CN1648406A - Ground injecting gas boosting oil production and liquid discharging gas producing device and method - Google Patents
Ground injecting gas boosting oil production and liquid discharging gas producing device and method Download PDFInfo
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- CN1648406A CN1648406A CN 200410081590 CN200410081590A CN1648406A CN 1648406 A CN1648406 A CN 1648406A CN 200410081590 CN200410081590 CN 200410081590 CN 200410081590 A CN200410081590 A CN 200410081590A CN 1648406 A CN1648406 A CN 1648406A
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Abstract
The present invention relates to oil and gas extracting apparatus and method suitable for deep well and super deep well, and aims at raising the hydrocarbon reservoir yield via lowering the pressure in bottom of gas lift well and solving the artificial lift problem of various kinds of well. The technological scheme of the present invention includes: injecting high pressure air via ground pipe and oil jacket to pneumatic motors in well gas booster pump to drive motor pistons and pump pistons; pumping out well liquid via the opened sucking valve, pump barrel and opened draining valve; and exhausting the mixture of exhaust air and pumped well liquid via oil pipe to well head output pipe. The present invention has the advantages of both gas lift and staff pump, can lower the bottom pressure to level lower than gas lift, and is especially suitable for the artificial lift of low pressure low potential oil/gas well, deep well and super deep well.
Description
Technical field
The present invention relates to a kind of oil recovery of deep-well, ultradeep well and device and method of liquid discharging gas producing of being specially adapted to, belong to oil and natural gas extraction field.
Background technology
In recover petroleum and natural gas process, when the stratum energy was sufficient, the oil gas well can adopt the blowing mode to produce; When the stratum energy reduces and moisture content rises when being not enough to keep blowing production, need makeup energy to transfer the artificial lift mode to and exploit.Artificial lift mode commonly used has: sucker rod pump, gaslift, electric submersible pump, hydraulic piston pump, hydraulic jet pump, gas jetpump, waterpower air driven pump, foam discharge opeing etc.Domestic and international many oil gas fields have entered the exploitation middle and later periods at present, with the landing surface production capacity constantly reduce, moisture rising and other complex situations, the exploitation difficulty and the cost of production of oil and natural gas constantly increase, production efficiency constantly reduces, and an urgent demand oil recovery and gas producing technology technology develop to many kinds, energy-efficient direction.Sucker rod pump is a present domestic and international application mechanical oil recovery method the most widely, and the most wells of each elephant of China adopt sucker rod pump, but are used for deep-well and ultradeep well owing to sucker rod has limited sucker rod pump.Continuous gas lift has that production fluid quantitative change scope is big, the lifting degree of depth dark, the down-hole does not have advantages such as mechanical wear-out part, convenient operation and management, especially be adapted to gas liquid ratio, the oil gas well serious, that contain complex conditions such as Korrosionsmedium, deep-well and directional well that shakes out, gaslift has more advantage than other mechanical oil production model.China has begun to take shape certain gaslift production scale.Because continuous gas lift is only applicable to the oil well condition that the stratum production capacity is higher and energy is sufficient, reduction gradually along with the moisture rising of China's oil gas field, stratum energy and stratum production capacity, the gas injection pressure and the gas injection rate of oil well and water pumping gas production well constantly increase, and gas lift efficiency decreases.Under former gas supply capacity condition, gas-lift well well number reduces just gradually.Therefore, seek and explore new artificial lift technology, start with from new thinking, study new artificial lift device, form new commercial Application product, the engineering design method of research new technology, diagnosis, monitoring and control method, form a series of supporting technologies, become the active demand of China even external oil-gas field development later stage raising recovery ratio.
Adopt the artificial lift technology of fluid pressure transmission to comprise liquids and gases two big classes, adopt hydraulicdriven have hydraulic piston pump, water jet pump at present; Adopt air-driven have chamber gaslift, waterpower air driven pump, gas jetpump.
