包裹体信息在川西远源气藏研究中的应用

笔者利用川西远源气藏中流体包裹体形成温度和成分信息等，得出大量对预测气藏有利的地质认识。包体温度表明储层建设性溶蚀作用发生于燕山晚期，气藏中的有利储层分布在燕山晚期构造高部位的有利微相砂体中；断裂、裂缝发育具多期性；气藏中的烃类流体信息反映出川西远源气藏成藏具有多期性。

Applications of inclusion information to the distal gas pools in western Sichuan

Abundant information available for the prediction of gas pools has been obtained in the light of the temperatures and compositions of the fluid inclusions from the distal gas pools in western Sichuan. The data on the temperatures of the inclusions indicate that the constructive corrosion of the reservoir rocks took place during the late Yanshanian. The excellent reservoir rocks in the gas pools are mainly distributed in the favourable microfacies sandstones of the late Yanshanian structural highs. Fractures and fissures are multistaged, and the accumulation of the distal gas pools in western Sichuan is also multistaged, as revealed by the information on hydrocarbon-bearing fluids from these gas pools.