CN109209304A - A kind of well plunger control system - Google Patents
A kind of well plunger control system Download PDFInfo
- Publication number
- CN109209304A CN109209304A CN201811297613.0A CN201811297613A CN109209304A CN 109209304 A CN109209304 A CN 109209304A CN 201811297613 A CN201811297613 A CN 201811297613A CN 109209304 A CN109209304 A CN 109209304A
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- oil pressure
- well
- gauge outfit
- interface
- valve
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- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000005514 two-phase flow Effects 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 21
- 241000191291 Abies alba Species 0.000 claims description 10
- 230000006837 decompression Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 2
- 241000521257 Hydrops Species 0.000 description 8
- 206010030113 Oedema Diseases 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 206010051986 Pneumatosis Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 210000004712 air sac Anatomy 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
- E21B43/122—Gas lift
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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)
- Geophysics (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a kind of well plunger control systems, it is related to natural gas facility technical field, invention improves existing well plunger control system using device synthesis such as control gauge outfit, arrival sensor, Pneumatic diaphragm valve, solenoid valve, ACF two-phase flow meters, it can be realized the accurate judgement to liquid slug, in conjunction with ACF two-phase flow meter, individual well can be produced into gas, Liquid output is effectively measured, gas phase measuring accuracy reaches as high as 1%, Metering precision is up to 10%, there is air-liquid yield accurate measurement, it can better optimized production process and system.
Description
Technical field
The invention belongs to natural gas facility technical fields, are related to wellhead assembly, it is especially a kind of be low pressure, it is low yield, low rich
The strong complicated gas field of degree, heterogeneity, which steadily produces, provides a kind of control system of new technology approach.
Background technique
With the exploitation in gas field, the quantity for managing individual well rises year by year, and water-producing gas well is increasing, and water yield gradually increases
Greatly.Due to Single Gas Well low output, fluid-carrying capability is poor, be easy to cause shaft bottom hydrops, adversely affects to gas well liquid loading, row
The work of hydromining gas becomes increasingly conspicuous.
In the prior art, plunger lift water pumping gas production system is generally installed, the energy of plunger lift is mainly derived from storage
In the presence of the high pressure gas in set pressure pipe；By plunger lift water pumping gas production, shaft bottom hydrops can be excluded effectively, but at present technically
The judgement or metering for lifting fluid column for plunger are always all in space state.
Summary of the invention
In view of this, the present invention is using control gauge outfit, arrival sensor, Pneumatic diaphragm valve, solenoid valve, ACF two phase flow stream
The device synthesis such as meter improve existing well plunger control system, can be realized the accurate judgement to liquid slug, in conjunction with ACF two
Mutually stream flowmeter can effectively be measured individual well production gas, Liquid output, and gas phase measuring accuracy reaches as high as 1%, Metering
Precision has air-liquid yield accurate measurement up to 10%, can better optimized production process and system.
The present invention is solved the above problems by following technological means:
A kind of well plunger control system, which is characterized in that including according to the control gauge outfits of different production systems, for real
When acquisition oil pressure arrival sensor, for execute drive a well with the Pneumatic diaphragm valve of closing well, be used to control the air bladder
The solenoid valve of valve, in which:
The gauge outfit first interface of the control gauge outfit is spare interface for installing corresponding plug, controls the gauge outfit of gauge outfit
Second connects the remote transmission device for connecting plunger, and the gauge outfit third interface for controlling gauge outfit connects for connecting the magnet valve first of solenoid valve
Mouthful, the 4th interface of gauge outfit for controlling gauge outfit is used to connect the sensing second interface for reaching sensor；The sensing up to sensor
First interface is used for the pressure of real-time measurement oil pressure；The magnet valve second of the membrane valve interface connection solenoid valve of the Pneumatic diaphragm valve
Interface；The magnet valve third interface of the solenoid valve connects the gas source after the liquid separation of christmas tree casing, decompression.
It further, further include the ACF two-phase flow meter for being installed on block valve downstream on pipeline, outer defeated valve upstream.
Further, the control gauge outfit is installed on the set pressure side of christmas tree by pressure flange.
Further, the lower position that lubricator is installed on up to sensor.
Further, the Pneumatic diaphragm valve is installed on christmas tree needle-valve upstream.
