...田水；聚气成藏； 评价预测；上三叠统； 川西 坳陷 [gap=1148]Key words：gas-field water；gas accumulation and preservation；gvaluation and prediction；the upper triassic；the western sichuan depression ..
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塔里木盆地形成演化的多旋回性决定了油气成藏的旋回性，成藏旋回反映了油气运聚演化史。
Geological evolution determined the cycle of hydrocarbon generation, and the reservoir formation cycles reflect the history of petroleum migration and accumulation in the Tarim Basin.
岩性油气藏成藏机理是石油地质学研究的重要课题，迄今为止，油气成藏动力机制、运聚机理等问题一直没有完全解决。
As a major topic in petroleum geology, the mechanism of hydrocarbon migration and accumulation for lithologic reservoir has not been completely understood.
判识混源油并确定来自不同油源的原油贡献比例，是油源对比及油气运聚研究的重要内容之一，也是划分含油气系统或油气成藏体系的重要依据。
The identification of mixed crude oils and the calculation of the relative different source proportions are important for studies of crude oil correlation, migration and accumulation.
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