CN108071364A - A kind of controllable device of gas well water pumping gas production - Google Patents
A kind of controllable device of gas well water pumping gas production Download PDFInfo
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- CN108071364A CN108071364A CN201610995651.8A CN201610995651A CN108071364A CN 108071364 A CN108071364 A CN 108071364A CN 201610995651 A CN201610995651 A CN 201610995651A CN 108071364 A CN108071364 A CN 108071364A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000005086 pumping Methods 0.000 title claims abstract description 11
- 235000020681 well water Nutrition 0.000 title claims abstract description 11
- 239000002349 well water Substances 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 241000237509 Patinopecten sp. Species 0.000 claims description 6
- 235000020637 scallop Nutrition 0.000 claims description 6
- 210000000481 breast Anatomy 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 26
- 238000010586 diagram Methods 0.000 description 8
- 238000003032 molecular docking Methods 0.000 description 5
- 241000521257 Hydrops Species 0.000 description 4
- 206010030113 Oedema Diseases 0.000 description 4
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 244000147058 Derris elliptica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- 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)
- Earth Drilling (AREA)
Abstract
A kind of controllable device of gas well water pumping gas production of the present invention, including solar panel, well head data sink, plunger catcher, self locating device body, data butt joint ring, liquid outlet, linear bearing sealing ring, displacement sensor, channel valve, retarder, temperature sensor, inlet, micro machine, data processor, vacuum cup, chargeable battery group, centralizer, upper valve block, lower disc, butt contact, buffer spring and anti-fall automatically controlled fixator.High degree of automation of the present invention, frictional resistance is low in lifting process, can have a clear understanding of the trend of work and real time data of controllable device, reduce the development cost of oil gas field, help to improve the technology management level of oil gas field, facilitates realization digitlization oilfield construction.
Description
Technical field
The present invention relates to a kind of controllable devices, are specially a kind of controllable device of gas well water pumping gas production, belong to natural gas
Production technique field.
Background technology
The exploitation later stage of the natural gas well, gas well yield reduce, and fluid-carrying capability is deteriorated, and do not use the situation of other measures
Under, hydrops can not be discharged to ground by wellbore effusion by the well self-ability, such as there are of high cost again using bubble row other measures
The problem of low with efficiency, since the back pressure of hydrops influences, causes the reduction of gas well yield, shortens the exploitation cycle of gas well；Profit
By the use of plunger as the interface for separating gas-liquid, energy is gathered by the gas in shaft bottom itself, it is that gas field is commonly used that lifting is carried out to hydrops
One of artificial lifting way.
In the prior art, Chinese patent application（Publication number：CN104790917A, publication date：On July 22nd, 2015）
Technological core disclosed in " intelligent pole plug water drainage gas production device " is, by installing pressure sensor additional on plunger, to pass through pressure
The head of liquid that force snesor receives to judge the position in gas well at plunger, determines to be driven by battery pack and circuit board
Dynamic motor performs the action that valve opens or closes, uplink or whereabouts so as to fulfill plunger.Shortcoming is, due to gas
Fluid column in well is a kind of gas-liquid polyphase flow in the wellbore, and is existed in the form of dynamic, judges position by head of liquid,
Easily hysteresis and erroneous judgement, therefore, depends merely on the data of pressure sensor offer, it is impossible to accurate to perceive plunger in the wellbore on time
Physical location, can not ensure plunger appropriate location in the wellbore, motor-driven valve door is made to perform the action of corresponding on or off,
The supplementary question of battery powered energy consumption is not also embodied simultaneously；And the mechanical plunger used in the prior art, generally existing and oil pipe
The contact surface frictional resistance of sealing is big, the degree of automation is low, can not learn plunger real working condition, such as：Actual subsidence velocity, actual rising
Speed, ascent stage speed change curves learn that these data are conducive to the reservoir energy of the performance and hole condition and block to product
The global analysis of amount situation and multiphase fluid mechanics, is of great significance.
