被动大陆边缘盆地油气勘探新进展与展望

发布时间：2018-07-14 13:09

【摘要】：2006年以来被动大陆边缘盆地已成为全球油气储量的主要增长区。通过统计分析被动大陆边缘盆地的勘探趋势,系统总结了被动大陆边缘盆地的地质进展,阐述了主要盆地的油气分布基本特征和勘探潜力,并提出了下阶段被动大陆边缘盆地油气勘探的主要方向。被动大陆边缘盆地油气勘探呈现出由浅水盐上走向深水盐下、由构造走向地层-岩性、由大西洋向印度洋拓展、由常规带走向极地、天然气储量比重日趋增大等5方面趋势,在深水盆地、深水沉积、盐下储层等方面取得的新进展是取得油气突破的重要原因。大西洋沿岸、印度洋西岸被动大陆边缘盆地在一定程度上具有规律性的共轭关系,但其油气富集程度、分布和类型有很大差异,以共轭关系为主线对寻找新的勘探领域提供了新勘探思路。对于未来的被动大陆边缘盆地油气勘探,应重点评价近期获得突破的深水区盆地,并坚持对含盐盆地盐下裂谷期层系进行持续勘探,同时要加强超深水盆地的前瞻性研究。
[Abstract]:Since 2006, passive continental margin basins have become the main growth areas of global oil and gas reserves. Based on the statistical analysis of the exploration trend of passive continental margin basins, the geological progress of passive continental margin basins is systematically summarized, and the basic characteristics of oil and gas distribution and exploration potential of the main basins are expounded. The main direction of oil and gas exploration in the passive continental margin basin in the next stage is put forward. The exploration of oil and gas in passive continental margin basin shows five trends: from shallow water salt to deep water salt, from structure to stratigraphic lithology, from Atlantic to Indian Ocean, from conventional belt to polar region, and the proportion of natural gas reserves is increasing day by day. The new progress in deep water basin, deep water deposit and subsalt reservoir is an important reason for oil and gas breakthrough. The passive continental margin basins along the Atlantic coast and the west coast of the Indian Ocean have a regular conjugate relationship to some extent, but the degree, distribution and type of hydrocarbon enrichment vary greatly. Taking conjugate relation as the main line, it provides a new exploration idea for finding new exploration field. For the future exploration of oil and gas in passive continental margin basins, emphasis should be placed on the evaluation of deep-water basins which have made breakthroughs in recent years, and the continuous exploration of salt bearing basins in the subsalt rift period should be carried out, and the prospective study of ultra-deep water basins should be strengthened.
【作者单位】：同济大学海洋资源研究中心;中国海洋石油总公司;中国海洋石油国际有限公司;中海石油乌干达有限公司;
【分类号】：P618.13

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