油气地球化学勘探在大宛齐油田滚动开发中的应用

APPLICATION OF GEOCHEMICAL EXPLORATION IN THE ON-GOING DEVELOPMENT OF DAWANQI OIL FIELD, XINJIANG, CHINA

通过高密度采样,将土壤游离烃直接检测技术和土壤吸附烃热释偏提取技术相结合的地表化探新方法、新技术应用于大宛齐浅层油气田的滚动开发中,并运用现代石油地质理论——成油体系分析,再结合地震构造资料,对该油田进行了综合油气预测,结果使钻井成功率大幅度提高,油田产量迅速上升,说明了地表化探技术在浅层油气田勘探方面有良好的应用前景。

IN a recent on-going development project carried out in Dawanqi shallow oil field, geochemical exploration has been applied, which involves in situ determination of free light hydrocarbons (C_1-C_5)in soil air and absorbed hydrocarbons in soil samples by means of a thermal release procedure.Due to a high sampling density and a reasonable interpretation of the geochemical data, as good as 94.5% of drilling succeed rate was achieved which leads to a considerable increase of oil out put. It is shown that geochemical methods are highly applicable in the on-going development for shallow oil fields.