CN106968640A - A kind of drainage underground gas production instrument - Google Patents
A kind of drainage underground gas production instrument Download PDFInfo
- Publication number
- CN106968640A CN106968640A CN201710154637.XA CN201710154637A CN106968640A CN 106968640 A CN106968640 A CN 106968640A CN 201710154637 A CN201710154637 A CN 201710154637A CN 106968640 A CN106968640 A CN 106968640A
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- cylinder
- liquid
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
Abstract
The invention discloses be used for the downhole tool of natural gas well water pumping gas production in a kind of petroleum drilling and mining field.Its technical scheme is：The instrument is made up of transit joint, packer module, overflow valve module, inversion valve module, guide's valve module, drive module, No. two pump modules, ball-and-seat pipe nipple, pump module, ball-and-seat pipe nipple, bottom and main outer barrel.The instrument is supplied without additional energy, only needs the natural gas produced by the natural gas well itself as power resources.Gas enters from the gas access on the instrument, is pressurized through multi-stage cylinder and drives reciprocal pump machanism to work, so that hydrops in well is pumped into ground through oil pipe.Natural gas then enters oil jacket annular space through the gas discharge outlet in the instrument and flow to surface production pipeline.The drainage underground gas production instrument can be used for the water pumping gas production operation of straight well, inclined shaft and horizontal well, and simple with construction operation, and operating cost is low and to the free of contamination advantage in stratum, is suitable for low pressure, the water pumping gas production operation of gas stringer.
Description
Technical field
The present invention relates to a kind of downhole tool for natural gas well water pumping gas production, belong to petroleum drilling and mining field.
Background technology
Low hole, hypotonic weak elastic water drive gas field, because strata pressure declines, cause when entering the tail period stage
Bottom water rises and edge water propelling；After having Gas Reservoirs water outlet, as that can not discharge in time, it can cause serious to gas well liquid loading
Harm, is mainly manifested in：Stratum water accumulates in shaft bottom, increases the back pressure in shaft bottom, so as to reduce gas yield, can be caused when serious
Gas well water logging stops production；Prolonged hydrops immersion can cause greatly pollution and injure to stratum simultaneously；So fast and effeciently
Discharge opeing is to ensure the key that gas well can be produced normally；Both at home and abroad for natural gas well water drainage-gas recovery technology research for many years
History and have developed a series of water drainage-gas recovery technology and kit；Can be by water drainage-gas recovery technology according to technological principle
It is divided into three major types：1. it is based on aerodynamics, the method that the critical flow velocity required for liquid is taken in reduction, such as：Optimizing pipe string draining is adopted
Gas technology, vortex drainage gas production technology；2. chemical method is based on, energy, frictional force required for reduction lifting make liquid dispersion
To improve efficiency, such as：Technology of gas recovery by foam drainage；3. mechanical means, such as：Plunger lift drainage gas recovery, machine pump drainage hydromining
Gas technology etc.；First two water pumping gas production method there are certain requirements to gas well yield, only meet the minimum gas stream taken needed for liquid
Speed just can guarantee that and hydrops will not be produced in pit shaft or hydrops in pit shaft is discharged；Ensureing the method for gas yield has two kinds：One kind is
Just it disclosure satisfy that by the gas production of gas well itself；Another is to ensure gas well yield by being artificially injected natural gas；Latter
Water pumping gas production method is less demanding to gas well yield；So for the well of different well type, gas production, water yield and gas liquid ratio,
Most suitable water drainage-gas recovery technology can be selected to obtain the economic benefit of maximum by using scientific and reasonable method for optimizing.
At present, for low pressure, low yield gas wet well can use machine water-pumping/draining gas producing technology, but the technique easily by
The limitation of well type, it is impossible to be used in the water pumping gas production operation of high angle hole and horizontal well；Meanwhile, required for machine water-pumping/draining gas producing technology
Cost of investment and maintenance cost can not meet gas stringer exploitation demand；Accordingly, it would be desirable to one kind be specially adapted for low pressure, it is low
The drainage gas production tool of gas-producing well, reduction cost of investment and operating cost while the requirement of well type adaptability is met as far as possible,
So as to improve low pressure, the economic benefit of gas stringer exploitation.
The content of the invention
The purpose of the present invention is：In order to make up the deficiency of existing water drainage-gas recovery technology technology, low pressure, low yield are further improved
The economic benefit of gas well exploitation, spy provides a kind of Novel down-hole drainage gas production tool；The instrument is applied to straight well, inclined shaft and water
Horizontal well, is supported without ground special installation, without additional energy supply, only relies on the natural gas produced by gas well itself as dynamic
Power is originated；Natural gas enters from the gas access on the instrument, is pressurized through multi-stage cylinder and drives reciprocal pump machanism to work, so that
Hydrops in pit shaft is delivered to ground through oil pipe；Natural gas then enters oil jacket annular space cocurrent from the gas discharge outlet in the instrument
To surface production pipeline.
In order to achieve the above object, the technical solution adopted for the present invention to solve the technical problems is：A kind of drainage underground
Gas production instrument, its architectural feature is：The drainage underground gas production instrument is by transit joint 94, packer module 95, overflow valve mould
Block 96, inversion valve module 97, guide's valve module 98, drive module 99, No. two pump modules 100, ball-and-seat pipe nipple A101, a pumps
Module 102, ball-and-seat pipe nipple B103, bottom 104, main outer barrel 71 and pressure cap 72 are constituted.
The top of transit joint 94 is used for connection screw thread 114 and oil pipe 93 is connected, and liquid is machined with inside transit joint 94
Body passing away C81, gas outlet channels A84, liquid inlet channel A82 and liquid discharge passage A79, in liquid discharge passage
Ball-and-seat A3 is installed in A79, rupture disk 2 is installed in liquid discharge passage C81 exit；The upper end of packer 11 and transition
The lower end of joint 94 be connected through a screw thread set B5 be attached, packer module 95 according to actual use situation may be selected machinery or
Hydraulic setting.
