中国页岩气勘探开发(中石油内部资料.英文)

ProgressofExplorationandDevelopmentofShaleGasinChinaChinaNationalPetroleumCorporationSeptember.2010Inthelastyear,withtherapiddevelopmentofglobalgas,threestrikingcharactersemerged.Oneisthatwehaveallrecognized21stcenturyisacenturyofnaturalgas;andthesecondoneisthatalowcarboneconomyandenvironmentprotectionaresubjectsofworlddevelopment,andthelastoneisthatunconventionalgasisnotonlychanginginternationalenergylandscape,butalsobecomingthehotspotofglobal.Withrespecttoconventionalgas,shalegasisabsolutelyanewfield.WiththerapidexploitationofshalegasinUSA,theshalegasproductiongrowsfast,whichmadetheLNGprogram-aprogramplanedtobeimported—suspendedordelayed.Chinahasheavydemandfornaturalgas,however,thegaspriceofimportedfrommiddleAsiaandtheLNGprogramofsoutheastchinacoastalhillyregions,isestimatedtobehigherthan2yuan/m3.Relatively，Chinahasabundantshalegasresource,andthusacceleratingdevelopmentandutilizationofshalegashasimportantstrategicsignificancetopromotesustainablegrowthofChineseeconomyandrelieveshortageofpetroleumresource.PrefaceIShaleGasResourceandDistributionofChinaIIShaleGasProgressofCNPCIIIConclusionsandUnderstandingOutlineShalegasisaspecialkindofunconventionalnaturalgas.Shalegasdefinition:naturalgasoccurredinthemudstoneorshalewiththefeaturesofselfgenerationselfstorage,noair-waterinterface,formationandstorageforacontinuouslargearea,lowporosity,lowpermeabilityandthelike,itgenerallyhasnonaturalcapacityorlow-yieldingandneedslarge-scalewaterpowerfracturingandhorizontalwelltechnologyforeconomicexploitationwithlongsinglewellproductioncycle.1.DefinitionofShaleGasTheglobalamountofthetotalresourcesofshalegasis456trillionaccordingtoIHS(2005)forecast,whichisequivalentto1.4timesofconventionalnaturalgas,andshalegasismainlydistributedinNorthAmerica,CentralAsiaandChina,theMiddleEast,NorthAfricaandotherregionswithworldwideunconventionalnaturalgasresources.regionCBM/1012m3ShaleGas/1012m3TightGas/1012m3Total/1012m3NorthAmerica85.4108.738.8232.9LatinAmerica1.159.936.697.6WesternEurope4.414.410.028.8CentralandEasternEurope3.31.12.26.7formerSovietUnion112.017.725.5155.2MiddleEastandNorthAfrica0.072.123.395.4Sub-SaharanAfrica1.17.822.231.0ChinaandcentralAsia34.499.810.0144.2Pacificregion(OECD)13.365.520.098.7otherAsia-Pacificregion0.08.915.524.4southernAsia1.1—5.56.7Total256.1456.0209.6921.4UnconventionalGasResourcesinWorld2.TheglobalshalegasresourcesisabundantTheshalereservoirofChinaarewidespreadTwotype：marine,continentaldistributioncharacteristicsTuhaBasinP-JOrdosTTarimbasin€SouthChinaZ-TSongliaoBasionKNorthChinaPt-OZhungaerBasinP-JBohaiwanbayEPaleozoicmarineshaleinSouthChinaPaleozoicmarineshaleinNorthChinaTarimbasin:Є-OmarineshaleSongliaobasin:CretaceouslacustrineshaleZhungaerbasin:P/J1-2laucstrineshaleOrdosbasin:TriassicshaleTuhabasin:J1-23.ShaleGasReservoirCharacteristicsofChinaSouthregionProterozoic-Paleozoicdevelopedsixsetsofmarineshaleformation,whereinSilurianLongmaxigroupandtheCambrianQiongzhusigroupshalehashighorganicmattercontent,highthickness,andgreatshalegasresourcepotential.FormationTOC，%Ro%thicknessmPermian龙潭组0.34~2.181.1~3.1100~200Devonian罗富组0.27~2.331.8~3.5200~250silurian龙马溪1.88~4.362.4~3.3100~500ordovacion奥陶系0.16~1.971.7~4.6100~300cambrian筇竹寺1.50~5.702.33~4.12150~400Sinian陡山沱0.19~2.042.67~4.5100~200SouthMarinePhaseShaleOCandThicknessTable（1）SouthSilurianSystemandCambrianSystemarethemaintargetlayersSouthernProterozoic-PaleozoicStratigraphicHistogramHydrocarbongenerationandexpulsionamountofhydrocarbonsourcerockscanbeestimatedaccordingtooilandgasorganiccausetheory,theminingfactorcanbemultipliedtoknowtheoilandgasrecoverableresourcesofthestudyarea;GeneralEvaluatingMethodPrerequisite:IftheevaluationBasin(evaluationarea)hassimilaroilandgasgeologicalconditionswithananaloguebasin(analogarea)withclearformationconditions,theoilandgasrichnessofthetwoareasisthesame.Therelationbetweeneachfactorandtheoilandgasresourceamountshouldberespectivelycalculatedfordifferentevaluationunitsintheoilandgascontainingsystemspacethroughdetailedanalysisofthestudyarea,andfinally,theoilandgasresourceamountunderdifferentpossibilitiesshouldbecalculated.MethodofGeneticMethodofAnalogueMethodofStatisticalAnalysisConclusion:theanalogymethodisadoptedforstudyingevaluationofshalegasresourcesundertheconditionoflowdegreeofexploration.GeologicAssessmentofshalegasResources天然气资源丰度，108m3/104km3000.5150010001500200025003000天然气资源丰度，108m3/104km3000.5150010001500200025003000天然气资源丰度，108m3/104km3000.5150010001500200025003000（b）克拉通盆地（a）前陆盆地（c）拗陷盆地天然气资源丰度，108m3/104km3000.5150010001500200025003000天然气资源丰度，108m3/104km3000.5150010001500200025003000天然气资源丰度，108m3/104km3000.5150010001500200025003000（b）克拉通盆地（a）前陆盆地（c）拗陷盆地resources=resourcesabundance*basinareaDifferentTypesBasinofResourcesAbundanceforelandbasincratonbasindepressedbasinprobabilityprobabilityprobabilityResourcesAbundance108m3/104km3ResourcesAbundance108m3/104km3ResourcesAbundance108m3/104km3BasinTypeArea104Km2AgeTotalresources（106m3）ResourcesAbundance（108m3/104m3t）Appalachiancratonbasin28D15120540YangtzeRegioncrato