:1000-0747(2005)03-0125-05赵文智,毕海滨(中国石油勘探开发研究院):中国石油天然气股份有限公司重点科技项目“油气勘探生产发展战略及经济评价方法研究”(050030001):自从PetroChina在美国证券交易所上市以来,每年油气探明储量的评估主要按美国证券交易委员会(SEC)的储量定义进行,评估结果与中方存在较大差异,有效厚度的取值是导致差异的主要原因之一。中、西方有效厚度评估方法的差异主要表现在对有效厚度的含义、单井有效厚度确定与应用范围、计算单元有效厚度确定以及有效厚度与储量级别对应关系的相关操作方法等诸多方面。了解这些差异,可以正确理解中方与SEC储量计算差异的原因,也可以为我国储量管理与国际接轨提供桥梁。图5表1参8:有效厚度;评估;差异;储量;石油;天然气:TE155 :A0PetroChina,(SEC)[1],。。SEC,;,。、。SEC(SPE)[2],SPE。,SECSPE,,SPE,SEC,。SPE,[3]。,,SPE,SEC,。3:①,;②;③。3(、),,。、,。,。。1,、、。1.1《/》[4]:,()()()。《》,,(),、。SPE,[5]。,(、)、、,。,,。,SPE125 20056 PETROLEUMEXPLORATIONANDDEVELOPMENT Vol.32 No.3,。1.21.2.1有效厚度下限标准的确定,。,;,,。[6]。[7],(K)0.1~100mD。,:,K≥1mD;,K≥0.5mD;,K≥0.1mD。。76,0.1~40mD,、100mD。1,10mD,0.1mD,。,。10mD,。(2),,7%。1 2 1.2.2单井有效厚度取值的应用[8],,,,,、(ⅠⅡ)()3。,,,。,,。SPE,,,。,,“”“”3,3。、,。①A,,,,,A(proved);②B,,A,B(probable);③C,,C,,C(possible)。3。Gabus-3B,3(1b、1a1)DST,A;3,3,B;,,C。1.3,。,,。126 Vol.32 No.3 3 、。1.3.1中方强调采用多种方法综合取值,。,,。 (),()。,。,,;。,。,,。,。,。,,,,,。1,、。,,,。1 (m)TⅠ27.307.125.10TⅡ11.889.989.07TⅢ7.175.28S1,S26121.718.118.2Nm26.1820.9631.723.6834.533.433.21.3.2SPE强调采用等值线面积权衡法SPE,,。,,。,、,。,;,。,。4。,1,“”,“”;5,“”,“”,;4,。,。1.41.4.1中国的有效厚度一般不影响储量级别 ,(、127 20056 :4 )。。,、、,,;,,。,。,,。“”,、,,。1.4.2SPE强调以单井有效厚度及单元平均有效厚度的证实程度决定储量的级别SPE,,,,、,,。5,15m。5a,10m,,;5b,15m,,“+”;5c,20m,,“++”。,“”,,,3。,。5 ,,。,SPE,,,“”、“+”“++”。1.4.3SPE储量定义中与确定有效厚度有关的做法①,,“0”,。,,、、,,,“0”;,,,。6,,、,,,,,。。128 Vol.32 No.3 6 ②,。,,,。,,,,。6101,30%。。2、,。,SPE,、。()();SPE。、()3,,;SPE“”“”A、B、C3,、。,;SPE。,,、。:[1] .[C].:,1999.18-19.[2] Petroleumresourcesclassificationsystemanddefinitions[EB/OL].[3] SocietyofPetroleumEngineers.Guidelinesfortheevaluationofpetroleumreservesandresources[A].AmericaSocietyofPetroleumEngineersInc.,2001.[4] GBn269-88.[S].:,1988.[5]DeGolyer,MacNauGhton.MethodologyonSECreservesstandardsandevaluationapproachforreportingprovedreservesandstandardizedmeasureofdiscountedfuturenetcashflowsforpetrochinacompanylimited[C].DALLAS,TEXAS,2002.[6] .[J].,2004,31(5):140-144.[7]Pirson,SylvainJ.Professorofpetroleumengineering[M].OilReservoirEngineering,TheUniversityofTexas,1958.[8] ,,,.[M].:,1990.:赵文智(1958-),男,河北昌黎人,中国石油勘探开发研究院教授级高级工程师,博士生导师,获李四光地质科学奖,从事石油地质综合研究与油气勘探科研管理工作。地址:北京市学院路20号910信箱,院部,电话:(010)62097095。:2004-10-10( )DifferencesofnetpayestimationbetweenChinaandSECZHAOWen-zhi,BIHai-bin(PetroChinaExploration&DevelopmentResearchInstitute,Beijing100083,China)Abstract:SincePetroChinahasgotthesuccessofIPOintheNewYorkStockmarket,theprovedreserveshavebeenestimatedbythereservesdefinitionofUSSecuritiesandExchangeCommission(SEC).ThereisabigdifferencebetweenreservesresultsestimatedbyChineseregulationsandSEC.ThenetpayisthemajorparameterthatstronglyaffectstheresultsofreservesestimationandcausesthedifferencebetweenChineseandSECestimations.Itisbelievedthatthereareseveralreasonsresultinginthedifferencessuchasnetpaydefinition,identificationofnetpayincommercialwells,identificationofnetpayinreservescalculationunits,andtherelationshipbetweennetpayandthereservesclassification,etc.ItisveryhelpfulandvaluabletorecognizethesedifferencesinreservesestimationandunderstandthediversityinreservesestimationbetweenChinaandSEC.GoodunderstandingonthesedifferencesmightprovideatoolforintercommunicatingChinaandwesterncountriesinreservesmanagement.Keywords:netpay;estimation;differences;reserves;oil;gas129 20056 :