CN103809528A - Natural gas producing well production and pressure automatically adjusting intelligent control system - Google Patents
Natural gas producing well production and pressure automatically adjusting intelligent control system Download PDFInfo
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- CN103809528A CN103809528A CN201210441070.1A CN201210441070A CN103809528A CN 103809528 A CN103809528 A CN 103809528A CN 201210441070 A CN201210441070 A CN 201210441070A CN 103809528 A CN103809528 A CN 103809528A
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- 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]
Abstract
The invention provides a natural gas producing well production and pressure automatically adjusting intelligent control system, belonging to the field of natural gas development and production technology and automatic control technology. The system is an intelligent control system formed by a computer, a PLC, related process equipment and a measuring meter in the natural gas field development and production process. According to the system, through the method of the combination of the automation technology and the natural gas development and production technology, the intelligent control technology is applied in the production process of a natural gas well, the gas well production and wellhead pressure are automatically controlled, the natural gas production and wellhead pressure can be automatically adjusted and controlled according to a production need, and technical method and guarantee are provided for the optimization of the natural gas field development speed and the realization of a best working effect. The technology can be widely applied to the production control of different types of natural gas field producing wells at home and abroad, and the system has a targeted intelligent monitoring alarm function for a gas field production well containing high sulfate gas at the same time.
Description
One, technical field
Rock gas is produced automatic adjusting output pressure regulation intelligent control system and is belonged to construction of natural gas fields production technical field and technical field of industrial automatic control, is the system that automatic technology combines with weather Development and Production technology.
Two, background technology
Natural-gas field is produced gathering system and is comprised the major parts such as gas production, gas heating furnace, gas gathering and transportation, and the control of gas production output and wellhead pressure is that rock gas is produced the defeated core control section of collection.Domestic common employing manual operation control at present, remote handle control, single flow automatic control mode, i.e. artificial or semiautomatic control mode, gas discharge (gas well output) does not also reach and realizes the technical merit of effectively automatically controlling simultaneously with pressure.Gas production automatic adjusting output voltage control system has been broken through traditional manual operation control and traditional single argument PID limitation of control automatically, adopt advanced intelligent control technology, realized automatic fixed output quota voltage stabilizing and automatic adjusting output Regulation Control function to gas production, to rock gas produce, gas heating furnace operation, rock gas stable set are defeated etc., and aspect all has vital role.This system is to utilize computing machine in gas exploitation production run, PLC, the intelligent control system that related process equipment and measurement instrument etc. form, the method that this system combines with construction of natural gas fields production technology by automatic technology, intelligent control technology is applied in the production technology of gasser, gas well output gas discharge and wellhead pressure are controlled automatically, can automatically adjust at any time production control well gas production and wellhead pressure according to need of production, also can be and improve the automatization level that gas exploitation is produced, optimize better gas exploitation speed, realize best exploitation effect technical method and guarantee are provided.This technology can be widely used in the production control of dissimilar natural-gas field producing well both at home and abroad, simultaneously to pointed ground of producing well, high sulphur-containing gas gas field intelligent monitoring and alarming function.
Three, summary of the invention
1, intelligent control system technological process
Rock gas from producing well by technological process through one-level, secondary, three grades of throttling valve and heating furnace one-level, secondary heating coil, orifice flowmeter downstream transport.Gas pressure is roughly from P
0, P
1, P
2, P
3decline step by step, reach the outer defeated pressure P needing
3.Because gas pressure reduces, volumetric expansion, thermodynamic temperature is from T
0, T
1, T
2, T
3reduce step by step, need to heat it with heating furnace, to meet the defeated requirement of collection.As shown in Figure 1, controlling in technological process adopts flow, pressure tandem to regulate nesting type structure, the control of first key parameter flow Q forms close loop control circuit by orifice flowmeter FIT and two-step throttle valve (flow control valve) and completes, second key parameter P
2control by pressure unit PIT-P
2close loop control circuit completes with three grades of throttling valve (pressure-regulating valve) composition.Other parameter T
0, T
1, T
2, T
3, P
0, P
1, P
3with flow Q and pressure P
2change and change, only take detection, scope control and overload alarm mode.
2, intelligent control system main hardware forms
Different gasser adopt and all can adopt above-mentioned same technological process, but process equipment instrument materials and specification type selecting should be with the corresponding adjustment of rock gas impurity composition, gas well deliverability and reservoir pressure.System hardware is pressed several parts such as function allocation skill part, instrument part, host machine part, operation circuit.Process portion is made up of related process pipeline, gas heating furnace, technique valve etc.; Instrument part is overlapped flowmeter, two-stage electric control valve, is formed by 4 cover pressure units, 4 sleeving temperature transmitters, 1; Host machine part is by PLC controller, computing machine, rack and main frame slave part.Operation circuit comprises measuring circuit, operation circuit, communication line etc.
3, intelligent control system software programming
Software is divided into data acquisition module, data processing module, data storing queries module, flow pressure intelligent control module, gas heating furnace temperature control modules, Intelligent Recognition diagnosis and emergency processing alarm module, the emergent closing well module of ESD, communication module, human-machine operation session module etc. by functional structure.The intelligent control method of software section application of advanced is programmed, and makes system have function and the intelligent feature of multiple brilliance, is the gordian technique of system.
