CN110318711A - A kind of fluid-discharge method and device of the oil/gas well of low yield containing liquid - Google Patents
A kind of fluid-discharge method and device of the oil/gas well of low yield containing liquid Download PDFInfo
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- CN110318711A CN110318711A CN201910622444.1A CN201910622444A CN110318711A CN 110318711 A CN110318711 A CN 110318711A CN 201910622444 A CN201910622444 A CN 201910622444A CN 110318711 A CN110318711 A CN 110318711A
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- 239000007788 liquid Substances 0.000 title claims abstract description 690
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 611
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 328
- 238000003860 storage Methods 0.000 claims abstract description 179
- 238000007789 sealing Methods 0.000 claims abstract description 169
- 239000003345 natural gas Substances 0.000 claims abstract description 166
- 239000012530 fluid Substances 0.000 claims abstract description 96
- 230000008676 import Effects 0.000 claims abstract description 77
- 241000191291 Abies alba Species 0.000 claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 claims abstract description 46
- 238000005086 pumping Methods 0.000 claims abstract description 43
- 241000521257 Hydrops Species 0.000 claims abstract description 28
- 206010030113 Oedema Diseases 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 39
- 239000003595 mist Substances 0.000 claims description 13
- 230000009467 reduction Effects 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 230000000740 bleeding effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000013022 venting Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003129 oil well Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000001914 calming effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 239000002343 natural gas well Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000005514 two-phase flow Effects 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from 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
- E21B43/34—Arrangements for separating materials produced by the well
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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)
- Jet Pumps And Other Pumps (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention belongs to natural gas in oil and gas fields production technique fields, in particular to a kind of fluid-discharge method of oil/gas well containing liquid and device, a kind of pumping equipment of oil/gas well of low yield containing liquid of proposition, pumping equipment are arranged on the connecting line between well head christmas tree and gas gathering station gathering line；Pumping equipment has knockout drum；It is provided with liquid in knockout drum, and the inner cavity of knockout drum is divided into gas and oil chamber and fluid chamber by the liquid level of liquid；The oil and gas import of gas and oil chamber is communicated with gas production general pipeline；Gas production general pipeline is connected with well head christmas tree；The liquid outlet I of fluid chamber is connected to the liquid storage chamber of gas-liquid sealing chamber；Knockout drum corresponds to gas and oil chamber and is additionally provided with oil gas by-pass port；Oil gas by-pass port is connected to delivery main；The present invention carries out Oil-gas Separation dispatch control to the well shaft inner product liquid of oil gas containing liquid on well；It ensure that natural gas carries underground hydrops ability in oil gas well shaft.
Description
Technology leads city
The invention belongs to natural gas in oil and gas fields production technique field, in particular to a kind of the method and dress of the drain of oil/gas well containing liquid
It sets, can be used for the natural gas oil/gas well drain of low yield containing liquid, can also be applied to natural gas low-voltage and low-yield well production increment, while from city
Field application aspect, which can be promoted, recycles natural gas for the oil well containing natural gas.
Background technique
Field is exploited in natural gas in oil and gas fields, main method is to produce oil gas by down-hole pressure self-spray at present；Such as this skill
Well known to art field, inevitably there is condensate and water in oil/gas well underground, and production process is gas liquid two-phase flow form.?
Oil/gas well producing initial stage, the pressure of natural gas is high in oil gas well shaft, flow velocity is big, and a large amount of condensate and water are natural in pit shaft
Gas is carried on well, and under the effect of well head high pressure, natural gas carries condensate and water enters gathering line and is transported to gas gathering station；
Oil/gas well production latter stage is arrived, strata pressure decline makes that the pressure of natural gas in oil gas well shaft is low, flow velocity is small, oil gas well shaft
Middle gas carries underground condensate and the ability of water gradually decreases, and a part of condensate and water are carried to well by natural gas in pit shaft
On, by the condensate that natural gas is carried on well and the resistance of ducting that water generates in gathering line, cause conveyance conduit to collection
Conveying capacity decline in gas station further reduces natural gas flow velocity in oil gas well shaft, and another part condensate and water is made to hang down
Deposition forms hydrops in straight well cylinder, and hydrops gradually increases in pit shaft to be made oil and gas wellhead pressure persistently and reduces as stripper well, when
When oil and gas wellhead discharge pressure is lower than gas gathering station gathering line pressure is entered, oil/gas well will be unable to normally produce, this phenomenon system
The about sustainable development of oil/gas well.In order to mention the drainage capacity of containing large amount of liquid low yield oil/gas well, propose both at home and abroad a variety of inventions and
Using new technique and the boosting of long-term closing well, short-term opening well and making production method is combined to apply on the gas in natural gas well of low yield containing liquid.
In existing patent, " a kind of underground throttle device " (application number 201610511843.7) is this using launching to underground
The method of flow controller prevents from forming Hydrate Plugging in pit shaft, achievees the purpose that the self-produced tolerance for improving oil/gas well；" one kind is solidifying
The method of calymma foam and micro emulsion combined application oil well production increasing in situ " (application number 201810378287.X) be to inject to steep into oil well
The method of foam reduces its density after the hydrops of underground is emulsified, specific gravity reduction, hydrops is released by the air pressure of underground, is mentioned
The self-produced tolerance of high oil well and the water yield that can be reduced oil well；" low pressure oil/gas well closed gaslift drain combined string " (application number
201320671613.9) it is to be equipped by being put into underground, the characteristics of using ball-and-seat one-way flow, makes underground long range hydrops
Hydrops is avoided as segment obstruction, guarantees the self-produced tolerance of oil/gas well by the method that hydrops is released in the air pressure of underground；" intelligence
Formula gas well mining increasing device " (application number 201510476076.6) will be blended in the mining water system of the natural gas well
Natural gas in mining water is separated, and is input in flowline, prevents natural gas from entering atmosphere, improves adopting for oil well
Oil mass.
While proposing the gas in natural gas of low yield containing liquid well fluid-discharge method, " oil well fishing device " (application number
201721239906.4) method that object is launched in underground of salvaging is proposed, for preventing missile when safeguarding underground missile
Structure body is detached from during being salvaged and above mentioning and falls shaft bottom, to improve the working efficiency for salvaging underground missile.
It can be seen that oil gas well shaft inner product is discharged by launching object or medium in the Wellbore of Gas Wells of low oil production containing liquid
The technology of liquid is unfavorable for due to dispensing device is at high cost, it is high to launch medium pollution, launch complex process, maintenance is constant etc.
It promotes and applies.
Summary of the invention
In order to solve problem above, the purpose of the present invention is to propose to the methods and dress of a kind of oil/gas well of low yield containing liquid drain
It sets, can guarantee that natural gas carries underground hydrops ability in oil gas well shaft, carries out the hydrops being carried on oil/gas well well
Separation is displaced into gas gathering station gathering line, completes the oil/gas well drain of low yield containing liquid and low yield well production increment, safe and reliable, ring
It protects, energy conservation, be easy implementation, be easy to maintain, is conducive to promote.
The present invention completes its invention task by the following technical programs:
A kind of pumping equipment of the oil/gas well of low yield containing liquid, pumping equipment are arranged between well head christmas tree and gas gathering station gathering line
Connecting line on；The pumping equipment has knockout drum；Liquid is provided in the knockout drum, and by institute
The inner cavity of knockout drum is divided into gas and oil chamber and fluid chamber by the liquid level for stating liquid；The oil gas of gas and oil chamber described in knockout drum
Inlet communication has gas production general pipeline；The gas production general pipeline is connected with the well head christmas tree；Liquid described in knockout drum
The liquid outlet I of chamber is connected to the liquid storage chamber of gas-liquid sealing chamber, and is arranged between the liquid outlet I and the liquid storage chamber
Pneumatic control shut-off valve and check valve I；The corresponding gas and oil chamber of knockout drum is additionally provided with oil gas by-pass port；The oil
Gas by-pass port is connected to delivery main；The oil gas chamber of the oil gas vent connection gas-liquid sealing chamber of gas and oil chamber described in knockout drum；
Pure air cavity, oil gas chamber and liquid storage chamber are divided into inside the gas-liquid sealing chamber from top to bottom；Pure air cavity and oil gas chamber
Between using mist eliminator be isolated, oil gas chamber is to seal against each other two cavitys being isolated with liquid storage chamber；
The pure air cavity circumference is equipped with gas outlet I and evacuation port II；The gas outlet I is connected to the pumping of voltage indicating device
Mouthful, the gas outlet II of voltage indicating device is connected to the air inlet II of cooler by high-pressure air pipe, and the gas outlet III of cooler connects
To delivery main；The oil gas chamber circumference is equipped with air inlet I, low pressure port and installing port I, and the air inlet I is connected to
To the oil gas vent of knockout drum；The low pressure port is connected on the outlet B of pneumatic control triple valve；The liquid storage
There is inlet, high pressure port, liquid outlet II and installing port II on chamber circumference；Inlet passes through pipeline and check valve, pneumatic control
Shut-off valve processed is connected to the liquid outlet I of knockout drum, and high pressure port is connected to the air inlet A of pneumatic control triple valve, described
Liquid outlet II be connected to delivery main；It is interconnected between the installing port I of the oil gas chamber and the installing port II of liquid storage chamber；
Pumping equipment is additionally provided with high pressure gas holder；The high pressure gas holder is circumferentially equipped with air inlet III, control port, outlet
Mouth IV and charge and discharge mouth；The air inlet III is connected to the gas outlet III of cooler, and control port is divided into three by controlling tracheae
Pipeline: pipeline I is connected to the fluid level control valve I being mounted in liquid storage chamber described in gas-liquid sealing chamber, again by fluid level control valve I
It is connected to the pneumatic control mouth K of pneumatic control triple valve, pipeline II is connected to the commutation mouth C of pneumatic control triple valve, pipeline III
It is connected on the fluid level control valve II being mounted on knockout drum, pneumatic control cut-off is connected to by fluid level control valve II
The pneumatic control mouth S of valve；Gas outlet IV is connected to the gas cut-off valve on natural gas engine；Charge and discharge mouth connecting gas transmission pipe road；
The high pressure port of the import A connection gas-liquid sealing chamber of pneumatic control triple valve；The fluid level control valve I is in gas-liquid sealing chamber institute
State liquid storage intracavity liquid liquid level it is high when conducting from the high pressure gas of high pressure gas holder control port pass through control tracheae
Pipeline I, fluid level control valve I act on pneumatic control triple valve pneumatic control mouth K, make the import A of pneumatic control triple valve and change
It is connected to mouth C, fluid level control valve ends when the liquid level of gas-liquid sealing chamber liquid storage chamber is low, and pneumatic control triple valve is pneumatically controlled
Donsole K, which loses high pressure effect gas, makes import A and outlet B conducting；Liquid level of the fluid level control valve II in knockout drum is low
When end；Liquid in knockout drum is in the control of fluid level control valve II and tank under gas pressure effect, in batches to storage
The dispatch of sap cavity and liquid storage intracavity liquid, which are divided into, is repeatedly displaced into delivery main；
There are import A, outlet B and pneumatic control mouth S on pneumatic control shut-off valve；The import A passes through piping connection to gas-liquid
The liquid outlet of knockout drum, outlet B are connected by check valve with the inlet of gas-liquid sealing chamber；Pneumatic control mouth S drain dress
The pipeline III for setting control port is connected；The pneumatic control mouth S of pneumatic control shut-off valve, which loses high pressure effect gas, to be made import A and goes out
Mouth B cut-off.
