含油气盆地中热流体活动的流体包裹体依据

为寻找含油气盆地中热流体活动的证据，根据国内外含油气盆地中与热流体有关的包裹体的对比研究，阐述了流体包裹体宿主矿物产状、形貌特点及均一温度实测值高异常等特征。研究表明，脉体矿物多数是与热流体活动有关的包裹体的宿主矿物，有些碎屑矿物成岩愈合微裂隙中的包裹体也与热流体活动有关。沸腾包襄体反映了油气成藏与热流体的脉动式活动密切相关。流体包裹体的均一温度高异常是由热流体活动所导致的。因此，流体包裹体研究对识别古热流活动具有重要的指示意义。

Characteristics of fluid inclusions on thermal fluid activity in oil- and gas-bearing basins

Based on the comparing research of thermal fluid activity and studies of fluid inclusion in oil- and gas-bearing basins both at home and abroad, the shape,abnormal high temperature of inclusions and the occurrence of host minerals for these fluid inclusions have been discussed in order to search for evidence of thermal fluid activity. The study indicates that the vein minerals are mostly the host mineral of the fluid inclusions related to the thermal fluid activity. Some inclusions in the healed micro-fracture of clastic minerals are also proven to be associated with the heat fluid activity. Boiling inclusions indicate that the formation of oil and gas reservoirs is closely related to pulsatile activities of hydrothermal fluids. Thermal fluid activity results in higher abnormality of homogenization temperature of fluid inclusions too. Therefore, the research on fluid inclusions are of significance in identifying thermal fluid activity.