CN105927195B - A kind of natural gas well intelligent dosing method and the system for realizing this method - Google Patents
A kind of natural gas well intelligent dosing method and the system for realizing this method Download PDFInfo
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- CN105927195B CN105927195B CN201610380371.6A CN201610380371A CN105927195B CN 105927195 B CN105927195 B CN 105927195B CN 201610380371 A CN201610380371 A CN 201610380371A CN 105927195 B CN105927195 B CN 105927195B
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- 239000002343 natural gas well Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 20
- 239000003129 oil well Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 238000005259 measurement Methods 0.000 description 9
- 239000006260 foam Substances 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 5
- 239000004088 foaming agent Substances 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010276 construction Methods 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
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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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)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of natural gas well intelligent dosing method and the system for realizing this method, the present invention is by testing the corresponding relation established between pressure difference variable quantity and chemical feeding quantity between natural gas well oil pressure, casing pressure, and corresponding relation is stored in control unit, corresponding chemical feeding quantity can be calculated by online acquisition pressure difference during the dosing of reality, realize intelligence filling；The problem of human resources consumption is very big caused by can avoiding manual operation using adding method thereof of the present invention, production management cost is high；Loading system of the present invention uses pipeline type structure, that is a fluid reservoir conveys medicament by pipe-line system to multiple pressure pans for being arranged on natural gas well scene, by pressure pan to natural gas well dosing, the problem of existing installing type chemicals dosing plant causes installation operation to bother is avoided.
Description
Technical field
The present invention relates to petroleum and petrochemical industry natural gas technical field, and in particular to a kind of natural gas well intelligent dosing method and reality
The system of existing this method.
Background technology
With the exploitation of oil gas field, produced problem also increasingly shows in gas well liquid loading.Oil gas field producing well wellbore effusion
Problem has seriously affected the normal production of gas well.
With the decline of stratum energy, production Gas Reservoirs yield declines therewith, and the flow velocity of taking of natural gas takes liquid less than critical
Flow velocity, now output water can not be taken out of from pit shaft by the energy of natural gas, pit shaft produces hydrops, with the increasing of hydrops
Add, gas well yield drastically declines, if taken no action to, gas well will kill payzone because of wellbore effusion and be unable to aerogenesis.In gas
In well recovery process, often need to measure the degree of gas well plug-ging, and using the method for filling foaming agent to pit shaft, utilize natural gas
Agitation foam is produced in pit shaft, the foam of low-density can reduce pressure difference of the wellbore effusion to shaft bottom, by relatively low day
Wellbore effusion can be discharged pit shaft by right flow of air speed in a manner of foam, maintain the normal production of gas well, this method
Foam drainage gas recovery technique.
Existing foam drainage gas recovery mainly uses people's dosing method, and artificial dosing method is risen what is prepared
Infusion mixing liquid is injected by Vehicle loaded pump from proof wellhead oil casing annular space or oil pipe, and pump and pharmacy jar are arranged on special-purpose vehicle, are utilized
The power of bubble row's car drives the operation of pump.It is mainly characterized by it is easy for construction, investment it is big, quick.But due to gas field area is big,
Well number is more, and artificial foam drainage gas recovery is influenceed by vehicle condition, road conditions, and very big, production management cost is consumed in human resources
It is high.Therefore, carrying out gas well in gas field and intelligently connect the experiment of injecting device has become certainty.
The content of the invention
It is an object of the invention to provide a kind of natural gas well intelligent dosing method, solves existing foam drainage gas recovery work
Skill uses the problem of human resources consumption is very big, production management cost is high caused by artificial dosing.
In addition, the present invention also provides a kind of natural gas well intelligent dosing system.