The lower end of packer 11, using being threadedly coupled, liquid is machined with inside overflow valve module 96 with the upper end of overflow valve module 96
Into passage A82, gas outlet channels B85 and gas inlet passages A86, overflow valve 6 is installed inside overflow valve module 96, overflow
Stream valve inlet 117 is connected with gas inlet passages A86, and overflow valve outlet B116 is connected with gas outlet channels B85；Overflow valve mould
Gas-liquid channel between block 96 and transit joint 94 is connected by the conduit A4 through the inner central tube of packer 11 with conduit B7；Overflow
The stream lower end of valve module 96 is attached with the upper end of nipple joint 17 with threaded connecting sleeve A15, the lower end of nipple joint 17 and main outer barrel
71 using threaded connection；Gas-liquid channel between inversion valve module 97 and overflow valve module 96 passes through leading through nipple joint 17
Pipe C8, conduit D10 are connected with conduit E18.
The outer barrel under outer barrel 22, commutation valve curtain 19, reversal valve on reversal valve top cover 12, reversal valve of inversion valve module 97
26th, reversal valve bottom 23, commutation valve piston A14, commutation valve piston B21 and reversal valve piston rod 16 are constituted；Reversal valve top cover
12nd, under outer barrel 22 on reversal valve, commutation valve curtain 19, reversal valve between outer barrel 26 and the end face that contacts with each other of reversal valve bottom 23
Gasket seal 20 is installed；Valve piston A14 commutate with being equipped with sealing ring 43 on commutation valve piston B21；Filled on commutation valve curtain 19
There is piston rod packing 24；Be machined with reversal valve top cover 12 through hole parallel with its axis direction and respectively with gas inlet passages
B87, liquid inlet channel A82, gas outlet channels B85, gas inlet passages C88 and liquid discharge passage A79 axis weight
Close；The duct parallel with its axis direction is machined with reversal valve on outer barrel 22 and is entered respectively with gas inlet passages B87, liquid
Enter passage A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge logical
Road A79 and gas passage A89 axis are overlapped；The duct parallel with its axis direction and difference are machined with commutation valve curtain 19
With gas inlet passages B87, liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas inlet passages
C88, gas passage C91, liquid discharge passage A79 and gas passage A89 axis are overlapped；It is machined with reversal valve on outer barrel 26
The duct parallel with its axis direction and respectively with gas inlet passages B87, gas passage B90, liquid inlet channel A82, gas
Body passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas are logical
Road A89 axis is overlapped；Be machined with reversal valve bottom 23 duct parallel with its axis direction and respectively with gas passage
B90, liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91,
Liquid discharge passage A79 and gas passage A89 axis are overlapped.
Guide's valve module 98 is by pilot valve outer barrel A28, guide's valve curtain A30, pilot valve outer barrel B32, guide's valve curtain
B34, pilot valve outer barrel C36, pilot valve collision block A27, guide's valve piston 29, pilot valve collision block B33 and collision block connecting rod 31 are constituted；First
Through hole is machined with the middle of pilot valve piston 29 in the axial direction, collision block connecting rod 31 is passed through and and guide from the through hole of guide's valve piston 29
Valve collision block A27 is connected with pilot valve collision block B33；Pilot valve outer barrel A28, guide's valve curtain A30, pilot valve outer barrel B32, pilot valve
Gasket seal 20 is installed between dividing plate B34 and pilot valve outer barrel the C36 end face that contacts with each other；Equipped with close on guide's valve piston 29
Seal 43；Support ring 25 is housed on pilot valve collision block A27 and pilot valve collision block B33；It is machined with and its axle on pilot valve outer barrel A28
The parallel duct in line direction and respectively with gas passage B90, liquid inlet channel A82, gas passage D92, gas outlet channels
B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas passage A89 axis are overlapped；Pilot valve
Be machined with dividing plate A30 the through hole parallel with its axis direction and respectively with gas passage B90, liquid inlet channel A82, gas
Passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas passage
A89 axis is overlapped；Be machined with pilot valve outer barrel B32 the duct parallel with its axis direction and respectively with gas passage B90,
Liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid
Passing away A79 and gas passage A89 axis are overlapped；Parallel with its axis direction lead to is machined with guide's valve curtain B34
The hole and axis with gas passage B90, liquid inlet channel A82, liquid discharge passage A79 and gas passage A89 is overlapped respectively；
Be machined with pilot valve outer barrel C36 the through hole parallel with its axis direction and respectively with gas passage B90, liquid inlet channel
A82, liquid discharge passage A79 and gas passage A89 axis are overlapped.
Drive module 99 by drive cylinder dividing plate A38, drive cylinder A41, drive cylinder dividing plate B45, drive cylinder B47,
Drive cylinder dividing plate C49, drive cylinder C51, drive cylinder dividing plate D53, drive cylinder D56, drive cylinder dividing plate E58, cylinder
Piston rod A35, cylinder piston A37, cylinder piston rod B39, cylinder piston B40, cylinder piston rod C42, cylinder piston C44, gas
Cylinder piston rod D46, cylinder piston D48 and cylinder piston rod E50 compositions；Under cylinder piston rod A35 upper ends and pilot valve collision block B33
End connection；Drive cylinder dividing plate A38, drive cylinder A41, drive cylinder dividing plate B45, drive cylinder B47, drive cylinder dividing plate
C49, drive cylinder C51, drive cylinder dividing plate D53, drive cylinder D56 and drive cylinder dividing plate E58 contact with each other end face it
Between gasket seal 20 is installed；Equipped with sealing on cylinder piston A37, cylinder piston B40, cylinder piston C44 and cylinder piston D48
Circle 43；Drive cylinder dividing plate A38, drive cylinder dividing plate B45, drive cylinder dividing plate C49, drive cylinder dividing plate D53 and driving gas
Piston rod packing 24 is housed on cylinder dividing plate E58；Drive cylinder dividing plate A38, drive cylinder dividing plate B45, drive cylinder dividing plate C49,
Drive cylinder dividing plate D53 is with being machined with the through hole parallel with its axis direction and leading to respectively with gas on drive cylinder dividing plate E58
Road B90, liquid inlet channel A82, liquid discharge passage A79 and gas passage A89 axis are overlapped；Drive cylinder A41, driving
The duct parallel with its axis direction is machined with cylinder B47, drive cylinder C51 and drive cylinder D56 and logical with gas respectively
Road B90, liquid inlet channel A82, liquid discharge passage A79 and gas passage A89 axis are overlapped.
