石油实验地质2012，Vol.34Issue(6)：599-603,5.
鄂尔多斯盆地延长组长7致密储层流体包裹体特征与成藏期次
Hydrocarbon accumulation dating by fluid inclusion characteristics in Chang7 tight sandstone reservoirs of Yanchang Formation in Ordos Basin
摘要
Abstract
There are various fluid inclusions in the Chang7 reservoir of the Yanchang Formation in the Ordos Basin. According to the diagenetic stages and homogenization temperatures of host minerals for fluid inclusions, two different phases of hydrocarbon inclusions have been identified. The hydrocarbon inclusions of the first phase locate in the interiors and fissures of quartz overgrowth area and the homogenization temperature of brine inclusions is from 120 ℃ to 140 ℃. The hydrocarbon inclusions of the second phase locate in the late fissures which cut across quartz and (or) feldspars and the homogenization temperature of brine inclusions is mainly from 90 ℃ to 110 ℃. Combined with the thermal and burial histories of the Chang7 Formation, the tight reservoirs has experienced two stages of fluid filling. The main accumulation took place during the late period of Early Cretaceous.关键词
流体包裹体/均一温度/成藏期次/长7储层/鄂尔多斯盆地Key words
fluid inclusion/ homogenization temperature/ hydrocarbon accumulation dating/ Chang 7 reservoir/Ordos Basin分类
能源科技引用本文复制引用
时保宏,张艳,张雷,杨亚娟,李慧..鄂尔多斯盆地延长组长7致密储层流体包裹体特征与成藏期次[J].石油实验地质,2012,34(6):599-603,5.基金项目
陕西省教育厅项目(11JK0735)资助. （11JK0735）