The present invention is achieved through the following technical solutions：
A kind of natural gas well intelligent dosing method, comprises the following steps：
1), the foundation of corresponding relation：
A, oil pressure and casing pressure are gathered by the pressure sensor of oil wells in field, calculates the pressure difference of oil pressure and casing pressure, one
The amount of a wellbore effusion corresponding to pressure difference；
B, K part medicaments are added, K parts are the volume of dosing；
C, oil pressure and casing pressure are resurveyed after dosing, calculates the pressure difference of oil pressure and casing pressure, so draws chemical feeding quantity K values pair
Pressure difference variable quantity before and after the dosing answered；
D, circulating repetition a, b, step c, change K values, obtain some groups of pressure difference variable quantities and corresponding medicament chemical feeding quantity
Data, the corresponding relation established by above-mentioned some groups of data between pressure difference variable quantity and corresponding chemical feeding quantity, by corresponding relation
Input control unit memory storage；
2), the pressure sensor of oil wells in field gathers oil pressure and casing pressure in real time, and the signal of collection is passed into control unit,
Pressure difference is calculated in control unit, control unit calculates pressure difference variable quantity according to the pressure difference standard value of setting, further according to depositing
The corresponding relation of storage calculates chemical feeding quantity corresponding to current differential pressure；
3), control unit calculates and signal is passed into measuring pump after chemical feeding quantity, and send instruction open measuring pump and
Magnetic valve, chemical feeding quantity is controlled by measuring pump, realize intelligence filling.
It is existing realize natural gas well dosing method be：The volume of wellbore effusion in the in-site measurement natural gas well, according to
The volume of the wellbore effusion of measurement adds medicament (i.e. foaming agent) using artificial dosing method, and artificial dosing method is to have matched somebody with somebody
The foaming agent mixing liquid made is injected by Vehicle loaded pump from proof wellhead oil casing annular space or oil pipe, and pump and pharmacy jar are arranged on special-purpose vehicle
On, the operation of pump is driven using the power of bubble row's car；Because gas field is relatively scattered, not only waste of manpower provides such dosing method
Source, production cost is improved, and the volume of direct measurement wellbore effusion has a larger error, the internal structure of the natural gas well,
The rate of change of shape and wellbore effusion can all cause measurement error.
Control unit of the present invention specifically refers to a kind of industrial computer or PLC, is arranged on the control at natural gas well scene
Unit, the measuring pump is used to control chemical feeding quantity and dosing speed, when the oil pressure and casing pressure that control unit arrives according to online acquisition,
Pressure difference is calculated, the standard pressure difference set in pressure difference and control unit forms pressure difference variable quantity, further according to pressure difference variable quantity with adding
Corresponding relation between dose calculates chemical feeding quantity corresponding to the pressure difference, and the signal of chemical feeding quantity is passed into measuring pump and electromagnetism
Valve, magnetic valve, measuring pump are opened, and measuring pump provides chemical feeding quantity and dosing speed according to the signal received；The K values are one
Changing value, the corresponding pressure difference variable quantity of a K value.
Applicant is known by a large amount of field tests：The wellbore effusion of the natural gas well and the pressure difference presence pair of oil pressure, casing pressure
It should be related to (wellbore effusion is more, and pressure difference is bigger), the yield of natural gas is relevant with the wellbore effusion in the natural gas well, wellbore effusion
More, the aerogenesis speed of the natural gas well declines, and then causes the yield of natural gas to decline, the yield setting lower limit of natural gas
Value, the lower limit have corresponded to an aerogenesis speed, and aerogenesis speed is monitored on-line by flowmeter, when aerogenesis speed is less than standard speed
When spending, mean that wellbore effusion excessively needs dosing to be handled, each natural gas well is given according to the actual conditions of the natural gas well
A pressure difference standard value is set, when pressure difference is higher than pressure difference standard value, gives natural gas well dosing (concentration made up a prescription every time is consistent),
Specific chemical feeding quantity is calculated by the corresponding relation between pressure difference variable quantity of the present invention and chemical feeding quantity.Due to oil pressure, casing pressure
Measurement can realize online data acquisition by pressure sensor, and the collection of the data is not only simple easy, and the number of collection
According to timely and stably, the wellbore effusion of the natural gas well can be reflected in real time, and then by establishing between pressure variable quantity and chemical feeding quantity
Corresponding relation come calculate chemical feeding quantity compare the direct measurement natural gas well wellbore effusion more accurate and effective.