The oil gas by-pass port is connected to delivery main by check valve II, hand stop valve I and air delivering pipeline.
Evacuation port I is provided at the top of the knockout drum, bottom is provided with sewage draining exit.
Check valve III is provided between cooler gas outlet and delivery main, for guaranteeing gas or liquid in delivery main
Body cannot be flow backwards into cooler gas outlet.
Check valve V is installed, for guaranteeing the natural gas in delivery main after liquid storage chamber liquid outlet described in gas-liquid sealing chamber
It cannot flow backwards with liquid into gas-liquid sealing chamber liquid storage chamber.
A kind of fluid-discharge method of the oil/gas well of low yield containing liquid, the gas production general pipeline connect with well head christmas tree, delivery main
After connecting with gas gathering station gathering line, the pumping equipment is from the well head christmas tree of oil/gas well containing liquid to gas gathering station gathering line
Dispatch process carries out Oil-gas Separation dispatch control to the well shaft inner product liquid of oil gas containing liquid on well, takes out to low yield oil/gas well
Pressure volume increase conveying control, completes the oil/gas well drain of low yield containing liquid and low yield well production increment；The specific method is as follows:
The knockout drum is separated for collecting and separating the more hydrops being carried on well by natural gas in oil gas well shaft
Natural gas afterwards is transported to delivery main by knockout drum, and the more hydrops being carried on oil/gas well well pass through knockout drum
It is displaced into gas-liquid sealing chamber in batches, is divided into through gas-liquid sealing chamber and is repeatedly displaced into delivery main, with the day entered in delivery main
Right gas carrying is displaced into gas gathering station gathering line；After gas production general pipeline is connect with well head christmas tree, knockout drum oil gas entrance is logical
Cross gas production general pipeline, well head christmas tree is connected to the well shaft of oil gas containing liquid；When oil and gas wellhead christmas tree discharge pressure is higher than gas gathering station
When gathering line pressure, hand stop valve I is opened, the gas-liquid mixture of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption is logical
The oil gas entrance for crossing christmas tree, gas production general pipeline and knockout drum enters in tank；The fluid storage isolated through knockout drum
In tank bottom, the oil/gas well high-pressure natural gas isolated through knockout drum enters check valve by knockout drum, air delivering pipeline
Delivery main after III is transported to gas gathering station gathering line, completes the well head of oil/gas well containing liquid christmas tree discharge pressure and is higher than gas gathering station
Natural gas production work is conveyed when gathering line pressure；It is defeated in the oil gas by-pass port of oil/gas well high-pressure natural gas from knockout drum
It is sent to delivery main's process, opens hand stop valve II, high-pressure natural gas passes through knockout drum oil gas by-pass port, check valve
II, hand stop valve I, air delivering pipeline, hand stop valve II enter high pressure gas holder from high pressure gas holder charge and discharge mouth, from high pressure gas holder control
Port processed is divided into the outside conveying high-pressure gas of three pipelines by controlling tracheae: being transported to by pipeline I and is mounted on gas-liquid isolation
Fluid level control valve I in tank liquid storage chamber is transported to the commutation mouth C of pneumatic control triple valve by pipeline II, defeated by pipeline III
It is sent to the fluid level control valve II being mounted on knockout drum；When knockout drum be stored in tank bottom liquid level it is high when, installation
Fluid level control valve II on knockout drum is connected, from the high pressure gas of high pressure gas holder control port, by controlling gas
Pipe pipeline III, fluid level control valve II act on the pneumatic control mouth S of pneumatic control shut-off valve, make pneumatic control shut-off valve import A
With outlet B conducting, knockout drum liquid under gas pressure effect, passes through knockout drum liquid outlet, pneumatic control in tank
Shut-off valve import A processed and outlet B, check valve I are displaced into gas-liquid sealing chamber liquid storage chamber from gas-liquid sealing chamber inlet；When gas-liquid every
When high from tank liquid storage chamber liquid level, the fluid level control valve I being mounted in gas-liquid sealing chamber liquid storage chamber is connected, from high pressure gas
Tank controls the high pressure gas of port, acts on pneumatic control triple valve by control tracheae pipeline I, fluid level control valve I and pneumatically controls
Donsole K passes through pneumatic control threeway import A and commutation mouth C conducting from the high pressure gas of high pressure gas holder control port
Control tracheae pipeline II, pneumatic control triple valve commutation mouth C and import A enter gas-liquid sealing chamber liquid storage chamber, gas-liquid sealing chamber
Liquid storage chamber liquid under high-pressure gas pressure effect, passes through pipe from gas-liquid sealing chamber liquid storage chamber liquid outlet in control tracheae pipeline II
Road and check valve V 25 are displaced into the delivery main after check valve III；It is mounted between the interface of oil gas chamber and the interface of liquid storage chamber
Check valve IV, for guaranteeing that the high pressure gas in gas-liquid sealing chamber liquid storage chamber cannot be flow backwards into gas-liquid sealing chamber oil gas chamber；
Check valve I is for during guaranteeing pneumatic control shut-off valve import A and outlet B conducting, and the liquid storage chamber liquid of gas-liquid sealing chamber is to defeated
Sending cannot flow backwards when general pipeline dispatch into knockout drum；When knockout drum be stored in tank bottom liquid level it is low when, be mounted on
Fluid level control valve II on knockout drum ends, and gas is not in the pipeline III of high pressure gas holder control port control tracheae
The pneumatic control mouth S that pneumatic control shut-off valve can be entered by fluid level control valve II, makes pneumatic control shut-off valve import A and outlet
B cut-off, the liquid outlet of knockout drum are no longer connected to the inlet of gas-liquid sealing chamber liquid storage chamber, ensure that in knockout drum
Natural gas cannot enter gas-liquid sealing chamber liquid storage chamber；When the liquid discharge in the liquid storage chamber of gas-liquid sealing chamber to delivery main
Afterwards, the liquid level in the liquid storage chamber of gas-liquid sealing chamber reduces, and makes the fluid level control valve I being mounted in gas-liquid sealing chamber liquid storage chamber
Cut-off, gas cannot be entered pneumatic by fluid level control valve I in the pipeline I of the control tracheae of high pressure gas holder control port
Triple valve pneumatic control mouth K is controlled, makes pneumatic control triple valve import A and commutation mouth C cut-off, commutates as pneumatic control triple valve
Import A and outlet B conducting, control high pressure gas in the pipeline II of tracheae and no longer pass through and pneumatic control triple valve import A and change
Enter the liquid storage chamber of gas-liquid sealing chamber to mouth C, the high pressure gas saved in the liquid storage chamber of gas-liquid sealing chamber passes through high pressure port, gas
Dynamic control triple valve import A and outlet B is released to the oil gas chamber low pressure port of gas-liquid sealing chamber, makes in gas-liquid sealing chamber liquid storage chamber
Pressure reduction, when liquid storage chamber pressure be lower than gas-liquid separation pressure inside the tank after, the liquid of knockout drum is in fluid level control valve
In II control and tank under gas pressure effect, it is displaced into the liquid storage chamber of gas-liquid sealing chamber again, until the liquid of knockout drum
The not high rear pause drain work of liquid level in the liquid storage chamber of body and gas-liquid sealing chamber, completes the liquid point of knockout drum
The liquid for criticizing the liquid storage chamber of the dispatch and gas-liquid sealing chamber to the liquid storage chamber of gas-liquid sealing chamber, which is divided into, is repeatedly displaced into delivery main；
Into the liquid of delivery main, the dispatch in the case where the natural gas for entering delivery main from knockout drum oil gas by-pass port carries
To gas gathering station gathering line, discharge pressure in gas gathering station gathering line is reduced, guarantees that natural gas carries well in oil gas well shaft
Lower hydrops ability has reached the well shaft inner product liquid of oil gas containing liquid and has carried out Oil-gas Separation dispatch control purpose on well；It opens manually
The hand stop valve of the sewage draining exit connection of knockout drum arranges the liquid of knockout drum using gas pressure effect in tank
It is sent to fortune liquid vehicle, in order to artificially collecting for liquid；The evacuation port of knockout drum is connected with high pressure exhaust-valve, for protecting gas
The safety of liquid knockout drum；The evacuation port of the pure air cavity of gas-liquid sealing chamber is connected with low pressure exhaust-valve, for protecting gas-liquid sealing chamber
Safety；Decompression venting valve is installed, for guaranteeing needed for natural gas engine operation between natural gas engine and high pressure gas holder
The stabilization of fuel；
When oil and gas wellhead christmas tree discharge pressure is lower than gas gathering station gathering line pressure, oil and gas wellhead christmas tree natural gas cannot
Enter delivery main by knockout drum and is transported to gas gathering station gathering line, the list after being mounted on the liquid outlet of knockout drum
To valve II, for guaranteeing that natural gas in delivery main and liquid cannot be flow backwards into liquid knockout drum；In order to realize to low oil production
Gas well carries out taking out pressure volume increase conveying control, opens hand stop valve II at this time, the natural gas in delivery main by air delivering pipeline,
Hand stop valve II is inflated from high pressure gas holder charge and discharge mouth to high pressure gas holder, is used to be natural gas into the natural gas in high pressure gas holder
Engine provides starting fuel；High pressure gas holder closes hand stop valve II after being full of, and starting natural gas engine operation makes to take out pressure