The U.S. in 1932 uses hydraulic piston pump and recovers the oil, and promote the use of the fifties, and the former Soviet Union began to use hydraulic piston pump in 1974 recovers the oil, and China's Shengli Oil Field in 1967 begins to use hydraulic piston and recovers the oil.Hydraulic piston pump by the ground kinetic pump with the power fluid supercharging after oil pipe or designated lane pump into the down-hole, CD-ROM drive motor is done and is pumped, help the oil pumping of down-hole plunger displacement pump, hydraulic piston pump to high oil-gas ratio, shake out, highly coagulate oil, the content of wax, viscous crude, deep-well, inclined shaft, reach horizontal well and have stronger compliance.
Camp and Winkler in 1956 proposes to increase chamber and improves gas lift efficiency in gas-lift well.This is a kind of special intermittent gaslift---chamber gaslift, utilization reduces liquid level than the big a lot of chamber of oil pipe area, thereby reduction bottom pressure, formation fluid is full of chamber by the standing valve of cavity bottom during work, ground is injected gas and is entered chamber by the oil jacket annular space, forces down liquid level in the chamber, makes liquid enter oil pipe from the eyelet on the insertion tube that stretches into cavity bottom, after liquid all is pressed into oil pipe, inject the liquid slug that gas also enters its top of oil pipe lifting.This device is applicable to low pressure, stripper well, bottom pressure can be reduced near pit shaft gas column pressure.DeMoss improved this technology afterwards, had solved gaslift stage stratum liquid and can not enter the influence to chamber efficient of chamber and stratum gas.
C.R.Ca-nalizo had introduced a kind of air pump in " elevate a turnable ladder method oil production technology " volume two (descending) chapter 8 in 1980, and U.S. M.Amani had invented a kind of waterpower air driven pump in 1994, and all some is similar for these two kinds of devices and chamber gaslift.The air pump that Canalizo introduces has separator piston between well liquid and the injection gas in pump barrel, inject gas and inject the down-hole pump barrel from a designated lane, promote piston, the liquid of the piston other end in the pump barrel is discharged from oil pipe, after injection gas all is discharged to oil pipe with liquid, the gas blow off valve is opened, and gas is discharged from the oil jacket annular space in the pump barrel.When the waterpower air driven pump of M.Amani is worked, inject gas and inject the down-hole pump barrel from a designated lane, force down liquid level in the pump barrel, extruding liquid discharges from the oil jacket annular space, after injection gas all is pressed into the oil jacket annular space with liquid, open valve between pump barrel and oil pipe by ground controller, injecting gas is discharged from oil pipe.
The operating principle of the gas boosting pump installation that the present invention proposes is compared with hydraulic piston pump and is improved a lot, and hydraulic piston pump is to adopt ground to inject the power that liquid makes to drive down-hole motor; The gas boosting pump utilizes ground to inject a plurality of air motors drive pump piston motion that gas promotes the mine gas booster pump, and liquid in the pump barrel is discharged well head.This technology not only has the advantage of gaslift but also have the advantage of sucker rod pump.The difference of gas boosting pump installation and waterpower air driven pump and chamber gaslift is, the injection gas of waterpower air driven pump and chamber gaslift act directly on the pump barrel liquid level or liquid and injection air bound from piston on, and the gas that promotes the gas boosting pump work is to act on a plurality of air motors, the gas injection pressure that the waterpower air driven pump needs must be greater than the well depth head of liquid, and the gas boosting pump is to utilize low pressure gas that well liquid is pressurized to the discharge pressure that needs or more than the well depth head of liquid.
Summary of the invention
The objective of the invention is to: overcome the deficiencies in the prior art, to improve the oil-gas reservoir recovery ratio is target, the bottom pressure of gas-lift well is dropped to lower level, help solving the artificial lift problem of low-voltage and low-yield energy oil gas well, deep-well and ultradeep well, special a kind of ground injecting gas boosting oil production and liquid discharging gas producing device and the method for proposing.
