CN2755279Y - Gas-proof tubular column against pollution of oil well - Google Patents
Gas-proof tubular column against pollution of oil well Download PDFInfo
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- CN2755279Y CN2755279Y CN 200420006210 CN200420006210U CN2755279Y CN 2755279 Y CN2755279 Y CN 2755279Y CN 200420006210 CN200420006210 CN 200420006210 CN 200420006210 U CN200420006210 U CN 200420006210U CN 2755279 Y CN2755279 Y CN 2755279Y
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- oil pipe
- oil
- deep well
- pipe
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Abstract
The utility model relates to a gas-proof pipe column against pollution of an oil well, which is the process engineering for increasing yield and effect applied to gas and pollution proof well washing of oil pumping production of oil fields. The lower part of a deep well pump of a production pipe column for an oil pumping well is connected with a deep well pump joint, an outer layer oil pipe, a telescopic adjustable connector, an exhausting joint, a packer, an annular liquid-gas separation device, an anti-pollution device, a sleeve pipe scraping device, an oil pipe and a screw-plug by threads, wherein the inner layer oil pipe, the annular liquid-gas separation device and the deep well pump joint are connected by threads. An oil rod is loaded into the oil pipe and is connected with a piston in the deep well pump by threads. The utility model has three kinds of different structure types which are suitable for oil wells of different yield, and thus the problem that the influence of gas to the oil pumping efficiency of the deep well pump is reduced when the oil pumping well is used for production is solved, and the anti pollution well washing is achieved. Because the annular liquid-gas separation device, the anti-pollution device, etc. are used, the exhaust effect of the pipe column is good, and at the same time, the well washing of oil layers can be protected from pollution, and thus the oil pumping efficiency of the deep well pump is enhanced and the oil well yield is increased.
Description
Technical field: pumpingh well gas-tight anti-pollution process tubing string is a kind of technology that increases production and improves productivity that gas-tight and anti-pollution well-flushing are produced in the oil field oil recovery that is applied to.
Background technology: at present oil field gas-tight process pipe string commonly used is gas anchor and a downhole oil gas separating device under the mounting shaft under oil well pump, and the down-hole mixed oil and gas promptly enters oil well pump by gas anchor and downhole oil gas separating device, and separating effect is not fine.
Summary of the invention: the invention the purpose of this utility model provides a cover can overcome above-mentioned defective; according to oil well gas production and liquid-producing capacity; good exhaust effect; can effectively reduce the influence of mine gas to deep well pump work; improve deep well pump efficient; realize anti-pollution well-flushing; the protection oil reservoir; increase the pumpingh well gas-tight anti-pollution process tubing string of oil well output; this cover process pipe string has three kinds of different types of structure; because adopted down hole annular liquid-gas separation device and the proportioning pump two-tube technology that enters the mouth; make after the Oil-gas Separation of down-hole or the liquid after the natural subsidence has sufficient sinking time and good exhaust passage; the gas that enters in the deep well pump is obviously reduced; thereby reach the effect of gas-tight; simultaneously in the down hole annular liquid-gas separation device, connect environmental control system, flushing fluid polluted reservoir in the time of can preventing well-flushing effectively, and utilize flexible adjustable connector that outer tube can normally be connected.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
1, first type gas-tight anti-pollution process tubing string be in pumpingh well flow string deep well pump bottom with screw thread and deep well pump jointing, outer oil pipe, flexible adjustable connector, exhaust joint, packer, annular liquid-gas separation device, environmental control system, sleeve pipe scrape the bits device, plug is connected, the internal layer oil pipe is connected with screw thread with the deep well pump jointing with annular liquid-gas separation device, beam hanger be lowered in the oil pipe with deep well pump in piston be connected with screw thread and form, internal layer oil pipe and outer oil length of tube can be according to oil well aerogenesis production fluid situation flexible modulation.
2, second type gas-tight anti-pollution process tubing string is at pumpingh well flow string deep well pump jointing top screwed connection deep well pump, exhaust joint, packer, cross pump exhaust pillar, use the outer oil pipe of screwed connection in deep well pump jointing bottom, flexible adjustable connector, environmental control system, the annular liquid-gas separation device, sleeve pipe is scraped the bits device, oil pipe, plug, the internal layer oil pipe is connected with screw thread with the deep well pump jointing with annular liquid-gas separation device, the beam hanger bottom connects the beam hanger on-off connector, be lowered in the oil pipe with deep well pump in the beam hanger on-off connector on piston top peg graft and form, internal layer oil pipe and outer oil length of tube can be according to oil well aerogenesis production fluid situation flexible modulation.