Further, after the solenoid valve is installed on the relevant apparatus of christmas tree set pressure side liquid separation decompression.
Further, which analyzes and determines out fluid column arrival time using the standard deviation of oil pressure with plunger control system,
Including following judgment step:
A1) continuous acquisition and record oil pressure data (sample oil pressure value)；
A2 standard deviation calculation) is carried out to the oil pressure data sample of record, it is flat to real-time acquisition oil pressure value and sample oil pressure
Mean value is made comparisons；
A3 it) calculates whether standard deviation values are greater than preset threshold, calculates whether actual hydraulic data is greater than sample oil
Flatten mean value；
A4) when calculated standard deviation values are greater than preset threshold and actual hydraulic data is greater than sample oil pressure average value
When, system then judges that fluid column reaches；
A5) when calculated standard deviation values are less than preset threshold or actual hydraulic data is less than sample oil pressure average value
When, go to step A1).
Further, the judgment step further include: at the initial stage of driving a well, system acquires oil pressure value in real time and sample oil pressure is flat
Mean value is compared, and is put down when monitoring that standard deviation values are greater than preset threshold and acquire oil pressure value in real time greater than sample oil pressure
When mean value, system may determine that the arrival time of fluid column.
A kind of well of the invention is had the advantages that with plunger control system
The present invention is using devices such as control gauge outfit, arrival sensor, Pneumatic diaphragm valve, solenoid valve, ACF two-phase flow meters
Synthesis improvement existing well plunger control system, can be realized the accurate judgement to liquid slug, in conjunction with ACF two-phase flow
Meter can effectively be measured individual well production gas, Liquid output, and gas phase measuring accuracy reaches as high as 1%, and Metering precision is reachable
10%, there is air-liquid yield accurate measurement, it can better optimized production process and system.
Technical solution using oil pressure standard deviation comparison preset threshold of the invention, in combination with real-time oil pressure and sample
Oil pressure average value comparison technical solution, using dual judgement not only it is possible to prevente effectively from because pressure sensor precision itself with
Influence of noise brought by stability problem, and individual well production gas, Liquid output can effectively be measured, gas phase measuring accuracy
1% is reached as high as, Metering precision is up to 10%.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of well plunger control system provided by the invention；
Fig. 2 is the structural schematic diagram of control gauge outfit provided by the invention；
Fig. 3 is the structural schematic diagram provided by the invention for reaching sensor；
Fig. 4 is the structural schematic diagram of Pneumatic diaphragm valve provided by the invention；
Fig. 5 is the structural schematic diagram of solenoid valve provided by the invention；
Fig. 6 is the data and curves of oil pressure and casing pressure in the course of work of the present invention；
Fig. 7 is the data and curves of course of work Plays deviation and oil pressure fiducial value of the present invention；
Fig. 8 is the data and curves of instantaneous liquid measure and tolerance in the course of work of the present invention.
In figure, 1 is control gauge outfit；101 be gauge outfit first interface；102 be gauge outfit second interface；103 connect for gauge outfit third
Mouthful；104 be the 4th interface of gauge outfit；2 be arrival sensor；201 be sensing first interface；202 be sensing second interface；3 be gas
Dynamic membrane valve；301 be membrane valve interface；4 be solenoid valve；401 be magnet valve first interface；402 be magnet valve second interface；403 are
Magnet valve third interface；5 be plunger；6 be lubricator.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.Art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Below with reference to attached drawing, the present invention is described in detail.
As shown in Figure 1, a kind of well plunger control system, including according to different production systems control gauge outfit 1, for real
When acquisition oil pressure arrivals sensor 2, for execute drive a well with the Pneumatic diaphragm valve 3 of closing well, be used for control it is described pneumatically it is thin
The solenoid valve 4 of film valve 3.The system further includes the ACF two-phase flow for being installed on block valve downstream on pipeline, outer defeated valve upstream
Meter.
In Fig. 1, well is mounted on casing programme with plunger control system, and control gauge outfit 1 is installed on by pressure flange adopts
The set pressure side of gas tree, the lower position of lubricator 6 is installed on up to sensor 2, and Pneumatic diaphragm valve 3 is installed on christmas tree needle-valve
Trip, after solenoid valve 4 is installed on the relevant apparatus of christmas tree set pressure side liquid separation decompression.
