CN104929586B - Self-control type oil well casing - Google Patents
Self-control type oil well casing Download PDFInfo
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- CN104929586B CN104929586B CN201510344801.4A CN201510344801A CN104929586B CN 104929586 B CN104929586 B CN 104929586B CN 201510344801 A CN201510344801 A CN 201510344801A CN 104929586 B CN104929586 B CN 104929586B
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Abstract
The invention discloses a kind of self-control type oil well casing, including the two poles of the earth concatenation type pull bar piston hydraulic cylinder, the hydraulic stroke oil cylinder, Hydraulic integration commutator and the hydraulic oil pressure guiding pipe that are provided with accumulator.Two hydraulic cylinder front and back ends are respectively equipped with two-way crude oil and enter discharge opeing manifold AB and enter outage with the AB on the top of Hydraulic integration commutator to be connected；P mouthfuls of incoming-stream manifold check valve front end of Hydraulic integration commutator carries oily nonyl one end and is connected with the oily nonyl of the production discharge opeing gate front end on wellhead tree tree, and the discharge opeing manifold flange of T mouthfuls of Hydraulic integration commutator is connected with production production trunk line；The air inlet ball-and-seat of described two hydraulic cylinders is connected with the hollow plug of wellhead casing pipe gate front end, and the exhaust ball-and-seat of described two hydraulic cylinders is connected with T mouthfuls of discharge opeing manifold.The present invention can solve well casing gas and build the pressure for a long time, cause well fluid level to decline the technical problems such as the phenomenon generation of production capacity reduction and gas lock.
Description
Technical field
The present invention relates to oil extraction in oil field technical field, more particularly to casing gas recovering device.
Background technology
There is the geology block of a certain amount of hyposmosis oil-bearing structure in oil field production development middle and later periods many oil recovery blocks,
It is mainly characterized by yielding poorly, oil well casing atmospheric pressure is low, and sleeve pipe combustion gas in process of production hardly results in utilization and reclaims, portion
Point natural gas is accumulated in oil sets annular space, causes the decline of oil well suppressing production capacity, and " gas lock " phenomenon can be caused when serious.Such as
The outer row of fruit can cause the pollution to air again, while waste preciousness forms pernicious following without reproducible cleaning resource
Ring.The product of ripe application is generally valve discharging gas under certain pressure at present, the features such as it has low cost, simple structure, but on condition that must
Must casing gas build the pressure for a long time reach certain pressure could enter oil well production main line in, reach moment discharge, make casing gas
Long-term building the pressure directly affects oil well productivity.Another is that a cylinder is arranged on Framework of Pumping Unit, and air cylinder tie rod is fixed
It is connected with each other on walking beam on pumping units, realizes moving back and forth, it has the disadvantage installation cost high, maintenance difficult, it sometimes appear that gas
Cylinder disables the fatal defects for knocking over oil pumper.
The content of the invention
It is an object of the invention to provide a kind of self-control type oil well casing, suppressed for a long time with solving well casing gas
Pressure, causes well fluid level to decline the technical problems such as the phenomenon generation of production capacity reduction and gas lock.
