北乌斯丘尔特盆地含油气系统及勘探前景分析

发布时间：2018-02-16 05:44

本文关键词： 北乌斯丘尔特盆地含油气系统烃源岩成藏勘探前景　出处：《特种油气藏》2017年03期 　论文类型：期刊论文

【摘要】：应用含油气系统理论,以生烃灶质量与生烃有效性为主要依据,结合储集层、盖层、圈闭、成藏历史及构造格局,将北乌斯丘尔特盆地划分为3个含油气系统。对各含油气系统的静态地质要素和动态地质作用过程开展研究及评价,分析了油气勘探前景并指出重点的攻关方向。结果表明:中侏罗统—中侏罗统、下白垩统(已知的)+始新统(推测的)含油气系统规模大,成藏组合关系相对优越,勘探潜力最大,勘探重点是寻找良好的储集体及对圈闭形成时期与生排烃期匹配的评价;另2个含油气系统的勘探程度较低,烃源岩仍是油气成藏的制约因素,上古生界—石炭系(已知的)含油气系统勘探程度最低,是远景勘探领域。研究成果对于明确盆地的重点勘探领域以及寻找勘探目标具有重要指导意义。
[Abstract]:Based on the theory of oil-gas system and the quality of hydrocarbon generating stoves and hydrocarbon generation efficiency, combined with reservoir, caprock, trap, accumulation history and structural pattern, the oil and gas system theory is applied. The North Usshurt Basin is divided into three oil and gas bearing systems. The static geological elements and dynamic geological processes of each oil and gas bearing system are studied and evaluated. The prospect of oil and gas exploration is analyzed and the key points are pointed out. The results show that the Middle Jurassic-Middle Jurassic, the Lower Cretaceous (known) Eocene oil and gas bearing system are large in scale, and the relationship between hydrocarbon accumulation and assemblage is relatively superior. The exploration potential is the greatest, the exploration focus is to find a good reservoir and to evaluate the match between trap formation and hydrocarbon generation and expulsion, and the other two oil-bearing systems are of low exploration degree and hydrocarbon source rocks are still the limiting factors for hydrocarbon accumulation. The exploration degree of the Upper Paleozoic Carboniferous system is the lowest and it is a prospective exploration field. The research results have important guiding significance for defining the important exploration areas of the basin and finding the exploration targets.
【作者单位】：中国石油大庆油田有限责任公司;中国石油大学(华东);
【基金】：国家科技重大专项“资源评价参数选取及天然气资源评价(2011ZX05007-001) 中国石油科技重大专项“全球剩余油气资源研究及油气资产快速评价技术”(2011ZX05028)
【分类号】：P618.13

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