In order to achieve the above object, the present invention is by the following technical solutions: ground injecting gas boosting oil production and liquid discharging gas producing device are made up of high-pressure air source, ground injecting gas pipe, well head, sleeve pipe, oil pipe, packer, gas boosting pump, extraction pipe, it is characterized in that: high-pressure air source such as high-pressure gas well or compressor link to each other with well head by the ground injecting gas pipe, and air injection pipe can be oil pipe or tubing and casing annular space; Sleeve pipe extends to the shaft bottom from well head, and oil pipe is arranged in sleeve pipe, and tubing and casing links to each other with production tree at well head, and down-hole oil tube has packer that tubing and casing annular space and shaft bottom and oil pipe are separated; The gas boosting pump is installed in the oil pipe bottom, and the injection gas in the tubing and casing annular space can enter the power gas inlet of pump motor, and the pump end communicates with the shaft bottom; The extraction pipe is positioned at well head, and an end is connected with the well head oil pipe, and the other end links to each other with the surface gathering and transferring pipe.
The employed gas boosting pump of ground injecting gas boosting oil production and liquid discharging gas producing device, it is a cylinder, be made up of a plurality of motors and pump, motor is made up of motor cylinder, motor valve, motor piston, motor drive shaft, power gas access road, motor blow off valve, motor passing away; Pump is made up of pump barrel, pump piston, pump shaft, pump suction passage, pump inlet valve, pump passing away, pump outlet valve.It is characterized in that: motor is positioned at the top of pump, and motor links to each other by connecting axle with pump, and described connecting axle passes the circular seal body center that isolates motor and pump, connects pump shaft and motor drive shaft, and forms sealing between motor cylinder and pump barrel; Motor piston is arranged in the motor cylinder, be used for the motor cylinder is separated into piston two chambers up and down, a chamber in the described chamber is as actuating cylinder, and another chamber is as weary cylinder, the motor piston center connects motor drive shaft, links to each other by motor drive shaft between a plurality of motors; Pump piston is arranged in pump barrel, is used for pump barrel is separated into piston two chambers up and down, and a chamber in the described chamber is as the imbibition chamber, and another chamber is as the discharge opeing chamber, and the pump piston center connects pump shaft.
Method of the present invention, its course of work is: high-pressure air source enters the oil jacket annular space by certain gas injection pressure and gas injection rate by the ground injecting gas pipe, arrives mine gas booster pump power gas inlet.Motor valve is the reversal valve of power gas, when motor valve is in when upper, the power gas that promotes the motor motion enters each actuating cylinder of motor, promotes motor piston and moves upward at (weary cylinder one end), and the weary gas of described weary cylinder is discharged by the motor blow off valve through weary gas passing away; Motor piston moves through a drive pump piston to described discharge opeing chamber one end motion, the pump inlet valve of described imbibition chamber is opened, well liquid is inhaled into described imbibition chamber from the pump suction passage, and the well liquid in the described discharge opeing chamber is discharged by the pump passing away by the pump outlet valve of opening.The weary gas that motor is discharged mixes with the well liquid of pump discharge and is discharged to oil pipe, and fluid-mixing is discharged to well head extraction pipe in gas-liquid multiphase pipe flow mode from oil pipe.
When motor piston arrives the cylinder upper end, the needle of motor piston bump motor valve outlet valve, the motor valve outlet valve is opened, the high voltage power gas of motor valve lower chamber enters weary gas passing away from the motor valve outlet valve, motor valve upper surface power gas active force is greater than the active force of the weary gas in lower surface, motor valve move downward and be in the next, the effect exchange of weary cylinder and actuating cylinder, the motor piston motion commutates; The driven strength inlet of power gas enters each actuating cylinder of motor, promotes motor piston and moves downward, and the weary gas in the described weary cylinder is discharged by the motor blow off valve through weary gas passing away; When motor piston arrives the cylinder lower end, the needle of motor piston bump motor valve admission valve, the motor valve INO, high voltage power gas enters the motor valve lower chamber from the motor valve admission valve, the area of motor valve lower surface is greater than the upper surface, motor valve lower surface power gas active force is greater than the active force of upper surface, and motor valve moves upward and is in upper.The reciprocation cycle motion of motor is finished in so circulation, and the motion of motor piston reciprocation cycle drives the motion of pump piston reciprocation cycle, and the effect exchange of imbibition chamber and discharge opeing chamber is recovered the oil and liquid discharging gas producing thereby finish.
