Hi-tech

Hi-tech TECHNOLOGYandEQUIPMENT Hi-—techResearchesSpeedupScientific andTechnologicalInnovationsofCN00C DongWeiliangandWangWeiyuan (ScienceandTechnologyDevelopmentDepartmentofChinaNationalOffshoreOilCorpora tion) ThescientificandtechnologicaldevelopmentofCNOOC LimitedenteredanewstageduringtheTenthFive-YearPlan pedod.High—techresearchesinmecompanyhavecatalyzed thetechnologicalinnovationoftheoffshorepetroleum industry.Byundertaking11keyprojectsconcerningkey technologiesforexplorationanddevelopmentofgiant BohaioilfieldunderChina'sNational863Program.24sub— DrojectsofCNOOC'sprojectsmatchingwithChina's National863Program.and10sub—projectsofNational KeyS&TSpecialProjectsthroughcooperationwith ChineseAcademyofSciences,thecompanydeveloped10 technologyserieswithintellectualpropertyrights. Evaluationofoffshorerecoverablepetroleum resourcesandexplorationlargets Afterthethirdroundofpetroleumresourceevaluation inChineseseawatersandthenewroundofpetroleum evaluationwithinthecountry,researchersestablished aframeworkofpetro1eamresources, providingfortheveryfirsttimeastructure ofrecoverablepetroleumresourcesinbasins toguidemarinefaciesexplorationand researchinChina.Basedonbasicdataand internationallvadoptedsimulationmeans. researchersintegratedgeologicalconceptsand statisticsconceptsandemployedinnovative play—trapevaluationmethodtoimprovethe science,system,andpracticabilityofoffshore recoverablepetroleumresourcesevaluation. Withexplorationgoingdeeper,the offshorepetroleumindustryhastodealwith moreandmorecomplicatedexploration targets.Byapproachingtheexplorationof complexreservoirsfromacombinedangle ofpetroleumgeology,geophysics,wellsiteoperation, andreservoirengineering,thecompanydevelopedsix setsoftechnologiesconcerningseismicdataprocessing f0rcomplexstructurebelts.fineinterpretationoffaulted zones,predictionofreservoirswithpoorformation communication,forecastofanisotropymigmatiticgranite reservoirs,quantificationofproducedfluidprofileinbare holesofburiedmountains.andsandcontroltechniquesat zerodifferentialpressurewithvisbreaking.Thecompany alsorevivedheavyoiIfieldclusterofLvda27—2and32—2 andmadethediscoveryofLvda10—1.5-2and4—2oil fields.AndthediscoveryandevaluationofJinzhou25一1. China'sbiggestcomplexreservoirofmigmatiticgranite intheArchean.marksthenewachievementmadeinthe explorationofBohai.Rollingexplorationandevaluation wascompletedinmid—depthandshallowreservoirsin depressionofcentralandsouthernBohai.Theabove— mentionedachievementsaresuretobethereason 28CHINAOIL&GAS/No.12007 卜 behindtheobtainment of520millioncbmsof petroleum-in-place. Time-lapseseismic reservolrmonltorina andaasreServoirs seismicexploration inoffshore ThestudvofTime. 1apseSeismicOffsbore ReservoirMonitoring. aProiectofChina's National863Program. consistsofthe deve1oPmentofu1tra performanceseismic recordingsystemand piezoelectricceramicscableforseismicdataacquisition, researchofapplicationofopticalfibergeophonein offshorecabledraggingandthree-componentvertical seismicprofiling(VSP),developmentofsubtlematching processingresearch,establishmentofintegratedmulti- levelinterpretationsystemfortime-lapseseismicdata, anddevelopmentof10setsofexpandableandpractical monitoringprogramsfortime-lapseseismicreservoir monitoring.Theachievementshavefilleduptheblankin China'soffshoretime-lapseseismictechnology,promoted thematchingprocessingofseismicdataincomplicated geologicalconditionsanddiffrentialandresitricted quantitativeinterpretationoftime-lapseseismicdatatoan internationallyadvancedlevel,andrealizeddynamictime- lapseseismicmonitoringofwaterfloodinginheavyoil fieldsandthepreliminaryapplicationofseveralrelevant achievementsinSuizhong36-1oilfield. HeavyoildevelopmentandEORtechnologies