CN105298450A - Salt prevention and oil extraction integrated production tube column for salt-deposited oil well - Google Patents
Salt prevention and oil extraction integrated production tube column for salt-deposited oil well Download PDFInfo
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- CN105298450A CN105298450A CN201510885069.1A CN201510885069A CN105298450A CN 105298450 A CN105298450 A CN 105298450A CN 201510885069 A CN201510885069 A CN 201510885069A CN 105298450 A CN105298450 A CN 105298450A
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- pump barrel
- valve
- salt
- oil
- box cupling
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Abstract
The invention provides a salt prevention and oil extraction integrated production tube column for a salt-deposited oil well. The salt prevention and oil extraction integrated production tube column comprises a salt prevention injection-production pump, a constant-pressure one-way water adding valve, a safety joint, a packer, a screening pipe and a guide cone, wherein the salt prevention injection-production pump comprises an outer sleeve, a pump cylinder and a plunger piston, the outer sleeve and the pump cylinder are coaxially arranged, and the plunger piston is arranged in the inner cavity of the pump cylinder. The pump cylinder comprises a short pump cylinder and a long pump cylinder, the short pump cylinder and the long pump cylinder are connected through a long pump cylinder upper coupling, a pump cylinder oil inlet valve is arranged at the bottom of the long pump cylinder, an oil outlet hole is formed in the top of the plunger piston, a plunger piston oil outlet valve is arranged at the upper portion of the plunger piston, and a plunger piston oil inlet valve is arranged at the bottom of the plunger piston. The salt prevention and oil extraction integrated production tube column is simple in structure, simple and convenient to operate and low in oil extraction cost.
Description
Technical field
The invention belongs to the technical field of salt crust well recovery, particularly relate to a kind of anti-salt for salt crust oil well and to recover the oil integrated flow string.
Background technology
Between salt, stratum is source bed and oil reservoirs, and its oil gas generated forms argillaceous dolomite oil reservoir between salt due to upper and lower rock salt packing (closed system), contains abundant petroleum resources.Between salt in argillaceous dolomite oil reservoir oil well production process, along with temperature, pressure drop, salt solubility declines, salt-pepper noise blocking seepage channel, effective production time is short, and conventional anti-salt block-relief oil production technique is lower anti-salt de-plugging tubing string construction after having needed tubing pump to take out tubing string, descends pump to take out tubing string after construction again, cause anti-salt block-relief oil production cost of production high, oil well economical and effective exploitation between salt cannot be realized.
Traditional anti-salt oil production technology is that anti-salt de-plugging tubing string separates with oil recovery flow string: anti-salt tubing string is identical with acidifying tubing string; construction enters the anti-salt construction of the setting protective casing of tubing string with hydraulic packer at present; then after tripping out anti-salt de-plugging tubing string, under enter tubing pump take out tubing string produce.The anti-salt block-relief oil production complex procedures of tradition, cost for oil production is high, has a strong impact on and constrain oil well economical and effective exploitation between salt.
That is, traditional water squeezing oil production technology, applies when the water squeezing cycle is shorter and shorter and is restricted.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned Problems existing, there is provided a kind of anti-salt for salt crust oil well to recover the oil integrated flow string, make it once enter down at salt crust oil well, realize repeatedly anti-salt and recover the oil, reduce oil recovery cost of production, improve oil field development benefit.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of anti-salt for salt crust oil well recovers the oil integrated flow string, it is characterized in that, comprise connect successively from top to bottom anti-salt injection-extraction pump, level pressure one-way watering valve, safety joint, packer, screen casing and starting taper, described anti-salt injection-extraction pump comprises outer sleeve, pump barrel and plunger, described outer sleeve and described pump barrel are coaxially arranged, described plunger is located at pump barrel inner chamber, pump barrel comprises short pump barrel and long pump barrel, described short pump barrel is connected by box cupling on long pump barrel with described long pump barrel, short pump barrel is connected to form by box cupling under short pump barrel by two sections of pump barrels, the top of short pump barrel is connected with described outer sleeve top by box cupling on short pump barrel, under described short pump barrel, box cupling has intercommunicating pore, the bottom of long pump barrel is provided with box cupling under long pump barrel, pump barrel inlet valve is provided with bottom long pump barrel, plunger head has oil outlet, top is provided with plunger delivery valve, plunger base is provided with plunger inlet valve.
By such scheme, on described short pump barrel, box cupling is the cylindrical tube structure being provided with external screw thread and internal thread, and on short pump barrel, box cupling is coated at described short pump barrel top and is threaded, and on short pump barrel, box cupling is threaded with described outer sleeve top; Under described short pump barrel, box cupling is the cylindrical tube structure that outer peripheral face is provided with fin vertically, has intercommunicating pore between two adjacent fins; The upper and lower box cupling of described long pump barrel is the cylindrical tube structure that outer peripheral face is provided with fin vertically.
