文南油田文33断块沉积微相与水淹规律  

Sedimentary microfacie and water-flooding analysis in Wen 33 fault-block in Wennan oil field

作　　者：李存贵[1] 薛国刚[2] 张辉[2] 

机构地区：[1]中科院地质与地球物理研究所 [2]中国石化中原油田采油四厂

出　　处：《石油勘探与开发》2003年第1期99-101,共3页Petroleum Exploration and Development

摘　　要：东濮凹陷文南油田文 33断块沙二下亚段三角洲前缘沉积主要微相类型有水下分支河道、分支河口坝、水下天然堤、决口扇、远砂坝等 ,微相分布控制主力油层的发育和物性分布。主要依据沉积微相将储集层分为 3类 ,它们的储量动用程度、水洗强度、驱油效率明显不同 ,水下分支河道砂体最易水淹 ,水下分支河道侧缘、分支河口坝次之 ,水下天然堤、决口扇及滨浅湖砂体水淹最弱。图 3表 1参The major micro-facies of delta front in the lower Es 2 formation in Wen 33 fault block composed of under-water channel, debouch bar, under-water levee and crevasse splay deposits and distal bar, which control the distribution and development of major oil reservoirs. According to the analysis of micro-facies, the reservoirs could be classified into three kinds. There are different characteristics of water-flooding, developed degree and replacement ratio of petroleum in each different reservoir. It is proved that the strongest water-flooded reservoirs should be the one developed in under-water channel, then, the edges of channel and debouch bar, and the last one is under-water levee, crevasse and beach lake.

关 键 词：三角洲 注入水 水淹 文南油田 文33断块 沉积微相 

分 类 号：TE347[石油与天然气工程—油气田开发工程] TE321