inBohai Atiertwoyearsofhardwork,theEORprojectteam ofBohaiheavycrudemadesignificantbreakthroughin tacklingtheissueofheavycrudeoilfieldstimulationby utilizingdrillingandfracturingtechniquesandmoderate sandcontro1.Byapplyingtheresearchresult,anaverage increaseofproductionrateby2to6timeswasachieved inSZ36.1and0HD32.6oilfieldsinBohai.After gainingdistinguisheconomicbenefit,thetechnology wasalsoemployedinNanbao35-2oilfield—themost challengingheavycrudefieldinpetroleumdevelopment historyofCNOOCLimited.Thecombinationofdrilling andfracturing,moderatesandcontrolwithsimple completion,submersibleelectricscrewpumpproduction system,andperforationwithlargediameter,high-density, anddeeppenetration,andbackflushperforationcleanup withbigdifferentialpressureinNanbaooilfield,enlarged theexposureareaofoilformations.strengthenedcrude fluidity,andgainedaproductioncapacitypredictedin post-drillinganalysis.Thetechnologyserieswonthe SpecialScientificandTechnologicAwardbyPresidentof ChinaNationalOffshoreOilCorporation. 3-Dtrajectorycontrolleddrillingtechnology andhightemperatureandhighpressure cementingtechnology Theresearchoffclosedloop13.Dtrajectorycontrolled drillingtechnology,whichisalsoaprojectunder China'snational863program.hadbeenpivotedon thedevelopmentoftoolsforrotarynavigationdrilling, MWDresistivityloggingandgammaraylogging,drilling fluidpulsetransmission,MWDdownholeengineering parametermeasurement,anddrillingandcompletionof bulged.tube.positionedbranchedwells.Therearefive innovationsconcerningdown.holeflankdisplacement controlequipmentandmethodaboutthetechnology with5UtilityModelPatentsand1InventionPatent.The CHINAOIL&GAS/No.1200729 TEcHNO【DGYandEQUIPMENT fieldtestingofpositivepulsegeneratorfordrillingmud hadbeencarriedoutin4onshorewellsandnewtypeof bulgedtubepositioningtechnologyforbranchedwells anddown.holetoolshadbeenusedinA22andA10well ofPlatformAinChengbeioilfield.Therotarynavigation drillingtoolsanddrillingandcompletiontoolsfor MultilateralWellswithbulgedtubepositioningkeepup withtheinternationallyadvancedleveloflate1990s. Offshoreimaginglogginganddrillstemtest lechnologies OffshorepetroleumlogginginChinausedtorely heavilyonimportedapparatusandequipments,resulting inhighoperationcostandlowcompetitivenessinthe internationalmarket.Tochangethesituation,Chinahas begundevelopingitsownimagingloggingtechnology since1995.WithaclosecooperationamongTsinghua University,ChineseAcademyofSciences,andother institutesontheresearchofNational863Programduring the9thFive.YearPlanperiod.fiveadvanceddownhole apparatusandequipments,includingOctagonalDiplog Tool(OCTDIP)andmultiply—ordersubarraySonic LoggingTool,hadbeensuccessfullydeveloped.Inorder tosupporttheloggingoperation,studiesalsocarriedout onthedevelopmentofgroundsystemforimaginglogging andtheprototypewasdesignedandmanufactured. Meanwhile,acompletesetofEnhancedLoggingImaging System(ELLS)suitableforpetroleumexplorationin marineenvironmentwasdevelopedwithindependent intellectualpropertyrights.Comparedwithprevious 30CHINAOIL&GAS/No.12007 Singleandindependentlogging tools,thenewsystemiscapableof accomplishingonitsownthemajority ofloggingservicescurrentlyrequired inthedevelopmentofoffshoreoil fields. TheresearchofDrillStemTest technology,alsoaprojectofthe National863Program,presenteda FormationComprehensiveTestSet (FCT)withamatchingsystemfordata processingandinterpretationinBohai geologicalconditionsbasedonanalog physicalexperimentmodel,numerical ,. 