A number pump module 102 is made up of fluid cylinder B61 with liquid cylinder piston B68；No. two pump modules 100 are lived by fluid cylinder A62, fluid cylinder
A63 and ball-and-seat B52 is filled in constitute；Liquid cylinder piston A63 upper ends are connected with cylinder piston rod E50；Liquid cylinder piston A63 and liquid cylinder piston
Connected between B68 by liquid cylinder piston bar 57；Ball-and-seat pipe nipple A101 is by ball-and-seat modules A 67, ball-and-seat C54, ball-and-seat D55
Constitute and be located between No. two pump modules 100 and a pump module 102 with ball-and-seat D60, centre is machined with logical in the axial direction
Hole is simultaneously provided with piston rod packing 24, and liquid cylinder piston bar 57 is passed through through the through hole from ball-and-seat pipe nipple A101；Liquid cylinder piston A63
With being equipped with piston seal 65 on liquid cylinder piston B68；The end face that contacts with each other between fluid cylinder A62, ball-and-seat modules A 67 and fluid cylinder B
Gasket seal 20 is installed；Be machined with fluid cylinder A62 the duct parallel with its axis direction and respectively with liquid inlet channel A82
Overlapped with liquid discharge passage A79 axis；The duct parallel with its axis direction and difference are machined with ball-and-seat modules A 67
Overlapped with liquid inlet channel A82, liquid discharge passage B80 and liquid discharge passage A79 axis, liquid discharge passage B80
It is connected between liquid discharge passage A79 by duct；Be machined with fluid cylinder B the duct parallel with its axis direction and respectively with
Liquid inlet channel A82, liquid discharge passage B80 and liquid discharge passage A79 axis are overlapped；Ball-and-seat pipe nipple B103 is by list
Valve module B59, ball-and-seat F64 and ball-and-seat G69 is flowed to constitute；It is machined with single current valve module B59 parallel with its axis direction
The duct and axis with liquid inlet channel A82, liquid discharge passage B80 and liquid discharge passage A79 is overlapped respectively；Bottom
104 are made up of bottom 70 with filter 66；Bottom 70 is machined with through hole in the axial direction, and through hole bottom uses screw thread and filter
66 connections；The duct parallel with its axis direction is machined with bottom 70 and logical with liquid inlet channel A82, liquid discharge respectively
Road B80 and liquid discharge passage A79 axis are overlapped；Fluid cylinder B61, single current valve module B59 and bottom 70 end face that contacts with each other
Between gasket seal 20 is installed.
Inversion valve module 97, guide's valve module 98, drive module 99, No. two pump modules 100, ball-and-seat pipe nipple A101, one
Number pump module 102, ball-and-seat pipe nipple B103 and bottom 104 are arranged in main outer barrel 71 and by being connected to the main bottom of outer barrel 71
Pressure cap 72 is tight by the contact jaw face pressure between each module.
The present invention compared with prior art, has the advantages that：（1）Do not limited by well type, this drainage underground is adopted
Gas instrument can be used for the water pumping gas production operation of straight well, inclined shaft and horizontal well；（2）Construction operation is simple, is adopted using this drainage underground
Gas instrument is supported with preparing before construction without excessive ground installation, it is only necessary to which this instrument is connected in oil pipe and lower going-into-well,
Set packer, which installs wellhead assembly and production flow line, can carry out water pumping gas production operation；（3）This drainage underground gas production instrument
Natural gas of the power resources in stratum supplied without additional energy, so as to reduce operating cost and to stratum without dirt
Dye, is particularly suitable for low pressure, the water pumping gas production operation of gas stringer.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of overall structure diagram of drainage underground gas production instrument of the invention；
Fig. 2 is a kind of scheme of installation of drainage underground gas production instrument of the invention；
Fig. 3 is a kind of partial structural diagram A of drainage underground gas production instrument of the invention；
Fig. 4 is a kind of partial structural diagram B of drainage underground gas production instrument of the invention；
Fig. 5 is a kind of partial structural diagram C of drainage underground gas production instrument of the invention；
Fig. 6 is a kind of operation principle schematic diagram of drainage underground gas production instrument of the invention.
In figure：1. top connection, 2. rupture disks, 3. ball-and-seat A, 4. conduit A, 5. threaded connecting sleeve B, 6. overflow valves, 7. lead
Pipe B, 8. conduit C, 9. packing elements, 10. conduit D, 11. packers, 12. reversal valve top covers, 13. overflow valve pipe nipples, 14. change
To valve piston A, 15. threaded connecting sleeve A, 16. reversal valve piston rods, 17. nipple joints, 18. conduit E, 19. reversal valves every
Outer barrel, 23. reversal valve bottoms, 24. piston rod packings, 25. on plate, 20. gasket seals, 21. commutation valve piston B, 22. reversal valves
Outer barrel under support ring, 26. reversal valves, 27. pilot valve collision block A, 28. pilot valve outer barrel A, 29. guide's valve pistons, 30. pilot valves
Dividing plate A, 31. collision block connecting rods, 32. pilot valve outer barrel B, 33. pilot valve collision block B, 34. guide's valve curtain B, 35. cylinder piston rods
A, 36. pilot valve outer barrel C, 37. cylinder piston A, 38. drive cylinder dividing plate A, 39. cylinder piston rod B, 40. cylinder piston B,
41. drive cylinder A, 42. cylinder piston rod C, 43. sealing rings, 44. cylinder piston C, 45. drive cylinder dividing plate B, 46. cylinders are lived
Stopper rod D, 47. drive cylinder B, 48. cylinder piston D, 49. drive cylinder dividing plate C, 50. cylinder piston rod E, 51. drive cylinder C,
52. ball-and-seat B, 53. drive cylinder dividing plate D, 54. ball-and-seat C, 55. ball-and-seat D, 56. drive cylinder D, 57. liquid cylinder piston bars,
58. drive cylinder dividing plate E, 59. single current valve module B, 60. ball-and-seat E, 61. fluid cylinder B, 62. fluid cylinder A, 63. liquid cylinder piston A, 64.
