东营凹陷梁11断块沙二段储层精细描述
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摘要
本文以沉积学、高分辨率层序地层学以及储层层次界面理论为指导,充分利用岩心、粒度分析、测井及数字处理成果等,在前人划分的体系域、准层序组的基础上,采用“等高程沉积时间单元对比法”、“旋回对比,分级控制”方法实现小层及单砂层的划分与对比,并以层次界面理论为指导进行单砂层内部成因体的识别、划分与对比。通过以上环节将研究区沙河街组沙二段7、8砂层组的7个小层划分为20个单砂层,并将8个重点砂层划分为18个成因体。在此地层格架内,将研究区沉积体划分出7种结构要素:水下分流河道、水下天然堤、废弃河道、分流间湾、河口坝、远砂坝、三角洲泥。其中,将河口坝进一步细分出5个次级结构要素:坝顶、坝主体、坝缘、坝间和坝侧翼。并对结构要素平面及垂向组合特征进行研究,总结出该区储层结构要素的空间组合类型。同时,深入研究了区内储层的平面、层内、层间、微观非均质性。在此基础上,采用流动分层指数法,建立了研究区沙二段7、8砂层组流动单元划分标准,据此将研究区各单砂层、成因体划分为四类流动单元,并研究了各储集体流动单元的平面分布特征。
In this paper,with the guiding of sedimengtology,high resolution sequence stratigra phy and the theory of reservoir hierarchuy interface,made full use of core,grading analys -is,well logging and its digital process outcome and so on.on basis of the predecessor who divided the area into system tracts,parasequence sets,the mathod of“isobath time quautum contrast”and“cyclic contrast,step control”are adopted to fulfill the division and description of fine strata and monosandbody.and take the theory of hierarchuy interface as the instruction to distinguish,divide and contract causal body inside mono-sandbody.From the link above,divided the seven fine stratas of Es27 and 8 in this area into 20 monosandbodies,and further divided 8 main monosandbodies into 18 causal bodies. Inside this stratigraphic framework,divided the deposite in the area into 7 structural elements:underwater distributary channel,underwater natural levee,abandoned channel,interdistributary bay,estuary dam,distal bar and delta mud. Thereamong,on the basis of the differences of position,thickness of sand layer and physical properties,further divided estuary dam into 5 substructural elements: damtop,main dam,dam edge,interbar,dam laterl wing.and researched the characteristics of structural elements in horizon and vertic .and summarized their spatial organization types. at the same time,intensivly studied horizontal,interlayer,intralayer and microscale heterogeneity of reservoirs in the area.In this foundation, adopted the method of FZI to set up the divided standard for flow unit of Es27 and 8 of this area,hereby, divided the monosandbodies and causal bodies into four types of flow unit,and studied the regional dist-ribution characteristic of the reservoir flow units.
In this paper,with the guiding of sedimengtology,high resolution sequence stratigra phy and the theory of reservoir hierarchuy interface,made full use of core,grading analys -is,well logging and its digital process outcome and so on.on basis of the predecessor who divided the area into system tracts,parasequence sets,the mathod of“isobath time quautum contrast”and“cyclic contrast,step control”are adopted to fulfill the division and description of fine strata and monosandbody.and take the theory of hierarchuy interface as the instruction to distinguish,divide and contract causal body inside mono-sandbody.From the link above,divided the seven fine stratas of Es27 and 8 in this area into 20 monosandbodies,and further divided 8 main monosandbodies into 18 causal bodies. Inside this stratigraphic framework,divided the deposite in the area into 7 structural elements:underwater distributary channel,underwater natural levee,abandoned channel,interdistributary bay,estuary dam,distal bar and delta mud. Thereamong,on the basis of the differences of position,thickness of sand layer and physical properties,further divided estuary dam into 5 substructural elements: damtop,main dam,dam edge,interbar,dam laterl wing.and researched the characteristics of structural elements in horizon and vertic .and summarized their spatial organization types. at the same time,intensivly studied horizontal,interlayer,intralayer and microscale heterogeneity of reservoirs in the area.In this foundation, adopted the method of FZI to set up the divided standard for flow unit of Es27 and 8 of this area,hereby, divided the monosandbodies and causal bodies into four types of flow unit,and studied the regional dist-ribution characteristic of the reservoir flow units.
