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1、AbstractSuckerrodoilpumpingisthemainmethodofcrudeoilproductionintheworld.Theequipmentsofsuckerrodoilpumpingsystemarevitallyimportantinthewholeproductionofcrudeoil.Andtheloss,causedbythefaultofsuckerrodoilpumpequipment,especiallythoseequipmentsinthedeepwell,isextremelyhuge.Soresearchofm
2、onitoringandconditionsdiagnosissysteminpumpingwellisparticularlyimportantforoilfieldthatproducesafely,reduceaccidentandimproveeconomicefficiency.Thispaperresearchesmonitoringandconditionsdiagnosissystemofsuckerrodpumpingwellandthekeytechniquesofthesystem,whichincludestheremotemonitorin
3、ginpumpingwell,dataacquisition,dataprocessingandconditionsdiagnosisandsoon.Inaccordancewithdynamicalprincipleandconditioncharacteristicofsucker-rodpumpingsystemindirectionalwell,thecoupledvibrationsystemcomposedofthepumprod,pump,oiltubeandoilcolumnhavebeenresearched.Themathematicalmode
4、lofdownholepumpingconditionsdiagnosisindirectionalwellhasbeencreated,whichhasbeensolvedbythefinitedifferencemethod・Softwareoftheconditionsdiagnosisforsuckc-rodpumpingsystemindirectionalwellhasbeencompleted.Whichcanbeusedtoquantitativelyanalyseconditionsdiagnosisofsucker-rodpumpingsyste
5、m,andanalysestressofsucker-rodstring,thusthesituationsofdownholepumpingcanbefullygrasped,theproblemscanbediscoveredintimeandblindnessofremedialoperationcanbeavoided.ThispapercombinetheSQLdatabasewithsoftwareofmonitoringandconditionsdiagnosisforthepumpingwell,thewelFsdatacanbecollecteda
6、ndstoredthroughtheSQL.ThissystemcollectsdatafromtheoilwellbyRTU,andtransmitsthedatatocentralmonitoringstationbyGPRS.Thecentralmonitoringstationappliesthesoftwaretodiagnosethepumpconditionsandsetsupremoteaccessserver,authorizedusersareallowedtomonitorconditionsofpumpingwellinrealtimethr
7、oughVirtualPrivateNetwork.Filteringtechniqueisappliedforthefirsttimetomonitoringandconditionsdiagnosissystemofpumpingwell.Thediagnosistechnologycanfiltratedisplacementdata,thenoptimizethepolisheddynamometerdiagram,reduceerrors,computepumpdynamometerdiagramwithhighquality.Therebyitcan