When stratum gas is big to the effectiveness affects of pump, should adopt the down-hole gas anchor, and stack is installed, the isolated gas in down-hole directly is discharged to ground.Oil pipe also can be made air injection pipe, and at this moment the oil jacket annular space is made fluid-mixing extraction pipe.
Compared with prior art, the present invention has following beneficial effect: the advantage of (1) existing gaslift, the advantage of sucker rod pump is arranged again, and bottom pressure can be dropped to the level lower than gaslift, can oil gas well condition have stronger applicability to low-voltage and low-yield; (2) do not need sucker rod and special down-hole and ground link, be specially adapted to the artificial lift technology of deep-well and ultradeep well; (3) can adopt steel wire or air pressure circulation pulling operation, convenient operation and management.
Description of drawings
Fig. 1 is the structural representation of ground injecting gas boosting oil production of the present invention and liquid discharging gas producing device.Among the figure: 1. extraction pipe, 2. ground injecting gas pipe 3 oil pipes, 4. sleeve pipe, 5. packer, 6. gas boosting pump, 7. payzone.
Fig. 2 is the structural representation of gas boosting pump installation of the present invention.Among the figure: 1. motor blow off valve, 2. power gas passage, the 3. pump housing, 4. weary gas passing away, 5. motor valve, 6. motor valve outlet valve, 7. motor piston, 8. motor drive shaft, 9. passage, 10. pump passing away, 11. pump pistons, 12. pump outlet valves, 13. pump inlet valve, 14. pump suction passages, 15. motor valve admission valves, 16. passage, 17. power gas inlet
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing.
Claims (4)
1. a ground injecting gas boosting oil production and liquid discharging gas producing device and method is characterized in that high-pressure air source such as high-pressure gas well or compressor link to each other with well head by the ground injecting gas pipe, and air injection pipe can be oil pipe or tubing and casing annular space; Sleeve pipe extends to the shaft bottom from well head, and oil pipe is arranged in sleeve pipe, and casing tube links to each other with production tree at well head, and down-hole oil tube has packer that tubing and casing annular space and shaft bottom and oil pipe are separated; The gas boosting pump is installed in the oil pipe bottom, and the injection gas in the tubing and casing annular space can enter the power gas inlet of pump motor, and the pump end is with also the end communicates; The extraction pipe is positioned at well head, and an end is connected with the well head oil pipe, and the other end links to each other with the surface gathering and transferring pipe.
2. device and method according to claim 1 is characterized in that: employed gas boosting pump is a cylinder, is made up of a plurality of motors and pump; Motor is positioned at the top of pump, and motor links to each other by connecting axle with pump, and described connecting axle passes the circular seal body center that isolates motor and pump, connects pump shaft and motor drive shaft, and forms sealing between motor cylinder and pump barrel; Motor piston is arranged in the motor cylinder, and the motor cylinder is separated into up and down two chambers, chamber cylinder that is used as power, and another chamber is made weary cylinder, and the motor piston center connects motor drive shaft, links to each other by motor drive shaft between a plurality of motors; Pump piston is arranged in pump barrel, and pump barrel is separated into piston two chambers up and down, and a chamber is made the imbibition chamber, and another chamber is made the discharge opeing chamber, and the pump piston center connects pump shaft.
3. device and method according to claim 1, it is characterized in that: high-pressure air source arrives well head by the ground injecting gas pipe, injects the oil jacket annular space, enters mine gas booster pump power gas inlet, high pressure gas charges into an end of a plurality of air motors of booster pump, promotes the motor piston motion; The motor piston motion drives the pump piston motion, and pump inlet valve is opened, and well liquid enters the pump barrel suction side, and pump outlet valve is opened simultaneously, and well hydraulic pressure is gone into pump discharge; The weary gas that motor is discharged mixes with the well liquid of pump discharge and is discharged to oil pipe, and fluid-mixing is discharged to well head extraction pipe in gas-liquid multiphase pipe flow mode from oil pipe.
