Hydrocarbon Accumulation Features and Main Controlling Factors of Beach Bar Sandstone in Upper Es<SUB>4 Formation in Boxing Oilfield, Dongying Depression
详细信息
- 责任者：Tan Lijuan (College of Geo-Resources and Information ; China University of Petroleum ; Qingdao 266555 ; China) ; Guo Song
- 刊名：Journal of China University of Petroleum
- 出版年：2011
- 卷期：35(2)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 油气藏形成 ; reservoir formation ; 东营凹陷 ; Dongying Sag
- 页码：p.25-31
- 图表：8 illus., 1 table, 17 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
Summary name="EnDivSummary">Guided by the formation mechanism of subtle pools, the controlling factors of hydrocarbon accumulation were discussed in beach bar sandstone from upper Es4 Formation in Boxing Oilfield, Dongying Depression. The results show that the hydrocarbon distribution was extremely heterogeneous. Hydrocarbon mainly concentrated in the fault belt, the main body and the edge of beach bar which had thick sand. There developed four kinds of oil and gas pools. On the premise of similar oil source and tectonic setting, physical feature and heterogeneity of the reservoir were the most important factors for controlling hydrocarbon accumulation. Basic migration pathways included interconnected pores, microbedding planes and layer interfaces. The sand body distribution,structure configuration and space allocation of fault system controlled the regional migration direction and hydrocarbon accumulation location.