塔中HI气田含砾砂岩段沉积粒度特征分析
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摘要
利用塔中地区HI井区主要取芯井的粒度资料,分析了该区含砾砂岩段粒度参数、频率分布曲线、C-M图以及概率累积曲线的特征,并结合测井相、地震属性探讨了该区主要发育河口湾沉积体系,认为其亚相由潮坪、潮汐砂坝、潮控河道组成,并且归纳出各亚相中不同微相所对应的概率累积曲线形态特征。
Based on grain-size data of major cored wells in HI gasfield, central Tarim Basin, we analyzed some data from the pebbly sandstone, including: the grain-size data, the frequency distribution curve, the C-M figure and the characteristics of probability cumulative curve. Combined with electrofacies and seismic attribution, the depositional system developed in the estuary was discussed. Its subfacies are composed of tidal flat, tidal sandbar and flvuial channel. Finally, the morphologic characteristic of probability cumulative curve which is corresponding to different microfacies in subfacies was summed up.
Based on grain-size data of major cored wells in HI gasfield, central Tarim Basin, we analyzed some data from the pebbly sandstone, including: the grain-size data, the frequency distribution curve, the C-M figure and the characteristics of probability cumulative curve. Combined with electrofacies and seismic attribution, the depositional system developed in the estuary was discussed. Its subfacies are composed of tidal flat, tidal sandbar and flvuial channel. Finally, the morphologic characteristic of probability cumulative curve which is corresponding to different microfacies in subfacies was summed up.
引文
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[3]郭建华,吴智勇,刘生国,等.塔中4井区东河砂岩段中的河口湾沉积[J].江汉石油学院学报,1995,12(4):5-11.
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[2]朱筱敏.塔里木盆地东河砂岩沉积储层特征[M].北京:石油工业出版社,2006:36-42.
[3]郭建华,吴智勇,刘生国,等.塔中4井区东河砂岩段中的河口湾沉积[J].江汉石油学院学报,1995,12(4):5-11.
[4]赵澄林,朱筱敏.沉积岩石学[M].北京:石油工业出版社,2001:1-407.
[5]齐永安.河口湾相模式研究[J].地质科技情报,1999,3(1):45-49.
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