CN104594858B - Oil-gas field negative-pressure exploiting device and method - Google Patents
Oil-gas field negative-pressure exploiting device and method Download PDFInfo
- Publication number
- CN104594858B CN104594858B CN201410694104.7A CN201410694104A CN104594858B CN 104594858 B CN104594858 B CN 104594858B CN 201410694104 A CN201410694104 A CN 201410694104A CN 104594858 B CN104594858 B CN 104594858B
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- Prior art keywords
- valve
- cylinder body
- pump
- negative pressure
- piston
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Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000005213 imbibition Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides an oil-gas field negative-pressure exploiting device and method and relates to an oil-gas field downhole fluid exploiting technology. The oil-gas field negative-pressure exploiting device comprises a downhole combined pipe column and a ground negative pressure device. An exhaust portion of the combined pipe column is connected with a pumping-in pipe. The pumping-in pipe is connected with a pumping-in valve. The pumping-in valve is fixed to the bottom of a cylinder body. The upper portion of the cylinder body is fixedly provided with a pumping-out valve. The pumping-out valve is connected with a pumping-out pipe. An electromagnetic valve is connected to the inner side of the bottom of the cylinder body. The body of the main ground negative pressure device is the cylinder body. The main body of the cylinder body is a piston inner cavity. A main piston and an auxiliary piston are arranged in the middle portion of the cylinder body. The main piston and the auxiliary piston are of an integrated structure. A sealing cylinder is installed in the cylinder body. One end of a hydraulic inlet pipe is connected to the pump body, the other end of the hydraulic inlet pipe is connected with a liquid storage tank, and a hydraulic pump is installed in the middle of the hydraulic inlet pipe. The liquid storage tank is connected with a hydraulic return pipe.
Description
Technical field：The present invention relates to a kind of oil gas field downhole fluid production technique, especially a kind of oil gas field negative pressure are opened
Device for picking and recovery method.
Background technology：At present, in oil gas field downhole fluid recovery process, mainly ground energy transmission is set to down-hole
It is standby, carry out fluid exploitation.These equipment mainly have electric submersible pump, sucker rod pump, screw pump, hydraulic pump and airlift unit etc., and these set
It is standby all exist that operation process is complicated when using, be difficult maintenance, the shortcomings of production cost is high.
The content of the invention：It is an object of the invention to provide simplifying a kind of oil gas field negative pressure quarrying apparatus and the exploitation of operation process
Method, it includes a set of down-hole combined string and negative pressure on ground device, and combined string can couple screen casing, single-stage according to down-hole situation
Or multistage standing valve and earial drainage device.The object of the present invention is achieved like this：It is that have shaft sleeve below in wellhead assembly
Pipe, combined string is hung on wellhead assembly, and combined string outlet part is connected with pump inlet pipe；Install successively on combined string
There are screen casing, standing valve and earial drainage device；Under wellbore casing in stratum；Two pumps are connected on pump inlet pipe and enter valve, pump enters valve
Cylinder base is fixed on, cylinder body top is fixed with two and pumps out valve, and pump-out pipe is connected on valve is pumped out；The connection of cylinder base inner side
Two electromagnetic valves；Negative pressure on ground apparatus main body be cylinder body, cylinder body body be piston cavity, built-in main piston and pair in the middle of cylinder body
Piston, main piston and auxiliary piston are integral type structure；Two sealing drums are installed in cylinder body；One end of hydraulic pressure inlet pipe is connected to
On cylinder body, the other end of hydraulic pressure inlet pipe is connected with liquid storage tank, and is installed with hydraulic pump in centre；Liquid is connected on liquid storage tank
Push back pipe.
