中扬子地区海相碳酸盐岩储层类型和特征

中扬子地区上震旦统至中三叠统主要为一套海相碳酸盐岩沉积，厚度６０００～１００００ｍ。本文在沉积学和成岩作用研究的基础上，利用大量地面和井下资料，论述了中扬子地区海相碳酸盐岩储集岩类、储集空间类型、储集空间组合特征和储层类型，探讨了控制本区储层发育的主要因素，如胶结作用、白云石化作用、溶解作用和充填作用等，最后对区内各储集层段进行了评价。

TYPE AND PROPERTY OF MARINE CARBONATE RESERVOIR IN MIDDLE YANGTZE RIVER AREA

The upper Sinian to middle Triassic in middle Yangtze river area is mainly composed of marine carbonate rocks with a thickness of six to ten kilometers. Based on a sedimentologied anddiagenesis study, using surface and subsurface data, the reservoir properties of marine carbonate rocks in middle Yangtze river area, including reservoir rocks, storage space, and typesof reservoir, are discussed in detail. The controlling factors of reservoir including sedimentation and diagenesis were approached, the study shows that cementation, dolomitization, solution and filling are principal factors in controlling the reservoir properties. Furthermore, an evaluation of individual reservoir layer has been made in this paper.