The present invention measures oil by gathering oil pressure, casing pressure in natural gas well site setup pressure sensor, by control unit
Pressure difference between pressure and casing pressure, from new collection oil pressure, casing pressure after dosing, calculate pressure difference, repeated measurement pressure difference change two and dosing
Amount, finally draws the corresponding relation between chemical feeding quantity and pressure difference variable quantity, corresponding relation is stored in into control unit, and controlling
Setting pressure difference standard value in unit, gathers oil pressure, casing pressure by pressure sensor in the course of the work, and oil is measured by control unit
Pressure difference between pressure and casing pressure, pressure difference variable quantity is calculated by pressure difference and pressure difference standard value, then become by chemical feeding quantity and pressure difference
Corresponding relation between change amount calculates chemical feeding quantity, and chemical feeding quantity signal is transmitted a measuring pump, controlled by measuring pump by control unit
Chemical feeding quantity and dosing speed, realize intelligent dosing.
The present invention calculates pressure difference, further according to pressure difference standard value meter by online acquisition oil pressure and casing pressure in control unit
Pressure difference variable quantity is calculated, the corresponding relation established between pressure difference variable quantity and chemical feeding quantity, because the collection of oil pressure and casing pressure is real-time
And it is accurate, compared to direct measurement wellbore effusion, the stability and accuracy of data acquisition are improved, and then improve chemical feeding quantity
Accuracy.
Further, control unit is by the pressure difference between the oil pressure calculated and casing pressure, pressure difference variable quantity and corresponding
Chemical feeding quantity is shown on LED display, and LED display is arranged on oil wells in field, and LED display communicates to connect with control unit.
So that the workmen at scene observes the condition of production of the natural gas well in real time.
Further, control unit also communication link is connected to warning device, and the warning device is arranged on oil wells in field.
The warning device concretely can be a kind of buzzer, when control unit analyzes pressure signal exception,
Warning device is issued instructions to, with the workmen at warning scene.
Natural gas well intelligent dosing system, including control system and loading system,
The control system includes：
Signal gathering unit, the signal gathering unit are used for oil pressure, the casing pressure for gathering gas well；
Control unit, described control unit are used for the signal of reception signal collecting unit collection, are made according to the signal of reception
Go out analysis to judge and control the open and close of magnetic valve and delivery pump；
Remote operation unit, the remote operation unit communicate to connect with control unit；
The loading system includes fluid reservoir, and fluid reservoir is connected with N number of pressure pan by pipeline, and N is more than or equal to 1, high pressure
The port of export of tank is connected with gas well oil jacket annular space, and the port of export of pressure pan sets the magnetic valve with control unit communication connection, storage
Flow container delivers medication into pressure pan by delivery pump.
The remote operation unit specifically refers to remote monitoring room, and the gathered data of the different natural gas wells is in control unit
Analysis judgement is carried out, the signal received and analysis result are passed to remote operation unit by each control unit, by long-range
Operating unit is collected, and realization monitors each natural gas well, and the Macro or mass analysis of data in real time.
Each natural gas well is provided with a control unit and signal gathering unit, and signal gathering unit is believed including oil pressure
Number, casing pressure signal, signal passes to remote operation unit by each control unit.
N number of pressure pan of the present invention is arranged in parallel, and loading system of the present invention uses pipeline connecting mode, real
Show the function that a fluid reservoir conveys medicament to multiple pressure pans, while medicament added into the natural gas well using pressure pan,
The problem of installation caused by chemicals dosing plant is with dismounting trouble when avoiding existing installation.
Further, the outlet of pressure pan is provided with measuring pump, and measuring pump communicates to connect with control unit.
The measuring pump, which can be realized, is precisely controlled chemical feeding quantity and dosing speed, and control unit passes the signal of chemical feeding quantity
Measuring pump is passed, measuring pump controls chemical feeding quantity and dosing speed after receiving signal.
Further, signal gathering unit is the pressure sensor for gathering the oil pressure of the natural gas well, casing pressure.
Pressure sensor is prior art.
Further, in addition to batteries, batteries are connected with solar panels.
Solar panels absorption sunshine converts light energy into power storage and medicine system is powered in batteries,
And then the system need not put into electric power facility, it is only necessary to which low power solar cell for supplying power can meet the control to equipment
And work.