The recovery method of the present invention is to pass through combined string winding shaft using the negative pressure of vacuum produced by negative pressure on ground device
Fluid in jacket casing pipe to ground, combined string are provided with standing valve and prevent fluid reflux, while being easy to the shape of negative pressure of vacuum
Into beneficial to fluid output；Hydraulic oil in oil storage pool is squeezed into hydraulic pressure inlet pipe by negative pressure on ground device by ground hydraulic pump, first
The electromagnetic valve on the left side is opened, the cavity that electromagnetic valve of the hydraulic oil through the left side is entered between the main piston left side and cylinder body, in cavity
Supercharging, main piston is moved to right, and drives auxiliary piston to move to right, and auxiliary piston concedes space with the sealing drum on the left side, and now the pump on the left side enters valve
Open, the valve that pumps out on the left side is closed, and produces negative pressure, wellbore fluids suction；Simultaneously the electromagnetic valve on the right is opened, and hydraulic oil is back to
Liquid storage tank；When auxiliary piston is moved to right, auxiliary piston diminishes with the space of the sealing drum on the right, and the pump on the right enters valve closing, the pump on the right
Go out valve opening, produce malleation, fluid is discharged；After left chamber imbibition terminates, the electromagnetic valve on the right is opened, electricity of the hydraulic oil through the right
The cavity that magnet valve is entered between main piston the right and cylinder body, supercharging in cavity, main piston is moved to left, and drives auxiliary piston to move to left, and pair is living
Plug concedes space with the sealing drum on the right, and now the pump on the right enters valve opening, the valve that pumps out on the right is closed, and produces negative pressure, pit shaft
Fluid is sucked；Simultaneously the electromagnetic valve on the left side is opened, and hydraulic oil is back to liquid storage tank；When auxiliary piston is moved to left, auxiliary piston and the left side
The space of sealing drum diminishes, and the pump on the left side enters that valve is closed, the left side pumps out valve opening, produces malleation, and fluid discharges；By left and right
The unlatching successively of two electromagnetic valves, close, hydraulic oil constantly commutates, and promotes main piston to move left and right, drive auxiliary piston to concede and
Space is reduced, liquid suction is completed and is discharged, do action produces negative pressure, is drawn to ground by the combined tubing string of shaft sleeve tube fluid
Face, completes fluid from wellbore casing to the output process on ground.
Meaning of the present invention is：Present invention focuses on entering a set of combined string under in the down-hole casing, tubing string is provided with
Multistage standing valve, multistage separation tubing string inner chamber is easy to negative pressure to be formed.Negative pressure on ground quarrying apparatus are relied on simultaneously by down-hole casing
The combined tubing string of interior fluid is drawn to ground, and quarrying apparatus are placed in the mode of production of down-hole when changing current oil-gas mining, can
Simplify operation process, reduce production cost.
The present invention can be used for the negative pressure of the oil gas field underground fluid such as exhaustion oil gas field, coal bed gas, gas condensate field, shale gas and open
Adopt.It is primarily adapted for use in the underground fluid exploitation that viscosity is low, mobility is strong.
Negative pressure on ground device can realize that the present invention is exemplified as hydraulic drive post by type of pump such as oil-gas mixed delivery pump, hydraulic pumps
Plug pump, produces negative pressure and completes production.
Description of the drawings：Fig. 1 is a kind of structural representation of oil gas field negative pressure quarrying apparatus, 1, wellhead assembly 2, well in figure
Jacket casing pipe 3, combined string 4, earial drainage device 5, standing valve 6, screen casing 7, stratum 8, pump inlet pipe 9, pump enter valve 10, pair and live
Plug 11, sealing drum 12, pump out valve 13, electromagnetic valve 14, main piston 15, cylinder body 16, hydraulic pressure inlet pipe 17, pump-out pipe 18,
Hydraulic pressure return pipe 19, hydraulic pump 20, liquid storage tank.
Fig. 2 is a kind of recovery method schematic diagram of oil gas field negative pressure quarrying apparatus.
