CN202832408U - Submersible screw pump gas lift composite pip column for drainage gas recovery - Google Patents
Submersible screw pump gas lift composite pip column for drainage gas recovery Download PDFInfo
- Publication number
- CN202832408U CN202832408U CN 201220447182 CN201220447182U CN202832408U CN 202832408 U CN202832408 U CN 202832408U CN 201220447182 CN201220447182 CN 201220447182 CN 201220447182 U CN201220447182 U CN 201220447182U CN 202832408 U CN202832408 U CN 202832408U
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- China
- Prior art keywords
- screw pump
- submersible screw
- gaslift
- oil pipe
- automatic reversing
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Abstract
A submersible screw pump gas lift composite pipe column for drainage gas recovery is applied to underground gas recovery in oil and gas fields. A sieve pipe is arranged at the lowest end of the composite pipe column, the upper end of the sieve pipe is connected with a submersible screw pump, the upper end of the submersible screw pump is connected with an automatic reversing device through an oil pipe, the upper end of the automatic reversing device is connected with a gas lift device through an oil pipe, the upper end of the gas lift tool is connected with an oil pipe, the oil pipe is directly connected to a well opening, a cable is arranged in an annular space between a sleeve and the oil pipe, and the lower end of the cable is connected with a motor of the submersible screw pump. The submersible screw pump gas lift composite pipe column has the advantages of being capable of draining water for a well continuously before workover treatment and capable of continuously draining water for the wall under the situation when an original well pipe column is not moved.
Description
Technical field
The utility model relates to oil gas field production gas technology field, and particularly a kind of down-hole Combined Mining tracheae post is a kind of employed gaslift combined string with submersible screw pump when implementing water drainage-gas recovery technology.
Background technology
At present, in producing the aqueous vapor well, implement the submersible screw pump water drainage-gas recovery technology, can drag down by force flowing bottomhole pressure (FBHP), reach the purpose of pulling open producing pressure differential, getting rid of the shaft bottom hydrops, guarantee displacement and gas well is brought back to life.The submersible screw pump water drainage-gas recovery technology for well be gas reservoir catch pit and watered-out well.In case submersible screw pump can't be worked because of the down-hole fault, just need carry out workover treatment, otherwise can't continue to produce.Before well workover, during this period of time, because can't guarantee normal displacement, for the gas reservoir catch pit, will affect the production of contiguous well; For watered-out well, will affect this well and reproduce.Patent Office of the People's Republic of China discloses the utility model patent of a kind of " the full immersed type extracting device of oil of single screw oil submersible pump " by name; Notification number: 2081882.Its output shaft of submersible electric machine with oil that is loaded under the oil well is connected by the power transmission shaft of spline housing with the bevel gear planetary reduction gear; the shell wall of motor housing and reducer joins by detachable connector; the output shaft of reducer is connected with the power transmission shaft of motor protecter by spline housing; the reducer shell wall other end links to each other with protector outer casing by detachable connector; the motor protecter power transmission shaft other end is connected with the pump shaft of single screw oil submersible pump by spline housing; the connector of the protector outer casing other end and the pump housing is detachable connector; the oil-out of pump is connected with petroleum pipeline by screwed joint; petroleum pipeline is equipped with the box cupling that can add arbitrarily long oil pipeline; ball-and-seat and drainage valve also are housed on it; the other end of petroleum pipeline be loaded on ground oil; air separation connects, and submersible electric machine with oil is electrically connected with the city by downhole cable.The purpose that this device can be realized to a certain extent pulling open producing pressure differential, get rid of the shaft bottom hydrops guarantees displacement and gas well is brought back to life.Need carry out workover treatment but it still exists in the time of can't working because of the down-hole fault, otherwise can't continue to produce, before well workover during this period of time, because can't guarantee normal displacement, for the gas reservoir catch pit, can affect the production of contiguous well, for watered-out well, can affect the problem that this well reproduces.
The utility model content
The purpose of this utility model is: a kind of submersible screw pump gaslift combined string for water pumping gas production is provided, can continues before well workover well array water, reduction can't be worked because of submersible screw pump and has been with adverse effect.
