塔里木盆地克拉2气藏流体包裹体与油气充注运移期次

FLUID INCLUSIONS AND PHASES OF PETROLEUM INFILLING AND MIGRATION IN KELA-2 GAS POOL, TARIM BASIN

陶士振 秦胜飞

TAO Shi-zhen QIN Sheng-fei

中国石油, 勘探开发研究院, 北京, 100083

Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China

在薄片观察和成岩作用研究的基础上,对我国目前最大的气藏克拉2气藏储层中的流体包裹体进行测试分析,得出了与有机包裹体伴生的盐水溶液包裹体的捕获温度、盐度等参数以及有机包裹体的物理参数和成分数据,从而确定流体包裹体形成的先后序次,用线性回归法计算出上白垩统不同成岩期次的古地温梯度,分析了克拉2气藏油气的充注期次、演化运移特征和资源潜力.

Based on the thin section observasions and diagenetic study,the fluid inclusions from Kela-2 gas pool,the present largest gas reservoir of the country are analysed,resulted in the parameters of trapping temperature and salinity of abiogenic inlusions in salty fluid associated with organic inclusions,and physical parameters and compositional data of organic inclusions,thus the sequential order of fluid inclusion formation can be inferred,and the palaeogeotemperature gradients of different diagenetic phases in upper Cretaceous calculated by a linear regression. Finally the infilling phases,and characteristics of evolution and migration of oil/gas,and resources potential in Kela gas pool are analysed.

塔里木油田分公司塔里木盆地克-依油气评价勘探项目(2098110766).

https://doi.org/10.11781/sysydz200205437