4. device and method according to claim 1 is characterized in that: when stratum gas is big to the effectiveness affects of pump, should adopts the down-hole gas anchor, and stack is installed, the isolated gas in down-hole directly is discharged to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200410081590 CN1648406A (en) | 2004-12-22 | 2004-12-22 | Ground injecting gas boosting oil production and liquid discharging gas producing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410081590 CN1648406A (en) | 2004-12-22 | 2004-12-22 | Ground injecting gas boosting oil production and liquid discharging gas producing device and method |
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| CN 200410081590 Pending CN1648406A (en) | 2004-12-22 | 2004-12-22 | Ground injecting gas boosting oil production and liquid discharging gas producing device and method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817594A (en) * | 2012-09-06 | 2012-12-12 | 中国石油化工股份有限公司 | Drainage gas recovery method and device of horizontal well |
| CN101842546B (en) * | 2007-08-03 | 2014-04-09 | 松树气体有限责任公司 | Flow control system having isolation device for preventing gas interference during downhole liquid removal operations |
| CN105283630A (en) * | 2013-06-26 | 2016-01-27 | 韦尔泰克有限公司 | A gas lift system and a gas lift method |
| CN105604876A (en) * | 2016-02-04 | 2016-05-25 | 本钢板材股份有限公司 | Mine blast hole drainage facility |
| CN106401925A (en) * | 2016-12-12 | 2017-02-15 | 廖嘉炜 | Downhole gas-liquid transduction booster pump |
| CN106401580A (en) * | 2016-11-28 | 2017-02-15 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat-source lifting shaft |
| CN107532470A (en) * | 2015-04-01 | 2018-01-02 | 沙特阿拉伯石油公司 | Fluid for oil gas application drives hybrid system |
| CN108343408A (en) * | 2017-01-24 | 2018-07-31 | 中国石油天然气股份有限公司 | Water drive gas reservoir recovery method |
| CN110761746A (en) * | 2019-11-21 | 2020-02-07 | 西安德林石油工程有限公司 | Gas well liquid drainage method and device |
| CN111535783A (en) * | 2020-04-17 | 2020-08-14 | 四川轻化工大学 | Negative pressure suction and gas lift combined action pump for double-layer pipe |
| CN112031712A (en) * | 2020-09-08 | 2020-12-04 | 长江大学 | Underground gas drive drainage and production pump and gas drive drainage and production method |
| CN112253060A (en) * | 2020-10-19 | 2021-01-22 | 中建四局土木工程有限公司 | Gap gas lift liquid drainage gas production control method and system |
| CN112343549A (en) * | 2020-09-22 | 2021-02-09 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pneumatic screw pump mixed-flooding oil production process pipe column |
| CN113356798A (en) * | 2021-06-03 | 2021-09-07 | 德仕能源科技集团股份有限公司 | Pneumatic pump gas lift oil production method |
| CN113944451A (en) * | 2020-07-15 | 2022-01-18 | 中国石油化工股份有限公司 | Pneumatic rodless liquid drainage lifting pipe column and method for gas drive production well |
| CN113982545A (en) * | 2021-09-28 | 2022-01-28 | 普斐特油气工程(江苏)股份有限公司 | Safety lifting high-temperature gas injection valve for oil well |
| WO2022052963A1 (en) * | 2020-09-10 | 2022-03-17 | 贺信 | Multi-plunger cooperative gas-lift liquid drainage system and liquid drainage method |
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2004
- 2004-12-22 CN CN 200410081590 patent/CN1648406A/en active Pending
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| CN101842546B (en) * | 2007-08-03 | 2014-04-09 | 松树气体有限责任公司 | Flow control system having isolation device for preventing gas interference during downhole liquid removal operations |
| CN102817594B (en) * | 2012-09-06 | 2015-08-26 | 中国石油化工股份有限公司 | Horizontal well water pumping gas production method and device |
