石油实验地质2011，Vol.33Issue(3)：219-225,232,8.
页岩气储层类型和特征研究——以四川盆地及其周缘下古生界为例
Types and characteristics of shale gas reservoir: A case study of Lower Paleozoic in and around Sichuan Basin
摘要
Abstract
Through field observation, slice, SEM and X-ray diffraction analyses of 41 black shale samples from the Lower Cambrian and the Upper Ordovician-Lower Silurian in and around the Sichuan Basin, the characteristics of reservoir, fracture and pore of shale were studied. There are mainly 2 types of shale gas reservoir: fracture and pore. According to the features of shale gas reservoir, the control of fracture on gas accumulation as well as the nature of fracture, the generation of fracture is classified into 5 degrees-, giant, large, medium, small and microfracture. Pores include organic matter (bitumen) pore and/or kerogen network, mineral pores (mineral specific surface, inner, intercrystalline, corrosional and complex-based ones) as well as the pores between organic matter and minerals. Different fracture type, fracture scale, pore type and pore size have different control on shale storage and produce capacity. Pores serve room for gas storage in shale and determine storage capacity. Fractures work as pathways for gas migration in shale reservoir and determine produce capacity. Due to the low porosity and permeability of shale matrix, the generation scales of fracture control the quality of shale gas reservoir.关键词
裂缝/孔隙/储层类型/储层特征/页岩气/四川盆地及其周缘Key words
fracture/ porosity/ reservoir types/ reservoir characteristics/ shale gas/ in and around Sichuan Basin分类
能源科技引用本文复制引用
聂海宽,张金川..页岩气储层类型和特征研究——以四川盆地及其周缘下古生界为例[J].石油实验地质,2011,33(3):219-225,232,8.基金项目
国家自然科学基金项目(40672087)和国家专项《全国油气资源战略选区调查与评价》中国重点地区页岩气资源潜力及有利区带优选项目(2009GYXQ-15)共同资助. （40672087）