The content of the invention
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of controllable device of gas well water pumping gas production.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of controllable device of gas well water pumping gas production, bag
Include solar panel, well head data sink, plunger catcher and self locating device body；The self locating device body
Outer wall is equipped with linear bearing sealing ring, displacement sensor and temperature sensor, and wherein displacement sensor monitors self locating device
The speed of body and positioning, temperature sensor monitor the temperature of ambient enviroment；And the bottom outer wall of self locating device body is set
There is centralizer；The self locating device body is internally provided with chargeable battery group, and the top of chargeable battery group is equipped with internal band
There is the vacuum cup of data processor, wherein data processor is placed in vacuum cup, and data processor is protected to be rushed from high/low temperature
The damage hit；The top of the self locating device body is equipped with liquid outlet, bosom position is equipped with channel valve, and liquid outlet
Outer wall be equipped with data butt joint ring；The bottom of the channel valve is equipped with inlet；The liquid outlet and channel valve, inlet
Form a liquid gas passage that can control opening and closing；The channel valve by be respectively provided with double-scallop-hole upper valve block and
Lower disc is overlapped, and upper valve block is fixed, and retarder of the micro machine driving with power output shaft rotates lower disc, makes fan
The position in shape hole is overlapped with staggering, and is opened and closed to realize；Buffer spring, butt contact and column built in the plunger catcher
Anti-fall automatically controlled fixator is filled in, and plunger catcher is connected to well head data sink by conducting wire.
Preferably, the self locating device body upper part is close for the linear bearing sealing ring and tube inner wall of multiple layer combination
With reference to, and the linear bearing sealing ring is the ball of proper alignment on endless metal, using becket as ball-collecting rack, with tube inner wall
For the principle of bearing outer ring, each layer overlapping interlocks, and forms the seal interface of a piston-like.
Preferably, the data processor is a kind of data processor of clock circuit.
Preferably, the solar panel is a kind of solar panel with power generation and storage function, as electricity
Source is connected with conducting wire with the well head data sink, and the well head data sink internal circuit board, with conducting wire with it is described
Butt contact built in plunger catcher is connected.
The beneficial effects of the invention are as follows：The present invention realizes plunger automatic energy supplement, and floor data uploads, automatic decision
Itself accurate location in the wellbore performs lifting and the process to fall in due course, records actual subsidence velocity, actually raising speed
It spends, exempt to salvage automatic capture, sealing means are changed to the sealing means of multi-ply linear bearing combination, solve frictional resistance and leakage
Problem；When self locating device body is when tube inner wall moves, displacement sensor can provide tubing length to data processor
Data, temperature sensor can to data processor provide ambient temperature value, data processor store both data and with from
The clock circuit analysis of band, when oil pipe shift length and temperature data consistent with setting position, data processor is to micro machine
The instruction for opening or closing channel valve is sent, micro machine driving channel valve is closed, and self locating device body is in shaft bottom air pressure
Effect is lower to start lifting upwards；The present invention has system automation degree high, and frictional resistance is low in lifting process, and can have a clear understanding of can
The trend of work and real time data of device are controlled, the development cost of oil gas field is reduced, helps to improve the technical management of oil gas field
Level facilitates realization digitlization oilfield construction.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the structure diagram under self locating device body valve passage closed state；
Fig. 3 is the structure diagram under self locating device body valve passage opening state；
Fig. 4 is plunger catcher inner structure schematic diagram；
Fig. 5 is valve structure schematic diagram above and below self locating device valve；
Fig. 6 is well head data sink fundamental diagram；
Fig. 7 is self locating device body fundamental diagram；
Fig. 8 is the mounting structure schematic diagram of plunger catcher.