3, the gas-tight anti-pollution process tubing string of the third type is to scrape bits device, oily plug in oil pumping flow string deep well pump bottom with screwed connection deep well pump jointing, outer oil pipe, flexible adjustable connector, the pure liquid liquid inlet joint of oil gas, packer, environmental control system, sleeve pipe, the internal layer oil pipe be connected with the deep well pump jointing in the pure liquid liquid inlet joint of liquid gas with screwed connection, beam hanger be lowered in the oil pipe with deep well pump in piston be connected with screw thread and form, internal layer oil pipe and outer oil length of tube can be according to oil well aerogenesis production fluid situation flexible modulation.
4, annular liquid-gas separation device by annular liquid-gas separation device body connect central tube with coupling screw thread in body, on central tube weld separation umbrella, body top with the top connection of screwed connection body with the central tube top connection, have the import of liquid gas and can be connected environmental control system and form with the lower contact of screwed connection body and central tube lower contact, body middle part in liquid gas import department in the body bottom.
5, environmental control system by the environmental control system body and body interior with the valve seat and the valve cover of screwed connection, movably valve ball, environmental control system body middle part be housed between valve seat and valve cover have that inlet opening and upper and lower side be made up of thread.
6, flexible adjustable connector: by flexible adjustable connector body and body and lower contact and pressure cap with screw thread be connected, O-ring seal is equipped with in lower contact, insert the adjusting central tube in body, adjusting central tube bottom and O-ring seal is equipped with on top and on top with the top connection of screwed connection oil pipe, in pressure cap, jump ring is housed and conical ring is formed.
Technological principle:
First type of gas-tight anti-pollution process tubing string main technique principle is: press the G.I.H of the tubing string order of connection shown in the accompanying drawing 1, earlier with packer setting, at this moment the liquid gas mixing material in the oil reservoir flows into after the interior arrival of the well oil sets annular space, presses arrow
Direction is at first flowing into by environmental control system in the annular liquid-gas separation device, and after Gravity Separation, gas is upwards pressed arrow
Direction, from the inner and outer pipes annular space, discharge in the well from oil casing annular space by exhaust joint, liquid after separating, press arrow (→) direction downwards, from the inner and outer pipes annular space, enter in the pump by interior pipe, the length of gas and oil separating plant bottom outer tube and interior pipe can be adjusted arbitrarily according to the size of oil well gas production, and the purpose of lengthening is to the liquid after separating, increase and flow downward the time, to not separating a small amount of completely gas, there is adequate time to carry out secondary separation, thereby further reduces the gas that enters in the pump, increase deep well pump oil pumping efficient, the effect of environmental control system is during from the oil sets annular space well-flushing, and flushing fluid can not enter oil reservoir, can prevent polluted reservoir effectively.
Second type of gas-tight anti-pollution process tubing string cardinal principle is: press the G.I.H of the tubing string order of connection shown in the accompanying drawing 2, earlier with packer setting, packer should be in the above position of producing fluid level, at this moment the liquid gas mixture in the oil reservoir, after flowing into the interior arrival of well oil sets annular space, press arrow
Direction by environmental control system annular liquid-gas separation device, makes the gas of separating, and presses arrow
Direction moves upward, discharge from exhaust joint by the inner and outer pipes annular space and by deep well pump and mistake pump pillar annular space, the position of exhaust joint is remained on more than the producing fluid level, can improve exhaust effect like this and can guarantee that again deep well pump is below producing fluid level when producing, increase the pressure of pump intake, improve deep well pump efficient, liquid after separating, press arrow (→) direction downwards, from the inner and outer pipes annular space, enter in the pump by interior pipe, the length of gas and oil separating plant bottom outer tube and interior pipe is according to the size of oil well gas production, can adjust arbitrarily, the purpose of lengthening is to the liquid after separating, and increases to flow downward the time, to not separating a small amount of completely gas, there is adequate time to carry out secondary separation, thereby further reduce the gas that enters in the pump, increase deep well pump oil pumping efficient, the effect of environmental control system is during from the oil sets annular space well-flushing, flushing fluid can not enter oil reservoir, can prevent polluted reservoir effectively.
