东濮凹陷文西斜坡古盐湖沉积的油气储层预测
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摘要
早第三纪的东濮凹陷是一个典型的盐湖含油气盆地。与传统的“干盐湖”理论沉积模式相比 ,东濮凹陷下第三系沉积组合明显具有砂岩储集层层薄而且少的特点。作者讨论了在高分辨率层序地层研究基础上 ,使用地震岩性反演技术等方法预测东濮凹陷古盐湖沉积超薄储集层分布的实例。在层序地层解释的基础上 ,利用稳定泥岩的区域展布特点 ,使用JASON软件系统的储层反演功能可预测潜在的储集层分布情况 ,追踪含油气砂岩储集层的展布特征 ,预测文西斜坡的储集层展布。
Dongpu depression in Eogene is a typical oil-bearing saline basin.Compared with the conventional "Sabkha" theoretical sedimentary mode,the strata in the basin has individual features that sandstone reservoir is poor and thin.So reservoir prediction is the most important research work of petroleum geologists.This paper discusses a case that a very thin bed reservoir was predicted with a normal seismic data,which is less thick than that seismic data can resolute, based on the high-resolution sequence stratigraphy interpretation of three-dimensional seismic data,with a composed bed combining stable mudstone(condensed section) and the thin-bed sandstones, and then tracing and mapping the oil-bearing reservoir of the area with JASON lithology inversion.Finally,we predicted the sandstone reservoir in the middle Member Shasan.
Dongpu depression in Eogene is a typical oil-bearing saline basin.Compared with the conventional "Sabkha" theoretical sedimentary mode,the strata in the basin has individual features that sandstone reservoir is poor and thin.So reservoir prediction is the most important research work of petroleum geologists.This paper discusses a case that a very thin bed reservoir was predicted with a normal seismic data,which is less thick than that seismic data can resolute, based on the high-resolution sequence stratigraphy interpretation of three-dimensional seismic data,with a composed bed combining stable mudstone(condensed section) and the thin-bed sandstones, and then tracing and mapping the oil-bearing reservoir of the area with JASON lithology inversion.Finally,we predicted the sandstone reservoir in the middle Member Shasan.
引文
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[2] 张晋仁.东濮凹陷石油地质主要特征[A],中原油田科技论文集[C].北京:石油工业出版社,1995.
[3] 许化政.文留盐背斜与油气富集[A].中原油田科技论文集[C].北京:石油工业出版社,1995.
[4] 李惠生,孙永传.古盐湖沉积体系[A].含能源盆地沉积体系[C].中国地质大学出版社,1996.
[5] 马新华,华爱刚,等.含盐油气盆地[M].北京:石油工业出版社,2000.
[6] 周书欣,V .P .赖特,等.湖泊沉积体系与油气[M].北京:科学出版社,1991.
[7] ElSayed,A .A .Youssef.SequencestratigraphyoftheUpperJu rassicevaporite carbonate:SequenceatthewesternareaofWadiAlJawfMaribBasin,Yemen[J].CarbonatesandEvaporites,1999,13(2):168-173.
[8] Wilgus,C K etalSeaLevelChanges anIntegratedApproach[A].SEPMSpecialPublicationNo42[C].Tulsa:SociettyofEconomicPaleontologistsandMineralogists,1988.
[9] 陈开远,孙爱霞,杜宁平.成油体系中的层序地层学[J].石油与天然气地质,1998,19(3):221—227
[10] 徐怀大,王世风,陈开远.地震地层学解释基础[M].中国地质大学出版社,1990.
[11] VanWagonaret al.SiliciclasticSequenceStratigraphyinWellLogs,Cores,andOutcrops:ConceptsforHigh-Resolu tionCorrelationofTimeandFacies[A].AAPGMethedinEx plorationSeriesNo7[C].AAPGBookhouse,1990.
[12] Steinhoff,I &C Strohmenger.Faciesdifferentiationandse quencestratigraphyinancienceevaporitebasins:AexamplefromthebasalZechstein(UpperPermianofGermany)[J].CarbonatesandEvaporites,1999,14(2):164-181.
[13] 陈开远,等.新港地区沙三段三维地震层序地层特征[J].地球科学,2000,25(3):267-272.
[14] T .A Cross&M .A .Lessenger.SedimentVolumePartitioning:RationaleforStratigraphicModelEvaluationandHigh-resolu tionStratigraphicCorrelation,SequenceStratigraphy:ConceptsandApplications[A].NPFSpecialPublicationNo.8[C].Amsterdam:ElsevierPub,1998.
[15] Dolberg,D .,J.Helgesen&T .H .Hanssenetal..Porositypredictionfromseismicinversion,LavransField,HaltenTerra nce,Norway[J].TheLeadingEDGE ,2000,(4):392-399.
[16] Helgesen,J.,D .Dolberg&S.Busman.Comparisonofcon strainedsparsespikeandstochasticinversionforporositypre dictionatKristinFiled[J].TheLeadingEDGE ,2000(4):400-407.
[17] Latimer,R .B .,R .Davison&P .VanRiel.Aninterpreter’sguidetounderstandingandworkingwithseismic-derivedacousticimpedancedata[J].TheLeadingEDGE ,2000(3):242-256.
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