In figure：Solar panel 1, well head data sink 2, plunger catcher 3, self locating device body 4, data pair
Connect ring 5, liquid outlet 6, linear bearing sealing ring 7, displacement sensor 8, channel valve 9, retarder 10, temperature sensor 11, into
Liquid mouth 12, micro machine 13, data processor 14, vacuum cup 15, chargeable battery group 16, centralizer 17, upper valve block 18, lower disc
19th, butt contact 20, buffer spring 21, anti-fall automatically controlled fixator 22.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
It please refers to Fig.1 shown in -8, a kind of controllable device of gas well water pumping gas production, including solar panel 1, well head number
According to receiver 2, plunger catcher 3 and self locating device body 4, fall depth when the self locating device body 4 enters well is lifted
Rise is set with working systems such as the docking times of well head data sink 2 by well head data sink 2；It is described from
The outer wall of positioner body 4 is equipped with linear bearing sealing ring 7, displacement sensor 8 and temperature sensor 11, wherein displacement sensing
Device 8 is to monitor the speed of self locating device body 4 and positioning, temperature sensor 11 monitors the temperature of ambient enviroment；And it makes by oneself
The bottom outer wall of position device body 4 is equipped with centralizer 17；The self locating device body 4 is internally provided with chargeable battery group 16,
And the top of chargeable battery group 16 is equipped with the internal vacuum cup 15 for carrying data processor 14, wherein data processor 14 is placed on
In vacuum cup 15, protect data processor 14 from the damage of high/low-temperature impact；The top of the self locating device body 4 is equipped with
Liquid outlet 6, bosom position are equipped with channel valve 9, and the outer wall of liquid outlet 6 is equipped with data butt joint ring 5；The channel valve
9 bottom is equipped with inlet 12；The liquid outlet 6 can control opening and closing with channel valve 9, the composition of inlet 12 one
Liquid gas passage；The channel valve 9 is overlapped by the upper valve block 18 and lower disc 19 for being respectively provided with double-scallop-hole, upper valve block
18 is fixed, and retarder 10 of the driving of micro machine 13 with power output shaft rotates lower disc 19, makes the position weight of scallop hole
It closes and staggers, opened and closed to realize；Buffer spring 21, butt contact 20 and plunger are anti-fall built in the plunger catcher 3
Automatically controlled fixator 22, and plunger catcher 3 is connected to well head data sink 2, it is necessary to be taken out out of well self-positioning by conducting wire
During device body 4, recovery command is sent by the well head data sink 2, when the self locating device body 4 again with institute
When stating the docking of well head data sink 2, after the anti-fall automatically controlled fixator 22 fixes the self locating device body 4, wait
Operating personnel take out.
As a kind of technical optimization scheme of the present invention, 4 top of self locating device body is linear for multiple layer combination
Bearing seal ring 7 is combined closely with tube inner wall, and the linear bearing sealing ring 7 is the circle of proper alignment on endless metal
Pearl, using becket as ball-collecting rack, using tube inner wall as the principle of bearing outer ring, the overlapping of each layer interlocks, and forms the close of piston-like
Interface is sealed, it is rolling friction to make frictional force of the self locating device body 4 on tube inner wall.
As a kind of technical optimization scheme of the present invention, the data processor 14 is a kind of data of clock circuit
Processor 14, when self locating device body 4 is when tube inner wall moves, institute's displacement sensors 8 can be to the data processing
Device 14 provides the tubing length data being subjected to displacement, and the temperature sensor 11 can provide its institute to the data processor 14
Locate the ambient temperature value of position, the data processor 14 stores both data and the clock circuit with carrying is analyzed, and works as oil
When pipe shift length data and temperature data consistent with setting position, data processor 14 sends to micro machine 13 and opens or closes
The instruction of channel valve 9, micro machine 13 drive channel valve 9 to close, and self locating device body 4 starts under the gas pressure of shaft bottom
Lifting, channel valve 9 are opened upwards, and self locating device body 4 then starts to fall under the effect of gravity, and so on, complete well
The purpose of cylinder hydrops lifting.
As a kind of technical optimization scheme of the present invention, the solar panel 1 is a kind of with power generation and electric power storage work(
The solar panel 1 of energy, is connected as power supply conducting wire with the well head data sink 2, the well head data sink 2
Internal circuit board is connected with conducting wire with the butt contact 20 built in the plunger catcher 3, when the self locating device body 4
Butt joint ring 5 after into the plunger catcher 3 on self locating device body 4 and the butt contact in the plunger catcher 3
20 are connected, after docking, 16 automatic charging of chargeable battery group in the self locating device body 4, and complete self locating device
4 course of work data receiver of body, instruction are sent, and data then are uploaded to manager.