Specific embodiment：Embodiment 1, the present invention have below wellbore casing 2 in wellhead assembly 1, and combined string 3 hangs
On wellhead assembly 1, the outlet part of combined string 3 is connected with pump inlet pipe 8；Screen casing 6 is sequentially installed with combined string 3, is consolidated
Determine valve 5 and earial drainage device 4；Under wellbore casing 2 in stratum 7；Two pumps are connected on pump inlet pipe 8 and enter valve 9, pump enters valve 9 and consolidates
Due to the bottom of cylinder body 15, the top of cylinder body 15 is fixed with two and pumps out valve 12, and pump-out pipe 17 is connected on valve 12 is pumped out；The bottom of cylinder body 15
Two electromagnetic valves 13 of portion inner side connection；Negative pressure on ground apparatus main body is cylinder body 15, and the body of cylinder body 15 is piston cavity, in cylinder body 15
Middle built-in main piston 14 and auxiliary piston 10, main piston 14 and auxiliary piston 10 are integral type structure；Two are installed with cylinder body 15
Individual sealing drum 11；One end of hydraulic pressure inlet pipe 16 is connected on cylinder body 15, and the other end of hydraulic pressure inlet pipe 16 is connected with liquid storage tank 20,
And hydraulic pump 19 is installed in centre；Hydraulic pressure return pipe 18 is connected on liquid storage tank 20.
Embodiment 2, using the negative pressure of vacuum produced by negative pressure on ground device by combined string lifted wellbore casing in
Fluid to ground, combined string are provided with standing valve and prevent fluid reflux, while it is easy to the formation of negative pressure of vacuum, beneficial to fluid
Output；Hydraulic oil in oil storage pool is squeezed into hydraulic pressure inlet pipe, the first electromagnetism on the left side by negative pressure on ground device by ground hydraulic pump
Valve 13 is opened, the cavity that electromagnetic valve 13 of the hydraulic oil through the left side is entered between the left side of main piston 14 and cylinder body 15, is increased in cavity
Pressure, main piston 14 is moved to right, and drives auxiliary piston 10 to move to right, and auxiliary piston 10 concedes space with the sealing drum on the left side, now the pump on the left side
Enter that valve 9 is opened, the valve 12 that pumps out on the left side is closed, produce negative pressure, wellbore fluids suction；Simultaneously the electromagnetic valve on the right is opened, hydraulic pressure
Oil is back to liquid storage tank 20；When auxiliary piston 10 is moved to right, auxiliary piston 10 diminishes with the space of the sealing drum on the right, and the pump on the right enters valve
Close, the valve that pumps out on the right is opened, and produces malleation, fluid is discharged；After left chamber imbibition terminates, the electromagnetic valve on the right is opened, hydraulic pressure
The cavity that oil is entered between the right of main piston 14 and cylinder body 15 through the electromagnetic valve on the right, supercharging in cavity, main piston 14 is moved to left,
Auxiliary piston 10 is driven to move to left, auxiliary piston 10 concedes space with the sealing drum on the right, now the pump on the right enters valve opening, the pump on the right
Go out valve closing, produce negative pressure, wellbore fluids suction；Simultaneously the electromagnetic valve 13 on the left side is opened, and hydraulic oil is back to liquid storage tank 20；It is secondary
When piston 10 is moved to left, auxiliary piston 10 diminishes with the space of the sealing drum 11 on the left side, and the pump on the left side enters that valve 9 is closed, the left side pumps out
Valve 12 is opened, and produces malleation, and fluid is discharged；By the unlatching successively of two electromagnetic valves 13 in left and right, close, hydraulic oil is constantly changed
To, promote main piston 14 to move left and right, drive auxiliary piston 10 to concede and reduce space, complete liquid suction and discharge, circulation is dynamic
Make generation negative pressure, the combined tubing string 3 of fluid in wellbore casing 2 is drawn to into ground, complete fluid from wellbore casing 2 to ground
Output process.