The third type gas-tight anti-pollution process tubing string cardinal principle is: press the G.I.H of the tubing string order of connection shown in the accompanying drawing 3, earlier with packer setting, at this moment after the liquid gas mixing material in the oil reservoir flows in the well, at first back down environmental control system and enter tubing string, by oil pipe inner and outer pipes length, the difference of specific gravity of liquid and gas is carried out sedimentation separation voluntarily in the dependence mixing material, and liquid gas mixing material is pressed arrow in the well
Direction flows into from environmental control system, at first flows into the inner and outer pipes annular space, and the liquid gas inlet opening from the pure liquid liquid inlet joint of liquid gas flows into oil sets annular space, and gas is pressed arrow
Direction move upward, discharge well from oil sets annular space in, neat liquid is directed downwards motion by arrow (→), by pure liquid inlet opening flow through in pipe enter in the pump, deep well pump can remain on below the producing fluid level during production, and environmental control system cuts out during well-flushing, prevents that flushing fluid from entering oil reservoir.
Annular liquid-gas separation device technological principle is: liquid enters liquid gas by environmental control system to be separated in body and the base pipe annulus, by separating the effect of umbrella, make the gas body top connection of upwards flowing through, entering oil sets annular space discharges in the well, the liquid body lower contact of flowing through downwards, behind the pipe, extract ground out in entering by interior pipe and outer tube annular space, finish liquid gas and separate purpose by deep well pump.
The environmental control system technological principle is: mixing material backs down valve ball and enters and carry out liquid gas in the annular liquid-gas separation device body and separate from the environmental control system feed pathway during gas-tight; When anti-pollution, flushing fluid, enters in the liquid-gas separation device body by interior pipe and outer tube annular space from exhaust joint, the separation umbrella of flowing through, valve ball is pressed on the valve seat, makes flushing fluid can't enter oil reservoir, directly enter interior pipe back by deep well pump extraction ground from interior pipe and outer tube annular space.
Flexible adjustable connector technological principle is: when interior pipe connection is finished, utilize flexible adjustable connector, carry out the adjusting of outer length of tube, after the position of regulating central tube is determined, jump ring is put into body, put into conical ring again, then pressure cap is tightened, then can be finished the connection of outer tube.
Advantage of the present invention is:
1, by the liquid after the annular liquid-gas separation device separation, before entering deep well pump, has fully to flow downward the time, help the secondary separation of gas
2, internal layer oil pipe and outer oil pipe tubing length can be according to oil well aerogenesis production fluid situation flexible modulation.
3, three types of technology can satisfy the needs of dissimilar production fluid amounts, gas production well, preferred leeway abundance.
4, second type of process pipe string can satisfy the certain degree of depth of deep well pump submergence maintenance, increases pump inlet pressure.
5, can prevent that flushing fluid from entering oil reservoir during well-flushing, protection oil reservoir well-flushing is not contaminated.
6, tubing string good exhaust effect can effectively reduce the influence of mine gas to deep well pump work, improves deep well pump oil pumping efficient, increases oil well output.