'analogueoflimitedelements,design andmanufactureofmechanic hydraulicsystem,electroniccontrol anddataacquisition,andlogging systemdesignanddatainterpretation mode1. Theexperimentresultsrevealtheapparatus'fine performanceinpressuremeasurementsandsampling. DuringDecember10to12,2005,afieldexperimenthas beencarriedoutwiththeprototypeofthesetinJing9—22 ofNorthChinaOilFieldandinatestingwellofHuizhou oilfield.Fourinnovations,includinghigh—pressuremixed— fluidpump,hadbeenmadewith2InventionPatents and3UtilityModelPatents.Itissafetosaythatthe achievementsoftheprojecthaveanexcellentapplication prospects. Simplified modelfort marineplatformand"threeones" hedevelopmentofmarginalfields Theapplicationofsimplifiedmarineplatform madeleapingprogressinthedevelopmentofmarginal fields.Theanti.iceandshockattenuationdevice,an achievementoftheresearchonnew..typeanti.?iceplatform undertheNational863Program,weresuccessfully employedinplatformsofJinzhouNorth20-2fieldand theinstallationoftheNorthGaodianplatform,China's firstsimplifiedandlightest(weightsonly610tons) unmannedmarineplatformwithasinglepillarandthree supportinganchors,hadalsobeencompletedinthefield. ThesimplifiedunmannedplatforminEastGaodianof Oikou17.2fieldisthefirstgenuineunmannedplatform inBohaiarea.ProducersinWeizhou11-4Nfieldand6—1 fieldacceleratedthedevelopmentofitsmarginalfields byreducingthelegsoftheplatformsfrom4to2or1 withthreesupportinganchors.Basedonthesimplified platforms,theresearcherdesignedthethreeonesmodel (onesimplifiedplatformplusonesubmarinepipeline andonesubmarinecable)formarginalfielddevelopment andapplieditinWeizhoufield,SouthChinaSea.Asa result,themarginalfields,includingWeizhou111—1,6—1, and11—4N.hadbeenwelldevelopedwithhelpofthe newtechnologiesandalsobydependingonthehandling capacityofoldplatformsandexistingsubmarinecables. FPSOandsubseaproductiontechnologies Thefloatingproductionstorageandoffioading(FPSO) systemisalarge—scaleproductionsystemthatintegrated oilproduction,storage,andexporting,livingfacilitiesfor employees.anddrivingforcesinoffshoreoilindustry. InordertoeffectivelydevelopmentChina'soffshore petroleumandtacklethetechnologicaldifficultiesin thedevelopmentofoilandgasfieldswithproducing problems,CNOOCLimitedhasstartedthedevelopment ofFPSOsince1980sandputtheBohaiFriendshipFPSO intoproductionin1989.Afterl5yearsoftenaciOUS effortsandhardwork,thecompanydevelopedonits own8EPSOsandputthemintooperationin10fieldsin BohaiandSouthChinaSea.Currently,thetechnology hasalreadybecomeastrategictechnologvf0rthe developmentofChina'smarineoilandgasfields.In 2004,75%ofthecompany'sannualtotalproductioncan successdevelopmentofthetechnologyisaccomplished throughthejointeffortsofmanyinstitutes,universities, andmanufacturers,involvinghardworksmadebydozens ofassistantcompaniesandthousandsofemployees.As majortechnologicalequipment,theFPSOhasalready generatedgoodeconomicbenefitforthedevelopmentof China'seconomy. TheinnovationsinkeytechnologiesofFPSObv CNOOCLimitedandotherdomesticcompanieshave promotedtheoveralltechnologicallevelofFPSOtoan internationallyadvanced1eve1andformedmainstream technologieswithindependentintellectualproperty rightsforthedevelopmentofChinesemarinefields.The companyhasalreadysubmittedl2patentapplications, amongwhich3areInventionPatentsand3areUtility ModelPatents.TheachievementsoftheproJecthavebeen commercializedandimplementedintheproductionof marinefields.Withitsadvantagesovertheconventional half-landandhalf-offshoreproductionplatforms,FPSO hasbeensuccessfullyemployedinthedevelopmentof10 mid—andlarge—scaledoffshoreoilandgasfields(including Chaofeidiaooilandgasfield)withhard—to—getoilandgas, accumulativelyproducing730milliontonsofpetroleum reservesandincreasingoilandgasproductionby124 milliontons,andyieldingeconomicbenefitsofnearly 200billionRMBf0rChineseoffshoreoilindustry.Italso beattributedtotheapplicationofthetechnology.ThestrengthenedthecompetitivenessofChi neseindustry, CHINAOIL&GAS/No.1200731 TE甜删andEQUIPMENT