By such scheme, described level pressure one-way watering valve comprises valve nozzle, support set, valve seat, spool, spring, valve body, plug wire and tube connector, described valve body is for establishing female cylindrical tube structure, valve body bilateral symmetry is provided with valve opening, circumferentially opening is provided with in the middle part of valve interior wall, described opening is connected with described valve opening, valve nozzle is provided with successively from lower to upper in valve opening, stay pipe, valve seat, spool, spring and plug wire, what valve nozzle and plug wire were T-shape is provided with externally threaded cylindrical tube structure, valve nozzle and plug wire are connected with the bottom of valve opening and screw top respectively, the two ends up and down of stay pipe abut against with valve seat and valve nozzle respectively, the two ends up and down of spring abut against with plug wire and spool respectively, described tube connector is for being provided with externally threaded cylindrical tube structure, the top of tube connector is connected with the lower thread of valve body.
The invention has the beneficial effects as follows: provide a kind of anti-salt for salt crust oil well and to recover the oil integrated flow string, by integrated for anti-salt flow string, significantly reduce the anti-salt cost for oil production of oil well between salt, simplify anti-salt block-relief oil production technique process, improve oil field development benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of the anti-salt injection-extraction pump of one embodiment of the invention.
Fig. 3 is the structural representation of the level pressure one-way watering valve of one embodiment of the invention.
Fig. 4 is the structural representation of box cupling under the short pump barrel of one embodiment of the invention
Wherein: 1. anti-salt injection-extraction pump, 2. level pressure one-way watering valve, 3. safety joint, 4. packer, 5. screen casing, 6. starting taper, 7. sleeve pipe, 8. inter salt reservoir, 9. artificial bottom of a well, 10. outer sleeve, 11. plungers, 12. short pump barrels, 13. long pump barrels, box cupling on 14. short pump barrels, 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 valves, 21. plunger inlet valves, 22. plunger delivery valves, 23. oil outlets, 24. valve nozzles, 25. support sets, 26. valve seats, 27. spools, 28. springs, 29. valve bodies, 30. plug wires, 31. tube connectors, 32. openings.
Detailed description of the invention
For understanding the present invention better, below in conjunction with drawings and Examples, the invention will be further described.
As Figure 1-3, a kind of anti-salt for salt crust oil well recovers the oil integrated flow string, comprise the anti-salt injection-extraction pump 1 connected successively from top to bottom, level pressure one-way watering valve 2, safety joint 3, packer 4, screen casing 5 and starting taper 6, anti-salt injection-extraction pump comprises outer sleeve 10, pump barrel and plunger 11, outer sleeve and pump barrel are coaxially arranged, plunger is located at pump barrel inner chamber, pump barrel comprises short pump barrel 12 and long pump barrel 13, short pump barrel is connected by box cupling 16 on long pump barrel with long pump barrel, short pump barrel is connected to form by box cupling under short pump barrel 15 by two sections of pump barrels, the top of short pump barrel is connected with described outer sleeve top by box cupling on short pump barrel 14, under short pump barrel, box cupling 15 has intercommunicating pore 19, the bottom of long pump barrel is provided with box cupling 17 under long pump barrel, pump barrel inlet valve 20 is provided with bottom long pump barrel, plunger head has oil outlet 23, top is provided with plunger delivery valve 22, plunger base is provided with plunger inlet valve 21.
On short pump barrel, box cupling is the cylindrical tube structure being provided with external screw thread and internal thread, and it is coated at short pump barrel top and is threaded, and on short pump barrel, box cupling is threaded with outer sleeve top; Under short pump barrel, box cupling is the cylindrical tube structure (see Fig. 4) that outer peripheral face is provided with fin 18 vertically, has intercommunicating pore between two adjacent fins; The upper and lower box cupling of long pump barrel is the cylindrical tube structure that outer peripheral face is provided with fin vertically
Level pressure one-way watering valve comprises valve nozzle 24, support set 25, valve seat 26, spool 27, spring 28, valve body 29, plug wire 30 and tube connector 31, valve body is for establishing female cylindrical tube structure, valve body bilateral symmetry is provided with valve opening, opening 32 is circumferentially provided with in the middle part of inwall, opening is connected with valve opening, valve nozzle is provided with successively from lower to upper in valve opening, stay pipe, valve seat, spool, spring and plug wire, what valve nozzle and plug wire were T-shape is provided with externally threaded cylindrical tube structure, valve nozzle and plug wire are connected with the bottom of valve opening and screw top respectively, the two ends up and down of stay pipe abut against with valve seat and valve nozzle respectively, the two ends up and down of spring abut against with plug wire and spool respectively, tube connector is for being provided with externally threaded cylindrical tube structure, the top of tube connector is connected with the lower thread of valve body.