Specifically, control gauge outfit 1 is gone up according to the time switch of setting, time-optimized, pressure microlitre, pressure, pressure is fallen
The systems such as fall to drive a well.Fluid column is lifted under the pressure of casing pressure when plunger 5 slowly to rise, and reaches the acquisition oil pressure in real time of sensor 2
And correlation data calculation is carried out to judge whether fluid column reaches, when judging that liquid lives to reach, reaches sensor 2 and send hydrops instruction
Start hydrops metering to ACF two-phase flow meter；After liquid, which is lived, have been drained, plunger 5 reaches top, reaches sensor 2 and detects
Plunger 5 reaches, and sends pneumatosis instruction to ACF two-phase flow meter and restores pneumatosis metering；Plunger controls gauge outfit 1 according to the system of setting
Degree reaches the oil pressure that sensor 2 acquires to control closing well, and the drain that drives a well of next round is waited to produce gas.
It should be further noted that control gauge outfit 1 is partially installed at casing pressure, from set in conjunction with the structure of Fig. 1 christmas tree
Pressure carries out casing pressure measurement at pressure, and pressure is connected to solenoid valve 4 by liquid separation decompression again from casing pressure, as Pneumatic diaphragm valve 3
Supply gas pressure.
As shown in Figures 2 to 5, the gauge outfit first interface 101 for controlling gauge outfit 1 is that spare interface is corresponding stifled for installing
Head, the gauge outfit second of control gauge outfit 1 connect 102 for connecting the remote transmission device of plunger 5, control the gauge outfit third interface 103 of gauge outfit 1
For connecting the magnet valve first interface 401 of solenoid valve 4, the 4th interface 104 of gauge outfit of control gauge outfit 1 reaches sensor for connecting
2 sensing second interface 202；The pressure of real-time measurement oil pressure is used for up to the sensing first interface 201 of sensor 2；Air bladder
The membrane valve interface 301 of valve 3 connects the magnet valve second interface 402 of solenoid valve 4；The connection of magnet valve third interface 403 of solenoid valve 4 is adopted
Gas source after the liquid separation of gas tree casing, decompression.
Wherein, control gauge outfit 1 is for acquiring oil pressure, the calculating of real-time perfoming data in real time to judge whether fluid column reaches, sentences
Whether disconnected plunger reach, data for sending instructions to ACF two-phase flow meter, acquiring flowmeter etc..ACF two-phase flow meter
Function is to reach the instruction that sensor is sent according to plunger to carry out hydrops and the metering of pneumatosis etc.
The well analyzes and determines out fluid column arrival time using the standard deviation of oil pressure with plunger control system, including sentences as follows
Disconnected step:
A1) continuous acquisition and record oil pressure data (sample oil pressure value)；
A2 standard deviation calculation) is carried out to the oil pressure data sample of record, it is flat to real-time acquisition oil pressure value and sample oil pressure
Mean value is made comparisons；
A3 it) calculates whether standard deviation values are greater than preset threshold, calculates whether actual hydraulic data is greater than sample oil
Flatten mean value；
Specifically, standard deviation is the degree of scatter for analyzing data distribution, and when data distribution is bigger, the mark of calculating
Quasi- deviation is bigger, and as shown in Figure 6 after driving a well, the numerical value change of oil pressure is bigger, then calculates standard deviation value at this time
It is bigger.
A4) when calculated standard deviation values are greater than preset threshold and actual hydraulic data is greater than sample oil pressure average value
When, system then judges that fluid column reaches；
Specifically, determining a reasonable standard deviation threshold according to the data of many experiments first, working as standard deviation value
When the value that the oil pressure value acquired in real time is made comparisons with sample oil pressure average value is all larger than the standard deviation threshold of setting, it is judged as
Liquid lives to reach well head.
A5) when calculated standard deviation values are less than preset threshold or actual hydraulic data is less than sample oil pressure average value
When, go to step A1.
It should be noted that judgment step further include: at the initial stage of driving a well, system acquires oil pressure value in real time and sample oil pressure is flat
Mean value is compared, and is put down when monitoring that standard deviation values are greater than preset threshold and acquire oil pressure value in real time greater than sample oil pressure
When mean value, system may determine that the arrival time of fluid column.
