中亚南部湖盆浅水辫状河三角洲识别标志与沉积模式研究
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摘要
以岩心相、测井相、地震相为标志,通过对中亚南部湖盆Aryskum组古地理背景、砂体展布、水动力条件、沉积构造及地球物理响应等进行综合研究,认为其属于浅水粗粒辫状河三角洲沉积环境,主要发育浅水辫状河三角洲前缘亚相的水下分支河道和支流间湾沉积微相,其中,水下分支河道比较发育,不同方向的河道相互叠置,平面上连片分布,可形成有利的储集砂体。
Based on core,logging and geophysical data,an integral study was conducted on paleogeographic background,sandbody distribution,hydrodynamic force condition,sedimentary structure and geophysical response of South Central Asia in Aryskum Formation.It is considered that it belongs to shallow and coarse braided river delta,underwater distributary channel and underwater interfluve are the main sedimentary microfacies,in which nnderwater distributary channels are well developed,channels from different directions superpose and stretches over sandbody spreaded in the plane,it is the favorable reservoir.
Based on core,logging and geophysical data,an integral study was conducted on paleogeographic background,sandbody distribution,hydrodynamic force condition,sedimentary structure and geophysical response of South Central Asia in Aryskum Formation.It is considered that it belongs to shallow and coarse braided river delta,underwater distributary channel and underwater interfluve are the main sedimentary microfacies,in which nnderwater distributary channels are well developed,channels from different directions superpose and stretches over sandbody spreaded in the plane,it is the favorable reservoir.
引文
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[2]胡明毅,马艳荣,刘仙晴,等.大型坳陷型湖盆浅水三角洲沉积特征及沉积相模式——以松辽盆地茂兴-敖南地区泉四段为例[J].石油天然气学报,2009,31(3):13～17.
[3]吕晓光,李长山,蔡希源,等.松辽大型浅水湖盆三角洲沉积特征及前缘相储层结构模型[J].沉积学报,1999,17(4):572～576.
[4]王建功,王天琦,卫平生,等.大型坳陷湖盆浅水三角洲沉积模式——以松辽盆地北部葡萄花油层为例[J].岩性油气藏,2007,19(2):28～34.
[5]席胜利,李文厚,刘新社,等.鄂尔多斯盆地神木地区下二叠统太原组浅水三角洲沉积特征[J].古地理学报,2009,11(2):187～194.
[6]朱筱敏,张义娜,杨俊生,等.准噶尔盆地侏罗系辫状河三角洲沉积特征[J].石油与天然气地质,2008,29(2):244～251.
[7]邱子刚,戴雄军,施小荣.准噶尔盆地莫北凸起侏罗系三工河组沉积相[J].石油天然气学报,2010,32(5):183～186.
[8]杨东明,姜在兴,李葵英,等.济阳坳陷馆陶组辫状河三角洲-浅水湖泊沉积体系[J].西安石油大学学报(自然科学版),2004,19(6):15～19.
[9]孙和风,周心怀,彭文绪,等.黄河口凹陷新近系浅水三角洲岩性油气藏成藏模式[J].大庆石油学院学报,2010,34(2):11～15.
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