Ball-and-seat F, 65. piston seals, 66. filters, 67. ball-and-seat modules As, 68. liquid cylinder piston B, 69. ball-and-seat G, 70. bottoms,
71. main outer barrel, 72. pressure caps, 73. gas vents, 74. gas access A, 75. No. two pump liquid entrances, No. 76. pump liquids go out
Mouthful, the outlet of 77. No. two pump liquids, a No. 78. pump liquid entrances, 79. liquid discharge passage A, 80. liquid discharge passage B, 81.
Liquid discharge passage C, 82. liquid inlet channel A, 83. liquid inlet channel B, 84. gas outlet channels A, the discharge of 85. gases
Passage B, 86. gas inlet passages A, 87. gas inlet passages B, 88. gas inlet passages C, 89. gas passage A, 90. gases
Passage B, 91. gas passage C, 92. gas passage D, 93. oil pipes, 94. transit joints, 95. packer modules, 96. overflow valve moulds
Block, 97. inversion valve modules, 98. guide's valve modules, 99. drive modules, 100. No. two pump modules, 101. ball-and-seat pipe nipple A,
102. a pump module, 103. ball-and-seat pipe nipple B, 104. bottoms, 105. reservoirs, 106. sleeve pipes, 107. wellhead assemblies, 108. gas
Body is exported, 109. liquid outlets, 110. packer bottom wellbore gas, 111. packer bottom wellbore fluids, 112. packers
Upper annulus liquid, 113. packer upper annulus gases, 114. connection screw threads, 115. overflow valve outlet A, 116. overflow valves go out
Mouth B, 117. overflow valve inlets, 118. gas access B, 119. gas access C, 120. reversal valve interface A, 121. reversal valve interfaces
B, 122. reversal valve interface C, 123. reversal valve interface D, 124. reversal valve interface E, 125. reversal valve interface F, 126. reversal valves
Interface Ga, 127. reversal valve interface Gb, 128. reversal valve interface Ha, 129. reversal valve interface Hb, 130. pilot valve interface A,
131. pilot valve interface B, 132. pilot valve interface C, 133. pilot valve interface D, 134. pilot valve interface E, 135. drive cylinders
Interface Aa, 136. drive cylinder interface Ab, 137. drive cylinder interface Ac, 138. drive cylinder interface Ad, 139. drive cylinders
Interface Ba, 140. drive cylinder interface Bb, 141. drive cylinder interface Bc, 142. drive cylinder interface Bd, 143. fluid cylinder A interfaces
The liquid inlet channel of the fluid cylinder B interface of A, 144. fluid cylinder A interfaces B, 145. A, 146. fluid cylinder B interface B, 147. C, exercise group on 148.
Part, 149. times moving parts.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings：A kind of drainage underground gas production instrument, mainly includes：Transition connects
First 94, packer module 95, overflow valve module 96, inversion valve module 97, guide's valve module 98, drive module 99, No. two pump moulds
Block 100, ball-and-seat pipe nipple A101, pump module 102, ball-and-seat pipe nipple B103, bottom 104,71 main outer barrels and 72 pressure cap groups
Into.This drainage underground gas production instrument is connected by transit joint 94 with oil pipe 93 and in lower going-into-well, and set packer 11 installs well
Mouth device 107 after surface production pipeline with that can carry out water pumping gas production operation；The effect of packer 11 is that pit shaft is separated into two
Part：The upper annulus of packing element 9 is made up of packer upper annulus liquid 112 with packer upper annulus gas 113；Envelope
It is made up of every the bottom pit shaft of device packing element 9 packer bottom wellbore gas 110 with packer bottom wellbore fluid 111；Arrange this underground
The natural gas of power resources output in reservoir 105 of hydromining gas instrument.
After packer 11 is set, packer bottom wellbore gas 110 is entered by the gas access A74 on overflow valve module 96
Enter gas inlet passages A86, subsequent gas enters and flows through overflow valve 6 from overflow valve inlet 117 and flowed out from overflow valve outlet 115
Inside nipple joint 17；The reversal valve top cover 12 that gas inside nipple joint 17 is connected from the lower end of nipple joint 17
On gas access B118 and gas access C119 respectively enter gas inlet passages B87 and gas and enter channel C 88：1. one
Divide gas to enter inversion valve module 97 along gas inlet passages B87, pass through commutated in inversion valve module 97 valve piston A14 and commutation
Valve piston B21 change in location controls gas vent direction so as to driving the drive cylinder piston reciprocating in drive module 99 to transport
It is dynamic：When the valve piston A14 that commutates is located at upper end with commutation valve piston B21, gas enters reversal valve by reversal valve interface B121
And flowed out from reversal valve interface D123 and along gas passage B through drive cylinder interface Aa135, drive cylinder interface Ab136, driving
Cylinder interface Ac137, drive cylinder interface Ad138 enter drive cylinder and promote drive cylinder piston stroking upward；Drive cylinder is lived
The gas in portion is from drive cylinder interface Ba139, drive cylinder interface Bb140, drive cylinder interface Bc141, drive cylinder beyond the Great Wall
Interface Bd142 is discharged and is entered gas outlet channels B85 through reversal valve interface E124 along gas passage A89 into reversal valve, most
Discharged by gas outlet channels A84 from gas vent 73；When the valve piston A14 that commutates is located at lower end with commutation valve piston B21,
Gas enters reversal valve by reversal valve interface A120 and flowed out and along gas passage A through drive cylinder from reversal valve interface C122
Interface Ba139, drive cylinder interface Bb140, drive cylinder interface Bc141, drive cylinder interface Bd142 enter drive cylinder simultaneously
Promote drive cylinder descent of piston；The gas of drive cylinder piston lower portion is from drive cylinder interface Aa135, drive cylinder interface
Ab136, drive cylinder interface Ac137, drive cylinder interface Ad138 discharges simultaneously enter reversal valve through commutation along gas passage B90
Valve interface F125 enters gas outlet channels B85, is most discharged afterwards through gas outlet channels A84 from gas vent 73；2. another portion
Divide gas to enter guide's valve module 98 along gas inlet passages C88, pass through the position of guide's valve piston 29 in guide's valve module 98
Change to control gas vent direction to drive the commutation valve piston A14 in inversion valve module 97 and commutation valve piston B21's
Move back and forth：When pilot valve piston 29 is located at upper end, gas enters pilot valve and from pilot valve by pilot valve interface E134
Interface C132 flows out and enters reversal valve through reversal valve interface Ga126 and reversal valve interface Gb127 along gas passage D92 and promote
The valve piston A14 and commutation valve piston B21 that commutates is descending；Commutate valve piston A14 and commutation valve piston B21 bottoms gas from commutation
Valve interface Ha128 and reversal valve interface Hb129 is discharged and entered pilot valve along gas passage C91 to be entered through pilot valve interface A130
Gas outlet channels B85, is most discharged through gas outlet channels A84 from gas vent 73 afterwards；When pilot valve piston 29 is located at lower end
