扇三角洲高精度层序地层及其与油气聚集关系——以东营凹陷胜北断层下降盘坨76块为例
摘要
本文通过地质、地震、测井等资料,对东营凹陷胜北断层下降盘坨76块沙四上亚段扇三角洲沉积体层序地层单元进行了精确划分对比,将其划分为4个准层序、18个层组和29个单层。在扇三角洲沉积体系中,准层序及层组边界在地层记录中的表现形式随地理位置而变化;在完全由一种相构成的准层序、层组基准面旋回中,孔隙度和渗透率是A/S值变化的函数,在准层序及层组内部随A/S的变化,储层物性及其含油饱和度呈现一定的变化规律。
The division and correlation of sequence stratigraphic units are constructed for the fan delta deposits in the upper submember of the 4th member of the Shahejie Formation in the T76 block on the falling wall of the Shengbei fault in the Dongying depression,Shandong on the basis of geological data,seismic sections and well logs.These fan delta deposits are divided into 4 parasequences,18 bed sets and 29 beds.In the fan delta depositional system,the boundaries of the parasequences and bed sets are changed with the geographic positions,whereas in the base-level cycles of the parasequences and bed sets in a single facies,the porosity and permeability are the function of A/S ratios.The physical properties and oil saturation in oil reservoirs also display similar regular changes.
The division and correlation of sequence stratigraphic units are constructed for the fan delta deposits in the upper submember of the 4th member of the Shahejie Formation in the T76 block on the falling wall of the Shengbei fault in the Dongying depression,Shandong on the basis of geological data,seismic sections and well logs.These fan delta deposits are divided into 4 parasequences,18 bed sets and 29 beds.In the fan delta depositional system,the boundaries of the parasequences and bed sets are changed with the geographic positions,whereas in the base-level cycles of the parasequences and bed sets in a single facies,the porosity and permeability are the function of A/S ratios.The physical properties and oil saturation in oil reservoirs also display similar regular changes.
引文
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[4]段秋梁,武法东,陈建渝,等.渤南油田9砂层组高分辨率层序特征及其沉积演化[J].现代地质,2001,15(1):83-87.
[5]张尚锋,洪秀娥,郑荣才,等.应用高分辨率层序地层学对储层流动单元层次性进行分析——以泌阳凹陷双河油田为例[J].成都理工学院学报2002,29(2):147-151.
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[13]张春生,刘忠保,施冬,等.扇三角洲形成过程及演变规律[J].沉积学报,2000,18(4):521-527.
[14]贾爱林,穆龙新,陈亮,等.扇三角洲露头区沉积模拟[J].石油学报,2000,21(6):107-110.
[15]武法东,陈永进,李寅,等.河北滦平盆地构造演化及对扇三角洲发育的控制作用[J].现代地质,2000,14(2):179-184.
[16]焦养泉,周海明,庄新国,等.扇三角洲沉积体系及其与油气聚集关系.沉积学报[J].2000,18(1):70-75.
[17]陈永进,武法东.滦平盆地桑园营子露头剖面沉积层序的Markov链模拟[J].现代地质,2000,14(4):444-458.
[18]陈程,孙义梅,邓宏文.油田开发后期扇三角洲前缘微相分析及应用[J].现代地质,2001,15(1):88-93.
[19]赵俊青,纪友亮,夏斌,等.扇三角洲沉积体系高精度层序地层学研究[J].沉积学报.2004,22(2):302-309.
[20]邓宏文,王洪亮,祝永军,等.高分辨率层序地层学原理及应用[M].北京:地质出版社.2002:160-180.
[21]CROSS T A,BAKER M R,CHAPIN M A,CLARK et al.Application of high-resolution sequence stratigraphy to reservoiranalysis[A].R Eschard and B Doligez.Sub-surface ReservoirCharacterization from Outcrop Observations[C].Proceeding of the7th IFP Exploration and Production Research Conference,Paris:Technip,1993.11-33.
[2]林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):110-117.
[3]许广明,徐怀大,孔祥言.高分辨率层序地层学在油藏数值模拟中的应用[J].石油与天然气地质,1999,20(2):115-119.
[4]段秋梁,武法东,陈建渝,等.渤南油田9砂层组高分辨率层序特征及其沉积演化[J].现代地质,2001,15(1):83-87.
[5]张尚锋,洪秀娥,郑荣才,等.应用高分辨率层序地层学对储层流动单元层次性进行分析——以泌阳凹陷双河油田为例[J].成都理工学院学报2002,29(2):147-151.
[6]肖玉茹,何峰煜.高分辨层序地层学在储层预测中的应用[J].石油实验地质,2003,25(2):169-173.
[7]郑荣才,彭军,彭光明,等.高分辨率层序分析在油藏开发工程中的应用[J].沉积学报,2003,21(4):654-662.
[8]VAN WAGONER J C,et al.Siliciclastic sequence stratigraphy in welllogs,cores and outcrops[J].AAPG Methods in Exploration Series.1990,(7):1-55.
[9]COOPER M R.Tectonic cycles in Southern Africa[J].Earth ScienceReview,1990,28(4):321-364.
[10]MITCHUM R M,VAN WANGER J C.High frequence and theirstacking patterns:sequence stratigraphic evidence of high frequenceeustatic cycles[J].Sedimentary Geology,1991,70(2):131-160.
[11]VAIL P R,AUDEMARD F R,BOWMAN S A,et al.Thestratigraphic signatures of tectonics,eustary and sedimentology-an overview[A].Einsele G et al.Cycles and Events In Stratigra-phy[M].Berlin,Heidelberg:Spring-Verlag.1991.617-659.
[12]李思田,等:含能源盆地沉积体系——中国内陆和近海主要沉积体系类型的典型分析[M].武汉:中国地质大学出版社,1996.97-106.
[13]张春生,刘忠保,施冬,等.扇三角洲形成过程及演变规律[J].沉积学报,2000,18(4):521-527.
[14]贾爱林,穆龙新,陈亮,等.扇三角洲露头区沉积模拟[J].石油学报,2000,21(6):107-110.
[15]武法东,陈永进,李寅,等.河北滦平盆地构造演化及对扇三角洲发育的控制作用[J].现代地质,2000,14(2):179-184.
[16]焦养泉,周海明,庄新国,等.扇三角洲沉积体系及其与油气聚集关系.沉积学报[J].2000,18(1):70-75.
[17]陈永进,武法东.滦平盆地桑园营子露头剖面沉积层序的Markov链模拟[J].现代地质,2000,14(4):444-458.
[18]陈程,孙义梅,邓宏文.油田开发后期扇三角洲前缘微相分析及应用[J].现代地质,2001,15(1):88-93.
[19]赵俊青,纪友亮,夏斌,等.扇三角洲沉积体系高精度层序地层学研究[J].沉积学报.2004,22(2):302-309.
[20]邓宏文,王洪亮,祝永军,等.高分辨率层序地层学原理及应用[M].北京:地质出版社.2002:160-180.
[21]CROSS T A,BAKER M R,CHAPIN M A,CLARK et al.Application of high-resolution sequence stratigraphy to reservoiranalysis[A].R Eschard and B Doligez.Sub-surface ReservoirCharacterization from Outcrop Observations[C].Proceeding of the7th IFP Exploration and Production Research Conference,Paris:Technip,1993.11-33.
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