In order to realize foregoing invention purpose, the technical solution adopted in the present invention is as follows：
Self-control type oil well casing, including the two poles of the earth concatenation type the hydraulic cylinder of pull bar piston first and second, be provided with storage
Can the hydraulic stroke oil cylinder of device, Hydraulic integration commutator and hydraulic oil pressure guiding pipe；The pull bar piston first of the two poles of the earth concatenation type,
Two hydraulic cylinders are the working condition for being staggered front to back pump drainage, and first hydraulic cylinder is connected with the outside of second hydraulic cylinder by cylinder body flange
Connect, and gap bridge seal is provided between first and second hydraulic cylinder, first hydraulic cylinder is by pull bar with the piston of second hydraulic cylinder
Formed through gap bridge seal concatenation；The front and back end of first and second hydraulic cylinder is respectively provided with a hydraulic stroke oil cylinder respectively；Firstth,
Two hydraulic cylinder front and back ends are respectively equipped with two-way crude oil and enter discharge opeing manifold AB and enter discharge opeing with the AB on the top of Hydraulic integration commutator
Hole is connected, and first hydraulic cylinder enters discharge opeing manifold B rows when being into discharge opeing manifold A feed liquors with the active operation mode of second hydraulic cylinder
Liquid, enters discharge opeing manifold B feed liquors and enters discharge opeing manifold A discharge opeings；When hydraulic oil in hydraulic stroke oil cylinder is compressed, by being each provided with
Hydraulic oil pressure guiding pipe all the way, pass it to the hydraulic oil pressure guiding pipe connection end of Hydraulic integration commutator, Hydraulic integration commutation
P mouthfuls of incoming-stream manifold check valve front end of device carries the oily nonyl phase for producing discharge opeing gate front end on oily nonyl one end and wellhead tree tree
Connection, the discharge opeing manifold flange of T mouthfuls of Hydraulic integration commutator is connected with production production trunk line；First and second hydraulic cylinder
Air inlet ball-and-seat valve is connected with the hollow plug of wellhead casing pipe gate front end, the exhaust ball-and-seat of first and second hydraulic cylinder
It is connected with T mouthfuls of discharge opeing manifold；In the hydraulic oil manifold of the Hydraulic integration commutator and the piston nose of hydraulic stroke oil cylinder
Pure hydraulic oil is, the hydraulic system of the self-control type oil well casing is closed loop hydraulic system；The hydraulic pressure
Crude oil in the P inlets and T leakage fluid drams of the Hydraulic integration commutator front and back end of system is isolating seal state；The hydraulic collection
P inlets into commutator are liquid entry end of the oil well in discharge opeing oil well when interval, now enter discharge opeing manifold A and P feed liquors
Mouthful connection, first hydraulic cylinder piston moves ahead, and second hydraulic cylinder piston nose is in discharge opeing state, by entering discharge opeing manifold B by the
The liquid of two hydraulic cylinder piston front ends is entered in T mouthfuls of discharge opeing manifold, and second hydraulic cylinder piston rear end is in air-suction state；When
When one hydraulic cylinder completes compression travel, the hydraulic stroke oil cylinder of second hydraulic cylinder tail end realizes compression, when in hydraulic stroke oil cylinder
Hydraulic oil when being compressed, liquid energy is delivered on Hydraulic integration commutator by hydraulic oil impulse manifold, make Hydraulic integration
Commutator quickly completes the switching that manifold AB enters outage, will second hydraulic cylinder enter discharge opeing manifold B switchings and be changed to feed liquor, by the
One hydraulic cylinder enters discharge opeing manifold A and switches to discharge opeing, is at this moment directly entered the second liquid from P mouthfuls of liquid come in of Hydraulic integration commutator
Entering in discharge opeing manifold B for cylinder pressure, is entered in second hydraulic cylinder cylinder body by entering discharge opeing manifold B, second hydraulic cylinder piston nose
Gas is compressed, and is entered gas in T mouthfuls of discharge opeing manifold by exhaust check valve, into production trunk line, before first hydraulic cylinder
The liquid at end enters liquid in the pipeline that enters the station by entering passages of the discharge opeing manifold A by Hydraulic integration commutator from T mouthfuls, the
The casing gas of one hydraulic cylinder piston rear end are drawn into first hydraulic cylinder cylinder body again.
When the oil well of high back pressure main line, it is described enter discharging tube with when all installed in first hydraulic cylinder front and rear cylinder
On body, enter the liquid effects of discharge opeing manifold A entrance in first hydraulic cylinder piston nose, enter the liquid effects of discharge opeing manifold B entrance
Equally it is to intersect reciprocal operation in first hydraulic cylinder piston rear end, second hydraulic cylinder is pure reciprocating air cylinder；First hydraulic cylinder it is straight
Footpath constitutes the variable-diameter structure of first and second hydraulic cylinder more than the diameter of second hydraulic cylinder.
Two hydraulic oil pressure guiding pipe connection ends of the Hydraulic integration commutator, or it is hydraulic control one-way valve attachment structure；
Or one end is hydraulic control one-way valve, the other end is back-moving spring attachment structure.