The present invention is when in use：
A, because of the difference according to each oilfield reservoir block temperature coefficient, there are relatively stable direct ratio passes with depth for downhole temperature
System.Self locating device body 4 with host computer can be connected, carried out according to the well history data for implementing Plunger Lift wellbore effusion
Working system is set, and set content includes well temperature coefficient, shaft bottom lifting initial position, terminal drop-off positions is lifted, with well
Mouth 2 docking time of data sink；
Plunger catcher 3 is installed among the wellhead oil tree master valve and test strobe of oil/gas well b, while by data receiver
Device 2, solar panel 1 is fixed on well head, and corresponding connecting wire is connected with plunger catcher 3；
C, the gaslift self locating device that working system setting finishes, starts to work, at this time gaslift self locating device body after energization
Internal channel gate 9 is located at opening, and operator opens test strobe and master valve on production tree, by gaslift by well control requirement
Self locating device body 4 is positioned in oil pipe and closes well head test strobe, at this time the position above gaslift self locating device body 4
Displacement sensor 8 is close to tube inner wall and is begun to decline, displacement sensor 8 start the data being subjected to displacement to itself and tube inner wall and
The temperature value being collected into is sent to data processor 14 by temperature sensor 11, due to leading in gaslift self locating device body 4
Road gate 9 is opened, and in dropping process, gas and liquid in well enter from liquid inlet 12, through passage gate 9, from liquid
Outlet 6 is flowed out, and the steel ball on the linear bearing sealing ring 7 of multilayer is rolled in tube inner wall, and gaslift self locating device body is in well
Interior to be declined with faster speed, shift value increase, temperature value also increases, when falling on set depth instantly, temperature value
Should be corresponding with depth value, data processor 14 sends the retarder 10 that instruction makes the driving of micro machine 13 drive power output shaft at this time
It rotates, the lower disc 19 for the channel valve 9 being connected on power output shaft is rotated, made on the lower disc 19 of channel valve 9 together
Scallop hole and channel valve on scallop hole on valve block 18 stagger, channel valve 9 is closed, gaslift self locating device body 4 this
When the closure interface of a similar piston is formd in oil pipe, downhole gas energy starts to gather expansion, and jack-up gaslift is made by oneself
Position device body 4 and the liquid of plunger upper part carry out lifting traveling, temperature sensor 8 and displacement sensor to pithead position together
11 continue to provide position and temperature real time data to data processor simultaneously, when reaching the upward position terminal of setting, data
Processor 14, which sends instruction, makes the driving of micro machine 13 that the retarder 10 of power output shaft be driven to rotate, and is connected on power output shaft
The lower disc 19 of channel valve 9 rotates together, makes on scallop hole and the channel valve on channel valve lower disc 19 on valve block 18
Scallop hole overlap, channel valve 9 opens, and gaslift self locating device body 4 falls under the effect of gravity again, at data
Memory in reason device 14 stores related data always.