引文
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[2] A.D.Miall.Architecture element and bounding surfaces in fluvial deposits,anatomy of the Kayenta formation(Lower Jurassic),Southeast Corolado[J].Sedimentary Geology. 1988,55:233～262.
[3] J. R.L.Allen.Study in fluviatile sedimentation:six cyclothems from the lower Old Red Sandstone. Anglowelsh basin[J].Sedimentology.1964,3:163～198.
[4]李庆明.储层建筑结构分析技术[J].河南石油,2000(2):18～23.
[5]兰朝利.李继亮,陈海泓.冲积沉积构造单元分析法综述[J].地质论评,1999, 45(6):603～612.
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[7]马世忠,王一博,崔义等.油气区水下分流河道内部建筑结构模式的建立[J].大庆石油学院学报,2006,30(5):1～3.
[8]穆龙新,贾爱林,陈亮等.储层精细研究方法——国内外露头储层和现代沉积及精细地质建模研究[M].北京:石油工业出版社,2000:45～48.
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[12] Guangming Ti,Baker Hughes INTEQ,Ogbe DO et al.1995.Use of flow unit as a tool for reservoir description:A case study [J].SPE Fornation Evalution,10.
[13]姚光庆,马正.储层描述尺度与储层地质模型分级[J].石油实验地质,第4期.1994:9～13.
[14]焦养泉等.碎屑岩储集层物性非均质性的层次结构[J].石油与天然气地质,1998,19(2):22～26.
[15]裘亦楠.油藏描述[M].北京:石油出版社.1996:33～38.
[16]穆龙新,裘亦楠.不同开发阶段的油藏描述[M].北京:石油工业出版社.1999.
[17]李阳,刘建民.流动单元研究的原理和方法:地质出版社.2005:5～13.
[18]宋万超,孙焕泉,孙国.油藏开发流体动力地质作用——以胜坨油田二区为例[J].石油学报,2002,23(3):52～55.
[19]李阳.储层流动单元模式及剩余油分布规律[J].石油学报,2003,24(3):52～55.
[20]吴诗勇,李自安.精细地质研究现状及发展趋势[J].地球科学与环境学报,2006,28(2):58～63.
[21]王化爱,张建忠.陆相断陷盆地三角洲地层划分与对比——以济阳坳陷东营三角洲为例[J].油气地质与采收率,2004,11(3):1～3.
[22]客伟利,李建明.濮城油田沙二下储层划分与对比研究[J].江汉石油学院学报,2004,26:207～209.
[23]朱小燕,李爱琴.镇北油田延长组3油层组精细地层划分与对比[J].岩性油气藏,2007,19(4):82～86.
[24]赵虹.安塞油田长6油层组精细地层划分与对比[J].西北大学学报,2004,34(4):461～463.
[25]肖传桃,刘莉.层序地层学的研究现状及有关理论问题探讨[J].石油天然气学报,2006,28(6):1～7.
[26] Vail.P.R.Seismic stratigraphy interpretation using sequence stratigraphy.Part 1: Seismic stratigraphy interpretation procedure [J].American Association of Petroleum Geologists,Studies in Geology,1987,27:1～10.
[27] Galloway.W.E.Genetic stratigraphy sequence in basin analysis I: Architecture and genesis of flooding-surface bounded depositional units [J].AAPG Bull,1989,73: 125～142.
[28] J.H.Johnson,Klaper G.North American midcontinent devonian T-R cycles [J].Oklah- oma Geological Survey Bulletin,1992,145:127～135.
[29]吴富强,刘家铎,胡雪等.经典层序地层学与高分辨率层序地层学[J].中国海上油气地质,2001,15(3):220～226.
[30] T.A.Cross.Controls on coal distribution in transgresssive-regressive cycles.UpperCretaceous·Western Interior.U.S.A [A].Wilgus CK·Sea-level changes: An integrated approach [C].SPEM Special Publish,1988,42:371～380.