Description of drawings:
Accompanying drawing 1 is the pumpingh well gas-tight anti-pollution process tubing string first kinds of structures figure;
Accompanying drawing 2 is pumpingh well gas-tight anti-pollution process tubing string second kinds of structures figure;
Accompanying drawing 3 is the third type structure of pumpingh well gas-tight anti-pollution process tubing string figure;
Accompanying drawing 4 is annular liquid-gas separation device structure charts;
Accompanying drawing 5 is environmental control system structure charts;
Accompanying drawing 6 is flexible adjustable connector construction figure;
The specific embodiment:
Accompanying drawing 1: be first type of gas-tight anti-pollution process tubular column structure schematic diagram of the present utility model: the process pipe string structure is from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), outer oil pipe (4), annular liquid-gas separation device (6), environmental control system (26), packer (7), exhaust joint (8), flexible adjustable connector (9), deep well pump jointing (10), deep well pump (11), oil pipe (2) is connected with screw thread, top and bottom that internal layer oil pipe (5) is buckled in annular liquid-gas separation device (6) with screwed connection, top internal layer oil pipe (5) is connected with interior the button with screw thread of deep well pump jointing (10) again, beam hanger (12) be lowered in the oil pipe (2) with deep well pump (11) in piston (41) form with screwed connection, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length;
Accompanying drawing 2: be second type of gas-tight anti-pollution process tubular column structure schematic diagram of the present utility model: from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), outer oil pipe (4), annular liquid-gas separation device (6), environmental control system (26), flexible adjustable connector (9), deep well pump jointing (10), cross pump exhaust pillar (13), packer (7), exhaust joint (8) is connected with screw thread, top and bottom that internal layer oil pipe (5) is buckled in annular liquid-gas separation device (6) with screwed connection, top internal layer oil pipe (5) is connected with interior the button with screw thread of deep well pump jointing (10) again, deep well pump (11) is connected with screw thread with interior the button with top oil pipe (2) of deep well pump jointing (10), beam hanger (12) bottom connect beam hanger on-off connector (14) be lowered in the oil pipe (2) with deep well pump (11) in the beam hanger on-off connector (14) on piston (41) top peg graft and form, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length;
Accompanying drawing 3: be the third type gas-tight anti-pollution process tubular column structure schematic diagram of the present utility model: from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), environmental control system (26), packer (7), the pure liquid liquid inlet joint of liquid gas (15), outer oil pipe (4), exhaust joint (8), flexible adjustable connector (9), deep well pump jointing (10), deep well pump (11), oil pipe (2) is connected with screw thread, on the pure liquid liquid inlet joint of liquid gas (15), have liquid gas inlet opening (16) and pure liquid inlet opening (17), internal layer oil pipe (5) with screwed connection in the pure liquid liquid inlet joint of liquid gas (15), buckle and deep well pump jointing (10) in smash, beam hanger (12) be lowered in the oil pipe (2) with deep well pump (11) in piston (41) be connected with screw thread and form, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length.
Accompanying drawing 4: be the utility model annular liquid-gas separation device (6) structural representation: annular liquid-gas separation device (6) structure is to use screwed connection central tube (20) by annular liquid-gas separation device body (19) with in body (19), weld separation umbrella (21) on central tube, body (19) top screwed connection body top connection (22) and central tube top connection (23), with screwed connection body lower contact (24) and central tube lower contact (25), body (19) middle part has the import of liquid gas also can be at liquid gas import department screwed connection environmental control system (26) in body (19) bottom.
Accompanying drawing 5: be the utility model environmental control system (26) structural representation: the structure of environmental control system (26) is by environmental control system body (27) with at body (27) inner valve seat (29) and valve cover (31) with screwed connection, movably valve ball (30) is housed between valve seat (29) and valve cover (31), and environmental control system body (27) middle part has inlet opening (28) and upper and lower side has thread (32) to form;
Accompanying drawing 6: be flexible adjustable connector (9) structural representation of the utility model: the structure of flexible adjustable connector (9) is to be connected with screw thread with pressure cap (36) with lower contact (34) with body (33) by flexible adjustable connector body (33), O-ring seal (40) is equipped with in lower contact (34), in body (33), insert and regulate central tube (39), regulate that O-ring seal (40) is equipped with on central tube (39) bottom and top and on top with screwed connection oil pipe top connection (38), jump ring (35) and conical ring (37) composition is housed in pressure cap (36).
Claims (6)
1, pumpingh well gas-tight anti-pollution process tubing string, first type of process pipe string structure is characterized in that: the process pipe string structure is from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), outer oil pipe (4), annular liquid-gas separation device (6), environmental control system (26), packer (7), exhaust joint (8), flexible adjustable connector (9), deep well pump jointing (10), deep well pump (11), oil pipe (2) is connected with screw thread, top and bottom that internal layer oil pipe (5) is buckled in annular liquid-gas separation device (6) with screwed connection, top internal layer oil pipe (5) is connected with interior the button with screw thread of deep well pump jointing (10) again, beam hanger (12) be lowered in the oil pipe (2) with deep well pump (11) in piston (41) form with screwed connection, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length.