It should be further noted that control system of the present invention was realized by following steps:
Plunger controls gauge outfit 1 according to the production system of setting or the arrival collected oil pressure data of sensor 2 to control out
Well, plunger is lifted fluid column under the high pressure of casing pressure and is slowly risen at this time, and reaching sensor 2, acquisition oil pressure carries out standard deviation in real time
The calculating made comparisons with oil pressure with sample oil pressure average value judges whether liquid firmly reaches well head；Plunger controls gauge outfit at the same time
1 starts to carry out timing to the plunger rise time
Further, when determine liquid live just really reaches well head when, reach sensor 2 and send hydrops and instruct to ACF two-phase
Flowmeter is flowed, ACF two-phase flow meter stops pneumatosis metering, starts hydrops metering.
Further, it when arrival sensor 2 detects that plunger reaches well head, reaches sensor 2 and sends instructions to ACF two-phase
Flowmeter is flowed, ACF two-phase flow meter restores pneumatosis metering, stops hydrops metering.At the same time, plunger control gauge outfit 1 stops
To the timing of plunger rise time, start to carry out timing to plunger time of afterflow；
Further, when plunger control gauge outfit 1 according to the production system of setting or reaches the collected oil pressure number of sensor 2
After closing well, plunger controls timing of the stopping of gauge outfit 1 to plunger time of afterflow；Plunger falls, and waits the drain production that drives a well next time
Gas.
Practical work process is as shown in Fig. 6, Fig. 7, Fig. 8.
In Fig. 6, after plunger well drives a well, oil jacket pressure declines therewith.Over time, oil pressure decline slowly tends to be flat
Surely, plunger 5 is in ascent stage at this time, when plunger 5 lift liquid note rise reach well head when, due to lubricator and pneumatic thin
The throttling action of film valve 3, oil pressure can increased, and oil pressure continues to increase until plunger 5 reaches well head, and plunger lifts fluid column at this time
It is completely exhausted out.
In Fig. 7, plunger system continuous acquisition oil pressure carries out standard deviation analysis, oil pressure to acquisition data (referred to as sample)
Variation is bigger, and standard deviation values are bigger.So, when fluid column reaches top, oil pressure increase will cause standard deviation to increase,
Rationally setting standard deviation threshold, can judge fluid column arrival time.At the initial stage of driving a well, larger downward trend is presented in oil pressure,
Caused standard deviation is also larger, is re-introduced into the mode that acquisition oil pressure value is made comparisons with sample oil pressure average value in real time, works as prison
When measuring standard deviation value greater than threshold value, if acquisition oil pressure value is greater than sample oil pressure average value in real time, can determine whether it is that fluid column arrives
Up to the moment.Using standard deviation and the dual judgement of oil pressure fiducial value, it is possible to prevente effectively from because pressure sensor precision itself with
Influence of noise brought by stability problem.
In Fig. 8, the measuring principle of differential pressure, inside collection are generated by throttling element using fluid using ACF two-phase flow meter
At gas-liquid two-phase Measurement Algorithm model.When fluid column reaches, plunger controller is issued to flowmeter and is instructed, and indicates that it starts to measure
Liquid phase flow, when plunger reaches top, i.e., fluid column is excluded completely, then plunger controller is issued to flowmeter restores meter
Measure the instruction of gas phase flow rate.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of well plunger control system, which is characterized in that including being driven a well and closing well according to a variety of production systems to control
Control gauge outfit (1), the arrival sensor (2) for acquiring oil pressure in real time, for executing the Pneumatic diaphragm valve to drive a well with closing well
(3), it is used for control the solenoid valve of the Pneumatic diaphragm valve (3) (4), in which:
The gauge outfit first interface (101) of control gauge outfit (1) is spare interface for installing corresponding plug, controls gauge outfit
(1) gauge outfit second connects (102) for connecting the remote transmission device of plunger (5), controls the gauge outfit third interface (103) of gauge outfit (1)
For connecting the magnet valve first interface (401) of solenoid valve (4), the 4th interface (104) of gauge outfit of control gauge outfit (1) is for being connected to
Up to the sensing second interface (202) of sensor (2)；The sensing first interface (201) up to sensor (2) is used for real-time measurement
The pressure of oil pressure；The magnet valve second interface of membrane valve interface (301) connection solenoid valve (4) of the Pneumatic diaphragm valve (3)
(402)；The magnet valve third interface (403) of the solenoid valve (4) connects the gas source after the liquid separation of christmas tree casing, decompression.
