鄂尔多斯盆地大牛地气田储集层物源分析  

Analysis of Sedimentary Source of Reservoir in Daniudi Gas Field in Ordos Basin

作　　者：谭晨曦[1] 李文厚[1] 冯娟萍[2] 曾明[3] 卜颖 

机构地区：[1]大陆动力学国家重点实验室西北大学地质系,陕西西安710069 [2]西安科技大学,陕西西安710054 [3]长庆油田公司第二采油厂,甘肃庆阳745100 [4]有色金属华东地质勘查局,江苏南京210007

出　　处：《矿物学报》2010年第3期389-397,共9页Acta Mineralogica Sinica

基　　金：国家973项目(编号:2003CB214602)

摘　　要：晚古生代太原组-下石盒子组地层是鄂尔多斯盆地大牛地气田重要的储集层位,依据大量分析测试数据,从砂岩碎屑矿物成分、轻重矿物组合、石英阴极发光、REE地球化学以及沉积相和岩相古地理等方面对该地区太原组-下石盒子组的物源进行了综合研究。结果表明,大牛地气田储集层物源区主要为具活动性特征的再旋回造山物源区,物源方向较为稳定,明显受到北部物源的控制,其母岩应来源于盆地北部阴山古陆前寒武系古老的变质岩岩系。The Neopaleozoic Taiyuan-Xiashihezi Formation is a principal reservoir in Daniudi gas field,of which the confirmation of the sedimentary source is significant for the energy sources exploration.We studied the sedimentary source direction based on abundant data including mineralogical composition of sandstone,the group features of light and heavy minerals,genetic types of quartz cathodeluminescence,REE analysis,sedimentary facies and lithofacies paleographic maps.The results revealed that the provenance of Daniudi gas field was attributed to active recycled-orogenic provenance,from which the direction of sedimentary source was stable and controlled by the north provenance,and the mother rock was derived from metamorphic rock of Precambrian succession in the ancient land of Yin Mount in the north of the Ordos Basin.

关 键 词：大牛地气田 储集层 晚古生代太原组-下石盒子组 物源分析 鄂尔多斯盆地 

分 类 号：P512.2[天文地球—地质学] P534.45