2, pumpingh well gas-tight anti-pollution process tubing string, second type of process pipe string structure is characterized in that: the process pipe string structure is from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), outer oil pipe (4), annular liquid-gas separation device (6), environmental control system (26), flexible adjustable connector (9), deep well pump jointing (10), cross pump exhaust pillar (13), packer (7), exhaust joint (8) is connected with screw thread, top and bottom that internal layer oil pipe (5) is buckled in annular liquid-gas separation device (6) with screwed connection, top internal layer oil pipe (5) is connected with interior the button with screw thread of deep well pump jointing (10) again, deep well pump (11) is connected with screw thread with interior the button with top oil pipe (2) of deep well pump jointing (10), beam hanger (12) bottom connect beam hanger on-off connector (14) be lowered in the oil pipe (2) with deep well pump (11) in the beam hanger on-off connector (14) on piston (41) top peg graft and form, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length.
3, pumpingh well gas-tight anti-pollution process tubing string, the third type process tubular column structure is characterized in that: the process pipe string structure is from the bottom up by plug (1), oil pipe (2), sleeve pipe is scraped bits device (3), environmental control system (26), packer (7), the pure liquid liquid inlet joint of liquid gas (15), outer oil pipe (4), exhaust joint (8), flexible adjustable connector (9), deep well pump jointing (10), deep well pump (11), oil pipe (2) is connected with screw thread, on the pure liquid liquid inlet joint of liquid gas (15), have liquid gas inlet opening (16) and pure liquid inlet opening (17), internal layer oil pipe (5) with screwed connection in the pure liquid liquid inlet joint of liquid gas (15), buckle and deep well pump jointing (10) in smash, beam hanger (12) be lowered in the oil pipe (2) with deep well pump (11) in piston (41) be connected with screw thread and form, internal layer oil pipe (5) can be according to oil well aerogenesis production fluid situation flexible modulation with outer oil pipe (4) length.
4, according to right 1 described pumpingh well gas-tight anti-pollution process tubing string, it is characterized in that said annular liquid-gas separation device (6) structure is to use screwed connection central tube (20) by annular liquid-gas separation device body (19) with in body (19), weld separation umbrella (21) on central tube, body (19) top screwed connection body top connection (22) and central tube top connection (23), with screwed connection body lower contact (24) and central tube lower contact (25), body (19) middle part has the import of liquid gas also can be at liquid gas import department screwed connection environmental control system (26) in body (19) bottom.
5, according to right 1 described pumpingh well gas-tight anti-pollution process tubing string, the structure that it is characterized in that said environmental control system (26) is by environmental control system body (27) with at body (27) inner valve seat (29) and valve cover (31) with screwed connection, movably valve ball (30) is housed between valve seat (29) and valve cover (31), and environmental control system body (27) middle part has inlet opening (28) and upper and lower side has thread (32) to form.
6, according to right 1 described pumpingh well gas-tight anti-pollution process tubing string, the structure that it is characterized in that said flexible adjustable connector (9) is to be connected with screw thread with pressure cap (36) with lower contact (34) with body (33) by flexible adjustable connector body (33), O-ring seal (40) is equipped with in lower contact (34), in body (33), insert and regulate central tube (39), regulate that O-ring seal (40) is equipped with on central tube (39) bottom and top and on top with screwed connection oil pipe top connection (38), jump ring (35) and conical ring (37) composition is housed in pressure cap (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006210 CN2755279Y (en) | 2004-02-24 | 2004-02-24 | Gas-proof tubular column against pollution of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006210 CN2755279Y (en) | 2004-02-24 | 2004-02-24 | Gas-proof tubular column against pollution of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755279Y true CN2755279Y (en) | 2006-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006210 Expired - Fee Related CN2755279Y (en) | 2004-02-24 | 2004-02-24 | Gas-proof tubular column against pollution of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755279Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699902A (en) * | 2015-12-18 | 2018-10-23 | 治疗系统公司 | System and equipment in process of production detaching wellbore fluid and solid |
-
2004
- 2004-02-24 CN CN 200420006210 patent/CN2755279Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699902A (en) * | 2015-12-18 | 2018-10-23 | 治疗系统公司 | System and equipment in process of production detaching wellbore fluid and solid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |