T-R旋回层序在东濮凹陷前梨园地区Es_3~3亚段储层研究中的应用
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摘要
依据对东濮凹陷前梨园地区测井、岩芯和高分辨率地震资料的综合研究 ,可将Es33亚段划分为三个湖进 -湖退 (T- R)旋回沉积层序 ,自底往上 ,Es33 层序发育辫状三角洲半深湖沉积体系 ,Es33 、Es33 层序则以扇三角洲半深湖、深湖湖底扇沉积体系为主。由沉积层序的区域对比和沉积体系的空间展布 ,建立起了前梨园地区 Es33亚段高分辨率等时地层格架 ,将储集岩层置于等时界面限定的沉积层序中进行划分和对比 ,可精确地解释砂体的成因及其横向变化规律。
On the basis of comprehensive research of log data,core samples and high resolution seismic data,three T R(Transgression Regression) sedimentary cycles are recognized in the Sub member of Es 3 3 in Qianliyuan area,Dongpu depression.Braided delta and deep lake depositional systems are developed in cycle Ⅰ,while the cycle Ⅱ and Ⅲ are mainly composed of fan delta,deep lake and lacustrine fan systems.A high resolution,equal time stratigraphic framework is established by regional correlation of sedimentary cycles and distribution of sedimentary systems.Sandbodies can be positioned in a cycle constrined by the equel time boundary,and divided and correlated,which provide reliably physical boundary for tracing and signing of sandbody′s response on seismic profile.The distribution of the reservoirs can be predicted with the analysis of sedimentary facies and multiple seismic information.
On the basis of comprehensive research of log data,core samples and high resolution seismic data,three T R(Transgression Regression) sedimentary cycles are recognized in the Sub member of Es 3 3 in Qianliyuan area,Dongpu depression.Braided delta and deep lake depositional systems are developed in cycle Ⅰ,while the cycle Ⅱ and Ⅲ are mainly composed of fan delta,deep lake and lacustrine fan systems.A high resolution,equal time stratigraphic framework is established by regional correlation of sedimentary cycles and distribution of sedimentary systems.Sandbodies can be positioned in a cycle constrined by the equel time boundary,and divided and correlated,which provide reliably physical boundary for tracing and signing of sandbody′s response on seismic profile.The distribution of the reservoirs can be predicted with the analysis of sedimentary facies and multiple seismic information.
引文
1 Van Wagoner JC et al.An Overvien of the Fundamentals of Sequence Stratigraphy and Key definitions[A] .In:Wilgus C K et al.Sea-L evel Changes:an Integrated approach[C] .Society of Economic paleontologists and Mineralogists Special Publication 42 ,1988:12 5～15 4.
2 赵春元 .东濮凹陷形成演化及油气远景 .中国含油气区构造特征 [M] .北京 :石油工业出版 ,1989.
3 Scholz C A,Rosendahl B R,Scott D L .Developm ent of coarse-grained faces in lacustrine rift basine:Examples from East Africa[J] .Geology,1990 ,18:14 0～ 14 4 .
4 顾家裕 .陆相盆地层序地层学格架概念及模式 [J] .石油勘探与开发 .1995 ,2 2 (4) :6～ 10 .
5 池英柳 ,张万选 ,张厚福 .陆相断陷盆地层序成因初探 [J] .石油学报 .1996,17(3 ) :19～ 2 6.
6 郭建华 ,宫少波 ,吴东胜 .陆相断陷湖盆 T-R旋回沉积层序与研究实例 [J] .沉积学报 ,1998,16(1) :8～ 13 .
7 郭建华 ,郭成贤 ,翟永红 .东濮凹陷前梨园次洼 Es33- 4 亚段沉积旋回与沉积体系 [J] .石油实验地质 ,1996,18(4) :3 77～ 3 84.
8 Brown L f,Fisher W l,Seismic-stratigraphic interpretation of depositional systems:examples from Brazil rift and pull-apart basins[A] .In:C.E.Payton(Editor) .Seismic Stratigraphy-Applications Hydrocarbon Exploration[C] .Am .Assoc.Pet.Geol.Mem,1997,2 6:2 13～2 48
2 赵春元 .东濮凹陷形成演化及油气远景 .中国含油气区构造特征 [M] .北京 :石油工业出版 ,1989.
3 Scholz C A,Rosendahl B R,Scott D L .Developm ent of coarse-grained faces in lacustrine rift basine:Examples from East Africa[J] .Geology,1990 ,18:14 0～ 14 4 .
4 顾家裕 .陆相盆地层序地层学格架概念及模式 [J] .石油勘探与开发 .1995 ,2 2 (4) :6～ 10 .
5 池英柳 ,张万选 ,张厚福 .陆相断陷盆地层序成因初探 [J] .石油学报 .1996,17(3 ) :19～ 2 6.
6 郭建华 ,宫少波 ,吴东胜 .陆相断陷湖盆 T-R旋回沉积层序与研究实例 [J] .沉积学报 ,1998,16(1) :8～ 13 .
7 郭建华 ,郭成贤 ,翟永红 .东濮凹陷前梨园次洼 Es33- 4 亚段沉积旋回与沉积体系 [J] .石油实验地质 ,1996,18(4) :3 77～ 3 84.
8 Brown L f,Fisher W l,Seismic-stratigraphic interpretation of depositional systems:examples from Brazil rift and pull-apart basins[A] .In:C.E.Payton(Editor) .Seismic Stratigraphy-Applications Hydrocarbon Exploration[C] .Am .Assoc.Pet.Geol.Mem,1997,2 6:2 13～2 48
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