When wherein centralizer 17 makes the gaslift self locating device body 4 move up and down in oil pipe, the work of attitude stabilization is played
With；Gaslift self locating device body 4 carries out timing and reports the working system uploaded, and the process data that lifting declines every time all can be
Data exchange is carried out when being docked with well head data sink 2, and pipe is uploaded to by the communication module of well head data sink 2 in time
Reason person.During docking, the power management module in well head data sink 2 also can be to filling in gaslift self locating device body 4
Battery pack 16 carries out appropriate electric energy supplement；To prevent gaslift self locating device body 4 from being impacted when reaching in well head catcher 3
Damage, well head plunger catcher 3 is interior to be provided with buffer spring 21, when manager needs to take out gaslift self locating device sheet out of well
During body 4, command adapted thereto is inputted from the keyboard of well head data sink 2, well is up in next gaslift self locating device body 4
When oral pillar plug catcher 3 is docked with well head data sink 2, the automatically controlled anti-fall fixator 22 of plunger in well head plunger catcher 3
Gaslift self locating device body 4 can be fixed in well head plunger catcher 3, staff is waited to take out.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of controllable device of gas well water pumping gas production, including solar panel, well head data sink, plunger catcher
With self locating device body；It is characterized in that：The outer wall of the self locating device body is equipped with linear bearing sealing ring, displacement passes
Sensor and temperature sensor, wherein displacement sensor come to monitor the speed of self locating device body and positioning, temperature sensor
Monitor the temperature of ambient enviroment；And the bottom outer wall of self locating device body is equipped with centralizer；The self locating device body
Chargeable battery group is internally provided with, and the top of chargeable battery group is equipped with the internal vacuum cup for carrying data processor, wherein data
Processor is placed in vacuum cup, protects data processor from the damage of high/low-temperature impact；The self locating device body
Top is equipped with liquid outlet, bosom position is equipped with channel valve, and the outer wall of liquid outlet is equipped with data butt joint ring；The passage
The bottom of valve is equipped with inlet；The liquid outlet can control opening and closing with channel valve, inlet composition one
Liquid gas passage；The channel valve is overlapped by the upper valve block and lower disc for being respectively provided with double-scallop-hole, and upper valve block is fixed not
Dynamic, retarder of the micro machine driving with power output shaft rotates lower disc, the position of scallop hole is made to overlap with staggering, to realize
It opens and closes；Buffer spring, butt contact and the anti-fall automatically controlled fixator of plunger built in the plunger catcher, and plunger captures
Device is connected to well head data sink by conducting wire.
2. a kind of controllable device of gas well water pumping gas production according to claim 1, it is characterised in that：The self-positioning dress
It puts the linear bearing sealing ring that body upper part is multiple layer combination to combine closely with tube inner wall, and the linear bearing sealing ring is
The ball of proper alignment on endless metal, using becket as ball-collecting rack, using tube inner wall as the principle of bearing outer ring, each layer overlapping is handed over
Mistake forms the seal interface of a piston-like.
3. a kind of controllable device of gas well water pumping gas production according to claim 1, it is characterised in that：The data processing
Device is a kind of data processor of clock circuit.
4. a kind of controllable device of gas well water pumping gas production according to claim 1, it is characterised in that：The solar-electricity
Pond plate is a kind of solar panel with power generation and storage function, as power supply conducting wire and the well head data sink
It is connected, and the well head data sink internal circuit board, it is connected with conducting wire with the butt contact built in the plunger catcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995651.8A CN108071364A (en) | 2016-11-12 | 2016-11-12 | A kind of controllable device of gas well water pumping gas production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995651.8A CN108071364A (en) | 2016-11-12 | 2016-11-12 | A kind of controllable device of gas well water pumping gas production |
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| CN108071364A true CN108071364A (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610995651.8A Pending CN108071364A (en) | 2016-11-12 | 2016-11-12 | A kind of controllable device of gas well water pumping gas production |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534271A (en) * | 2018-11-19 | 2019-03-29 | 长江大学 | Flow conductivity test in can automatic liquid supply intermediate receptacle and its application method |
| CN109869118A (en) * | 2019-04-15 | 2019-06-11 | 成都百胜野牛科技有限公司 | Conduction device and wellhead assembly |
| CN110821817A (en) * | 2019-11-20 | 2020-02-21 | 哈尔滨艾拓普科技有限公司 | Drainage gas production intelligence plunger |
| CN110924890A (en) * | 2019-11-18 | 2020-03-27 | 西安思坦仪器股份有限公司 | Rechargeable wellhead device and plunger gas lift drainage gas production system |
| CN111335843A (en) * | 2020-02-09 | 2020-06-26 | 成都佳广知科技有限公司 | Free-moving cock device in natural gas well |
| CN111577245A (en) * | 2020-05-19 | 2020-08-25 | 成都佳广知科技有限公司 | Intelligent water lifting gas production system and method for natural gas well |
| CN113027395A (en) * | 2021-03-25 | 2021-06-25 | 伍政 | Intelligent control method and system for golf type gas lift ball gas lift oil production |
| CN115012841A (en) * | 2022-06-29 | 2022-09-06 | 山东龙兴石油设备有限公司 | Oil development well head back pressure control device |
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Application publication date: 20180525 |