尼罗河三角洲盆地油气地质特征与勘探方向

    PETROLEUM GEOLOGICAL FEATURES AND EXPLORATION POTENTIAL OF THE NILE DELTA BASIN

    • 摘要: 尼罗河三角洲盆地已经进行了60余年的勘探实践,但是近年来随着勘探研究和钻探活动的继续深入,仍然不断有新的问题产生和新的勘探领域被发掘,显示出新的生命力和良好的勘探前景。尼罗河三角洲盆地虽然是一个世界级的富油气区,然而由于种种原因,中国油公司甚少涉及该盆地的研究,鲜见相关文献发表。通过对尼罗河三角洲盆地构造演化与沉积充填、烃源岩、储层等石油地质条件的研究,分析了尼罗河三角洲盆地的油气成藏特征与勘探潜力,并结合现今勘探现状指出了尼罗河三角洲盆地未来主要勘探领域与勘探方向:浅水区勘探程度较高,生产设施完善,经济门槛低,是实施滚动勘探的最佳区域;中深水—深水区渐新统是今后10年中—大型天然气田发现的主要潜力区;超深水区存在中新统和上新统大型生物气藏勘探潜力。

       

      Abstract: The Nile Delta Basin has been put under exploration for more than 60 years. With the deepening of exploration and drilling activities, new topics and new frontiers are constantly emerging, showing good exploration prospect. Though the Nile Delta Basin is a world class oil and gas rich area, for some reasons, Chinese oil companies have rarely involved in the study of the basin, and rarely published relevant literatures. Through a general review of the characteristics of tectonic evolution and sedimentary filling history, as well as source rocks, reservoirs and other petroleum geological conditions, we analyzed in this paper the hydrocarbon accumulation characteristics and exploration potential of the Nile Delta Basin. Combined with present exploration situation, future exploration potential and exploration direction of the Basin are also discussed. The shallow water area, because of its high exploration degree, well developed infrastructure and low economic threshold, is the best area for rolling exploration. In the medium-deep and deep water area, however, the Oligocene is the main potential play to explore medium and large gas fields for the next decade; and in the ultra-deep water area, Miocene and Pliocene plays possess big potential for large biogenic gas discoveries.

       

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