Device work, under the continuous pumping pressure effect of voltage indicating device, the pure natural gas of the pure air cavity of gas-liquid sealing chamber by gas outlet,
Low-pressure air pipe enters the bleeding point of voltage indicating device, and is discharged from gas outlet, makes in the pure air cavity of gas-liquid sealing chamber natural gas immediately
It reduces, the natural gas of oil gas chamber is supplemented to pure air cavity immediately, and the intracavitary natural gas of oil gas is made to follow reduction, the day in knockout drum
After oil gas vent, pressure reducing valve, gas-liquid sealing chamber air inlet are supplemented to oil gas chamber, natural gas follows in knockout drum subtracts right gas
Few, the gas-liquid mixture of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption is carried on oil/gas well, by christmas tree, is adopted
Gas general pipeline and knockout drum oil gas entrance are supplemented to knockout drum, isolate liquid into knockout drum and low pressure is natural
Gas, after low pressure natural gas reduces pressure by pipeline and pressure reducing valve from oil gas vent, from gas-liquid sealing chamber oil gas chamber air inlet into
Enter gas-liquid sealing chamber oil gas chamber, the natural gas containing mist of oil is separated into liquid and low by mist eliminator between pure air cavity and oil gas chamber
Press natural gas；Liquid enters liquid storage chamber=storage of gas-liquid sealing chamber by check valve IV, carries the fog-like liquid in natural gas
Mist material of being caught separates the bottom for falling into oil gas chamber, and pure low pressure natural gas enters the pure air cavity of gas-liquid sealing chamber, and
The bleeding point for entering voltage indicating device by gas outlet, low-pressure air pipe ensure that the trouble free service of voltage indicating device, take out in voltage indicating device
Under pressure effect, the high temperature and pressure natural gas of gas gathering station gathering line pressure is higher than from the gas outlet output pressure of voltage indicating device, is led to
The air inlet that high-pressure air pipe enters cooler is crossed, after being cooled to high pressure low temperature natural gas by cooler, from the outlet of cooler
Mouth is transported to gas gathering station gathering line after entering delivery main；Through cooler a small amount of high pressure low temperature natural gas after cooling, pass through
Air inlet after pressure maintaining valve pressure stabilizing through high pressure gas holder constantly enters high pressure gas holder, and the gas outlet through high pressure gas holder is by pipeline and subtracts
Fuel needed for becoming natural gas engine continuous operation after pressure pressure maintaining valve, makes natural gas engine not by oil and gas wellhead christmas tree
Well head pressure variation influences, and ensure that the continuous pumping pressure natural gas volume increase work of voltage indicating device；Into the natural gas of high pressure gas holder
Also it is divided into the outside conveying high-pressure gas of three pipelines from the control port of high pressure gas holder by controlling tracheae: is conveyed by pipeline I
To fluid level control valve I, pneumatic control triple valve commutation mouth C is transported to by pipeline II, Liquid level is transported to by pipeline III
Valve II；When knockout drum be stored in tank bottom liquid level it is high when, fluid level control valve II be connected, from high pressure gas holder control gas
The high pressure gas of mouth, acts on pneumatic control shut-off valve pneumatic control mouth S by pipeline III, fluid level control valve II, makes pneumatically to control
Shut-off valve import A processed and outlet B conducting, the liquid of knockout drum under gas pressure effect, pass through gas-liquid separation in tank
The liquid outlet of tank, pneumatic control shut-off valve import A and outlet B, check valve I from the inlet of gas-liquid sealing chamber be displaced into gas-liquid every
Liquid storage chamber from tank is mounted in gas-liquid sealing chamber liquid storage chamber when the liquid level in the liquid storage chamber of gas-liquid sealing chamber is high
Fluid level control valve I is connected, and from the high pressure gas of high pressure gas holder control port, is acted on by pipeline I, fluid level control valve I
The pneumatic control mouth K of pneumatic control triple valve makes import A and the commutation mouth C conducting of pneumatic control triple valve, from high pressure gas
The high pressure gas of the control port of tank, enters liquid storage chamber by pipeline II, the commutation mouth C of pneumatic control triple valve and import A, stores up
Liquid in sap cavity under high-pressure gas pressure effect, is displaced into delivery main from the liquid outlet of liquid storage chamber in pipeline II；
When knockout drum be stored in the liquid level in tank bottom it is low when, fluid level control valve II ends, and gas is not in Lai Guanlu III
Pneumatic control shut-off valve pneumatic control mouth S can be entered by fluid level control valve II, make pneumatic control shut-off valve import A and outlet B
Cut-off, the liquid outlet of knockout drum are no longer connected to the inlet of liquid storage chamber 8U, ensure that the natural gas in knockout drum
Gas-liquid sealing chamber liquid storage chamber cannot be entered；Liquid liquid after the liquid discharge in liquid storage chamber is to delivery main, in liquid storage chamber
Potential drop is low, ends fluid level control valve I, cannot enter pneumatic control triple valve by fluid level control valve I from gas in pipeline I
Pneumatic control mouth, make pneumatic control triple valve mouth A and commutation mouth C cut-off, commutate for pneumatic control triple valve import A and go out
Mouth B is connected, and high pressure gas no longer passes through pneumatic control triple valve import A in pipeline II and commutation mouth C enters liquid storage chamber, liquid storage chamber
The high pressure gas of interior preservation is released to the low pressure of oil gas chamber by high pressure port, the import A of pneumatic control triple valve and outlet B
Port makes the pressure reduction in liquid storage chamber, after the pressure of liquid storage chamber is lower than gas-liquid separation pressure inside the tank, in knockout drum
Liquid under gas pressure effect, is displaced into liquid storage chamber, until gas-liquid separation in the control of fluid level control valve II and tank again
Pause drain work after the liquid level in liquid and liquid storage chamber in tank is high, complete in knockout drum liquid batch to
The dispatch of liquid storage chamber and liquid storage intracavity liquid, which are divided into, is repeatedly displaced into delivery main；Into the liquid of delivery main, from
It is taken under voltage indicating device pumping pressure effect, through the high pressure low temperature natural gas that cooler enters delivery main through check valve III after cooling
Leukorrhagia is displaced into gas gathering station gathering line, reduces discharge pressure in gas gathering station gathering line, guarantees natural in oil gas well shaft
Gas carries underground hydrops ability, realizes and carries out taking out pressure volume increase conveying control and the well shaft inner product of oil gas containing liquid to low yield oil/gas well
Liquid carries out Oil-gas Separation dispatch control on well, and the gas-liquid mixture of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption is not by
It is disconnected to be carried on oil/gas well, the deposition of the well shaft inner product liquid of oil gas containing liquid is removed, makes the underground of oil/gas well containing liquid without liquid
Obstruction, the pumping pressure of low yield oil/gas well increases when realizing the discharge pressure of oil and gas wellhead christmas tree lower than gas gathering station gathering line pressure
Produce function.
One kind well fluid-discharge method of gas in natural gas containing liquid and pumping equipment proposed by the present invention have the following characteristics that
1) Oil-gas Separation dispatch control is carried out on well to the well shaft inner product liquid of oil gas containing liquid；2) pumping pressure is carried out to low yield oil/gas well
Volume increase conveying control；3) make the multiple dispatch of automatic batching after more hydrops separate on well in the well shaft of oil gas containing liquid, reduce gas collection
It stands gathering line discharge pressure, guarantees that natural gas carries underground hydrops ability in oil gas well shaft；4) high temperature after voltage indicating device
High-pressure natural gas is cooled to high pressure low temperature natural gas transportation；5) natural gas engine is protected not by oil and gas wellhead pressure variations influence
The continuous pumping pressure volume increase work of voltage indicating device is demonstrate,proved；6) pure natural gas enters voltage indicating device, ensure that the safety of voltage indicating device
Work；7) utilize gas pressure that liquid discharge to fortune liquid vehicle, is artificially collected convenient for liquid；In addition, the present invention can promote use
Natural gas is recycled in the oil well containing natural gas.
Detailed description of the invention
Fig. 1 is system flow chart of the invention.
In figure: 1, hydrops；2, natural gas；3, well head christmas tree；4, gas production general pipeline；5, knockout drum, 5Y, liquid；5a,
Oil gas entrance；5b, oil gas vent；5c, oil gas by-pass port；5d, sewage draining exit；5h, liquid outlet I；5f, evacuation port I；6, pressure reducing valve；
7, check valve IV；8, gas-liquid sealing chamber (includes: oil gas chamber 8W；Liquid storage chamber 8U；Pure air cavity 8G；Liquid 8Y；I 8a of air inlet；Out
I 8b of port；Inlet 8c；High pressure port 8d；II 8h of liquid outlet；Low pressure port 8i；II 8f of evacuation port；I 8m of installing port；Installing port
II 8n)；9, low-pressure air pipe；10, voltage indicating device (includes: bleeding point 10a；II 10b of gas outlet)；11, high-pressure air pipe；12, cold
But device (including: II 12a of air inlet, III 12b of gas outlet)；13, check valve III；14, delivery main；15, pressure regulator valve；16, high
Tank of calming the anger (includes: III 16a of air inlet；Control port 16b；IV 16c of gas outlet；Charge and discharge mouth 16d)；17, voltage-regulation voltage-stabilization valve；
18, natural gas engine (including: gas cut-off valve)；19, tracheae is controlled；20, fluid level control valve；21, pneumatic control threeway
Valve；22, fluid level control valve；23, pneumatic control shut-off valve；24, check valve I；25, check valve V；26, check valve II；27, manually
Shut-off valve I；28, air delivering pipeline；29, hand stop valve II；30, hand stop valve III；31, high pressure exhaust-valve；32, low pressure empties
Valve；33, gas gathering station gathering line, 34, pipeline I；35, pipeline II；36, pipeline III.