2. a kind of well plunger control system as described in claim 1, which is characterized in that further include being installed on pipeline to be truncated
The ACF two-phase flow meter in valve downstream, outer defeated valve upstream.
3. a kind of well plunger control system as claimed in claim 2, which is characterized in that the control gauge outfit (1) is by taking
Pressure flange is installed on the set pressure side of christmas tree.
4. a kind of well plunger control system as claimed in claim 3, which is characterized in that arrival sensor (2) installation
Lower position in lubricator (6).
5. a kind of well plunger control system as claimed in claim 4, which is characterized in that the Pneumatic diaphragm valve (3) is installed on
Christmas tree needle-valve upstream.
6. a kind of well plunger control system described in claim 5, which is characterized in that the solenoid valve (4) is installed on gas production
After the relevant apparatus of tree set pressure side liquid separation decompression.
7. a kind of well plunger control system described in claim 1, which is characterized in that sentenced using the standard deviation analysis of oil pressure
Disconnected fluid column arrival time, including following judgment step out:
A1) continuous acquisition and record oil pressure data；
A2 standard deviation calculation) is carried out to the oil pressure data sample of record, to real-time acquisition oil pressure value and oil pressure sample mean
It makes comparisons calculating；
A3) calculate whether standard deviation values are greater than preset threshold, calculating actual hydraulic data, whether to be greater than sample oil pressure flat
Mean value；
A4) when calculated standard deviation values are greater than preset threshold and actual hydraulic data is greater than sample oil pressure average value, it is
System then judges that fluid column reaches；
A5 it) when calculated standard deviation values are less than preset threshold or actual hydraulic data is less than sample oil pressure average value, jumps
Go to step A1).
8. a kind of well plunger control system as claimed in claim 7, which is characterized in that the judgment step further include: opening
Well initial stage, system acquire oil pressure value in real time and are compared with sample oil pressure average value, when monitoring that it is pre- that standard deviation values are greater than
If threshold value and in real time acquisition oil pressure value be greater than sample oil pressure average value when, system may determine that the arrival time of fluid column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297613.0A CN109209304B (en) | 2018-11-02 | 2018-11-02 | Control method of well plunger control system |
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|---|---|---|---|
| CN201811297613.0A CN109209304B (en) | 2018-11-02 | 2018-11-02 | Control method of well plunger control system |
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| CN109209304B CN109209304B (en) | 2024-01-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878689A (en) * | 2019-11-21 | 2020-03-13 | 西安安森智能仪器股份有限公司 | Gas-liquid metering method and system for well plunger gas lift device |
| CN110984909A (en) * | 2019-11-21 | 2020-04-10 | 西安安森智能仪器股份有限公司 | Automatic anti-freezing method and system for natural gas wellhead external pipeline |
| CN112943179A (en) * | 2021-01-14 | 2021-06-11 | 中国石油天然气股份有限公司 | Plunger gas lift production system optimization control method |
| GB2595327A (en) * | 2020-01-31 | 2021-11-24 | Silverwell Tech Ltd | Well operation optimisation |
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| CN110878689A (en) * | 2019-11-21 | 2020-03-13 | 西安安森智能仪器股份有限公司 | Gas-liquid metering method and system for well plunger gas lift device |
| CN110984909A (en) * | 2019-11-21 | 2020-04-10 | 西安安森智能仪器股份有限公司 | Automatic anti-freezing method and system for natural gas wellhead external pipeline |
| CN110984909B (en) * | 2019-11-21 | 2022-02-18 | 西安安森智能仪器股份有限公司 | Automatic anti-freezing method and system for natural gas wellhead external pipeline |
| GB2595327A (en) * | 2020-01-31 | 2021-11-24 | Silverwell Tech Ltd | Well operation optimisation |
| US11459862B2 (en) | 2020-01-31 | 2022-10-04 | Silverwell Technology Ltd. | Well operation optimization |
| GB2595327B (en) * | 2020-01-31 | 2023-12-27 | Silverwell Tech Ltd | Well operation optimization |
| CN112943179A (en) * | 2021-01-14 | 2021-06-11 | 中国石油天然气股份有限公司 | Plunger gas lift production system optimization control method |
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| CN109209304B (en) | 2024-01-16 |
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