When, gas enters pilot valve by pilot valve interface E134 and flowed out and along gas passage C91 from pilot valve interface D133 through changing
Enter reversal valve to valve interface Ha128 and reversal valve interface Hb129 and promote commutation valve piston A14 with commutating on valve piston B21
OK；The gas on commutation valve piston A14 and commutation valve piston B21 tops is arranged from reversal valve interface Ga126 and reversal valve interface Gb127
Go out and enter pilot valve through pilot valve interface B131 into gas outlet channels B85 along gas passage D92, most discharged afterwards through gas
Passage A84 is discharged from gas vent 73；Drive cylinder piston reciprocates through the pilot valve connected on cylinder piston rod A35
Collision block B33, collision block connecting rod 31 and pilot valve collision block A27 pass to guide's valve piston 29 to have driven the past of guide's valve piston 29
Multiple motion；Collision block connecting rod 31 is passed through from the center of guide's valve piston 29 but is not in contact with it, when pilot valve collision block B33 is in cylinder piston
Pilot valve collision block B33 tops are contacted and common motion upwards with the bottom of guide's valve piston 29 when end is gone upward under the drive of bar
Until upstroke terminates, now guide's valve piston 29 is located at upper end；When pilot valve collision block A27 is under the drive of cylinder piston rod
The tip contact of pilot valve collision block A27 bottoms and guide's valve piston 29 and moved downward jointly until descending fortune when coming downwards to end
Dynamic to terminate, now guide's valve piston 29 is located at lower end.
Cylinder piston in drive module 99 drives the liquid being connected with cylinder piston rod E50 during reciprocating motion
Cylinder piston A63, liquid cylinder piston bar 57 and liquid cylinder piston B68 are moved back and forth together；When liquid cylinder piston A63 is up, on packer
Portion's annulus fluid 112 enters liquid inlet channel A82 by No. two pump liquid entrances 75 on transit joint 94, and liquid is along liquid
Enter No. two pump modules 100 from fluid cylinder A interfaces B144 by ball-and-seat B52 into passage A82；When liquid cylinder piston A63 is descending,
Liquid is discharged through fluid cylinder A interfaces B144 from No. two pump modules 100 and passes through ball-and-seat C54 from No. two along liquid inlet channel A82
Discharge pump liquid outlet 77；Equally, when liquid cylinder piston B68 is up, packer bottom wellbore fluid 111 is entered by filter 66
Enter bottom 104, enter liquid inlet channel B83 through a pump liquid entrance 78, liquid passes through single current along liquid inlet channel B83
Valve G69 enters a pump module 102 from fluid cylinder B interface B146, while liquid cylinder piston B68 upper liquids are discharged from fluid cylinder B interface A
And entering liquid discharge passage A by ball-and-seat D55 along liquid discharge passage B80, liquid finally passes through along liquid discharge passage A
Ball-and-seat A3 enters oil pipe 93；When liquid cylinder piston B68 is descending, packer bottom wellbore fluid 111 is entered by filter 66
Bottom 104, enters liquid inlet channel C147 through a pump liquid entrance 78, and liquid passes through single current along liquid inlet channel C147
Valve F64 enters a pump module 102 from fluid cylinder B interface A145, while liquid cylinder piston B68 lower liquids are discharged from fluid cylinder B interface B
And enter oil pipe 93 by ball-and-seat E60 and ball-and-seat A3 along liquid discharge passage A79.
Operation principle combination Fig. 6 of this drainage underground gas production instrument is described further, and this instrument is in a work week
Four kinds of location status are divided within phase：A、B、C、D.1. when instrument is in state A, the reversal valve in inversion valve module 97
Piston A14, reversal valve piston rod 16 and commutation valve piston B21 compositions upper moving parts 148 are located at lower end, and by pilot valve
Collision block A27, collision block connecting rod 31, pilot valve collision block B33, cylinder piston rod A35, cylinder piston A37, cylinder piston rod B39, cylinder
Piston B40, cylinder piston rod C42, cylinder piston C44, cylinder piston rod D46, cylinder piston D48 cylinder piston rods E50, fluid cylinder
Piston A63, liquid cylinder piston bar 57 and liquid cylinder piston B68 compositions lower moving parts 149 are located at upper end；Now, packer bottom
Wellbore gas 110 then enters inversion valve module 97 and from reversal valve from gas access A74 entering tools from gas access B118
Interface C122 is discharged, and finally enters drive module along gas passage A89 and pusher cylinder piston is moved downward so as to drive lower fortune
Dynamic component 149 is descending；Liquid of the lower moving parts 149 during descending in No. two pump modules 100 goes out through No. two pump liquids
Mouth 77 is discharged；Liquid in a number pump module 102 is discharged through fluid cylinder B interface B146, while sucking liquid from fluid cylinder B interface A145
Body；Instrument fades to state B from state A at the end of lower moving parts 149 are descending；2. when instrument is in state B, upper moving parts
148 are located at lower end, and lower moving parts 149 are located at lower end；Now, packer bottom wellbore gas 110 enters from gas access A74
Instrument, then enters guide's valve module 98 and from pilot valve interface D133 discharges, finally along gas passage from gas access C119
C91 enters inversion valve module 97 and promotes reversal valve piston upwards to drive moving parts 148 up；Upper exercise group
Instrument fades to state C from state B at the end of part 148 is up；3. when instrument is in state C, upper moving parts 148 are located at upper
End, lower moving parts 149 are located at lower end；Now, packer bottom wellbore gas 110 is from gas access A74 entering tools, then
Enter inversion valve module 97 and from reversal valve interface D123 discharges from gas access B118, finally enter along gas passage B90 and drive
Dynamic model block and pusher cylinder piston upwards are so as to drive lower moving parts 149 up；Lower moving parts 149 are in up mistake
Gas in journey in No. two pump modules 100 is discharged through fluid cylinder A interfaces A, while the envelope that suction enters from No. two pump liquid entrances 75
Every device upper annulus liquid 112；Liquid in a number pump module 102 is discharged through fluid cylinder B interface A145, while from fluid cylinder B interface
B146 sucks liquid, and instrument fades to state D from state C at the end of lower moving parts 149 are up；4. when instrument is in state D,
Upper moving parts 148 are located at upper end, and lower moving parts 149 are located at upper end；Now, packer bottom wellbore gas 110 is from gas
Entrance A74 entering tools, then enter guide's valve module 98 from gas access C119 and are discharged from pilot valve interface C132, finally
Enter inversion valve module 97 along gas passage D92 and promote commutation valve piston to move downward to drive under upper moving parts 148
OK；Instrument returns to state A from state D at the end of upper moving parts 148 are descending.
