中国海相克拉通盆地古隆起的活动性与油气分布

发布时间：2018-03-10 11:16

本文选题：克拉通盆地　切入点：古隆起　出处：《地质学报》2017年07期 　论文类型：期刊论文

【摘要】：中国海相克拉通盆地具有时代老、规模小、多期活动、稳定性差的特点,因此海相盆地古隆起的规模相对较小,而且活动性较强,本文根据古隆起的地质结构和构造活动性,将其分为稳定型、反转型、迁移型、沉没型和肢解型5种类型,并结合最新的勘探进展对各类古隆起的控油气作用进行了剖析,研究表明:稳定型古隆起的油气主要富集在隆起的核部与斜坡部位,反转型古隆起油气主要富集在斜坡和枢纽带,迁移型古隆起主要富集在斜坡部位,沉没型和肢解型控油气作用较弱;随着油气勘探向深层拓展,油气"近源、优储"的成藏特征更为明显,古隆起斜坡部位邻近烃源岩的短期暴露溶蚀储层和多期断裂发育带是油气新发现的重要地区,古隆起与古老拉张槽叠加部位,具有优越的成藏匹配关系,成为深层油气勘探的新热点;塔里木盆地塔中-塔北古隆起下斜坡部位的阿满过渡带、鄂尔多斯盆地中央古隆起深层元古宙拉张槽两侧、四川盆地川中古隆起深层震旦纪—寒武纪拉张槽两侧等地区是海相深层大型—超大型油气田富集的有利地区。
[Abstract]:The marine craton basin in China has the characteristics of old age, small scale, multi-period activity and poor stability. Therefore, the paleouplift of the marine basin is relatively small in scale and strong in activity. In this paper, according to the geological structure and tectonic activity of the paleouplift, It can be divided into five types: stable type, anti-transformation type, migration type, sunk type and dismemberment type. Combined with the latest exploration progress, the oil and gas control effects of various paleouplift are analyzed. The results show that the oil and gas of the stable paleouplift are mainly concentrated in the core and slope of the uplift, the oil and gas of the anti-transition paleouplift are mainly concentrated in the slope and the hinge zone, and the migration paleouplift is mainly concentrated in the slope. The submersible type and the dismembered type have weak controlling effect on oil and gas, and with the extension of oil and gas exploration to the deep layer, the characteristics of oil and gas "near source, superior reservoir" are more obvious. Short-term exposed dissolution reservoir and multi-stage fault development zone adjacent to source rock in the slope of paleouplift are important areas for new discovery of oil and gas. The paleouplift and the superposition of ancient extensional trough have superior reservoir forming matching relationship. It has become a new hot spot in deep oil and gas exploration, the transition zone of Aman in the lower slope of Tazhong and Tabei uplift in Tarim Basin, the two sides of deep Proterozoic extensional trough in central paleouplift of Ordos Basin, The deep Sinian to Cambrian extensional trough and other areas in the middle paleozoic uplift of Sichuan basin are favorable areas for the enrichment of marine deep large and super large oil and gas fields.
【作者单位】：中国石化石油勘探开发研究院;页岩油气富集机理与有效开发国家重点实验室;中国石油大学(北京)地球科学学院;
【基金】：国家科技重大专项(编号2016ZX05005-001) 国家重点基础研究发展计划(编号2012CB412800) 国家自然科学基金项目(编号40739904)联合资助成果
【分类号】：P542;P618.13

【相似文献】