勘探项目管理在青海油田的实践效果

EXPLORATIONMANAGEMENT100101EXPLORATIONMANAGEMENT102103EXPLORATIONFORUM112CHINAPETROLEUMEXPLORATIONsiltstonereservoirandcalcareoussiltstonefeaturesinbright-yellow,brown-yellowstrip;andTheFMIimageoflimestoneandmarlitefeaturesinwhite,bright-yellowandwhiteblackinterbeddedstrips.OpenfractureandhighlyconductivefractureshowasdarksinusoidalcurveontheFMIimage,andhighresistivityfractureshowsasbright-yellowandwhitesinusoidalcurveontheFMIimage.Moredevelopedfractures,betterpermeabilityofreservoirhas.Thedissolutionfractureshowsaslocallyenlargingalongthefracture,dispersedstellarorbeadeddarkspotontheFMIimage.Keywords:FMIlogging;algalimestone;oilreservoir;reservoir;evaluation;QaidamBasinTechniquesofFormationProtectionandOptimal-fastDrillingofWellKun-2/TaoYongjin,YanJienian,YangGuohuiandBaoYonghai//PetroChinaQinghaiOilfieldCompany,DunhuangCity,GansuProvince736202Abstract:TechnicalcountermeasuresforwellKun-2aredrawnuptosolvethekeydifficultiesindeepexplorationwellinthenorthernmarginalzoneofQaidamBasin.Asuiteofoptimalandfastdrillingtechniquessuitabletothenorthernmarginalzoneofthebasinaredevelopedonthebasisoftheoptimizationofdrillingequipment,wellborestructure,drillingbitsandtoolsassembly,aswellasdrillingparametersandpropertiesofdrillingfluid,andtheresearchandapplicationofoil-gasreservoirprotectiontechniques.Asaresult,thecompletiondrillingdepthofwellKun-2reaches5,950meters.Asthewelldepthincreasesby888metersandthebig-sizedwellholegetslonger,thecyclesofdrillingandwellcompletionofwellKun-2arereducedby98.75daysand124.2daysrespectively,withthespeedofeachdrillingrigincreasingby317metersmonthlyandtheaveragedrillingrateincreasingby0.82mperhour.Anoptimalcompositeandtemporarilyblockedplanisestablishedtoprotecttheoil-gasreservoir.Byapplyingthisplan,anewkindofdrillingfluidismadeup,withitsrestorablepermeabilityreachingmorethan87.5percentandhavingbetterfluidityandlowerfiltrationloss,obviouslyimprovingmud-cakequalityandenhancingsidewallstability.Keywords:optimalandfastdrilling;drillingbit;wellborestructure;oil-gasreservoirprotection;wellKun-2;QaidamBasinSystematicTechniquesforLowPorosityandLowPermeabilityReservoirReconstructionandTheirApplicationinWesternQaidamBasin/ZhangQihan1,2,ZhangWenbin2andYangChunyan2//1ChinaUniversityofPetroleum(Beijing),Beijing,100022;2ResearchInstituteofOilDrilling&ProductionTechnology,PetroChinaQinghaiOilfieldCompany,DunhuangCity,GansuProvince,736202Abstract:ThereservoirinthewesternregionofQaidamBasininQinghaiProvinceisatypicalmarlstonereservoirwithlowporosityandlowpermeability,inwhichcarbonaterock,clasticrockandmudstoneaccountforthesameproportionrespectively.Itisdifficulttoimprovesuchakindofreservoirforitsdifferencefrompurecarbonaterockreservoirsandpuresandstonerockreservoirs.Byapplyingthetechniquesofgelacidfracturing,hydraulicsandandflowback,alkydacidizing,andoilbasefracturing,43timesoftechnicaltransformationhavebeencarriedoutinvariousexplorationwellsoftheregionincluding12timesofacidizing,20timesofacidfracturing,and11timesofsandfracturing.Thesuccessrateofacid-fracturingandacidizingoperationisfarhigherthanthatofsandfracturing,andthefieldoperationparameterandthedesigncoincidenceratearebothkeptatmorethan85percent.Theresultsshowthat80percentoftheexplorationwellsseeanincreasingfluidproductionbasedonthereservoirreconstruction,withtheaveragefluidflowbackratebeing65percent.Keywords:thewesternregionofQaidamBasin;explorationwell;multipleinjectionacid-fracturingtechniqueingelacid;hydraulicsandandflowbacktechnique;alkydacidizingtechniqueApplicationofSatelliteCommunicationSysteminExplorationInformationConstructioninQinghaiOilfield/SunZhaoping//DepartmentofExplorationProject,PetroChinaQinghaiOilfieldCompany,DunhuangCity,GansuProvince736202;HeZuofeng//InformationCenter,PetroChinaQinghaiOilfieldCompany,DunhuangCity,GansuProvince736202Abstract:ThedatatransmissionandproductionmanagementofexplorationandproductioninQinghaiOilfieldalwaysdependonmicrowavetransmitter-receiver,whichcannotmeetthedemandofrapidexploration,blockingthetransmissionandintercommunionofinformation.Inaddition,fieldoperationofoil-gasexplorationfeaturesinhighmobility,fixationcommunicationsystemisnotsetup,whichmakingproductionmanagementbenotintimeandlackveracity.ThroughthestarcommunicationnetworkofVSATKuwavebandwassetupandlinkedwithdistance-controlledtelephonenetworkatthebase,soastorealizethefreecommunicationbetweenproductionunitfieldandmanagementdepartmentatbase,atsametime,byusingtheinformationsystemofexplorationproduction,itisrealizedthatthespecificdataprocessingsuchaslogprofilealongwithdrillingwell,wellloggingcurves,playbackoflogseconddata,realtimedataofloginstrument,andoil-testingdata,geophysicaldataaswellaswebreleasingfunction,withthegeologicaldata,thedailyreportofdrillingwellandoil-testingreleasedonsitetogether,thedynamicinformationplatformofexplorationmanagementhasbeenestablished,whichprovidesleadersatvariouslevel,researchpersonnelandmanagerswithanintegrated,abundantdata,dynamicinformationplatformalongwithdrilling.Keywords:satellitecommunicationsystem;explorati