【作者】 宋土顺； 刘立； 王福刚； 曲希玉； 李福来； 王力娟； 于淼；

【Author】 SONG Tu-shun~1,LIU Li~1,Wang Fu-gang~2,Qu Xi-yu~3,Li Fu-lai~3,Wang Li-juan~1, Yu Miao~1 (1 College of Earth Sciences,Jilin University,Changchun Jilin,130061;2 Environmental and Resource Sciences,Jilin University,Changchun Jilin,130061,3 College of Geosciences in China University of Petroleum.Qingdao 266555)

【机构】 吉林大学地球科学学院； 吉林大学环境与资源学院； 中国石油大学地球科学与技术学院；

【摘要】 鄂尔多斯盆地马家滩地区石盒子组是天然气的重点勘探层位,根据薄片鉴定、扫描电镜观察、粘土矿物分析、全岩化学成分分析,对马家滩地区石盒子组的岩石学特征和成岩作用进行了研究,认为石盒子组的储层岩石类型主要为石英砂岩、岩屑石英砂岩,少量的长石岩屑砂岩。储层砂岩的成岩作用类型主要有压实和压溶、石英次生加大、胶结、溶解、裂隙。根据成岩作用的特征,建立了研究区储层砂岩的成岩共生序列:自生伊利石-自生绿泥石-石英次生加大-高岭石-方解石-裂缝。鄂尔多斯盆地作为我国CO₂地下埋藏的潜在目标区,开展CO₂可能埋藏层段的岩石学特征和成岩作用研究,可为CO₂地质储存的数值模拟研究提供岩石学信息。更多还原

【Abstract】 The Shihezi formation is the focus of exploration of natural gas layer in Majiatan region of Ordos Basin,according to the identification sheet,scanning electron microscopy,clay mineral analysis,whole-rock chemical composition analysis,Majiatan region Shihezi formation rock characteristics and diagenesis conducted a study that the stone box set of reservoir rock types are mainly quartz sandstone,lithic quartz sandstone,small amounts of feldspar-lithic sandstone.Mainly type of reservoir sandstone diagenetic are compaction and pressure solution-quartz overgrowth-cementation-dissolution-fracture.According to the characteristics of diagenesis,sandstone reservoir study area to establish a symbiosis of diagenetic sequence: authigenic illite - authigenic chlorite - quartz overgrowth - kaolinite - calcite - cracks.Ordos Basin,China’s CO₂ buried in the ground as a potential target areas,to carry out CO₂ may be buried layer section petrology and diagenesis studies,for the numerical simulation of CO₂ geological storage research petrology information.更多还原