It is an advantage of the invention that：The technical barrier in above-mentioned production development effectively can be thoroughly solved, outside need not be new
In the case of power source, same oil well production string oil gas is reached with adopting, effectively raise oil well output；90% low pressure can be made
Well casing gas are recycled utilization, have prevented pollution and the injury to the mankind that the outer row of well casing gas brings to air,
Accomplished oil well casing gas zero, realize energy-conservation, consumption reduction, emission reduction, synergy industrial production exploitation overall economic efficiency,
Social benefit and environmental benefit, have reached the production management target of HSE, low-carbon (LC), green, safety and environmental protection.
Brief description of the drawings
Fig. 1 is the structural front view of the hydraulic cylinder with Hydraulic integration commutator of the first embodiment of the invention.
Fig. 2 is the left view for installing the hydraulic cylinder after intake and exhaust ball-and-seat and Hydraulic integration commutator of Fig. 1.
Fig. 3 is the top view of Hydraulic integration commutator of the invention.
Fig. 4 is the structural front view of the hydraulic cylinder with Hydraulic integration commutator of second embodiment of the invention.
Fig. 5 is that one end of Hydraulic integration commutator of the invention is hydraulic control one-way valve, and the other end is the principle of back-moving spring
Schematic diagram.
Fig. 6 is that the two ends of Hydraulic integration commutator of the invention are the principle schematic of hydraulic control one-way valve.
Fig. 7 is the structural representation that self-control type oil well casing of the invention is arranged on oil pipeline.
Numbered in figure:1st, first hydraulic cylinder hydraulic stroke oil cylinder hydraulic accumulator, 2, first hydraulic cylinder hydraulic stroke oil cylinder
Air silencer, 3, first hydraulic cylinder piston, 4, first hydraulic cylinder, 5, first hydraulic cylinder pull bar, 6, first hydraulic cylinder air admission hole,
7th, pass a bridge sealing, 8, second hydraulic cylinder air admission hole, 9, second hydraulic cylinder, 10, second hydraulic cylinder hydraulic stroke oil cylinder air eliminates the noise
Device, 11, second hydraulic cylinder hydraulic stroke oil cylinder accumulator, 12, second hydraulic cylinder hydraulic stroke oil cylinder, 13, second hydraulic cylinder row
Cheng Kaiguan hydraulic oil pressure guiding pipes, 14, second hydraulic cylinder piston, 15, push rod, 16, hydraulic stroke oil cylinder pass a bridge sealing, 17, method
Orchid, 18, enter discharge opeing manifold B, 19, Hydraulic integration commutator, the 20, second cylinder piston, 21, crude oil inlet, 22, overload protection
Device, 23, enter discharge opeing manifold A, 24, first hydraulic cylinder hydraulic stroke oil cylinder hydraulic oil pressure guiding pipe, 25, first hydraulic cylinder hydraulic stroke
Oil cylinder, 26, exhaust ball-and-seat, 27, exhaust ball-and-seat, 28, pressure gauge, 29, flange, 30, T mouthful discharge opeing manifold, 31, oil nonyl, 32,
Ball-and-seat, 33, pressure gauge, 34, air inlet ball-and-seat, 35, air inlet ball-and-seat, 36, crude oil leakage fluid dram, 37, second another air inlet of cylinder
Hole, 38, wellhead casing pipe gate, 39, production discharge opeing gate.