Overflow valve 6 is installed, its object is to the drive module for this drainage underground gas production instrument in overflow valve module 96
99 provide the gas of constant pressure；Overflow valve 6 adjusts oil pressure relief by internal pressure spring, and gas is from gas access
A74 enters gas inlet passages A86 and enters overflow valve 6 through overflow valve inlet 117, when the pressure of packer bottom wellbore gas 110
Vertebra valve valve port when power is higher than oil pressure relief inside overflow valve 6 is opened, and a part of gas enters gas through overflow valve outlet B116
Passing away B85, another part gas enters nipple joint 17 through overflow valve outlet A115.
Rupture disk 2, which is arranged in top connection 1, plays a part of a number pump module 102 of protection and the other components of this instrument,
When the pressure in oil pipe 93 reaches the fracture pressure of rupture disk 2, rupture disk 2 ruptures, and liquid is through liquid discharge passage C81 from oil
Pipe 93 flow to packer upper annulus.
Drive module 99 uses modularized design, by cylinder piston, cylinder piston rod, drive cylinder and drive cylinder dividing plate
One group of elementary cell is constituted, pressure ratio is adjusted by increasing or decreasing the quantity of elementary cell so that this drainage underground gasworker
Has the hole condition of the different well depths of adaptation that can be well.
Claims (8)
1. a kind of drainage underground gas production instrument, be by transit joint 94, packer module 95, overflow valve module 96, main outer barrel 71,
Inversion valve module 97, guide's valve module 98, drive module 99, No. two pump modules 100, ball-and-seat pipe nipple A101, a pump modules
102nd, ball-and-seat pipe nipple B103, bottom 104, main outer barrel 71 and pressure cap 72 are constituted, it is characterised in that：
The top of transit joint 94 is used for connection screw thread 114 and top oil pipe 93 is connected, and liquid is machined with inside transit joint 94
Body passing away C81, gas outlet channels A84, liquid inlet channel A82 and liquid discharge passage A79, in liquid discharge passage
Ball-and-seat A3 is installed in A79, rupture disk 2 is installed in liquid discharge passage C81 exit；The upper end of packer 11 and transition
The lower end of joint 94 is connected through a screw thread set B5 and is attached, and the lower end of packer 11 is carried out with the upper end of overflow valve module 96 by screw thread
Liquid inlet channel A82, gas outlet channels B85 and gas inlet passages A86 are machined with inside connection, overflow valve module 96,
Overflow valve 6 is installed, overflow valve module 96 and transit joint 94 are by through center in packer 11 inside overflow valve module 96
The conduit A4 of pipe is connected with conduit B7；The lower end of overflow valve module 96 is connected with the upper end of nipple joint 17 with threaded connecting sleeve A15
Connect, the lower end of nipple joint 17 is connected through a screw thread with main outer barrel 71；By wearing between inversion valve module 97 and overflow valve module 96
The conduit C8 of nipple joint 17, conduit D10 is crossed with conduit E18 to be connected；Inversion valve module 97 is on reversal valve top cover 12, reversal valve
Outer barrel 22, commutation valve curtain 19, outer barrel 26 under reversal valve, reversal valve bottom 23, commutation valve piston A14, commutation valve piston B21 and
Reversal valve piston rod 16 is constituted；Outer barrel 26 under outer barrel 22, commutation valve curtain 19, reversal valve on reversal valve top cover 12, reversal valve
Gasket seal 20 is installed between the end face that contacts with each other of reversal valve bottom 23；Guide's valve module 98 by pilot valve outer barrel A28,
Guide's valve curtain A30, pilot valve outer barrel B32, guide's valve curtain B34, pilot valve outer barrel C36, pilot valve collision block A27, pilot valve
Piston 29, pilot valve collision block B33 and collision block connecting rod 31 are constituted；Through hole is machined with the axial direction in the middle of guide's valve piston 29, is hit
Block connecting rod 31 is passed through from the through hole of guide's valve piston 29 and is connected with pilot valve collision block A27 with pilot valve collision block B33；Outside pilot valve
Cylinder A28, guide's valve curtain A30, pilot valve outer barrel B32, guide's valve curtain B34 and pilot valve outer barrel the C36 end face that contacts with each other
Between gasket seal 20 is installed；Drive module 99 by drive cylinder dividing plate A38, drive cylinder A41, drive cylinder dividing plate B45,
Drive cylinder B47, drive cylinder dividing plate C49, drive cylinder C51, drive cylinder dividing plate D53, drive cylinder D56, drive cylinder
Dividing plate E58, cylinder piston rod A35, cylinder piston A37, cylinder piston rod B39, cylinder piston B40, cylinder piston rod C42, gas
Cylinder piston C44, cylinder piston rod D46, cylinder piston D48, cylinder piston rod E50 compositions；Cylinder piston rod A35 upper ends and guide
Valve collision block B33 lower ends are connected；Drive cylinder dividing plate A38, drive cylinder A41, drive cylinder dividing plate B45, drive cylinder B47, drive
Take offence the mutual of cylinder dividing plate C49, drive cylinder C51, drive cylinder dividing plate D53, drive cylinder D56 and drive cylinder dividing plate E58
Gasket seal 20 is installed between contact end face；No. two pump modules 100 are made up of fluid cylinder A62 with liquid cylinder piston A63, fluid cylinder A62
In ball-and-seat B52 is installed；A number pump module 102 is made up of fluid cylinder B61 with liquid cylinder piston B68；Liquid cylinder piston A63 upper ends and gas
Cylinder piston rod E50 connections；Connected between liquid cylinder piston A63 and liquid cylinder piston B68 by liquid cylinder piston bar 57；Ball-and-seat pipe nipple
A101 is made up of ball-and-seat modules A 67, ball-and-seat C54, ball-and-seat D55 and ball-and-seat D60 and is located at No. two pump modules 100 and one
