游梁式抽油机自动控制技术研究(冲次自动控制)

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1、英文摘要Subject：TechnicalResearchOfAutomationOnBeamPumpingUnit(StrokeFrequencyContr01)Speciality：MechanicalandElectronicEngineeringName：Linxin(signaturc)LI‘队"¨Instructor：PengYo昭(signature)渤q■、J√ABSTRACTThedevelopmentofoilextractionistakenmorefocusbytechnicists．Thepastwaystooilextraction

2、arerough,withthesituationoflowpermeableisseriousintheseyears，SOthepastwayscannolongerfittherequirementoftoday．Thisarticlebeginstostudysomehiglleffectivemethodsforthelowpermeableoilwell，andseekssomecopingmethods．Afteranalysis，strokefrequencyisfirstdeterminedasthebestparametertorealiz

3、etheautomationofbeampumpingunit,thenvariablefrequencyspeedcontrolisusedasthebeatwaytorealizestrokefrequencycontrolstepless．Thebasicofvariablefrequencyspeedcontrolliesontheadjustmentofinnerfrequencyofmotor,itownstheadvantagestorealizemotorworkingstepless，lowerthelaborcastsandenhancec

4、ontrollabilityofstrokefrequency．Afteradoptingvariablefrequencyspeedcontrolasthewaytorealizestrokefrequencycontrol，itisfurhertalkingaboutallthepresentmodelsofvariablefrequencyspeedcontrolandmakingsimulationsofallthemodelsbyMatlab／Simulink．Finallywimcomparisononemodelofallisadoptedfor

5、theoilextraction．Withthefoundationofsteplessstrokefrequencyandsomerelatedoilengineering，threestrokefrequencycontrolmodelsareestablishedandplayrolesasguidancestoadjustmentofstrokefrequency．Finallyonemodelofthethreeismostsuitableandadopted，theothertwomodelscouldbeadoptedaccordingtocon

6、creteconditions．Socombinedthesetwopartsofvariablefrequencyspeedcontrolandstrokefrequencycontrolmodelcouldaccomplishacompletecloud—loopcontrolofoilwell．Keywords：beampumpingunit,variablefrequencyspeedcontrol,ve，dtc，motorpower,indicatordiagram，producingfluidlevelThesis：FundamentStudyII

7、I目录目录第一章背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1数字化油田定义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1．1国内外发展现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．21．1．2国内与国外数字化油田建设的差距⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．21．1．3发展趋势⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。21．2有杆泵抽油系统故障诊断发展状况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．1示功图诊断方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．2．2

8、计算机诊断方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