[31]邓宏文,王洪亮,李小孟.高分辨率层序地层对比在河流相中的应用[J].石油与天然气地质,1997,18(2):90～95.
[32]邓宏文,王洪亮.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177～183.
[33]赵翰卿.储层非均质体系、砂体内部建筑结构和流动单元研究思路探讨[J].大庆石油地质与开发,2002,21(6):16～18.
[34]姚建新,刘训等.新疆阿图什温古尔地区二叠系牙形石动物群[J].地质论评,2002,48(5):505～509.
[35]邓宏文,王红亮.高分辨率层序地层学——原理及应用[M].北京:地质出版社,1993:51～60.
[36]辛艳朋,牟中海.退积式扇三角洲高分辨率层序地层学研究[J].西南石油大学学报,2007,29(2):68～71.
[37]吴因业.陆相盆地层序地层学分析的方法与实践[J].石油勘探与开发,1997,24(5):7～10.
[38]李丕龙等.陆相断陷盆地油气地质与勘探[M].北京:石油工业出版社,2003,34～35.
[39]束青林.孤岛油田馆陶组河流相储层隔夹层成因研究[J].特种油气藏,2006,27(3):100～103.
[40]柳成志,张雁等.砂岩储层隔夹层的形成机理及分布特征——以萨中地区PI2小层曲流河河道砂岩为例[J].天然气工业,2006,26(7):15～17.
[41]张吉,张烈辉等.储层流动单元成因及其影响因素分析[J].特种油气藏,2005,12(2):15～18.
[42]吴胜和,王仲林.陆相储层流动单元研究的新思路[J].沉积学报,1999,17(2):252～256.
[2] A.D.Miall.Architecture element and bounding surfaces in fluvial deposits,anatomy of the Kayenta formation(Lower Jurassic),Southeast Corolado[J].Sedimentary Geology. 1988,55:233～262.
[3] J. R.L.Allen.Study in fluviatile sedimentation:six cyclothems from the lower Old Red Sandstone. Anglowelsh basin[J].Sedimentology.1964,3:163～198.
[4]李庆明.储层建筑结构分析技术[J].河南石油,2000(2):18～23.
[5]兰朝利.李继亮,陈海泓.冲积沉积构造单元分析法综述[J].地质论评,1999, 45(6):603～612.
[6] A.D.Miall.The Geology of Fluvial Deposits[M].Berlin Springer Verlag.1996,75～178.
[7]马世忠,王一博,崔义等.油气区水下分流河道内部建筑结构模式的建立[J].大庆石油学院学报,2006,30(5):1～3.
[8]穆龙新,贾爱林,陈亮等.储层精细研究方法——国内外露头储层和现代沉积及精细地质建模研究[M].北京:石油工业出版社,2000:45～48.
[9] C.L.Hear et al.1984.Geological facters influencing reservoir performance of the Hartzog Draw Field,Wyoming[J].AAPG Annual Meeting,AAPG Bulletin,71(5).
[10] W.J.Ebank.1987.Flow unit concept in tegrated apporch to reservoir description for engineering project[J].AAPG Annual Meeting,AAPG Bulletin,71(5).
[11] Amaefule JO,Altunbay M. Enhanced Reservoir Description:Using Core and Log Data to Identify Hydraulic ( Flow ) Units Andpredict Permeability in Uncored Intervals/Well[C]// R SPE26436 Presented at the 68th Annual SPE Conference and Exhibition.Houston,Texas,1993.
[12] Guangming Ti,Baker Hughes INTEQ,Ogbe DO et al.1995.Use of flow unit as a tool for reservoir description:A case study [J].SPE Fornation Evalution,10.
[13]姚光庆,马正.储层描述尺度与储层地质模型分级[J].石油实验地质,第4期.1994:9～13.
[14]焦养泉等.碎屑岩储集层物性非均质性的层次结构[J].石油与天然气地质,1998,19(2):22～26.
[15]裘亦楠.油藏描述[M].北京:石油出版社.1996:33～38.