Specific embodiment
Concrete structure of the invention is referring to shown in accompanying drawing.Referring to shown in Fig. 1,2, self-control type oil well casing,
The hydraulic cylinder 4 of pull bar piston first and second including the two poles of the earth concatenation type, 9, be provided with the hydraulic stroke oil cylinder 25,12, liquid of accumulator 1,2
Press integrated commutator 19 and hydraulic oil pressure guiding pipe 24,13.The hydraulic cylinder 4,9 of pull bar piston first and second of the two poles of the earth concatenation type is
The working condition of pump drainage is staggered front to back, first hydraulic cylinder 4 is connected with the outside of second hydraulic cylinder 9 by cylinder body flange 17, and
And first and second be provided with gap bridge seal 7 between hydraulic cylinder, first hydraulic cylinder 4 is by drawing with the piston 3,20 of second hydraulic cylinder 9
Bar 5, the front and back end for forming first and second hydraulic cylinder 4,9 through the concatenation of gap bridge seal 7 is respectively provided with a hydraulic stroke oil cylinder respectively
25、12；First and second hydraulic cylinder 4,9 or so is respectively equipped with two-way crude oil into discharge opeing manifold (A, B) 23,18 and and Hydraulic integration
The AB on the top of commutator 19 enters outage and is connected, and hydraulic stroke oil cylinder 25,12 lower ends are respectively provided with hydraulic oil pressure guiding pipe all the way
24th, 13, the hydraulic oil pressure guiding pipe 24,13 is connected respectively at the two ends of Hydraulic integration commutator 19 and is connected in A types as shown in Figure 5
Hydraulic integration commutator, i.e. one end are hydraulic control one-way valve, and the other end is back-moving spring.The hydraulic oil pressure guiding pipe 24,13 is distinguished
It is connected in the two ends of Hydraulic integration commutator 19 and is connected in Type B Hydraulic integration commutator as shown in Figure 6, be i.e. two ends is hydraulic control list
To valve.Shown in Figure 3, the P mouthfuls of front end of incoming-stream manifold check valve 32 of Hydraulic integration commutator carries oily one end of nonyl 31 and well head
The oily nonyl of the front end of production discharge opeing gate 39 on production tree is connected, the discharge opeing manifold flange 29 of T mouthfuls of Hydraulic integration commutator with
Production production trunk line is connected.The air inlet ball-and-seat 34,35 of first and second hydraulic cylinder 4,9 and the front end of wellhead casing pipe gate 38
Hollow plug be connected, the exhaust ball-and-seat of first and second hydraulic cylinder is connected with T mouthfuls of discharge opeing manifold 30.
It is shown in Figure 4, it is another embodiment.Oil well when used for high back pressure main line is, it is described enter discharging tube with
When all installed in first hydraulic cylinder 4 front and rear cylinder body on, enter discharge opeing manifold A entrance liquid effects in first hydraulic cylinder piston 3
Front end, enters the liquid effects of discharge opeing manifold B entrance in the rear end of first hydraulic cylinder piston 3, is equally to intersect reciprocal operation, the second liquid
Cylinder pressure 9 is pure reciprocating air cylinder；The diameter with diameter greater than second hydraulic cylinder 9 of first hydraulic cylinder 4, constitutes first and second hydraulic cylinder
Variable-diameter structure.
The present invention drives device of the present invention using the discharge opeing hydraulic power of well mouth of oil well, and reciprocal operation, realizes back and forth
Oil well discharge opeing and apparatus of the present invention enter discharge opeing and exhaust compression function, reach oil gas with adopting, and complete what well casing gas were reclaimed
Purpose.
Shown in Figure 7, first group of P mouthfuls of incoming-stream manifold of Hydraulic integration commutator carries the inlet of one end of oily nonyl 31
Oily nonyl with the front end of production discharge opeing gate 39 on production tree is connected, and ball-and-seat is sequentially connected after the inlet of front end, described
This group of ball-and-seat of incoming-stream manifold is connected by flange with the front end P inlets of Hydraulic integration commutator, is changed in Hydraulic integration
The exhaust check valve and liquid of feed liquor overload protective device, first hydraulic cylinder and second hydraulic cylinder are provided with to the centre of the lower end base of device
The discharge opeing manifold of integrated commutator T mouthfuls of rear end is pressed to be connected.Enter discharge opeing manifold AB for oil well crude oil liquid in present apparatus Fig. 1,
Pressure guiding pipe described in Fig. 1 is pure hydraulic oil pressure guiding pipe, Hydraulic integration commutator set by the present apparatus or so end and hydraulic stroke
The piston nose of oil cylinder is pure hydraulic oil, and this hydraulic system is closed loop hydraulic system, with Hydraulic integration commutator front and back end
P inlets and T leakage fluid drams in crude oil be isolating seal state, hydraulic jack when compression travel is completed, piston nose
Hydraulic stroke oil cylinder can act completion compression conduction simultaneously.