The technical solution adopted in the utility model is: the submersible screw pump gaslift combined string that is used for water pumping gas production, comprise gaslift instrument, automatic reversing apparatus, submersible screw pump, downhole cable, screen casing and oil pipe, screen casing is positioned at combined string bottom, upper end at screen casing connects submersible screw pump, upper end at submersible screw pump connects automatic reversing apparatus by oil pipe, upper end at automatic reversing apparatus connects the gaslift instrument by oil pipe, upper end at the gaslift instrument is connected with oil pipe, and oil pipe is connected to well head always; Be lowered to cable by the annular space between sleeve pipe and the oil pipe, the lower end of cable connects the motor of submersible screw pump.Cable provides electric energy for submersible screw pump.Automatic reversing apparatus plays the effect of linking up or closing oil pipe and sleeve pipe UNICOM.Automatic reversing apparatus plays the effect of ball-and-seat and eduction valve.
The quantity of the oil pipe between automatic reversing apparatus and the submersible screw pump is 1～2.
Distance between gaslift instrument and the automatic reversing apparatus is between 80～120m.
Described automatic reversing apparatus is automatic diverter valve or sliding sleeve, and the gaslift instrument is gas-lift working barrel and gas lift valve.
Summary is used for the installation and use process of the submersible screw pump gaslift combined string of water pumping gas production.Consult Fig. 1.In entering well construction, screen casing 6 and submersible screw pump 3 are lowered at first, are followed successively by later on automatic reversing apparatus 2 and gaslift instrument 1.When submersible screw pump 3 normal operation, the pathway closure of ditch oil pipe and oil jacket annular space in the automatic reversing apparatus 2, upwards flowed along oil pipe 5 by the inner passage of automatic reversing apparatus 2 and through gaslift instrument 1 inner space by the fluid of submersible screw pump 3 liftings, finally reach ground, finish by the process of lifting.
When submersible screw pump 3 breaks down can't the lifting fluid time, motionless former well casing post is replaced by gaslift technique and continues to implement draining.After submersible screw pump 3 quit work, the passage of ditch oil pipe and oil jacket annular space was opened in the automatic reversing apparatus 2, just can by from oil pipe or sleeve pipe gas injection, as the gas injection passage, continue lifting fluid by gaslift with gaslift instrument 1.
When normal operation, submersible screw pump 3 is lifting liquid upwards, automatic reversing apparatus 2(automatic diverter valve) close the passage between oil pipe and sleeve pipe, liquid passes through automatic reversing apparatus 2 inner passages along oil pipe, and process gas-lift working barrel inner passage arrives ground upwards by lifting.When being out of order, unit can't move, the passage of the annular space between automatic reversing apparatus 2 ditch oil pipes and the sleeve pipe is opened, or the passage on the automatic reversing apparatus 2 opens by steel wire operation, when using the gaslift mode of production instead, can by to sleeve pipe or oil pipe gas injection, implement the gaslift draining.
The beneficial effects of the utility model: the utility model is used for the submersible screw pump gaslift combined string of water pumping gas production, compares with traditional single tubing string of latent oily submersible screw pump, can before workover treatment during this period of time, continue this well is implemented draining; Can in motionless former well casing post situation, continue this well is implemented draining.
Description of drawings
Fig. 1 is the submersible screw pump gaslift combined string structural representation that the utility model is used for water pumping gas production.
Among the figure, 1-gaslift instrument, 2-automatic reversing apparatus, 3-submersible screw pump, 4-downhole cable, 5-oil pipe, 6-screen casing.
The specific embodiment
Embodiment 1: take a submersible screw pump gaslift combined string that is used for water pumping gas production as example, the utility model is described in further detail.
Consult Fig. 1.The utility model is used for the submersible screw pump gaslift combined string of water pumping gas production, comprises gaslift instrument 1, automatic reversing apparatus 2, submersible screw pump 3, downhole cable 4, screen casing 6 and oil pipe 5.Described automatic reversing apparatus 2 is automatic diverter valves.Gaslift instrument 1 is gas-lift working barrel and gas lift valve.What oil pipe 5 adopted is the heavy wall tubing of 73mm.