Claims (2)
1. a kind of oil gas field negative pressure quarrying apparatus, is characterized in that：In wellhead assembly（1）Have wellbore casing below（2）, compound tube
Post（3）Hang on wellhead assembly（1）On, combined string（3）Outlet part and pump inlet pipe（8）It is connected；Combined string（3）On according to
It is secondary that screen casing is installed（6）, standing valve（5）With earial drainage device（4）；Wellbore casing（2）Under on stratum（7）It is interior；In pump inlet pipe（8）On
It is connected to two pumps and enters valve（9）, pump enters valve (9) and is fixed on cylinder body（15）Bottom, cylinder body（15）Top is fixed with two and pumps out valve
（12）, on valve (12) is pumped out pump-out pipe is connected（17）；Cylinder body（15）Bottom inside connects two electromagnetic valves（13）；Negative pressure on ground
Apparatus main body is cylinder body（15）, cylinder body（15）Body is piston cavity, in cylinder body（15）Middle built-in main piston（14）Live with pair
Plug（10）, main piston（14）And auxiliary piston（10）For integral type structure；In cylinder body（15）Sealing drum is inside installed（11）；Hydraulic pressure enters
Pipe（16）One end be connected to cylinder body（15）On, hydraulic pressure inlet pipe（16）The other end and liquid storage tank（20）Connection, and in centre
Hydraulic pump is installed（19）；Liquid storage tank（ 20）On be connected to hydraulic pressure return pipe（18）.
2. a kind of recovery method of oil gas field negative pressure quarrying apparatus described in claim 1, is characterized in that：Using negative pressure on ground device
By the fluid in combined string lifting wellbore casing to ground, combined string is provided with standing valve to produced negative pressure of vacuum
Fluid reflux is prevented, while it is easy to the formation of negative pressure of vacuum, beneficial to fluid output；Negative pressure on ground device will by ground hydraulic pump
Hydraulic oil in oil storage pool squeezes into hydraulic pressure inlet pipe, and the electromagnetic valve (13) on the left side first is opened, electromagnetic valve of the hydraulic oil through the left side
（13）Into main piston（14）The left side and cylinder body（15）Between cavity, supercharging, main piston in cavity（14）Move to right, drive secondary living
Plug（10）Move to right, auxiliary piston（10）Space is conceded with the sealing drum on the left side, now the pump on the left side enters valve（9）Opening, the pump on the left side
Go out valve（12）Close, produce negative pressure, wellbore fluids suction；Simultaneously the electromagnetic valve on the right is opened, and hydraulic oil is back to liquid storage tank
（20）；Auxiliary piston（10）When moving to right, auxiliary piston（10）Diminish with the space of the sealing drum on the right, the pump on the right enters valve closing, the right side
The valve that pumps out on side is opened, and produces malleation, and fluid is discharged；After left chamber imbibition terminates, the electromagnetic valve on the right is opened, and hydraulic oil is through right
The electromagnetic valve on side enters main piston（14）The right and cylinder body（15）Between cavity, supercharging, main piston in cavity（14）Move to left, band
Dynamic auxiliary piston（10）Move to left, auxiliary piston（10）With the sealing drum on the right concede space, now the pump on the right enter valve open, the right
Valve closing is pumped out, negative pressure, wellbore fluids suction is produced；While the electromagnetic valve on the left side（13）Open, hydraulic oil is back to liquid storage tank
（20）；Auxiliary piston（10）When moving to left, auxiliary piston（10）With the sealing drum on the left side（11）Space diminish, the pump on the left side enters valve（9）
Close, the left side pumps out valve（12）Open, produce malleation, fluid is discharged；By two electromagnetic valves in left and right（13）Unlatching successively,
Close, hydraulic oil constantly commutates, and promotes main piston（14）Move left and right, drive auxiliary piston（10）Space is conceded and reduced, is completed