Operation principle of the invention：
Described apparatus of the present invention are by the use of the hydraulic power of oil pumper upstroke discharge opeing as power source drive present apparatus concatenation type
Pull bar piston lower pressure cylinder is staggered front to back pump drainage and back and forth runs.The present apparatus carries the check valve manifold and wellhead tree tree of oily nonyl one end
Discharge opeing production gate at oily nonyl want to be connected as incoming-stream manifold, the flange of described present apparatus T mouthful of discharge opeing manifold tail end and
Production production trunk line is connected.When oil pumper is run to upstroke, oil well is in discharge opeing interval, and the liquid of oil well is by production
Gate enter present apparatus front end check valve manifold in by Hydraulic integration commutator P inlets enter this integrated commutator in,
Enter by the discharge opeing manifold A that enters for setting first, when liquid enters in first hydraulic cylinder cylinder body from discharge opeing manifold A is entered, liquid drives
Dynamic first hydraulic cylinder piston moves ahead, and at this moment the gas of first hydraulic cylinder piston nose is in compression exhaust state, in the first hydraulic pressure
While cylinder piston moves ahead, the piston in second hydraulic cylinder is also moving ahead simultaneously, and at this moment second hydraulic cylinder piston nose is in row
Liquid status, are entered in T mouthfuls of discharge opeing manifold by entering discharge opeing manifold B, and second hydraulic cylinder piston rear end is in air-suction state, first
Hydraulic cylinder enters discharge opeing manifold B discharge opeings, first hydraulic cylinder when being into discharge opeing manifold A feed liquors with the active operation mode of second hydraulic cylinder
In feed liquor exhaust, second hydraulic cylinder is in air inlet discharge opeing, the working condition that front and rear intersection is back and forth run.When first hydraulic cylinder is complete
During into compression travel, the hydraulic stroke oil cylinder of second hydraulic cylinder tail end realizes compression, when the hydraulic oil in hydraulic stroke oil cylinder is received
When compression, liquid energy is delivered on Hydraulic integration commutator by the impulse manifold of hydraulic oil, makes Hydraulic integration commutator fast
Speed completes the switching that AB enters outage, and the switching of second hydraulic cylinder B discharge opeings manifold is changed into feed liquor, and first hydraulic cylinder is entered into discharging tube
The A that converges switches to discharge opeing manifold, at this moment enters discharge opeing from what P mouthfuls of liquid come in of Hydraulic integration commutator was directly entered second hydraulic cylinder
In manifold B, entered in second hydraulic cylinder cylinder body by manifold, the piston in second hydraulic cylinder cylinder body is living under the driving of liquid
Plug reach operation to the left, at this moment the gas of second hydraulic cylinder piston nose is compressed, and gas is entered into T mouthfuls by exhaust check valve
Incoming-stream manifold in, into production trunk line, at this moment the liquid of first hydraulic cylinder front end is by entering discharge opeing manifold A by Hydraulic integration
The passage of commutator, enters liquid in the pipeline that enters the station from T mouthfuls, and the casing gas of first hydraulic cylinder piston rear end are drawn into again
In one hydraulic cylinder body.Back and forth operation will be into first hydraulic cylinder and second back and forth with second hydraulic cylinder for present apparatus first hydraulic cylinder
Casing gas in hydraulic cylinder are discharged into the T of the present apparatus mouthfuls of discharge opeing manifold together by intersecting compression back and forth, are mixed together with liquid
Close and enter in the defeated multi-purpose station to concentration of production trunk line, separation and recovery is utilized.Realize the present invention designed by oil pumper upstroke
The present apparatus is completed during discharge opeing enters discharge opeing, exhaust, and bidirectional crossed reciprocal operation, first hydraulic cylinder is wrong successively with second hydraulic cylinder
Dynamic switching, has reached oil gas with the automatic control function adopted, and realizes the purpose that oil well low pressure casing gas are reclaimed." autocontrol oil well casing
The operation principle of gas recovering device " is as shown in Figure 7.A, B are represented into leakage fluid dram, T and are represented discharge opeing, P generations in Hydraulic integration commutator
Table feed liquor.
