新疆石油地质 ›› 2008, Vol. 29 ›› Issue (6): 699-702.

• 油气勘探 • 上一篇    下一篇

周口坳陷石炭-二叠纪残留盆地煤成油气勘探前景

刘志武1, 周立发2, 何明喜3   

  1. 1.长安大学地球科学与国土资源学院,西安710054;
    2.西北大学地质学系,西安710069;
    3.中国石油河南油田勘探开发研究院,河南南阳473123
  • 收稿日期:2008-01-23 发布日期:2020-11-20
  • 作者简介:刘志武(1973-),男,陕西西安人,讲师,博士,石油地质,(Tel)13201566034(E-mail)zhiwu73@126.com.
  • 基金资助:
    中国石化集团公司科技项目,东秦岭-大别山北缘盆地演化与含油气远景评价(P02004)资助

Prospects for Coal-Formed Oil and Gas Exploration of Carboniferous-Permian Residual Basins in Zhoukou Depression

LIU Zhi-wu1, ZHOU Li-fa2, HE Ming-xi3   

  1. 1. School of Earth Sciences and Resources Management, Chang'an University, Xi'an, Shaanxi 710054, China;
    2. Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China;
    3. Research Institute of Exploration and Development, Henan Oilfield, Nanyang, Henan 473123, China
  • Received:2008-01-23 Published:2020-11-20

摘要: 从烃源岩资源潜力及其油气成藏控制因素等方面入手,全面探讨了周口坳陷石炭-二叠系的煤成烃勘探前景。研究表明,煤系是石炭-二叠纪残存盆地中最主要的烃源岩,其厚度大,类型较好,生烃潜力大,存在多期生烃过程,其中,印支和喜马拉雅运动期是最重要的埋藏生烃期;圈闭类型主要包括沉积圈闭和断褶构造圈闭两类,圈闭形成期与油气运聚期配置较好;油气成藏控制因素主要包括有效烃源岩分布、输导体系的输导能力、构造定型期与油气运聚期的有效配置和古近纪构造格局等;可能存在自生自储、下生上储和古潜山型3 种油气聚集类型。

关键词: 周口坳陷, 石炭系, 二叠系, 煤成油, 勘探

Abstract: This paper completely studies the prospects and directions for coal-formed hydrocarbons exploration of the Carboniferous- Permian in Zhoukou depression in the south of the North China basin. This study indicates that the coal measures are the most important source rocks within residual basins of the Carboniferous-Permian, with big thickness, good types and large potentials of hydrocarbon generation as well as multi-stage hydrocarbon-generation processes in which Indo-Chinese epoch and Himalayan epoch are the major periods of hydrocarbon generation. The trap types occur in form of sedimentary trap and fault-fold structural trap, and in good assemblage with hydrocarbon migration and accumulation. The control factors for hydrocarbon accumulation include effective source rock distribution, transporting system capability, effective assemblage between structure-shaping stage and hydrocarbon migration-accumulation stage and Paleogene structural framework. Also, it is recognized that the hydrocarbon accumulation type in this residual basin could probably be divided into self-generation and self-accumulation one, lower-generation and upper-accumulation one and buried hill one.

Key words: Zhoukou depression, Permo-Carboniferous, coal-formed oil, exploration

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