| CN102817594A (en) * | 2012-09-06 | 2012-12-12 | 中国石油化工股份有限公司 | Drainage gas recovery method and device of horizontal well |
| CN105283630A (en) * | 2013-06-26 | 2016-01-27 | 韦尔泰克有限公司 | A gas lift system and a gas lift method |
| CN107532470A (en) * | 2015-04-01 | 2018-01-02 | 沙特阿拉伯石油公司 | Fluid for oil gas application drives hybrid system |
| CN107532470B (en) * | 2015-04-01 | 2019-10-18 | 沙特阿拉伯石油公司 | Fluid for oil gas application drives hybrid system |
| CN105604876A (en) * | 2016-02-04 | 2016-05-25 | 本钢板材股份有限公司 | Mine blast hole drainage facility |
| CN105604876B (en) * | 2016-02-04 | 2018-03-23 | 本钢板材股份有限公司 | A kind of mine drainage of explosive hole equipment |
| CN106401580A (en) * | 2016-11-28 | 2017-02-15 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat-source lifting shaft |
| CN106401580B (en) * | 2016-11-28 | 2023-07-18 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat source lifting shaft |
| CN106401925B (en) * | 2016-12-12 | 2017-10-17 | 廖嘉炜 | A kind of underground gas-liquid transducing booster pump |
| CN106401925A (en) * | 2016-12-12 | 2017-02-15 | 廖嘉炜 | Downhole gas-liquid transduction booster pump |
| CN108343408A (en) * | 2017-01-24 | 2018-07-31 | 中国石油天然气股份有限公司 | Water drive gas reservoir recovery method |
| CN110761746A (en) * | 2019-11-21 | 2020-02-07 | 西安德林石油工程有限公司 | Gas well liquid drainage method and device |
| CN110761746B (en) * | 2019-11-21 | 2023-08-11 | 西安德林石油工程有限公司 | Gas well liquid draining method and device |
| CN111535783A (en) * | 2020-04-17 | 2020-08-14 | 四川轻化工大学 | Negative pressure suction and gas lift combined action pump for double-layer pipe |
| CN111535783B (en) * | 2020-04-17 | 2022-03-08 | 四川轻化工大学 | Negative pressure suction and gas lift combined action pump for double-layer pipe |
| CN113944451B (en) * | 2020-07-15 | 2024-03-01 | 中国石油化工股份有限公司 | Pneumatic rodless liquid discharge lifting pipe column and method for pneumatic production well |
| CN113944451A (en) * | 2020-07-15 | 2022-01-18 | 中国石油化工股份有限公司 | Pneumatic rodless liquid drainage lifting pipe column and method for gas drive production well |
| CN112031712A (en) * | 2020-09-08 | 2020-12-04 | 长江大学 | Underground gas drive drainage and production pump and gas drive drainage and production method |
| CN112031712B (en) * | 2020-09-08 | 2023-01-17 | 长江大学 | Underground gas drive drainage and production pump and gas drive drainage and production method |
| WO2022052963A1 (en) * | 2020-09-10 | 2022-03-17 | 贺信 | Multi-plunger cooperative gas-lift liquid drainage system and liquid drainage method |
| CN112343549A (en) * | 2020-09-22 | 2021-02-09 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pneumatic screw pump mixed-flooding oil production process pipe column |
| CN112343549B (en) * | 2020-09-22 | 2024-03-15 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pneumatic screw pump mixed flooding oil extraction process tubular column |
| CN112253060B (en) * | 2020-10-19 | 2023-12-29 | 中建四局土木工程有限公司 | Intermittent gas lift liquid drainage gas production control method and system |
| CN112253060A (en) * | 2020-10-19 | 2021-01-22 | 中建四局土木工程有限公司 | Gap gas lift liquid drainage gas production control method and system |
| CN113356798B (en) * | 2021-06-03 | 2023-05-12 | 德仕能源科技集团股份有限公司 | Pneumatic pump gas lift oil extraction method |
| CN113356798A (en) * | 2021-06-03 | 2021-09-07 | 德仕能源科技集团股份有限公司 | Pneumatic pump gas lift oil production method |
| CN113982545A (en) * | 2021-09-28 | 2022-01-28 | 普斐特油气工程(江苏)股份有限公司 | Safety lifting high-temperature gas injection valve for oil well |
| CN113982545B (en) * | 2021-09-28 | 2023-07-28 | 普斐特油气工程(江苏)股份有限公司 | Safety lifting Wen Zhuqi valve for oil well |
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