Specific embodiment
The present invention carries out specifically the contents of the present invention with the manufacturing parameter application example of a mouth containing liquid low yield oil/gas well
It is bright；
The present invention disconnects the connecting line between well head christmas tree 3 and gas gathering station gathering line 33 in oil and gas wellhead production scene,
This oil/gas well drain of low yield containing liquid of installation and increasing device, connect the gas production general pipeline 4 of the present apparatus with well head christmas tree 3, convey
General pipeline 14 is connect with gas gathering station gathering line 33；The gas production general pipeline 4 is the entrance of this pumping equipment, the delivery main
14 be the outlet of the present apparatus；The gas production general pipeline 4 connect with well head christmas tree 3, delivery main 14 and gas gathering station gathering line
After 33 connections, dispatch process of the present apparatus from the well head of oil/gas well containing liquid christmas tree 3 to gas gathering station gathering line 33, to oil gas containing liquid
Hydrops carries out Oil-gas Separation dispatch control on well in well shaft, carries out taking out pressure volume increase conveying control to low yield oil/gas well, complete
The oil/gas well drain of low yield containing liquid and low yield well production increment；In the embodiment, well head christmas tree 3 is existing on oil/gas well well head
Equipment is the equipment well-known in the art for adjusting gas well pressure and yield；Gas gathering station gathering line 33 is oil/gas well
Existing pipeline on well head is well-known in the art for connecting the gas-liquid delivery pipe road between christmas tree 3 and gas gathering station；It adopts
Gas general pipeline 4 is this pumping equipment system entry, and delivery main 14 is this pumping equipment system outlet；
The present invention is in the type well application of gas in natural gas containing liquid, as shown in Figure 1, a kind of pumping equipment of low yield containing liquid oil/gas well,
Pumping equipment is arranged on the connecting line between well head christmas tree 3 and gas gathering station gathering line 33；The pumping equipment tool
There is knockout drum 5；It is provided with liquid 5Y in the knockout drum 5, and by the liquid level of the liquid 5Y by gas-liquid separation
The inner cavity of tank is divided into gas and oil chamber and fluid chamber；The oil and gas import 5a of gas and oil chamber described in knockout drum is communicated with gas production general pipeline 4；
The entrance that the gas production general pipeline 4 is connected with the well head christmas tree 3 as pumping equipment；Liquid described in knockout drum
The liquid storage chamber 8y of I 5h of the liquid outlet connection gas-liquid sealing chamber of chamber, and in I 5h of the liquid outlet and liquid storage chamber 8y
Between pneumatic control shut-off valve 23 and check valve I 24 are set；The corresponding gas and oil chamber of knockout drum is additionally provided with by oil gas
Port 5c；The oil gas by-pass port 5c is connected to conveying always by check valve II 26, hand stop valve 27 and air delivering pipeline 14
Pipe；The air delivering pipeline 14 is the outlet of pumping equipment；I 5f of evacuation port, bottom are provided at the top of the knockout drum
Portion is provided with sewage draining exit 5d；The oil gas chamber 8W of the oil gas vent 5b connection gas-liquid sealing chamber 8 of gas and oil chamber described in knockout drum；
Pure air cavity 8G, oil gas chamber 8W and liquid storage chamber 8U are divided into inside the gas-liquid sealing chamber 8 from top to bottom；Pure air cavity 8G
It is isolated between oil gas chamber 8W using mist eliminator, oil gas chamber 8W is to seal against each other two cavitys being isolated with liquid storage chamber 8U；
The circumference of the pure air cavity 8G is equipped with II 8f of I 8b of gas outlet and evacuation port；I 8b of gas outlet is connected to voltage indicating device
10 bleeding point 10a, II 10b of gas outlet of voltage indicating device are connected to air inlet II 12a of cooler 12 by high-pressure air pipe, cold
But III 12b of gas outlet of device is connected to delivery main 14；And III 12b of the gas outlet of the cooler and delivery main 14 it
Between be provided with check valve III；The circumference of the oil gas chamber 8W is equipped with I 8a of air inlet, low pressure port 8i and installing port I 8m, described
Air inlet I be communicated to the oil gas vent of knockout drum；The low pressure port 8i is connected to pneumatic control triple valve 21
It exports on B；There is inlet 8c, II 8n of high pressure port 8d, II 8h of liquid outlet and installing port on the circumference of the liquid storage chamber 8U；Into
Liquid mouth 8c arrives I 5h of liquid outlet of knockout drum by check valve I 1, pneumatic control shut-off valve 23, and high pressure port 8d is connected to gas
The air inlet A, II 8h of liquid outlet of dynamic control triple valve 21 are connected to delivery main 14；I 8m of installing port of the oil gas chamber
It is connected between II 8n of installing port of liquid storage chamber by check valve IV；
Pumping equipment is additionally provided with high pressure gas holder 16；The high pressure gas holder 16 is circumferentially equipped with III 16a of air inlet, control gas
Mouth 16b, IV 16c of gas outlet and charge and discharge mouth；III 16a of air inlet is connected to III 12b of gas outlet of cooler 12, controls gas
Mouth 16b is divided by controlling tracheae 19 for three pipelines: pipeline I 34 is connected to the liquid being mounted in liquid storage chamber described in gas-liquid sealing chamber
Level control valve I 20, the pneumatic control mouth K of pneumatic control triple valve 21 is connected to by fluid level control valve I 20, and pipeline II 35 connects
It is connected to the commutation mouth C of pneumatic control triple valve 21, pipeline III 36 is connected to the fluid level control valve II being mounted on knockout drum 5
On 22, the pneumatic control mouth S of pneumatic control shut-off valve 23 is connected to by fluid level control valve II 22；IV 16c connection of gas outlet
Gas cut-off valve 17 on to natural gas engine；Charge and discharge mouth connecting gas transmission pipe road；The import A of pneumatic control triple valve 21 is connected to
The high pressure port 8d of gas-liquid sealing chamber；The liquid level of the liquid storage intracavity liquid described in gas-liquid sealing chamber of fluid level control valve I 21
It is connected when high, from the high pressure gas of high pressure gas holder control port, by the pipeline I 34, the fluid level control valve I 21 that control tracheae
Pneumatic control triple valve pneumatic control mouth K is acted on, import A and the commutation mouth C conducting of pneumatic control triple valve, Liquid level are made
Valve I 21 ends when the liquid level of gas-liquid sealing chamber liquid storage chamber is low, and pneumatic control triple valve pneumatic control mouth K loses high pressure work
Make import A and outlet B conducting with gas；Liquid level of the fluid level control valve II 22 in knockout drum ends when low；
There are import A, outlet B and pneumatic control mouth S on pneumatic control shut-off valve 23；The import A passes through piping connection to gas
The liquid outlet 5h of liquid knockout drum, outlet B are connected by check valve I with the inlet 8c of gas-liquid sealing chamber；Pneumatic control mouth S
The pipeline III 36 of pumping equipment control port is connected；The pneumatic control mouth S of pneumatic control shut-off valve, which loses high pressure effect gas, to be made
Import A and outlet B cut-off；
Oil-gas Separation dispatch control, the gas are carried out on well to 2355dm3 hydrops in the well shaft of oil gas containing liquid in order to realize
Liquid knockout drum 5 is used to collect and separate by the more hydrops 1 of 2355dm3 that 3.0MPa natural gas 2 is carried on well in oil gas well shaft,
3.0MPa natural gas after separation is transported to delivery main 14 by knockout drum 5, the 2355dm3 being carried on oil/gas well well
More hydrops 1 are displaced into gas-liquid sealing chamber 8 by knockout drum 5 in batches, are divided into 10 times through gas-liquid sealing chamber 8 and are displaced into conveying always
Pipe 14 is displaced into gas gathering station gathering line 33 with the natural gas carrying entered in delivery main 14；Gas production general pipeline 4 and well head gas production
After 3 connection of tree, 5 oil gas entrance 5a of knockout drum is connected to by gas production general pipeline 4, well head christmas tree 3 with the well shaft of oil gas containing liquid；
When 3 discharge pressure of oil and gas wellhead christmas tree is higher than 33 pressure of gas gathering station gathering line, hand stop valve I 27 is opened, containing liquid oil
The gas-liquid mixture that 2355dm3 hydrops 1 and 3.0MPa natural gas 2 are formed in Wellbore of Gas Wells passes through christmas tree 3,4 and of gas production general pipeline
5 oil gas entrance 5a of knockout drum enters in tank；The 2355dm3 liquid 5Y isolated through knockout drum 5 is stored in 3500dm3
Tank bottom, the oil/gas well 3.0MPa high-pressure natural gas isolated through knockout drum 5 pass through 5 oil gas by-pass port of knockout drum
5c, check valve II 26, hand stop valve I 27, air delivering pipeline 28 are transported to gas collection into the delivery main 14 after check valve III 13
It stands gathering line 33, completes 3 discharge pressure 3.0MPa of the well head of oil/gas well containing liquid christmas tree higher than 33 pressure of gas gathering station gathering line
Natural gas production work is conveyed when 1.5MPa；The check valve III being mounted between 12 gas outlet 12b of cooler and delivery main 14
13, for guaranteeing that gas in delivery main 14 or liquid cannot be flow backwards into 12 gas outlet 12b of cooler；In oil/gas well high pressure
Natural gas is transported to 14 process of delivery main from 5 oil gas by-pass port 5c of knockout drum, opens hand stop valve 29,3.0MPa high
Natural gas is pressed to pass through 5 oil gas by-pass port 5c of knockout drum, check valve 26, hand stop valve I 27, air delivering pipeline 28, manual section
Only valve II 29 enters high pressure gas holder 16 from 16 charge and discharge mouth 16d of high pressure gas holder, controls port 16b from high pressure gas holder 16 and passes through control gas