Screen casing 6 is positioned at combined string bottom, screen casing 6 bottom degree of depth 2300m.Screen casing 6 length 20m.Upper end at screen casing 6 connects submersible screw pump 3, connects automatic reversing apparatus 2 in the upper end of submersible screw pump 3 by two oil pipes 5; Upper end at automatic reversing apparatus 2 connects gaslift instrument 1 by oil pipe 5, and the distance between gaslift instrument 1 and the automatic reversing apparatus 2 is 110m.Be connected with oil pipe 5 in the upper end of gaslift instrument 1, oil pipe 5 is connected to well head always; Be lowered to cable 4 by the annular space between sleeve pipe and the oil pipe, the lower end of cable 4 connects the motor of submersible screw pump 3.
Claims (4)
1. submersible screw pump gaslift combined string that is used for water pumping gas production, comprise gaslift instrument (1), automatic reversing apparatus (2), submersible screw pump (3), downhole cable (4), screen casing (6) and oil pipe (5), it is characterized in that: screen casing (6) is positioned at combined string bottom, upper end at screen casing (6) connects submersible screw pump (3), upper end at submersible screw pump (3) connects automatic reversing apparatus (2) by oil pipe (5), upper end at automatic reversing apparatus (2) connects gaslift instrument (1) by oil pipe (5), be connected with oil pipe (5) in the upper end of gaslift instrument (1), oil pipe (5) is connected to well head always; Be lowered to cable (4) by the annular space between sleeve pipe and the oil pipe, the lower end of cable (4) connects the motor of submersible screw pump (3).
2. the submersible screw pump gaslift combined string for water pumping gas production according to claim 1, it is characterized in that: the quantity of the oil pipe (5) between automatic reversing apparatus (2) and the submersible screw pump (3) is 1～2.
3. the submersible screw pump gaslift combined string for water pumping gas production according to claim 1, it is characterized in that: the distance between gaslift instrument (1) and the automatic reversing apparatus (2) is between 80～120m.
4. the submersible screw pump gaslift combined string for water pumping gas production according to claim 1, it is characterized in that: described automatic reversing apparatus (2) is automatic diverter valve or sliding sleeve, gaslift instrument (1) is gas-lift working barrel and gas lift valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447182 CN202832408U (en) | 2012-09-04 | 2012-09-04 | Submersible screw pump gas lift composite pip column for drainage gas recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447182 CN202832408U (en) | 2012-09-04 | 2012-09-04 | Submersible screw pump gas lift composite pip column for drainage gas recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832408U true CN202832408U (en) | 2013-03-27 |
Family
ID=47944140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447182 Expired - Fee Related CN202832408U (en) | 2012-09-04 | 2012-09-04 | Submersible screw pump gas lift composite pip column for drainage gas recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832408U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361006A (en) * | 2018-03-09 | 2018-08-03 | 中国石油大学(华东) | A kind of water drainage-gas recovery technology method using preset pneumatic type tubing string |
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
| CN113833433A (en) * | 2021-09-22 | 2021-12-24 | 中煤科工集团西安研究院有限公司 | Flow-restraining intermittent communication device and method for screw pump of coal-bed gas well |
| CN116357274A (en) * | 2023-06-01 | 2023-06-30 | 北京万普瑞能源技术有限公司 | Natural gas well rodless pump and foam drainage gas production composite process |
-
2012
- 2012-09-04 CN CN 201220447182 patent/CN202832408U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361006A (en) * | 2018-03-09 | 2018-08-03 | 中国石油大学(华东) | A kind of water drainage-gas recovery technology method using preset pneumatic type tubing string |
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
| CN113833433A (en) * | 2021-09-22 | 2021-12-24 | 中煤科工集团西安研究院有限公司 | Flow-restraining intermittent communication device and method for screw pump of coal-bed gas well |
| CN116357274A (en) * | 2023-06-01 | 2023-06-30 | 北京万普瑞能源技术有限公司 | Natural gas well rodless pump and foam drainage gas production composite process |
| CN116357274B (en) * | 2023-06-01 | 2023-08-08 | 北京万普瑞能源技术有限公司 | Natural gas well rodless pump and foam drainage gas production composite process |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210904 |