Referring to the operation principle that Fig. 4 is another embodiment.It is essentially identical with the structure of Fig. 1.Difference is Type B
Incoming-stream manifold simultaneously all installed in first hydraulic cylinder front and rear cylinder body on, enter discharge opeing manifold A entrance liquid effects in first
Hydraulic cylinder piston front end, enters the liquid effects of discharge opeing manifold B entrance in first hydraulic cylinder piston rear end, is equally to intersect reciprocal fortune
OK, difference is that second hydraulic cylinder becomes pure reciprocating air cylinder, it is therefore an objective to the diameter of first hydraulic cylinder is become into big, the diameter of the second cylinder
Diminish, realize difference in areas.First hydraulic cylinder and the second cylinder reducing.For the oil well of high back pressure main line, make the present apparatus first
Hydraulic cylinder increases thrust, it is ensured that the pressure of P inlet leading portions does not increase, and can effectively ensure that P mouthfuls of leading portion other equipment is without prejudice,
The use of high back pressure oil well is can be suitably used for again.
Claims (3)
1. self-control type oil well casing, it is characterised in that the hydraulic pressure of pull bar piston first and second including the two poles of the earth concatenation type
Cylinder, the hydraulic stroke oil cylinder for being provided with accumulator, Hydraulic integration commutator and hydraulic oil pressure guiding pipe；The pull bar of the two poles of the earth concatenation type
The hydraulic cylinder of piston first and second is the working condition for being staggered front to back pump drainage, and first hydraulic cylinder passes through cylinder with the outside of second hydraulic cylinder
Body flange is connected, and is provided with gap bridge seal, first hydraulic cylinder and second hydraulic cylinder between first and second cylinder hydraulic cylinder
Piston be by pull bar through gap bridge seal concatenate form；The front and back end of first and second hydraulic cylinder is respectively provided with a liquid respectively
Pressure stroke oil cylinder；First and second hydraulic cylinder front and back end be respectively equipped with two-way crude oil enter discharge opeing manifold AB and with Hydraulic integration commutator
The AB on top enter outage and be connected, first hydraulic cylinder with the active operation mode of second hydraulic cylinder is entered into discharge opeing manifold A
Enter discharge opeing manifold B discharge opeings during liquid, enter discharge opeing manifold B feed liquors and enter discharge opeing manifold A discharge opeings；Hydraulic oil in hydraulic stroke oil cylinder is pressurized
During contracting, by the hydraulic oil pressure guiding pipe all the way being each provided with, the hydraulic oil pressure guiding pipe for passing it to Hydraulic integration commutator connects
End is connect, P mouthfuls of incoming-stream manifold check valve front end of Hydraulic integration commutator carries oily nonyl one end and arranged with the production on wellhead tree tree
The oily nonyl of liquid gate front end is connected, and the discharge opeing manifold flange of T mouthfuls of Hydraulic integration commutator is connected with production production trunk line；Institute
The air inlet ball-and-seat for stating first and second hydraulic cylinder is connected with the hollow plug of wellhead casing pipe gate front end, first and second hydraulic pressure
The exhaust ball-and-seat of cylinder is connected with T mouthfuls of discharge opeing manifold；Hydraulic oil manifold and the hydraulic stroke oil of the Hydraulic integration commutator
Pure hydraulic oil is in the piston nose of cylinder, the hydraulic system of the self-control type oil well casing is closed loop hydraulic pressure
System；Crude oil in the P inlets and T leakage fluid drams of the Hydraulic integration commutator front and back end of the hydraulic system is isolating seal shape
State；The P inlets of the Hydraulic integration commutator are the liquid entry end of oil well when oil well is in discharge opeing interval, now enter discharge opeing
Manifold A is connected with P inlets, and first hydraulic cylinder piston moves ahead, and second hydraulic cylinder piston nose is in discharge opeing state, by entering row
Liquid pipe converge B the liquid of second hydraulic cylinder piston nose is entered in T mouthfuls of discharge opeing manifold, second hydraulic cylinder piston rear end be in into
Gaseity；When first hydraulic cylinder completes compression travel, the hydraulic stroke oil cylinder of second hydraulic cylinder tail end realizes compression, works as hydraulic pressure
When hydraulic oil in stroke oil cylinder is compressed, liquid energy is delivered on Hydraulic integration commutator by hydraulic oil impulse manifold,
Hydraulic integration commutator is quickly completed the switching for entering outage into discharge opeing manifold AB, will second hydraulic cylinder enter discharge opeing manifold B
Switching is changed to feed liquor, and first hydraulic cylinder is entered into discharge opeing manifold A switches to discharge opeing, at this moment comes in from P mouthfuls of Hydraulic integration commutator
Liquid is directly entered the entering in discharge opeing manifold B of second hydraulic cylinder, by entering discharge opeing manifold B into second hydraulic cylinder cylinder body, the
The gas of two hydraulic cylinder piston front ends is compressed, and is entered gas in T mouthfuls of discharge opeing manifold by exhaust check valve, into oil transportation
Main line, the liquid of first hydraulic cylinder front end by entering passages of the discharge opeing manifold A by Hydraulic integration commutator, from T mouthfuls liquid
Enter in the pipeline that enters the station, the casing gas of first hydraulic cylinder piston rear end are drawn into first hydraulic cylinder cylinder body again.