Pump barrel inner surface Nickel Plating Treatment, improve the surface accuracy of pump barrel and plunger and wear-resisting, decay resistance, make smooth surface not easily salt crust, prevent salt blocking plunger, be connected with level pressure one-way watering valve by outer sleeve, avoid being connected directly between on pump barrel and cause pump to lose efficacy.
During use, whole tubing string is assembled rear under enter precalculated position in sleeve pipe 7, packer set, when normally recovering the oil, plunger by shutoff intercommunicating pore, when the anti-salt de-plugging of needs injection salt inhibitor, can transfer plunger to pump barrel inlet valve, pump barrel is communicated with outer sleeve is inside and outside, inject salt inhibitor, dirty by the gap between outer sleeve and pump barrel, finally enter inter salt reservoir 8, decrease activity duration and operating cost, inter salt reservoir is positioned at above artificial bottom of a well 9 and below starting taper.
By level pressure one-way watering valve, can use the water mixing of water mixing pump controlled pressure in advance during strata pressure height, the later stage reduces water mixing pressure or adopts normal pressure water mixing, realizes continuous water mixing, and dilution oil well output high salinity wells liquid, guarantees that high subsalt well is normally produced.
Claims (3)
1. to recover the oil an integrated flow string for the anti-salt of salt crust oil well, it is characterized in that, comprise connect successively from top to bottom anti-salt injection-extraction pump, level pressure one-way watering valve, safety joint, packer, screen casing and starting taper, described anti-salt injection-extraction pump comprises outer sleeve, pump barrel and plunger, described outer sleeve and described pump barrel are coaxially arranged, described plunger is located at pump barrel inner chamber, pump barrel comprises short pump barrel and long pump barrel, described short pump barrel is connected by box cupling on long pump barrel with described long pump barrel, short pump barrel is connected to form by box cupling under short pump barrel by two sections of pump barrels, the top of short pump barrel is connected with described outer sleeve top by box cupling on short pump barrel, under described short pump barrel, box cupling has intercommunicating pore, the bottom of long pump barrel is provided with box cupling under long pump barrel, pump barrel inlet valve is provided with bottom long pump barrel, plunger head has oil outlet, top is provided with plunger delivery valve, plunger base is provided with plunger inlet valve.
2. a kind of anti-salt for salt crust oil well according to claim 1 recovers the oil integrated flow string, it is characterized in that, on described short pump barrel, box cupling is the cylindrical tube structure being provided with external screw thread and internal thread, on short pump barrel, box cupling is coated at described short pump barrel top and is threaded, and on short pump barrel, box cupling is threaded with described outer sleeve top; Under described short pump barrel, box cupling is the cylindrical tube structure that outer peripheral face is provided with fin vertically, has intercommunicating pore between two adjacent fins; The upper and lower box cupling of described long pump barrel is the cylindrical tube structure that outer peripheral face is provided with fin vertically.
3. a kind of anti-salt for salt crust oil well according to claim 1 and 2 recovers the oil integrated flow string, it is characterized in that, described level pressure one-way watering valve comprises valve nozzle, support set, valve seat, spool, spring, valve body, plug wire and tube connector, described valve body is for establishing female cylindrical tube structure, valve body bilateral symmetry is provided with valve opening, circumferentially opening is provided with in the middle part of valve interior wall, described opening is connected with described valve opening, valve nozzle is provided with successively from lower to upper in valve opening, stay pipe, valve seat, spool, spring and plug wire, what valve nozzle and plug wire were T-shape is provided with externally threaded cylindrical tube structure, valve nozzle and plug wire are connected with the bottom of valve opening and screw top respectively, the two ends up and down of stay pipe abut against with valve seat and valve nozzle respectively, the two ends up and down of spring abut against with plug wire and spool respectively, described tube connector is for being provided with externally threaded cylindrical tube structure, the top of tube connector is connected with the lower thread of valve body.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN105298450A true CN105298450A (en) | 2016-02-03 |
| CN105298450B CN105298450B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (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 |
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|---|---|---|---|---|
| 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 |
| CN2674146Y (en) * | 2004-01-05 | 2005-01-26 | 王坤 | Scale-proof injection type oil sucking pump |
| 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 |
| 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 |
Cited By (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 |
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| CN105298450B (en) | 2018-05-01 |
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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 |
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