Further, fluid reservoir, be provided with agitating device in pressure pan.
The setting of agitating device can improve the uniformity of medicament.
Further, loading system also includes skid base, and pressure pan and live cooperating equipment are arranged on skid bottom
On seat.
The skid base specifically refers to a kind of movable base, and tank and the cooperating equipment at scene will be pressed to be arranged on sled
It is easy to remove on dress base, improve the convenience of operation.
Further, fluid reservoir, be provided with liquid level sensor in pressure pan；Liquid level sensor and control in pressure pan
Unit communication connects, and the liquid level sensor in fluid reservoir communicates to connect with remote operation unit.
Liquid level sensor is prior art.
Liquid level sensor in pressure pan is the liquid level for sensing pressure pan in real time, and the liquid level signal transmission that will be collected
Control unit, analysis is made by control unit and judges whether to open delivery pump；Liquid level sensor in fluid reservoir collects in real time
Liquid level signal in fluid reservoir, and signal is passed into remote operation unit, judged whether from remote operation unit analysis to storage
The medicament prepared is added in flow container.
The operation principle of the present invention：Control unit presses the liquid level signal of tank according to the letter received, and analysis judges, works as control
When unit sends unlatching delivery pump instruction, power section relay adhesive, motor driving conveying pump work, it will match somebody with somebody in storage tank
Than in good medicament injection high pressure storage tank, when being filled into setting liquid level, delivery pump is stopped, and measuring pump adds according to what is received
Dose signal injects medicament in gas well oil jacket annular space, so as to realize the purpose of well head intellectuality medicament filling.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is measured by gathering oil pressure, casing pressure in natural gas well site setup pressure sensor by control unit
Pressure difference between oil pressure and casing pressure, from newly collection oil pressure, casing pressure after dosing, pressure difference is calculated, repeated measurement pressure difference change two is with adding
Dose, the corresponding relation between chemical feeding quantity and pressure difference variable quantity is finally drawn, corresponding relation is stored in control unit, and controlling
Setting pressure difference standard value in unit processed, gathers oil pressure, casing pressure by pressure sensor in the course of the work, is measured by control unit
Pressure difference between oil pressure and casing pressure, pressure difference variable quantity is calculated by pressure difference and pressure difference standard value, then pass through chemical feeding quantity and pressure difference
Corresponding relation between variable quantity calculates chemical feeding quantity, and chemical feeding quantity signal is transmitted a measuring pump by control unit, by measuring pump control
Chemical feeding quantity processed and dosing speed, realize intelligent dosing.
2nd, the present invention calculates pressure difference, further according to pressure difference standard value by online acquisition oil pressure and casing pressure in control unit
Pressure difference variable quantity is calculated, the corresponding relation established between pressure difference variable quantity and chemical feeding quantity, because the collection of oil pressure and casing pressure is real
When and it is accurate, compared to direct measurement wellbore effusion, improve the stability and accuracy of data acquisition, and then improve chemical feeding quantity
Accuracy.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of intelligent dosing system.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
As shown in figure 1, a kind of natural gas well intelligent dosing method, comprises the following steps：
1), the foundation of corresponding relation：
A, oil pressure and casing pressure are gathered by the pressure sensor of oil wells in field, calculates the pressure difference of oil pressure and casing pressure, one
The amount of a wellbore effusion corresponding to pressure difference；
B, K part medicaments are added, K parts are the volume of dosing；
C, oil pressure and casing pressure are resurveyed after dosing, calculates the pressure difference of oil pressure and casing pressure, so draws chemical feeding quantity K values pair
Pressure difference variable quantity before and after the dosing answered；
D, circulating repetition a, b, step c, change K values, obtain some groups of pressure difference variable quantities and corresponding medicament chemical feeding quantity
Data, the corresponding relation established by above-mentioned some groups of data between pressure difference variable quantity and corresponding chemical feeding quantity, by corresponding relation
Input control unit memory storage；
2), the pressure sensor of oil wells in field gathers oil pressure and casing pressure in real time, and the signal of collection is passed into control unit,
Pressure difference is calculated in control unit, control unit calculates pressure difference variable quantity according to the pressure difference standard value of setting, further according to depositing
The corresponding relation of storage calculates chemical feeding quantity corresponding to current differential pressure；
3), control unit calculates and signal is passed into measuring pump after chemical feeding quantity, and send instruction open measuring pump and
Magnetic valve, chemical feeding quantity is controlled by measuring pump, realize intelligence filling.