suchasshipbuildingandmechanicalandelectricalsectors. facilitatesChinatoacountrywithstrongcapacityof manufacturingFPSOwithadvancedtechnologies. Offshorepetroleumproductiontechnologyisthekeyto aneconomicandhigh—efficientdevelopmentofmarginal anddeepseaoilandgasfields.Yearsofresearchhelps CNOOCLimitedtomasterthekeytechniquesofoffshore productionengineeringandtodesignindependentlymore thanlO0engineeringplansforover20offshoreoiland gasfieldsrangingfromshallowwatertodeepwater. Thecompanyalsousedforthefirsttimetheoffshore productionsysteminanoffshorecondensateoilfield. thephaseIIofChunxiaodevelopmentengineeringplan, andinLedong22一lgasfieldofshallowlayer.InPanyu gasfielddevelopment,thesystemwasagainemployed bytyingitbacktothegasfieldof35kilometersaway. Presently,thesystemhasbeenchoseninthedevelopment ofthephaseIIofChunxiaoinproject.Ledong22一lgas field,andPanyugasfield.Theresearchofthesystemhas savedenormousamountofmoneyforCNOOCLimited initsgasfielddevelopment.AndwithChina'soffshore petroleumexplorationgoingfurther,thesystemhasavery brilliantfutureforitsapplication. IntroductionandutilizationofLNGtechnologies TheseeminglyendlessbusinesschainforLiquified NaturalGas(LNG)includesgasproduction(from gasfields),pipelinetransportation(fromgasfieldto liquefactionfactoriesandthentoLNGshipsinoil— producingcountries),shipment(fromfactorytothe LNGterminalsofimportingcountries),andpipeline distributiontoendcustomers, includingpowerstationor otherenergyusers.Thechainis closelyconnectedandcannot workproperlywithevenone segmentmissing,thereforerisks areinevitable. TheintrOductiOnofLNG meansacomPrehensiVe introductionfromforeign countriesofresources, techno1ogY,theory,and managementwithChina— designedandconstructedLNG terminals.Thestoragetanks forLNGshallbeequipped withdeep—coolingfacilities.By combiningtheintroductionofforeignhi—techtechnologies withindependentresearchanddevelopment,China's coolingtechnologieshadbeengreatlyimproved.LNG transportationrelaysmainlyonshipping.Through introductionofforeignshipbuildinganddesignforLNG transportation.theEastShanghaiShipYardsuccessfully builtChina'sfirstLNGcarder.Gradually,thetechnology concerningLNGshipbuildingandoperationwillbe localizedandChina'sshippingtechnologywillbegreatly improvedtospurthedevelopmentofChineseshipbuilding industry. LNGprojectstriggeredtheconstructionofgaspipelines alongChina'scoastline.Withthepipelinesdistributed alongthenation'Scoasts,gassupplytocoastalcitieswill bewellsecured.LNGismainlyusedincombined—cycle powerplantstogenerateelectricity.Thegenerationof electricitywiththeideaofenvironmentalprotectionvalue andtheresearchofenergy—saving,sustainable,andhigh— efficientcombinedpowergenerationtechnologyhave successfullysettledtheissuesrelatingtopeak—shavingand emergencyresponses,expandedenergysupplyforpower industry,pushedforwardarapiddevelopmentofgiant 们晰e眦出啪删ce level,andshapedthegaspowergenerationtoanother pillarpowersourceinChina Heavyoilutilization-highgraderoadasphalt productionfromZhonghai36—1crude AnalysisandtestingofSZ36—1crudefromBohai revealthatasphaltproductspreparedundercutpoints between490-500.Cduringthestraight—runcanyield productswithlndexesthatmeetalltherequirementsof highwayconstruction.Basedonexperimentalresults,a newasphaltproduct,ZhonghaiAH一50producedfrom the36—1crude,hadbeendevelopedaftertrialproduction. Theappraisementshowsthattheproducingprocedure fortheasphaltproductiswelldesignedandtheproducts isofstablequality,reachingtheinternationallyadvanced levelofthesimilarproducts,andmeetingtheGB/ T15180AH一50specificationandspecificationsmadeby Australia,Britain,Canada,andAmerica.Theexperiments andtrialpavingshowthatZhonghaiAH一15performswell inhightemperatureandstaysstableinwat?