焉耆盆地焉耆隆起区石油地质条件初探

焉耆盆地经历了20多年的勘探开发,取得了一系列认识,但目前急需开辟新的油气勘探领域来缓解增储上产的压力。焉耆隆起区是盆地的油气远景区,通过新焉参1井钻探,初步分析了研究区石油地质条件,明确了其缺失中生界大部分地层,缺乏油源和有效的油气运移通道。讨论后认为应继续探索隆起区油气成藏的可能性,加强焉耆隆起区与博湖坳陷构造演化关系的研究,寻找有效的油气运移通道及隐蔽型油气藏。这些认识对今后焉耆盆地的勘探具有重要意义。

Study on petroleum geological conditions of Yanqi uplift in Yanqi Basin

Yanqi Basin has experienced more than 20 years of exploration and development. However, there is an urgent need to explore new areas of oil and gas to relieve the pressure of increasing reserves and production. Yanqi uplift is the oil and gas prospective area of the basin. Through the drilling of well Xinyancan 1, the authors preliminarily analyzed the oil and gas geological conditions and found out that most of the Mesozoic strata were lost in this area, which means there were no oil sources or effective oil and gas migration channels. Therefore, no oil and gas was shown in the whole well. After discussion, it is considered that the possibility of oil and gas accumulation potential of the uplift area should be explored. The study on the structural evolution relationship between Yanqi uplift and Bohu depression should be strengthened to find effective channels for hydrocarbon migration and subtle reservoir, which would be of great significance to the exploration of Yanqi Basin in the future.