Embodiment 2：
The present embodiment is based on embodiment 1, and control unit is by the pressure difference between the oil pressure calculated and casing pressure, and pressure difference pair
The chemical feeding quantity answered is shown on LED display, and LED display is arranged on oil wells in field, LED display and control unit communication link
Connect；Described control unit also communication link is connected to warning device, and the warning device is arranged on oil wells in field.
Embodiment 3：
Natural gas well intelligent dosing system, including control system and loading system,
The control system includes：
Signal gathering unit, the signal gathering unit are used for oil pressure, the casing pressure for gathering gas well；
The signal gathering unit is the pressure sensor for gathering natural gas well oil pressure, casing pressure；
Control unit, described control unit are used for the signal of reception signal collecting unit collection, are made according to the signal of reception
Go out analysis to judge and control the open and close of magnetic valve and delivery pump；
Remote operation unit, the remote operation unit communicate to connect with control unit；
The loading system includes fluid reservoir, and fluid reservoir is connected with N number of pressure pan by pipeline, N be equal to 2 or
3rd, 4 or 5, the port of export of pressure pan is connected with gas well oil jacket annular space, and the port of export of pressure pan is set to be communicated to connect with control unit
Magnetic valve, fluid reservoir delivers medication into pressure pan by delivery pump.
Embodiment 4：
The present embodiment is based on embodiment 3, and the outlet of the pressure pan is provided with measuring pump, and measuring pump communicates with control unit
Connection；Also include batteries, batteries are connected with solar panels；Stirring dress is provided with the fluid reservoir, pressure pan
Put；The loading system also includes skid base, and pressure pan and live cooperating equipment are arranged on skid base；The storage
Liquid level sensor is provided with flow container, pressure pan；Liquid level sensor in pressure pan communicates to connect with control unit, fluid reservoir
Interior liquid level sensor communicates to connect with remote operation unit.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (10)
- A kind of 1. natural gas well intelligent dosing method, it is characterised in that comprise the following steps：1), the foundation of corresponding relation：A, oil pressure and casing pressure are gathered by the pressure sensor of oil wells in field, calculates the pressure difference of oil pressure and casing pressure, a pressure difference The amount of a corresponding wellbore effusion；B, K part medicaments are added, K parts are the volume of dosing；C, oil pressure and casing pressure are resurveyed after dosing, calculates the pressure difference of oil pressure and casing pressure, is so drawn corresponding to chemical feeding quantity K values Pressure difference variable quantity before and after dosing；D, circulating repetition a, b, step c, change K values, obtain data of some groups of pressure difference variable quantities with corresponding medicament chemical feeding quantity, The corresponding relation established by above-mentioned some groups of data between pressure difference variable quantity and corresponding chemical feeding quantity, corresponding relation is inputted and controlled Element memory storage processed；2), the pressure sensor of oil wells in field gathers oil pressure and casing pressure in real time, and the signal of collection is passed into control unit, controlled Pressure difference is calculated in unit processed, control unit calculates pressure difference variable quantity according to the pressure difference standard value of setting, further according to storage Corresponding relation calculates chemical feeding quantity corresponding to current differential pressure；3), control unit calculates and signal is passed into measuring pump after chemical feeding quantity, and sends instruction and open measuring pump and electromagnetism Valve, chemical feeding quantity is controlled by measuring pump, realize intelligence filling.
- 2. a kind of natural gas well intelligent dosing method according to claim 1, it is characterised in that control unit will calculate Oil pressure and casing pressure between pressure difference, pressure difference variable quantity and corresponding chemical feeding quantity be shown on LED display, LED display Oil wells in field is arranged on, LED display communicates to connect with control unit.
- 3. a kind of natural gas well intelligent dosing method according to claim 1, it is characterised in that described control unit is also logical Letter is connected with warning device, and the warning device is arranged on oil wells in field.