[16]穆龙新,裘亦楠.不同开发阶段的油藏描述[M].北京:石油工业出版社.1999.
[17]李阳,刘建民.流动单元研究的原理和方法:地质出版社.2005:5～13.
[18]宋万超,孙焕泉,孙国.油藏开发流体动力地质作用——以胜坨油田二区为例[J].石油学报,2002,23(3):52～55.
[19]李阳.储层流动单元模式及剩余油分布规律[J].石油学报,2003,24(3):52～55.
[20]吴诗勇,李自安.精细地质研究现状及发展趋势[J].地球科学与环境学报,2006,28(2):58～63.
[21]王化爱,张建忠.陆相断陷盆地三角洲地层划分与对比——以济阳坳陷东营三角洲为例[J].油气地质与采收率,2004,11(3):1～3.
[22]客伟利,李建明.濮城油田沙二下储层划分与对比研究[J].江汉石油学院学报,2004,26:207～209.
[23]朱小燕,李爱琴.镇北油田延长组3油层组精细地层划分与对比[J].岩性油气藏,2007,19(4):82～86.
[24]赵虹.安塞油田长6油层组精细地层划分与对比[J].西北大学学报,2004,34(4):461～463.
[25]肖传桃,刘莉.层序地层学的研究现状及有关理论问题探讨[J].石油天然气学报,2006,28(6):1～7.
[26] Vail.P.R.Seismic stratigraphy interpretation using sequence stratigraphy.Part 1: Seismic stratigraphy interpretation procedure [J].American Association of Petroleum Geologists,Studies in Geology,1987,27:1～10.
[27] Galloway.W.E.Genetic stratigraphy sequence in basin analysis I: Architecture and genesis of flooding-surface bounded depositional units [J].AAPG Bull,1989,73: 125～142.
[28] J.H.Johnson,Klaper G.North American midcontinent devonian T-R cycles [J].Oklah- oma Geological Survey Bulletin,1992,145:127～135.
[29]吴富强,刘家铎,胡雪等.经典层序地层学与高分辨率层序地层学[J].中国海上油气地质,2001,15(3):220～226.
[30] T.A.Cross.Controls on coal distribution in transgresssive-regressive cycles.UpperCretaceous·Western Interior.U.S.A [A].Wilgus CK·Sea-level changes: An integrated approach [C].SPEM Special Publish,1988,42:371～380.
[31]邓宏文,王洪亮,李小孟.高分辨率层序地层对比在河流相中的应用[J].石油与天然气地质,1997,18(2):90～95.
[32]邓宏文,王洪亮.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177～183.
[33]赵翰卿.储层非均质体系、砂体内部建筑结构和流动单元研究思路探讨[J].大庆石油地质与开发,2002,21(6):16～18.
[34]姚建新,刘训等.新疆阿图什温古尔地区二叠系牙形石动物群[J].地质论评,2002,48(5):505～509.
[35]邓宏文,王红亮.高分辨率层序地层学——原理及应用[M].北京:地质出版社,1993:51～60.
[36]辛艳朋,牟中海.退积式扇三角洲高分辨率层序地层学研究[J].西南石油大学学报,2007,29(2):68～71.
[37]吴因业.陆相盆地层序地层学分析的方法与实践[J].石油勘探与开发,1997,24(5):7～10.
[38]李丕龙等.陆相断陷盆地油气地质与勘探[M].北京:石油工业出版社,2003,34～35.
[39]束青林.孤岛油田馆陶组河流相储层隔夹层成因研究[J].特种油气藏,2006,27(3):100～103.
[40]柳成志,张雁等.砂岩储层隔夹层的形成机理及分布特征——以萨中地区PI2小层曲流河河道砂岩为例[J].天然气工业,2006,26(7):15～17.
[41]张吉,张烈辉等.储层流动单元成因及其影响因素分析[J].特种油气藏,2005,12(2):15～18.
[42]吴胜和,王仲林.陆相储层流动单元研究的新思路[J].沉积学报,1999,17(2):252～256.
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