Pipe 19 divides conveys 3.0MPa high pressure gas for 3 pipelines outward: being transported to by pipeline I 34 and is mounted on 8 liquid storage of gas-liquid sealing chamber
Fluid level control valve 20 on chamber 8U is transported to the commutation of pneumatic control triple valve 21 mouth C by pipeline II 35, defeated by pipeline III 36
It is sent to the fluid level control valve 22 being mounted on knockout drum 5；It is higher than when knockout drum 5 is stored in tank bottom liquid 5Y liquid level
When 0.5m, the fluid level control valve II 22 being mounted on knockout drum 5 is connected, and controls port 16b's from high pressure gas holder 16
3.0MPa high pressure gas acts on pneumatic control shut-off valve 23 by control 19 pipeline 3 of tracheae, fluid level control valve II 22 and pneumatically controls
Donsole S makes 23 import A of pneumatic control shut-off valve and outlet B conducting, 5 liquid 5Y 3.0MPa natural gas in tank of knockout drum
Under pressure effect, by 5 liquid outlet 5h of knockout drum, 23 import A of pneumatic control shut-off valve and outlet B, check valve 24 from gas
8 inlet 8c of liquid sealing chamber is displaced into 8 liquid storage chamber 8U of gas-liquid sealing chamber, and the liquid storage volume of liquid storage chamber 8U is 230 dm3；Work as gas-liquid
When 8 liquid storage chamber 8U liquid 8Y liquid level of sealing chamber is higher than 0.5m, the fluid level control valve 20 that is mounted on 8 liquid storage chamber 8U of gas-liquid sealing chamber
Conducting controls the 3.0MPa high pressure gas of port 16b from high pressure gas holder 16, by the pipeline I, the liquid level control that control tracheae 19
Valve I 20 processed acts on 21 pneumatic control mouth K of pneumatic control triple valve, leads 21 import A of pneumatic control triple valve and commutation mouth C
It is logical, the 3.0MPa high pressure gas of port 16b is controlled from high pressure gas holder 16, by controlling 19 pipeline 2 of tracheae, pneumatic control three
The commutation of port valve 21 mouth C and import A enters 8 liquid storage chamber 8U of gas-liquid sealing chamber, 230 dm3 liquid in 8 liquid storage chamber 8U of gas-liquid sealing chamber
Body 8Y is being controlled in 19 pipeline 2 of tracheae under the effect of 3.0MPa high-pressure gas pressure, from 8 liquid storage chamber 8U liquid outlet 8h of gas-liquid sealing chamber
Delivery main 14 after being displaced into check valve III 13 by pipeline and check valve 25；It is mounted on the 8m interface and liquid storage of oil gas chamber 8W
Check valve IV 7 between the 8n interface of chamber 8U, for guarantee the high pressure gas in 8 liquid storage chamber 8U of gas-liquid sealing chamber cannot flow backwards into
Enter 8 oil gas chamber 8W of gas-liquid sealing chamber；During check valve 24 is used to guarantee 23 import A of pneumatic control shut-off valve and outlet B conducting, gas
8 liquid storage chamber 8U liquid 8Y of liquid sealing chamber when 14 dispatch of delivery main to cannot flow backwards into knockout drum 5；Be mounted on gas-liquid every
From the check valve 25 after 8 liquid storage chamber 8U liquid outlet 8h of tank, for guaranteeing that natural gas in delivery main 14 and liquid cannot be flow backwards
Into 8 liquid storage chamber 8U of gas-liquid sealing chamber；When knockout drum 5 be stored in tank bottom liquid 5Y liquid level it is low when, be mounted on gas-liquid separation
Fluid level control valve 22 on tank 5 ends, and controls 3.0MPa gas in port 16b control 19 pipeline 3 of tracheae from high pressure gas holder 16
Body cannot enter 23 pneumatic control mouth S of pneumatic control shut-off valve by fluid level control valve 22, make 23 import A of pneumatic control shut-off valve
With outlet B cut-off, 5 liquid outlet 5h of knockout drum is no longer connected to 8 liquid storage chamber 8U inlet 8c of gas-liquid sealing chamber, ensure that gas
3.0MPa natural gas in liquid knockout drum 5 cannot enter 8 liquid storage chamber 8U of gas-liquid sealing chamber；As 8 liquid storage chamber 8U of gas-liquid sealing chamber
After 230 interior dm3 liquid 8Y are displaced into delivery main 14,8 liquid storage chamber 8U liquid 8Y liquid level of gas-liquid sealing chamber is reduced, and makes to install
Fluid level control valve 20 in 8 liquid storage chamber of gas-liquid sealing chamber ends, and controls port 16b from high pressure gas holder 16 and controls tracheae
3.0MPa gas cannot enter 21 pneumatic control mouth K of pneumatic control triple valve by fluid level control valve I 20 in 19 pipelines I, make gas
Dynamic control 21 import A of triple valve and commutation mouth C cut-off commutate as 21 import A of pneumatic control triple valve and outlet B conducting, control
In 19 pipeline II of tracheae 3.0MPa high pressure gas no longer pass through 21 import A of pneumatic control triple valve and commutation mouth C enter gas-liquid every
From 8 liquid storage chamber 8U of tank, the 3.0MPa high pressure gas saved in 8 liquid storage chamber 8U of gas-liquid sealing chamber passes through high pressure port 8d, pneumatic control
21 import A of triple valve processed and outlet B are released to 8 oil gas chamber 8W low pressure port 8i of gas-liquid sealing chamber, make 8 liquid storage chamber of gas-liquid sealing chamber
Pressure reduction in 8U, after the pressure of liquid storage chamber 8U is lower than 3.0MPa pressure in knockout drum 5,5 liquid of knockout drum
5Y under the effect of 3.0MPa gas pressure, is displaced into the liquid storage of gas-liquid sealing chamber 8 in the control of fluid level control valve 22 and tank again
Chamber 8U, until 5 liquid 5Y of knockout drum and the not high rear pause drain work of 8 liquid storage chamber 8U liquid 8Y liquid level of gas-liquid sealing chamber
Make, completes 2355dm3 liquid the 5Y dispatch to 8 liquid storage chamber 8U of gas-liquid sealing chamber and gas-liquid sealing chamber 8 in batches in knockout drum 5
230 dm3 liquid 8Y are divided into 10 times and are displaced into delivery main 14 in liquid storage chamber 8U；Into the liquid 8Y of delivery main 14, coming from
It is displaced into gas gathering station gathering line 33 under the natural gas that 5 oil gas by-pass port 5c of knockout drum enters delivery main 14 carries,
Discharge pressure in gas gathering station gathering line 33 is reduced, guarantees that natural gas carries underground hydrops ability in oil gas well shaft, reaches
The well shaft inner product liquid of oil gas containing liquid carries out on well Oil-gas Separation dispatch control purpose；5 blowdown of knockout drum is opened manually
5 liquid 5Y of knockout drum is displaced into fortune liquid using gas pressure effect in tank by the hand stop valve III 30 of mouth 5d connection
Vehicle, in order to which 5 liquid 5Y of knockout drum is artificially collected；The high pressure exhaust-valve 31 of 5 evacuation port 5f connection of knockout drum, is used for
Protect the safety of knockout drum 5；The low pressure exhaust-valve 32 of the pure air cavity 8G evacuation port 8f connection of gas-liquid sealing chamber 8, for protecting
The safety of gas-liquid sealing chamber 8；Decompression venting valve 17 is installed for guaranteeing that natural gas is sent out between natural gas engine and high pressure gas holder
The stabilization of fuel needed for motivation is run；
When 3 discharge pressure 1.0MPa of oil and gas wellhead christmas tree is lower than 33 pressure 1.5MPa of gas gathering station gathering line, oil and gas wellhead
3 natural gas of christmas tree cannot be transported to gas gathering station gathering line 33 into delivery main 14 by knockout drum 5, at this time oil gas
The natural gas gas production of well is 0, the check valve 26 after being mounted on 5 liquid outlet 5h of knockout drum, for guaranteeing delivery main 14
Interior 1.5MPa natural gas and liquid cannot be flow backwards into liquid knockout drum 5；Low yield oil/gas well is carried out to take out pressure volume increase in order to realize
Hand stop valve 29 is opened in conveying control at this time, and the 1.5MPa natural gas in delivery main 14 is cut by air delivering pipeline 28, manually
Only valve 29 is inflated from 16 charge and discharge mouth 16d of high pressure gas holder to high pressure gas holder 16, is used into the 1.5MPa natural gas in high pressure gas holder 16
In providing starting fuel for natural gas engine 18；High pressure gas holder 16 closes hand stop valve 29 after being full of, and starts natural gas hair
The operation of motivation 18 makes voltage indicating device 10 work, under the continuous pumping pressure effect of voltage indicating device 10, the pure air cavity 8G's of gas-liquid sealing chamber 8
Pure natural gas, which is become by gas outlet 8b, low-pressure air pipe 9 into 10 bleeding point 10a of voltage indicating device from gas outlet 10b, to be higher than
The high-pressure natural gas of 1.5MPa is discharged, and reduces natural gas in the pure air cavity 8G of gas-liquid sealing chamber 8 immediately, the natural gas of oil gas chamber 8W
It is supplemented immediately to pure air cavity 8G, so that natural gas in oil gas chamber 8W is followed reduction, the natural gas in knockout drum 5 is through oil gas vent
After 5b, pressure reducing valve 6,8 air inlet 8a of gas-liquid sealing chamber are supplemented to oil gas chamber 8W, into the natural of oil gas chamber 8W after pressure reducing valve 6
Atmospheric pressure is 0.1MPa, and natural gas follows reduction in knockout drum 5, and the well shaft inner product of oil gas containing liquid liquid 1 and 1.0MPa are natural
The gas-liquid mixture that gas 2 is formed is carried on oil/gas well, is entered by christmas tree 3, gas production general pipeline 4 and 5 oil gas of knockout drum
Mouth 5a is supplemented to knockout drum 5, isolates liquid 5Y and 1.0MPa low pressure natural gas into knockout drum 5,1.0MPa is low
After pressing natural gas to reduce pressure to 0.1MPa by pipeline and pressure reducing valve 6 from oil gas vent 5b, from 8 oil gas chamber 8W of gas-liquid sealing chamber
Air inlet 8a enters 8 oil gas chamber of gas-liquid sealing chamber, by mist eliminator between pure air cavity 8G and oil gas chamber 8W containing the natural of mist of oil
Gas is separated into liquid and 0.1MPa low pressure natural gas；The 8 oil gas chamber 8W of gas-liquid sealing chamber and liquid storage chamber 8U is about two
Mutually isolated cavity, oil gas chamber 8W is on the top liquid storage chamber 8U, and liquid is by being mounted on the 8m interface and liquid storage chamber of oil gas chamber 8W