- 4. realize the natural gas well intelligent dosing system of any one of claim 1-3 methods described, it is characterised in that including control System and loading system,The control system includes：Signal gathering unit, the signal gathering unit are used for oil pressure, the casing pressure for gathering gas well；Control unit, described control unit are used for the signal of reception signal collecting unit collection, are made point according to the signal of reception Analysis judges and controls the open and close of magnetic valve and delivery pump；Remote operation unit, the remote operation unit communicate to connect with control unit；The loading system includes fluid reservoir, and fluid reservoir is connected with N number of pressure pan by pipeline, and N is more than or equal to 1, pressure pan The port of export is connected with gas well oil jacket annular space, and the port of export of pressure pan sets the magnetic valve with control unit communication connection, fluid reservoir Pressure pan is delivered medication into by delivery pump.
- 5. natural gas well intelligent dosing system according to claim 4, it is characterised in that the outlet of the pressure pan is set There is measuring pump, measuring pump communicates to connect with control unit.
- 6. natural gas well intelligent dosing system according to claim 4, it is characterised in that the signal gathering unit is use In collection natural gas well oil pressure, the pressure sensor of casing pressure.
- 7. natural gas well intelligent dosing system according to claim 4, it is characterised in that also including batteries, electric power storage Pond group is connected with solar panels.
- 8. natural gas well intelligent dosing system according to claim 4, it is characterised in that in the fluid reservoir, pressure pan It is provided with agitating device.
- 9. natural gas well intelligent dosing system according to claim 4, it is characterised in that the loading system also includes sled Base is filled, pressure pan and live cooperating equipment are arranged on skid base.
- 10. natural gas well intelligent dosing system according to claim 4, it is characterised in that in the fluid reservoir, pressure pan It is provided with liquid level sensor；Liquid level sensor in pressure pan communicates to connect with control unit, the level sensing in fluid reservoir Device communicates to connect with remote operation unit.
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| CN107806334B (en) * | 2017-12-08 | 2023-06-20 | 中山乐满石油设备有限公司 | Full wireless integrated type electric antifreezing regulation stop composite valve interval intelligent gas production system |
| CN112127860B (en) * | 2019-06-25 | 2022-08-30 | 中国石油化工股份有限公司 | Novel play automatic joining of defoaming integration device |
| CN113323642B (en) * | 2020-02-28 | 2023-10-13 | 中国石油化工股份有限公司 | Gas well effusion on-line diagnosis and foam liquid discharge gas production intelligent injection method |
| CN112943170B (en) * | 2021-03-03 | 2022-08-09 | 盘锦华晨石油装备制造有限公司 | Pressurization and yield increase associated circulating gas lift system for low-pressure gas well |
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| CN103670352B (en) * | 2012-09-18 | 2016-06-08 | 中国石油天然气股份有限公司 | The autocontrol method of long-pending liquid got rid of by a kind of gas well |
| CN103291266B (en) * | 2013-05-27 | 2015-08-12 | 西南石油大学 | A kind of method of foam drainage gas recovery down-hole Automatic Dosing |
| CN104632156B (en) * | 2013-11-08 | 2019-02-15 | 中国石油天然气股份有限公司 | A kind of clump of formula gas well adds agent device and intelligent diagnostics hydrops to calculate hydrops amount method |
| CA2936096A1 (en) * | 2014-03-05 | 2015-09-11 | Halliburton Energy Services, Inc. | Degradable reticulated foam particulates for use in forming highly conductive proppant packs |
| CN204672180U (en) * | 2015-04-22 | 2015-09-30 | 中科华辰实业有限公司 | A kind of Full-automatic agent-feeding device |
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Effective date of registration: 20191009 Address after: 1-1707, floor 14, building 8, yard 87, Jiancai West Road, Huilongguan town, Changping District, Beijing 102200 Patentee after: Beijing Voight putt Environmental Technology Co., Ltd. Address before: 610000 Sichuan city of Chengdu province high tech Zone 169 days long Nan Xiang Building No. 3 No. 503 Patentee before: Liu Shang Jun |
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