牛庄油田王68井区岩性隐蔽油藏滚动开发实践

doi:10.11743/ogg20050522

摘要/Abstract

摘要：

分析牛庄油田王68井区沙河街组三段中亚段(沙三中)目的层的地层、构造、储层和油藏特征,表明王68井区与相邻牛20井区沙三中砂体为半深湖-深湖环境的滑塌浊积岩沉积,含油砂体层位相同,厚度、岩性、分层特征都可对比;油藏类型也均为岩性隐蔽油藏。王68井区和牛20井区分别位于牛庄一号断层的两侧。由此可见,牛庄一号断层并不控制下盘王68井区沙三中砂体的沉积。利用已开发的牛20井区经验指导王68井区的滚动开发工作取得了显著的效果,探明石油地质储量305×10⁴t,建成原油生产能力3.5×10⁴t。

关键词: 滑塌浊积岩, 低渗透油藏, 岩性隐蔽油藏, 滚动开发, 牛庄油田

Abstract:

Through analyzing the characteristics of strata,structure,reservoir and oil pool of the middle 3^rd member of Shahejie formation(Es³) in Wang 68 wellblock of Niuzhuang oilfield,it is believed that the middle Es³ sandbodies both in Wang 68 wellblock and in the adjacent Niu 20 wellblock are fluxoturbidites deposited in semi-deep and deep lacustrine environment.The sandbodies are in the same horizons;the thickness,lithology and layering characteristics are correlatable;and the reservoirs in both wellblocks are of lithologic subtle types.Wang 68 and Niu 20 wellblocks are respectively located on both sides of Niuzhuang-1 fault.Therefore,the deposition of the middle Es³ sandbodies in Wang 68 wellblock on the footwall would not be controlled by Niu-zhuang-1 fault.The development experiences in Niu 20 wellblock are used to guide the progressive development in Wang 68 wellblock,achieving proved oil reserves of 3.05 million tons and oil production capacity of 35,000 tons.

Key words: fluxoturbidite, low permeability reservoir, subtle lithologic reservoir, progressive development, Niuzhuang oilfield

中图分类号:

TE311

王光付,战春光. 牛庄油田王68井区岩性隐蔽油藏滚动开发实践[J]. 石油与天然气地质, 2005, 26(5): 694-697. doi: 10.11743/ogg20050522 Wang Guangfu,Zhan Chunguang. Progressive development of subtle lithologic reservoirs in Wang 68 wellblock of Niuzhuang oifleild[J]. Oil & Gas Geology, 2005, 26(5): 694-697. doi: 10.11743/ogg20050522

参考文献

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