Check valve 7 between the 8n interface of 8U enters 8 liquid storage chamber 8U of gas-liquid sealing chamber and stores, and carries the mist in 0.1MPa natural gas
Liquid mist material of being caught is separated and falls into the bottom oil gas chamber 8W, and pure 0.1MPa low pressure natural gas enters gas-liquid sealing chamber 8
Pure air cavity 8G enters 10 bleeding point 10a of voltage indicating device by gas outlet 8b, low-pressure air pipe 9, ensure that the safety of voltage indicating device 10
Work is higher than gas gathering station gathering line 33 from 10 gas outlet 10b output pressure of voltage indicating device in the case where voltage indicating device 10 takes out pressure effect
100 DEG C of high temperature and pressure natural gases of pressure 1.5MPa enter 12 air inlet 12a of cooler by high-pressure air pipe 11, pass through cooling
After device 12 is cooled to 30 DEG C of high pressure low temperature natural gas, enter delivery main from 12 gas outlet 12b of cooler by check valve 13
14 are transported to gas gathering station gathering line 33；Through a small amount of 30 DEG C of high pressure low temperature natural gases after cooling of cooler 12, pass through pressure maintaining valve
Constantly enter high pressure gas holder 16 through 16 air inlet 16a of high pressure gas holder after 15 pressure stabilizings, passes through pipeline through 16 gas outlet 16c of high pressure gas holder
With after decompression venting valve 17 become 18 continuous operation of natural gas engine needed for fuel, make natural gas engine 18 not by oil gas
3 well head 1.0MPa pressure variations influence of well head christmas tree ensure that the continuous pumping pressure natural gas volume increase work of voltage indicating device 10；Into
Enter the natural gas of high pressure gas holder 16 also from high pressure gas holder 16 control port 16b by control tracheae 19 divide for 3 pipelines it is defeated outward
It send and is higher than 1.5MPa high pressure gas: being transported to the fluid level control valve being mounted on 8 liquid storage chamber 8U of gas-liquid sealing chamber by pipeline 1
20, the commutation mouth C of pneumatic control triple valve 21 is transported to by pipeline 2, is transported to and is mounted on knockout drum 5 by pipeline 3
Fluid level control valve 22；When knockout drum 5 be stored in tank bottom liquid 5Y liquid level it is high when, the liquid that is mounted on knockout drum 5
Level control valve 22 is connected, and is higher than 1.5MPa high pressure gas from the control of high pressure gas holder 16 port 16b, passes through and control tracheae 19
Pipeline 3, fluid level control valve 22 act on 23 pneumatic control mouth S of pneumatic control shut-off valve, make 23 import A of pneumatic control shut-off valve and
B conducting is exported, 5 liquid 5Y of knockout drum under the effect of 1.0MPa gas pressure, passes through 5 liquid outlet of knockout drum in tank
5h, 23 import A of pneumatic control shut-off valve and outlet B, check valve 24 from 8 inlet 8c of gas-liquid sealing chamber are displaced into gas-liquid sealing chamber
8 liquid storage chamber 8U are mounted on 8 liquid storage chamber 8U of gas-liquid sealing chamber when 8 liquid storage chamber 8U liquid 8Y liquid level of gas-liquid sealing chamber is higher than 0.5m
On fluid level control valve 20 be connected, from high pressure gas holder 16 control port 16b be higher than 1.5MPa high pressure gas, pass through control
19 pipeline 1 of tracheae, fluid level control valve 20 act on 21 pneumatic control mouth K of pneumatic control triple valve, make pneumatic control triple valve 21
Import A and commutation mouth C conducting are higher than 1.5MPa high pressure gas from the control of high pressure gas holder 16 port 16b, by controlling gas
19 pipeline 2 of pipe, the commutation of pneumatic control triple valve 21 mouth C and import A enter 8 liquid storage chamber 8U of gas-liquid sealing chamber, and gas-liquid sealing chamber 8 stores up
Sap cavity 8U liquid 8Y is higher than under the effect of 1.5MPa high-pressure gas pressure in control 19 pipeline 2 of tracheae, from 8 liquid storage of gas-liquid sealing chamber
Chamber 8U liquid outlet 8h is displaced into the delivery main 14 after check valve 13 by pipeline and check valve 25；It is mounted on the 8m of oil gas chamber 8W
Check valve IV 7 between interface and the 8n interface of liquid storage chamber 8U, for guaranteeing being higher than in 8 liquid storage chamber 8U of gas-liquid sealing chamber
1.5MPa high pressure gas cannot be flow backwards into 8 oil gas chamber 8W of gas-liquid sealing chamber；Check valve 24 is for guaranteeing pneumatic control shut-off valve
23 import A and outlet B conducting during, 8 liquid storage chamber 8U liquid 8Y of gas-liquid sealing chamber to cannot be flow backwards when 14 dispatch of delivery main into
Enter knockout drum 5；Check valve 25 after being mounted on 8 liquid storage chamber 8U liquid outlet 8h of gas-liquid sealing chamber, for guaranteeing delivery main
1.0MPa natural gas and liquid in 14 cannot be flow backwards into 8 liquid storage chamber 8U of gas-liquid sealing chamber；When knockout drum 5 is stored in tank
When bottom liquid 5Y liquid level is lower than 0.5m, the fluid level control valve 22 being mounted on knockout drum 5 ends, from high pressure gas holder 16
Pneumatic control cannot be entered by fluid level control valve 22 higher than 1.5MPa gas in 19 pipeline 3 of port 16b control tracheae by, which controlling, cuts
Only 23 pneumatic control mouth S of valve makes 23 import A of pneumatic control shut-off valve and outlet B cut-off, 5 liquid outlet 5h of knockout drum and gas
8 liquid storage chamber 8U inlet 8c of liquid sealing chamber is no longer connected to, and ensure that the 1.0MPa natural gas in knockout drum 5 cannot enter
8 liquid storage chamber 8U of gas-liquid sealing chamber；After 8 liquid storage chamber 8U liquid 8Y of gas-liquid sealing chamber is displaced into delivery main 14, gas-liquid sealing chamber 8
Liquid storage chamber 8U liquid 8Y liquid level reduces, and ends the fluid level control valve 20 being mounted in 8 liquid storage chamber of gas-liquid sealing chamber, from height
Tank 16 of calming the anger, which controls in 19 pipeline 1 of port 16b control tracheae, cannot enter gas by fluid level control valve 20 higher than 1.5MPa gas
Dynamic control 21 pneumatic control mouth K of triple valve makes 21 import A of pneumatic control triple valve and commutation mouth C cut-off, commutates as pneumatic control
21 import A of triple valve and outlet B conducting, the interior 1.5MPa high pressure gas that is higher than of 19 pipeline of control tracheae 2 no longer pass through pneumatic control
21 import A of triple valve and commutation mouth C enter 8 liquid storage chamber 8U of gas-liquid sealing chamber, the height of the preservation in 8 liquid storage chamber 8U of gas-liquid sealing chamber
It is released to pressure 0.1MPa's by high pressure port 8d, 21 import A of pneumatic control triple valve and outlet B in 1.5MPa high pressure gas
8 oil gas chamber 8W low pressure port 8i of gas-liquid sealing chamber makes the pressure reduction for being higher than 1.5MPa in 8 liquid storage chamber 8U of gas-liquid sealing chamber, when
After the pressure of liquid storage chamber 8U is lower than pressure 1.0MPa in knockout drum 5,5 liquid 5Y of knockout drum is controlled in fluid level control valve 22
In system and tank under the effect of 1.0MPa gas pressure, it is displaced into the liquid storage chamber 8U of gas-liquid sealing chamber 8 again, until knockout drum
5 liquid 5Y and the not high rear pause drain work of 8 liquid storage chamber 8U liquid 8Y liquid level of gas-liquid sealing chamber, complete 5 liquid of knockout drum
Body 5Y is divided into the dispatch of 8 liquid storage chamber 8U of gas-liquid sealing chamber and 8 liquid storage chamber 8U liquid 8Y of gas-liquid sealing chamber in batches to be repeatedly displaced into
Delivery main 14；Into the liquid 8Y of delivery main 14, take out from voltage indicating device 10 under pressure effect, by cooler 12
Enter under high pressure low temperature natural gas of the delivery main 14 higher than 1.5MPa carries after cooling through check valve 13 and is displaced into gas gathering station collection
Defeated pipeline 33 reduces discharge pressure in gas gathering station gathering line 33, guarantees that natural gas carries underground hydrops in oil gas well shaft
Ability realizes take out to low yield oil/gas well and volume increase conveying control and the well shaft inner product liquid of oil gas containing liquid is pressed to carry out oil on well
Gas separates dispatch control, and the gas-liquid mixture that the well shaft inner product of oil gas containing liquid liquid 1 and natural gas 2 are formed constantly is carried to oil gas
On well, the deposition of the well shaft inner product liquid of oil gas containing liquid is removed, makes the underground of oil/gas well containing liquid without liquid lock, realizes oil
The pumping pressure volume increase function of 0 yield of low yield oil/gas well when the discharge pressure of gas well mouth christmas tree 3 is lower than 33 pressure of gas gathering station gathering line
Energy；The hand stop valve 30 for opening 5 sewage draining exit 5d connection of knockout drum manually, using gas pressure effect in tank gas-liquid
5 liquid 5Y of knockout drum is displaced into fortune liquid vehicle, in order to artificially collecting for 5 liquid of knockout drum；5 evacuation port 5f of knockout drum
The high pressure exhaust-valve 31 of connection, for protecting the safety of knockout drum 5；The pure air cavity 8G evacuation port 8f connection of gas-liquid sealing chamber 8
Low pressure exhaust-valve 32, for protecting the safety of gas-liquid sealing chamber 8；Installation decompression is steady between natural gas engine and high pressure gas holder
Pressure valve 17 is used to guarantee that natural gas engine to run the stabilization of required fuel；
Pneumatic control shut-off valve 23 uses Electronic control shut-off valve in the present invention, and pneumatic control triple valve 21 uses Electronic control three
When port valve, by the change of connecting line, it can equally reach the purpose of the present invention.
It is preferable to use natural gas engines 18, voltage indicating device 10 to be not limited to make for the driving power of voltage indicating device 10 in the present invention
It is driven with natural gas engine 18, natural gas engine 18 is equipped with gas cut-off valve；The cooler 12 is natural gas drop
Warm device.