2. self-control type oil well casing according to claim 1, it is characterised in that when used for high back pressure main line
Oil well when, it is described enter discharge opeing manifold AB and meanwhile all installed in first hydraulic cylinder front and rear cylinder body on, enter discharge opeing manifold A entrance
Liquid effects enter the liquid effects of discharge opeing manifold B entrance in first hydraulic cylinder piston rear end, together in first hydraulic cylinder piston nose
Sample is to intersect reciprocal operation, and second hydraulic cylinder is pure reciprocating air cylinder；The diameter with diameter greater than second hydraulic cylinder of first hydraulic cylinder,
Constitute the variable-diameter structure of first and second hydraulic cylinder.
3. self-control type oil well casing according to claim 1, it is characterised in that the Hydraulic integration commutation
Two hydraulic oil pressure guiding pipe connection ends of device, or it is hydraulic control one-way valve attachment structure；Or one end is hydraulic control one-way valve, the other end
It is back-moving spring attachment structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344801.4A CN104929586B (en) | 2015-06-19 | 2015-06-19 | Self-control type oil well casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344801.4A CN104929586B (en) | 2015-06-19 | 2015-06-19 | Self-control type oil well casing |
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| CN104929586B true CN104929586B (en) | 2017-06-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178919B (en) * | 2015-10-09 | 2018-01-19 | 檀长江 | Self-control type oil well casing |
| CN108825172B (en) * | 2018-08-29 | 2023-07-25 | 蚌埠市新达压缩机制造有限公司 | Unpowered sleeve gas recovery device |
| CN110593821A (en) * | 2019-09-23 | 2019-12-20 | 孙支林 | Oil well pressure boost gas collection and medicine integrated device |
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
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| US5132904A (en) * | 1990-03-07 | 1992-07-21 | Lamp Lawrence R | Remote well head controller with secure communications port |
| CN203081409U (en) * | 2013-02-20 | 2013-07-24 | 张军 | Auto-control oil well casing gas recovery device |
| CN203374255U (en) * | 2013-07-29 | 2014-01-01 | 檀长江 | Liquid control type oil well sleeve pipe gas recovery device |
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN204754884U (en) * | 2015-06-19 | 2015-11-11 | 檀长江 | Automatic control formula oil well sleeve pipe gas recovery unit |
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2015
- 2015-06-19 CN CN201510344801.4A patent/CN104929586B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132904A (en) * | 1990-03-07 | 1992-07-21 | Lamp Lawrence R | Remote well head controller with secure communications port |
| CN203081409U (en) * | 2013-02-20 | 2013-07-24 | 张军 | Auto-control oil well casing gas recovery device |
| CN203374255U (en) * | 2013-07-29 | 2014-01-01 | 檀长江 | Liquid control type oil well sleeve pipe gas recovery device |
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN204754884U (en) * | 2015-06-19 | 2015-11-11 | 檀长江 | Automatic control formula oil well sleeve pipe gas recovery unit |
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