Between number pump module 102, centre is machined with through hole and installs piston rod packing 24 in the axial direction, and liquid cylinder piston bar 57 passes through this
Through hole is passed through from ball-and-seat pipe nipple A101；The end face installation that contacts with each other between fluid cylinder A62, ball-and-seat modules A 67 and fluid cylinder B
There is gasket seal 20；Bottom 104 is made up of bottom 70 with filter 66；Bottom 70 is machined with through hole, through hole bottom in the axial direction
End is threaded and is connected with filter 66；Between fluid cylinder B61, single current valve module B59 and the end face that contacts with each other of bottom 70
Gasket seal 20 is installed；Inversion valve module 97, guide's valve module 98, drive module 99, No. two pump modules 100, ball-and-seats are short
Section A101, pump module 102, ball-and-seat pipe nipple B103 and bottom 104 are arranged in main outer barrel 71 and main outer by being connected to
The pressure cap 72 of 71 bottoms of cylinder is tight by the contact jaw face pressure between each module.
2. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：The packer module 95 is according to reality
Border service condition may be selected machinery and set or hydraulic setting.
3. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：Changing in the inversion valve module 97
Be machined with to valve top cover 12 through hole parallel with its axis direction and respectively with gas inlet passages B87, liquid inlet channel
A82, gas outlet channels B85, gas inlet passages C88 and liquid discharge passage A79 axis are overlapped；Outer barrel 22 on reversal valve
On be machined with the duct parallel with its axis direction and respectively with gas inlet passages B87, liquid inlet channel A82, gas lead to
Road D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas passage
A89 axis is overlapped；Commutation valve curtain 19 on be machined with the duct parallel with its axis direction and respectively with gas inlet passages
B87, liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91,
Liquid discharge passage A79 and gas passage A89 axis are overlapped；It is machined with reversal valve on outer barrel 26 parallel with its axis direction
Duct and respectively with gas inlet passages B87, gas passage B90, liquid inlet channel A82, gas passage D92, gas arrange
The axis for going out passage B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas passage A89 is overlapped；
Be machined with reversal valve bottom 23 duct parallel with its axis direction and respectively with gas passage B90, liquid inlet channel
A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and
Gas passage A89 axis is overlapped.
4. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：Elder generation in guide's valve module 98
Be machined with pilot valve outer barrel A28 the duct parallel with its axis direction and respectively with gas passage B90, liquid inlet channel A82,
Gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91, liquid discharge passage A79 and gas
Passage A89 axis is overlapped；Be machined with guide's valve curtain A30 the through hole parallel with its axis direction and respectively with gas passage
B90, liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas inlet passages C88, gas passage C91,
Liquid discharge passage A79 and gas passage A89 axis are overlapped；It is machined with pilot valve outer barrel B32 parallel with its axis direction
Duct and enter respectively with gas passage B90, liquid inlet channel A82, gas passage D92, gas outlet channels B85, gas
The axis for entering channel C 88, gas passage C91, liquid discharge passage A79 and gas passage A89 is overlapped；On guide's valve curtain B34
Be machined with the through hole parallel with its axis direction and respectively with gas passage B90, liquid inlet channel A82, liquid discharge passage
A79 and gas passage A89 axis are overlapped；The through hole parallel with its axis direction and difference are machined with pilot valve outer barrel C36
Overlapped with gas passage B90, liquid inlet channel A82, liquid discharge passage A79 and gas passage A89 axis.
5. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：Driving in the drive module 99
Cylinder dividing plate A38, drive cylinder dividing plate B45, drive cylinder dividing plate C49, drive cylinder dividing plate D53 and drive cylinder dividing plate E58
On be machined with the through hole parallel with its axis direction and logical with gas passage B90, liquid inlet channel A82, liquid discharge respectively
Road A79 and gas passage A89 axis are overlapped；Drive cylinder A41, drive cylinder B47, drive cylinder C51 and drive cylinder D56
On be machined with the duct parallel with its axis direction and logical with gas passage B90, liquid inlet channel A82, liquid discharge respectively
Road A79 and gas passage A89 axis are overlapped.
6. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：Be machined with the fluid cylinder A62 with
The parallel duct of its axis direction and axis with liquid inlet channel A82 and liquid discharge passage A79 is overlapped respectively；Ball-and-seat
Be machined with modules A 67 duct parallel with its axis direction and respectively with liquid inlet channel A82, liquid discharge passage B80
Overlap, connected between liquid discharge passage B80 and liquid discharge passage A79 by duct with liquid discharge passage A79 axis；
Be machined with fluid cylinder B the duct parallel with its axis direction and respectively with liquid inlet channel A82, liquid discharge passage B80 and
Liquid discharge passage A79 axis is overlapped；Be machined with single current valve module B59 the duct parallel with its axis direction and respectively with
Liquid inlet channel A82, liquid discharge passage B80 and liquid discharge passage A79 axis are overlapped；It is machined with and it on bottom 70
The parallel duct of axis direction and respectively with liquid inlet channel A82, liquid discharge passage B80 and liquid discharge passage A79
Axis is overlapped.
7. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：The commutation valve piston A14, commutation
Valve piston B21 is sealed between outer barrel 26 under outer barrel on reversal valve 22, reversal valve with sealing ring 43 respectively；Guide's valve piston 29 with
Sealed between pilot valve outer barrel B32 with sealing ring 43；Cylinder piston A37, cylinder piston B40, cylinder piston C44, cylinder piston
Sealed between D48 and drive cylinder A41, drive cylinder B47, drive cylinder C51, drive cylinder D56 with sealing ring 43；Fluid cylinder is lived
Sealed between plug A63, liquid cylinder piston B68 and fluid cylinder A62, fluid cylinder B61 with piston seal 65.
8. a kind of drainage underground gas production instrument according to claim 1, it is characterized in that：The reversal valve piston rod 16 with
Sealed between commutation valve curtain 19 with piston rod packing 24；Cylinder piston rod A35, cylinder piston rod B39, cylinder piston rod C42,
Cylinder piston rod D46, cylinder piston rod E50 and drive cylinder dividing plate A38, drive cylinder dividing plate B45, drive cylinder dividing plate C49,
Sealed between drive cylinder dividing plate D53, drive cylinder dividing plate E58 with piston rod packing 24；Liquid cylinder piston bar 57 and ball-and-seat mould
Sealed between block A67 with piston rod packing 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154637.XA CN106968640A (en) | 2017-03-15 | 2017-03-15 | A kind of drainage underground gas production instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154637.XA CN106968640A (en) | 2017-03-15 | 2017-03-15 | A kind of drainage underground gas production instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968640A true CN106968640A (en) | 2017-07-21 |
Family
ID=59328681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710154637.XA Pending CN106968640A (en) | 2017-03-15 | 2017-03-15 | A kind of drainage underground gas production instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968640A (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 |
| CN111101907A (en) * | 2019-12-31 | 2020-05-05 | 陕西汇丰悦石油科技开发有限公司 | Underground self-excitation type liquid and gas drainage device |
| CN111779468A (en) * | 2020-05-07 | 2020-10-16 | 中国石油天然气股份有限公司 | Horizontal well inclined shaft section vortex water drainage gas production device and water drainage gas production method |
| CN112377154A (en) * | 2020-11-11 | 2021-02-19 | 中石化石油工程技术服务有限公司 | Automatic drainage device utilizing formation gas through magnetic reversing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514522A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Low-pressure gas well eddy current plunger water drainage and gas collection device |
| US9151141B1 (en) * | 2012-07-10 | 2015-10-06 | Lotram Llc | Apparatus and method for modifying loading in a pump actuation string in a well having a subsurface pump |
| CN106050199A (en) * | 2016-07-29 | 2016-10-26 | 南充西南石油大学设计研究院有限责任公司 | Synthetic drainage and gas production device and method |
| CN106351814A (en) * | 2016-10-14 | 2017-01-25 | 海斯比得（武汉）石油科技有限公司 | Downhole pressurizer, downhole pressurization fracturing tool and downhole pressurization fracturing method |
-
2017
- 2017-03-15 CN CN201710154637.XA patent/CN106968640A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9151141B1 (en) * | 2012-07-10 | 2015-10-06 | Lotram Llc | Apparatus and method for modifying loading in a pump actuation string in a well having a subsurface pump |
| CN104514522A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Low-pressure gas well eddy current plunger water drainage and gas collection device |
| CN106050199A (en) * | 2016-07-29 | 2016-10-26 | 南充西南石油大学设计研究院有限责任公司 | Synthetic drainage and gas production device and method |
| CN106351814A (en) * | 2016-10-14 | 2017-01-25 | 海斯比得（武汉）石油科技有限公司 | Downhole pressurizer, downhole pressurization fracturing tool and downhole pressurization fracturing method |
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 |
| CN108361006B (en) * | 2018-03-09 | 2023-05-23 | 中国石油大学(华东) | Drainage and gas production process method adopting preset pneumatic pipe column |
| CN111101907A (en) * | 2019-12-31 | 2020-05-05 | 陕西汇丰悦石油科技开发有限公司 | Underground self-excitation type liquid and gas drainage device |
| CN111779468A (en) * | 2020-05-07 | 2020-10-16 | 中国石油天然气股份有限公司 | Horizontal well inclined shaft section vortex water drainage gas production device and water drainage gas production method |
| CN112377154A (en) * | 2020-11-11 | 2021-02-19 | 中石化石油工程技术服务有限公司 | Automatic drainage device utilizing formation gas through magnetic reversing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106968640A (en) | A kind of drainage underground gas production instrument | |
| CN101054968B (en) | Hydraulic oil pump | |
| CN102071916B (en) | Jet pump thereof | |
| CN108222890A (en) | A kind of preset tubing string pneumatic type drainage gas production tool | |
| CN107060724A (en) | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well | |
| CN207960579U (en) | A kind of preset tubing string pneumatic type drainage gas production tool | |
| CN109707358A (en) | Fracturing string and its fracturing process | |
| CN103061724B (en) | Towards the layering pressure control associating mining device easily telling powder and telling the two coal seam of sand | |
| CN106401925A (en) | Downhole gas-liquid transduction booster pump | |
| CN210217698U (en) | Three-layer oil well sucker-rod pump oil production and water production reinjection pipe column | |
| CN204457649U (en) | Well liquid drives oil pumping system | |
| CN106401541B (en) | A kind of laminated oil extraction structure adopted of heavy wool | |
| CN103807151B (en) | The continuous lifting pump of oil pumper and its lifting method | |
| CN104533350B (en) | Well liquid drives oil pumping system | |
| CN202731870U (en) | Production-injection device for down-hole oil water separation | |
| RU2513566C2 (en) | Dual string production method in well with increased gas ratio and device for its implementation | |
| CN208669563U (en) | Divide and adopts mixed oil well pump out | |
| US11022109B2 (en) | Double acting linear electrical submersible pump and method for its operation | |
| CN104653541B (en) | A kind of mine water medium hydraulic cylinder and continuous extracting device of oil | |
| CN207268172U (en) | A kind of airlift unit and its gas-lift working barrel | |
| EP1642029B1 (en) | Pump for tail production of oil | |
| CN203145896U (en) | Oil field oil well CO2 airlock prevention flow string | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN203640970U (en) | Underground hydraulic piston pump | |
| CN104806211B (en) | One kind takes over calm the anger extracting device of oil and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170721 |