Claims (6)
1. a kind of pumping equipment of the oil/gas well of low yield containing liquid, it is characterised in that: pumping equipment is arranged in well head christmas tree and gas collection
On the connecting line stood between gathering line；The pumping equipment has knockout drum；It is set in the knockout drum
It is equipped with liquid, and the inner cavity of knockout drum is divided into gas and oil chamber and fluid chamber by the liquid level of the liquid；Knockout drum
The oil and gas import of the gas and oil chamber is communicated with gas production general pipeline；The gas production general pipeline is connected with the well head christmas tree；Gas
The liquid outlet I of fluid chamber described in liquid knockout drum is connected to the liquid storage chamber of gas-liquid sealing chamber, and the liquid outlet I with it is described
Liquid storage chamber between pneumatic control shut-off valve and check valve I are set；The corresponding gas and oil chamber of knockout drum is additionally provided with oil
Gas by-pass port；The oil gas by-pass port is connected to delivery main；The oil gas vent of gas and oil chamber described in knockout drum connects gas-liquid
The oil gas chamber of sealing chamber；
Pure air cavity, oil gas chamber and liquid storage chamber are divided into inside the gas-liquid sealing chamber from top to bottom；Pure air cavity and oil gas chamber
Between using mist eliminator be isolated, oil gas chamber is to seal against each other two cavitys being isolated with liquid storage chamber；
The pure air cavity circumference is equipped with gas outlet I and evacuation port II；The gas outlet I is connected to the pumping of voltage indicating device
Mouthful, the gas outlet II of voltage indicating device is connected to the air inlet II of cooler by high-pressure air pipe, and the gas outlet III of cooler connects
To delivery main；The oil gas chamber circumference is equipped with air inlet I, low pressure port and installing port I, and the air inlet I is connected to
To the oil gas vent of knockout drum；The low pressure port is connected on the outlet B of pneumatic control triple valve；The liquid storage
There is inlet, high pressure port, liquid outlet II and installing port II on chamber circumference；Inlet passes through pipeline and check valve, pneumatic control
Shut-off valve processed is connected to the liquid outlet I of knockout drum, and high pressure port is connected to the air inlet A of pneumatic control triple valve, described
Liquid outlet II be connected to delivery main；It is interconnected between the installing port I of the oil gas chamber and the installing port II of liquid storage chamber；
Pumping equipment is additionally provided with high pressure gas holder；The high pressure gas holder is circumferentially equipped with air inlet III, control port, outlet
Mouth IV and charge and discharge mouth；The air inlet III is connected to the gas outlet III of cooler, and control port is divided into three by controlling tracheae
Pipeline: pipeline I is connected to the fluid level control valve I being mounted in liquid storage chamber described in gas-liquid sealing chamber, again by fluid level control valve I
It is connected to the pneumatic control mouth K of pneumatic control triple valve, pipeline II is connected to the commutation mouth C of pneumatic control triple valve, pipeline III
It is connected on the fluid level control valve II being mounted on knockout drum, pneumatic control cut-off is connected to by fluid level control valve II
The pneumatic control mouth S of valve；Gas outlet IV is connected to the gas cut-off valve on natural gas engine；Charge and discharge mouth connecting gas transmission pipe road；
The high pressure port of the import A connection gas-liquid sealing chamber of pneumatic control triple valve；The fluid level control valve I is in gas-liquid sealing chamber institute
State liquid storage intracavity liquid liquid level it is high when conducting from the high pressure gas of high pressure gas holder control port pass through control tracheae
Pipeline I, fluid level control valve I act on pneumatic control triple valve pneumatic control mouth K, make the import A of pneumatic control triple valve and change
It is connected to mouth C, fluid level control valve ends when the liquid level of gas-liquid sealing chamber liquid storage chamber is low, and pneumatic control triple valve is pneumatically controlled
Donsole K, which loses high pressure effect gas, makes import A and outlet B conducting；Liquid level of the fluid level control valve II in knockout drum is low
When end；Liquid in knockout drum is in the control of fluid level control valve II and tank under gas pressure effect, in batches to storage
The dispatch of sap cavity and liquid storage intracavity liquid, which are divided into, is repeatedly displaced into delivery main；
There are import A, outlet B and pneumatic control mouth S on pneumatic control shut-off valve；The import A passes through piping connection to gas-liquid
The liquid outlet of knockout drum, outlet B are connected by check valve with the inlet of gas-liquid sealing chamber；Pneumatic control mouth S drain dress
The pipeline III for setting control port is connected；The pneumatic control mouth S of pneumatic control shut-off valve, which loses high pressure effect gas, to be made import A and goes out
Mouth B cut-off.
2. a kind of pumping equipment of the oil/gas well of low yield containing liquid as described in claim 1, it is characterised in that: the oil gas bypass
Mouth is connected to delivery main by check valve II, hand stop valve I and air delivering pipeline.
3. a kind of pumping equipment of the oil/gas well of low yield containing liquid as described in claim 1, it is characterised in that: the gas-liquid separation
Evacuation port I is provided at the top of tank, bottom is provided with sewage draining exit.
4. a kind of pumping equipment of the oil/gas well of low yield containing liquid as described in claim 1, it is characterised in that: cooler gas outlet with
Check valve III is provided between delivery main, for guaranteeing that gas in delivery main or liquid cannot flow backwards into cooler
Port.
5. a kind of pumping equipment of the oil/gas well of low yield containing liquid as described in claim 1, it is characterised in that: described in gas-liquid sealing chamber
Check valve V is installed, for guaranteeing that natural gas in delivery main and liquid cannot be flow backwards into gas-liquid after liquid storage chamber liquid outlet
Sealing chamber liquid storage chamber.
6. the fluid-discharge method of drain is carried out using the pumping equipment of any oil/gas well of low yield containing liquid of claim 1-5, it is special
Sign is: the gas production general pipeline is connect, after the connection of delivery main and gas gathering station gathering line with well head christmas tree, the row
Dispatch process of the liquid device from the well head christmas tree of oil/gas well containing liquid to gas gathering station gathering line, to the well shaft inner product liquid of oil gas containing liquid
Oil-gas Separation dispatch control is carried out on well, and low yield oil/gas well is carried out to take out pressure volume increase conveying control, completes the oil gas of low yield containing liquid
Well drain and low yield well production increment；The specific method is as follows:
The knockout drum is separated for collecting and separating the more hydrops being carried on well by natural gas in oil gas well shaft
Natural gas afterwards is transported to delivery main by knockout drum, and the more hydrops being carried on oil/gas well well pass through knockout drum
It is displaced into gas-liquid sealing chamber in batches, is divided into through gas-liquid sealing chamber and is repeatedly displaced into delivery main, with the day entered in delivery main
Right gas carrying is displaced into gas gathering station gathering line；After gas production general pipeline is connect with well head christmas tree, knockout drum oil gas entrance is logical
Cross gas production general pipeline, well head christmas tree is connected to the well shaft of oil gas containing liquid；When oil and gas wellhead christmas tree discharge pressure is higher than gas gathering station
When gathering line pressure, hand stop valve I is opened, the gas-liquid mixture of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption is logical
The oil gas entrance for crossing christmas tree, gas production general pipeline and knockout drum enters in tank；The fluid storage isolated through knockout drum
In tank bottom, the oil/gas well high-pressure natural gas isolated through knockout drum enters check valve by knockout drum, air delivering pipeline
Delivery main after III is transported to gas gathering station gathering line, completes the well head of oil/gas well containing liquid christmas tree discharge pressure and is higher than gas gathering station
Natural gas production work is conveyed when gathering line pressure；It is defeated in the oil gas by-pass port of oil/gas well high-pressure natural gas from knockout drum
It is sent to delivery main's process, opens hand stop valve II, high-pressure natural gas passes through knockout drum oil gas by-pass port, check valve
II, hand stop valve I, air delivering pipeline, hand stop valve II enter high pressure gas holder from high pressure gas holder charge and discharge mouth, from high pressure gas holder control
Port processed is divided into the outside conveying high-pressure gas of three pipelines by controlling tracheae: being transported to by pipeline I and is mounted on gas-liquid isolation
Fluid level control valve I in tank liquid storage chamber is transported to the commutation mouth C of pneumatic control triple valve by pipeline II, defeated by pipeline III
It is sent to the fluid level control valve II being mounted on knockout drum；When knockout drum be stored in tank bottom liquid level it is high when, installation
Fluid level control valve II on knockout drum is connected, from the high pressure gas of high pressure gas holder control port, by controlling gas
Pipe pipeline III, fluid level control valve II act on the pneumatic control mouth S of pneumatic control shut-off valve, make pneumatic control shut-off valve import A
With outlet B conducting, knockout drum liquid under gas pressure effect, passes through knockout drum liquid outlet, pneumatic control in tank
Shut-off valve import A processed and outlet B, check valve I are displaced into gas-liquid sealing chamber liquid storage chamber from gas-liquid sealing chamber inlet；When gas-liquid every
When high from tank liquid storage chamber liquid level, the fluid level control valve I being mounted in gas-liquid sealing chamber liquid storage chamber is connected, from high pressure gas
Tank controls the high pressure gas of port, acts on pneumatic control triple valve by control tracheae pipeline I, fluid level control valve I and pneumatically controls
Donsole K passes through pneumatic control threeway import A and commutation mouth C conducting from the high pressure gas of high pressure gas holder control port
Control tracheae pipeline II, pneumatic control triple valve commutation mouth C and import A enter gas-liquid sealing chamber liquid storage chamber, gas-liquid sealing chamber
Liquid storage chamber liquid under high-pressure gas pressure effect, passes through pipe from gas-liquid sealing chamber liquid storage chamber liquid outlet in control tracheae pipeline II
Road and check valve V 25 are displaced into the delivery main after check valve III；It is mounted between the interface of oil gas chamber and the interface of liquid storage chamber
Check valve IV, for guaranteeing that the high pressure gas in gas-liquid sealing chamber liquid storage chamber cannot be flow backwards into gas-liquid sealing chamber oil gas chamber；
Check valve I is for during guaranteeing pneumatic control shut-off valve import A and outlet B conducting, and the liquid storage chamber liquid of gas-liquid sealing chamber is to defeated
Sending cannot flow backwards when general pipeline dispatch into knockout drum；When knockout drum be stored in tank bottom liquid level it is low when, be mounted on
Fluid level control valve II on knockout drum ends, and gas is not in the pipeline III of high pressure gas holder control port control tracheae
The pneumatic control mouth S that pneumatic control shut-off valve can be entered by fluid level control valve II, makes pneumatic control shut-off valve import A and outlet
B cut-off, the liquid outlet of knockout drum are no longer connected to the inlet of gas-liquid sealing chamber liquid storage chamber, ensure that in knockout drum
