged on pump barrel inner cavity, and pump barrel includes short Pump barrel and long pump barrel, the short pump barrel are connected with the long pump barrel by box cupling on long pump barrel, and short pump barrel is passed through by two sections of pump barrels Box cupling is connected to form under short pump barrel, and the top of short pump barrel is connected by box cupling on short pump barrel with the outer sleeve top, described short Intercommunicating pore is provided with pump barrel on box cupling, the lower part of long pump barrel is equipped with box cupling under long pump barrel, and long pump barrel bottom is equipped with pump barrel inlet valve, Plunger head is provided with oil outlet, and top is equipped with plunger delivery valve, and plunger base is equipped with plunger inlet valve.
- The integrated flow string 2. a kind of anti-salt for salt crust oil well according to claim 1 recovers the oil, it is characterised in that Box cupling is the cylindrical tube structure equipped with external screw thread and internal thread on the short pump barrel, and box cupling is coated at the short pump on short pump barrel Cylinder top is threadedly coupled, and box cupling is threadedly coupled with the outer sleeve top on short pump barrel；Box cupling is outer circumferential surface under the short pump barrel The cylindrical tube structure of fin vertically is equipped with, intercommunicating pore is provided between adjacent two fins；The long pump barrel is upper and lower to be connect Hoop is the cylindrical tube structure for the fin that outer circumferential surface is equipped with vertically.
- The integrated flow string 3. a kind of anti-salt for salt crust oil well according to claim 1 or 2 recovers the oil, its feature exist In the level pressure one-way watering valve includes valve nozzle, supporting sleeve, valve seat, spool, spring, valve body, plug wire and connecting tube, the valve For body to set female cylindrical tube structure, valve body both sides are arranged with valve opening, circumferentially arranged with opening in the middle part of valve interior wall, The opening is connected with the valve opening, is equipped with valve nozzle, support tube, valve seat, spool, spring in valve opening successively from lower to upper and blocks up Silk, valve nozzle and plug wire are the externally threaded cylindrical tube structure that is equipped with of T-shape, valve nozzle and plug wire respectively with the bottom of valve opening and Screw top connects, and the upper and lower ends of support tube abut against with valve seat and valve nozzle respectively, the upper and lower ends of spring respectively with plug wire Abutted against with spool, the connecting tube is equipped with externally threaded cylindrical tube structure, the top of connecting tube and the lower part spiral shell of valve body Line connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885069.1A CN105298450B (en) | 2015-12-04 | 2015-12-04 | A kind of integrated flow string of anti-salt oil recovery for salt crust oil well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885069.1A CN105298450B (en) | 2015-12-04 | 2015-12-04 | A kind of integrated flow string of anti-salt oil recovery for salt crust oil well |
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| Publication Number | Publication Date |
|---|---|
| CN105298450A CN105298450A (en) | 2016-02-03 |
| CN105298450B true CN105298450B (en) | 2018-05-01 |
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| CN201510885069.1A Active CN105298450B (en) | 2015-12-04 | 2015-12-04 | A kind of integrated flow string of anti-salt oil recovery for salt crust oil well |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427390A (en) * | 2020-09-02 | 2022-05-03 | 中国石油化工股份有限公司 | Salt-removing and salt-preventing injection-production integrated pipe column |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035339A (en) * | 1989-01-15 | 1989-09-06 | 萧南平 | Pressurized water-filling method and device thereof in the well |
| US6032743A (en) * | 1996-01-02 | 2000-03-07 | Texaco Inc. | Method and apparatus for reducing gas well production costs using improved downhole valves |
| CN2674148Y (en) * | 2003-08-09 | 2005-01-26 | 中国石化胜利油田有限公司滨南采油厂 | Tube like pump for feeding and sucking |
| CN2674146Y (en) * | 2004-01-05 | 2005-01-26 | 王坤 | Scale-proof injection type oil sucking pump |
| CN2688927Y (en) * | 2004-04-05 | 2005-03-30 | 中原石油勘探局机械制造总厂 | Salt-proof pumping units |
| RU2305763C1 (en) * | 2005-12-08 | 2007-09-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Highly-viscous oil production device |
| CN203515529U (en) * | 2013-10-06 | 2014-04-02 | 赵风超 | Novel water-injected oil well oil recovery device |
| CN203879719U (en) * | 2014-04-10 | 2014-10-15 | 中国石油化工股份有限公司 | Integrated gas injecting and oil extracting pump |
-
2015
- 2015-12-04 CN CN201510885069.1A patent/CN105298450B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035339A (en) * | 1989-01-15 | 1989-09-06 | 萧南平 | Pressurized water-filling method and device thereof in the well |
| US6032743A (en) * | 1996-01-02 | 2000-03-07 | Texaco Inc. | Method and apparatus for reducing gas well production costs using improved downhole valves |
| CN2674148Y (en) * | 2003-08-09 | 2005-01-26 | 中国石化胜利油田有限公司滨南采油厂 | Tube like pump for feeding and sucking |
| CN2674146Y (en) * | 2004-01-05 | 2005-01-26 | 王坤 | Scale-proof injection type oil sucking pump |
| CN2688927Y (en) * | 2004-04-05 | 2005-03-30 | 中原石油勘探局机械制造总厂 | Salt-proof pumping units |
| RU2305763C1 (en) * | 2005-12-08 | 2007-09-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Highly-viscous oil production device |
| CN203515529U (en) * | 2013-10-06 | 2014-04-02 | 赵风超 | Novel water-injected oil well oil recovery device |
| CN203879719U (en) * | 2014-04-10 | 2014-10-15 | 中国石油化工股份有限公司 | Integrated gas injecting and oil extracting pump |
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| CN105298450A (en) | 2016-02-03 |
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Effective date of registration: 20200102 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company Patentee after: China Petrochemical Co., Ltd. Address before: 433123 Xiangyang development road, Qianjiang, Hubei Province, No. 1 Patentee before: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company |