Four, accompanying drawing explanation
Fig. 1 process chart
Fig. 2 intelligent control system control principle block diagram
Fig. 3 software function structural drawing
Five, embodiment
1, process portion requires to carry out science and the applicability of research and design, the on-the-spot installation of process and its technical scheme of verification experimental verification according to construction of natural gas fields production Technology.Rock gas from producing well by technological process through one-level, secondary, three grades of throttling valve and heating furnace one-level, secondary heating coil, orifice flowmeter downstream transport.Gas pressure is roughly from P
0, P
1, P
2, P
3reduce step by step, reach the outer defeated pressure P needing
3.Because gas pressure reduces, volumetric expansion, thermodynamic temperature is from T
0, T
1, T
2, T
3reduce step by step, need to heat it with heating furnace, to meet the defeated requirement of collection.
2, process pipeline equipment, instrument and main frame, circuit etc. are chosen in the concrete technical parameter requirement of hardware components combined process and the design of production scene actual conditions.Process equipment instrument materials and specification type selecting and rock gas impurity composition, gas well deliverability and wellhead pressure adapt.Through science and the applicability of on-the-spot installation and verification experimental verification scheme.
3, software programming is for the feature of detected parameters, control object and the well-designed exploitation of needs of practical operation control, and performance PLC, computer software programming technical advantage are developed multiple functional modules: data acquisition module, data processing module, data storing queries module, flow pressure intelligent control module, gas heating furnace temperature control modules, Intelligent Recognition diagnosis and emergency processing alarm module, the emergent closing well module of ESD, communication module, human-machine operation session module etc.The multinomial advanced technologies such as software application digital filtering, software linearization, Based Intelligent Control, Intelligent Recognition, make system have very high accuracy, stability, security.Advance and the applicability of the on-the-spot installation of process and this software of verification experimental verification.
Claims (5)
1. control system title and functional description: gas production automatic adjusting output pressure regulation intelligent control system, synonym title has: gas production automatic adjusting output pressure regulation intelligent control technology, gas production intelligent control system, gasser robot control system, intelligent day gas gathering station heated by natural gas furnace control system, two or three grades of throttling valve intelligent control systems of gas gathering station gas heating furnace.In title description, " rock gas " comprises " sour natural gas (abbreviation acid gas) ", and " control system ", with claiming " supervisory system ", " Based Intelligent Control " comprises " automatically controlling ".
2. the entirety of the control system software and hardware structure content that forms a complete set of, containing overall material object and function.
3. the supporting and array mode of control system hardware, comprises technique instrument flow content, host computer system.
4. Control System Software and function thereof.
5. the concrete intelligence control technology scheme and the method that adopted.Comprise two-step throttle valve opening discharge relation linear optimization scheme, deviation e (t)-controlled quentity controlled variable u (t) optimized relation scheme, deviation integration i (t)-controlled quentity controlled variable u (t) prioritization scheme, flow pressure time delay control prioritization scheme, dependent failure Intelligent Recognition alarm technique method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441070.1A CN103809528A (en) | 2012-11-08 | 2012-11-08 | Natural gas producing well production and pressure automatically adjusting intelligent control system |
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|---|---|---|---|
| CN201210441070.1A CN103809528A (en) | 2012-11-08 | 2012-11-08 | Natural gas producing well production and pressure automatically adjusting intelligent control system |
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|---|---|
| CN103809528A true CN103809528A (en) | 2014-05-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595720A (en) * | 2015-01-20 | 2015-05-06 | 中国石油天然气股份有限公司 | Freezing blockage preventing device |
| CN104807186A (en) * | 2015-02-03 | 2015-07-29 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering wellhead heating furnace system |
| CN104913198A (en) * | 2015-04-14 | 2015-09-16 | 河南宏天实业有限公司 | Automatic yield and pressure adjusting device for natural gas producing well and control method |
| CN110159922A (en) * | 2019-05-13 | 2019-08-23 | 安瑞科(蚌埠)压缩机有限公司 | Well head gas recovery system |
| CN111963116A (en) * | 2020-08-14 | 2020-11-20 | 中国石油大学(北京) | Intelligent gas field system and method for self-adaption and intelligent analysis decision |
-
2012
- 2012-11-08 CN CN201210441070.1A patent/CN103809528A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595720A (en) * | 2015-01-20 | 2015-05-06 | 中国石油天然气股份有限公司 | Freezing blockage preventing device |
| CN104807186A (en) * | 2015-02-03 | 2015-07-29 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering wellhead heating furnace system |
| CN104807186B (en) * | 2015-02-03 | 2017-11-28 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering hole top heating furnace system and autocontrol method |
| CN104913198A (en) * | 2015-04-14 | 2015-09-16 | 河南宏天实业有限公司 | Automatic yield and pressure adjusting device for natural gas producing well and control method |
| CN110159922A (en) * | 2019-05-13 | 2019-08-23 | 安瑞科(蚌埠)压缩机有限公司 | Well head gas recovery system |
| CN111963116A (en) * | 2020-08-14 | 2020-11-20 | 中国石油大学(北京) | Intelligent gas field system and method for self-adaption and intelligent analysis decision |
| CN111963116B (en) * | 2020-08-14 | 2022-04-12 | 中国石油大学(北京) | Intelligent gas field system and method for self-adaption and intelligent analysis decision |
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Application publication date: 20140521 |