Natural gas cannot enter gas-liquid sealing chamber liquid storage chamber；When the liquid discharge in the liquid storage chamber of gas-liquid sealing chamber to delivery main
Afterwards, the liquid level in the liquid storage chamber of gas-liquid sealing chamber reduces, and makes the fluid level control valve I being mounted in gas-liquid sealing chamber liquid storage chamber
Cut-off, gas cannot be entered pneumatic by fluid level control valve I in the pipeline I of the control tracheae of high pressure gas holder control port
Triple valve pneumatic control mouth K is controlled, makes pneumatic control triple valve import A and commutation mouth C cut-off, commutates as pneumatic control triple valve
Import A and outlet B conducting, control high pressure gas in the pipeline II of tracheae and no longer pass through and pneumatic control triple valve import A and change
Enter the liquid storage chamber of gas-liquid sealing chamber to mouth C, the high pressure gas saved in the liquid storage chamber of gas-liquid sealing chamber passes through high pressure port, gas
Dynamic control triple valve import A and outlet B is released to the oil gas chamber low pressure port of gas-liquid sealing chamber, makes in gas-liquid sealing chamber liquid storage chamber
Pressure reduction, when liquid storage chamber pressure be lower than gas-liquid separation pressure inside the tank after, the liquid of knockout drum is in fluid level control valve
In II control and tank under gas pressure effect, it is displaced into the liquid storage chamber of gas-liquid sealing chamber again, until the liquid of knockout drum
The not high rear pause drain work of liquid level in the liquid storage chamber of body and gas-liquid sealing chamber, completes the liquid point of knockout drum
The liquid for criticizing the liquid storage chamber of the dispatch and gas-liquid sealing chamber to the liquid storage chamber of gas-liquid sealing chamber, which is divided into, is repeatedly displaced into delivery main；
Into the liquid of delivery main, the dispatch in the case where the natural gas for entering delivery main from knockout drum oil gas by-pass port carries
To gas gathering station gathering line, discharge pressure in gas gathering station gathering line is reduced, guarantees that natural gas carries well in oil gas well shaft
Lower hydrops ability has reached the well shaft inner product liquid of oil gas containing liquid and has carried out Oil-gas Separation dispatch control purpose on well；It opens manually
The hand stop valve of the sewage draining exit connection of knockout drum arranges the liquid of knockout drum using gas pressure effect in tank
It is sent to fortune liquid vehicle, in order to artificially collecting for liquid；The evacuation port of knockout drum is connected with high pressure exhaust-valve, for protecting gas
The safety of liquid knockout drum；The evacuation port of the pure air cavity of gas-liquid sealing chamber is connected with low pressure exhaust-valve, for protecting gas-liquid sealing chamber
Safety；Decompression venting valve is installed, for guaranteeing needed for natural gas engine operation between natural gas engine and high pressure gas holder
The stabilization of fuel；
When oil and gas wellhead christmas tree discharge pressure is lower than gas gathering station gathering line pressure, oil and gas wellhead christmas tree natural gas cannot
Enter delivery main by knockout drum and is transported to gas gathering station gathering line, the list after being mounted on the liquid outlet of knockout drum
To valve II, for guaranteeing that natural gas in delivery main and liquid cannot be flow backwards into liquid knockout drum；In order to realize to low oil production
Gas well carries out taking out pressure volume increase conveying control, opens hand stop valve II at this time, the natural gas in delivery main by air delivering pipeline,
Hand stop valve II is inflated from high pressure gas holder charge and discharge mouth to high pressure gas holder, is used to be natural gas into the natural gas in high pressure gas holder
Engine provides starting fuel；High pressure gas holder closes hand stop valve II after being full of, and starting natural gas engine operation makes to take out pressure
Device work, under the continuous pumping pressure effect of voltage indicating device, the pure natural gas of the pure air cavity of gas-liquid sealing chamber by gas outlet,
Low-pressure air pipe enters the bleeding point of voltage indicating device, and is discharged from gas outlet, makes in the pure air cavity of gas-liquid sealing chamber natural gas immediately
It reduces, the natural gas of oil gas chamber is supplemented to pure air cavity immediately, and the intracavitary natural gas of oil gas is made to follow reduction, the day in knockout drum
After oil gas vent, pressure reducing valve, gas-liquid sealing chamber air inlet are supplemented to oil gas chamber, natural gas follows in knockout drum subtracts right gas
Few, the gas-liquid mixture of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption is carried on oil/gas well, by christmas tree, is adopted
Gas general pipeline and knockout drum oil gas entrance are supplemented to knockout drum, isolate liquid into knockout drum and low pressure is natural
Gas, after low pressure natural gas reduces pressure by pipeline and pressure reducing valve from oil gas vent, from gas-liquid sealing chamber oil gas chamber air inlet into
Enter gas-liquid sealing chamber oil gas chamber, the natural gas containing mist of oil is separated into liquid and low by mist eliminator between pure air cavity and oil gas chamber
Press natural gas；Liquid enters liquid storage chamber=storage of gas-liquid sealing chamber by check valve IV, carries the fog-like liquid in natural gas
Mist material of being caught separates the bottom for falling into oil gas chamber, and pure low pressure natural gas enters the pure air cavity of gas-liquid sealing chamber, and
The bleeding point for entering voltage indicating device by gas outlet, low-pressure air pipe ensure that the trouble free service of voltage indicating device, take out in voltage indicating device
Under pressure effect, the high temperature and pressure natural gas of gas gathering station gathering line pressure is higher than from the gas outlet output pressure of voltage indicating device, is led to
The air inlet that high-pressure air pipe enters cooler is crossed, after being cooled to high pressure low temperature natural gas by cooler, from the outlet of cooler
Mouth is transported to gas gathering station gathering line after entering delivery main；Through cooler a small amount of high pressure low temperature natural gas after cooling, pass through
Air inlet after pressure maintaining valve pressure stabilizing through high pressure gas holder constantly enters high pressure gas holder, and the gas outlet through high pressure gas holder is by pipeline and subtracts
Fuel needed for becoming natural gas engine continuous operation after pressure pressure maintaining valve, makes natural gas engine not by oil and gas wellhead christmas tree
Well head pressure variation influences, and ensure that the continuous pumping pressure natural gas volume increase work of voltage indicating device；Into the natural gas of high pressure gas holder
Also it is divided into the outside conveying high-pressure gas of three pipelines from the control port of high pressure gas holder by controlling tracheae: is conveyed by pipeline I
To fluid level control valve I, pneumatic control triple valve commutation mouth C is transported to by pipeline II, Liquid level is transported to by pipeline III
Valve II；When knockout drum be stored in tank bottom liquid level it is high when, fluid level control valve II be connected, from high pressure gas holder control gas
The high pressure gas of mouth, acts on pneumatic control shut-off valve pneumatic control mouth S by pipeline III, fluid level control valve II, makes pneumatically to control
Shut-off valve import A processed and outlet B conducting, the liquid of knockout drum under gas pressure effect, pass through gas-liquid separation in tank
The liquid outlet of tank, pneumatic control shut-off valve import A and outlet B, check valve I are displaced into gas-liquid from the inlet 8c of gas-liquid sealing chamber
The liquid storage chamber of sealing chamber is mounted in gas-liquid sealing chamber liquid storage chamber when the liquid level in the liquid storage chamber of gas-liquid sealing chamber is high
Fluid level control valve I be connected, from high pressure gas holder control port high pressure gas, pass through pipeline I, fluid level control valve I act on
In the pneumatic control mouth K of pneumatic control triple valve, make import A and the commutation mouth C conducting of pneumatic control triple valve, from high pressure
The high pressure gas of the control port of gas tank, enters liquid storage chamber by pipeline II, the commutation mouth C of pneumatic control triple valve and import A,
Liquid in liquid storage chamber under high-pressure gas pressure effect, is displaced into delivery main from the liquid outlet of liquid storage chamber in pipeline II；
When knockout drum be stored in the liquid level in tank bottom it is low when, fluid level control valve II ends, and gas is not in Lai Guanlu III
Pneumatic control shut-off valve pneumatic control mouth S can be entered by fluid level control valve II, make pneumatic control shut-off valve import A and outlet B
Cut-off, the liquid outlet of knockout drum are no longer connected to the inlet of liquid storage chamber 8U, ensure that the natural gas in knockout drum
Gas-liquid sealing chamber liquid storage chamber cannot be entered；Liquid liquid after the liquid discharge in liquid storage chamber is to delivery main, in liquid storage chamber
Potential drop is low, ends fluid level control valve I, cannot enter pneumatic control triple valve by fluid level control valve I from gas in pipeline I
Pneumatic control mouth, make pneumatic control triple valve mouth A and commutation mouth C cut-off, commutate for pneumatic control triple valve import A and go out
Mouth B is connected, and high pressure gas no longer passes through pneumatic control triple valve import A in pipeline II and commutation mouth C enters liquid storage chamber, liquid storage chamber
The high pressure gas of interior preservation is released to the low pressure of oil gas chamber by high pressure port, the import A of pneumatic control triple valve and outlet B
Port makes the pressure reduction in liquid storage chamber, after the pressure of liquid storage chamber is lower than gas-liquid separation pressure inside the tank, in knockout drum
Liquid under gas pressure effect, is displaced into liquid storage chamber 8U in the control of fluid level control valve II and tank again, until gas-liquid point
From the not high rear pause drain work of the liquid level in the liquid and liquid storage chamber in tank, liquid batch in knockout drum is completed
Dispatch and liquid storage intracavity liquid to liquid storage chamber, which are divided into, is repeatedly displaced into delivery main；Into the liquid of delivery main, coming from
In the high pressure low temperature natural gas for entering delivery main after cooling through check valve III under voltage indicating device pumping pressure effect, through cooler
It is displaced into gas gathering station gathering line under carrying, reduces discharge pressure in gas gathering station gathering line, guarantees day in oil gas well shaft
Right gas carries underground hydrops ability, realizes and take out in pressure volume increase conveying control and the well shaft of oil gas containing liquid to low yield oil/gas well
Hydrops carries out Oil-gas Separation dispatch control, the gas-liquid mixture quilt of the well shaft inner product liquid of oil gas containing liquid and natural gas adsorption on well
It is constantly carried on oil/gas well, removes the deposition of the well shaft inner product liquid of oil gas containing liquid, make the underground of oil/gas well containing liquid without liquid
Body obstruction, the pumping pressure of low yield oil/gas well when realizing the discharge pressure of oil and gas wellhead christmas tree lower than gas gathering station gathering line pressure
Increase production function.
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Cited By (1)
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| CN110318711B (en) | 2023-06-30 |
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