Liquid is sucked and discharged, and do action produces negative pressure, by wellbore casing（2）The combined tubing string of interior fluid（3）Ground is drawn to, is completed
Fluid is from wellbore casing（2）The interior output process to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694104.7A CN104594858B (en) | 2014-11-27 | 2014-11-27 | Oil-gas field negative-pressure exploiting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694104.7A CN104594858B (en) | 2014-11-27 | 2014-11-27 | Oil-gas field negative-pressure exploiting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594858A CN104594858A (en) | 2015-05-06 |
| CN104594858B true CN104594858B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410694104.7A Expired - Fee Related CN104594858B (en) | 2014-11-27 | 2014-11-27 | Oil-gas field negative-pressure exploiting device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104594858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111022038B (en) * | 2019-11-22 | 2023-04-25 | 中国石油天然气股份有限公司 | Underground visual sleeve breaking water point detection method for nitrogen gas lift |
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|---|---|---|---|---|
| CN2721868Y (en) * | 2004-06-02 | 2005-08-31 | 中国石油天然气股份有限公司 | Deep-pumping tubular column for extracting oil |
| RU2331757C2 (en) * | 2006-07-03 | 2008-08-20 | Наиль Минрахманович Нуртдинов | Method to optimise oil production |
| CN102032145A (en) * | 2010-10-22 | 2011-04-27 | 中国石油天然气股份有限公司 | Differential pressure power pressure booster |
| CN202381046U (en) * | 2011-12-16 | 2012-08-15 | 中国石油天然气股份有限公司 | Negative pressure flow string for oilfield pumping well |
| CN202500536U (en) * | 2011-12-16 | 2012-10-24 | 中国石油天然气股份有限公司 | Oil pumping tubing string and oil pumping rod string with self-locking type on-off connector |
| CN103758739A (en) * | 2014-01-06 | 2014-04-30 | 北京万普瑞能源技术有限公司 | Hydraulic piston pump lifting system |
| CN204252978U (en) * | 2014-11-27 | 2015-04-08 | 申健 | A kind of oil gas field negative pressure quarrying apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130343928A1 (en) * | 2012-06-25 | 2013-12-26 | I-Jack Technologies Incorporated | Lift system |
-
2014
- 2014-11-27 CN CN201410694104.7A patent/CN104594858B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721868Y (en) * | 2004-06-02 | 2005-08-31 | 中国石油天然气股份有限公司 | Deep-pumping tubular column for extracting oil |
| RU2331757C2 (en) * | 2006-07-03 | 2008-08-20 | Наиль Минрахманович Нуртдинов | Method to optimise oil production |
| CN102032145A (en) * | 2010-10-22 | 2011-04-27 | 中国石油天然气股份有限公司 | Differential pressure power pressure booster |
| CN202381046U (en) * | 2011-12-16 | 2012-08-15 | 中国石油天然气股份有限公司 | Negative pressure flow string for oilfield pumping well |
| CN202500536U (en) * | 2011-12-16 | 2012-10-24 | 中国石油天然气股份有限公司 | Oil pumping tubing string and oil pumping rod string with self-locking type on-off connector |
| CN103758739A (en) * | 2014-01-06 | 2014-04-30 | 北京万普瑞能源技术有限公司 | Hydraulic piston pump lifting system |
| CN204252978U (en) * | 2014-11-27 | 2015-04-08 | 申健 | A kind of oil gas field negative pressure quarrying apparatus |
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| CN104594858A (en) | 2015-05-06 |
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| CB03 | Change of inventor or designer information |
Inventor after: Shen Jian Inventor after: Li Yanli Inventor after: Shen Shiyuan Inventor after: Liu Haibo Inventor after: Han Fumin Inventor after: Li Xiaowei Inventor after: Gao Wangang Inventor after: Zhang Mingdong Inventor after: Yi Mingxin Inventor after: Li Aiyin Inventor after: Zhang Kui Inventor before: Shen Jian Inventor before: Bian Zhengsheng Inventor before: Liu Haibo Inventor before: Zhao Yuxin Inventor before: Wang Mule Inventor before: Yang Lichang Inventor before: Zhang Yanling Inventor before: Xu Xianghui Inventor before: Wei Kunpeng Inventor before: Yang Jianguo |
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