Reservoir Structures of the Upper Ordovician Reef Complexes in Tazhong 83-16 Well Area, Tarim Block
详细信息
- 责任者：Wang Zhenyu (Resource and Environment School ; Southwestern University of Petroleum ; Chengdu 610500 ; China) ; Zhang Yunfeng
- 刊名：Geological Journal of China Universities
- 出版年：2011
- 卷期：17(4)
- 关键词：生物礁油气藏 ; bioherm reservoir ; 储层性质 ; reservoir properties ; 塔里木板块 ; Tarim Plate
- 页码：p.577-585
- 图表：7 illus., 17 refs.
- 分类号：1003
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
Carbonate sequences of the upper Ordovician Lianglitag Formation along the Tazhong 83-Tazhong 16 well blocks, Slope Break I, Tarim Block is 170~300 m thick and notable as reservoirs of oil-gas. Based on the analysis of drilling cores, thin sections and logging parameters, types of reservoir space are recognized as cave, intragranularly dissolved pores, intercrystalline dissolved pores, moldic pore, biologic dorsal pore, organic framework pore and micro-fracture. The features of the void structures as well as their associations are catalogued as vug, fracture-vug,and fracture configuration types, respectively, and are in similar abundance. Therefore, the authors consider it a potential area for high quality type I andⅡ reservoirs.
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