岩性油气藏 ›› 2019, Vol. 31 ›› Issue (4): 1–12.doi: 10.12108/yxyqc.20190401

• 论坛与综述 •    下一篇

“非常规油气缝-孔耦合富烃假说”概述

罗群, 王井伶, 罗家国, 吴安彬   

  1. 中国石油大学(北京)非常规油气科学技术研究院, 北京 102249
  • 收稿日期:2019-03-15 修回日期:2019-04-10 出版日期:2019-07-21 发布日期:2019-06-21
  • 第一作者:罗群(1963-),男,博士,教授,主要从事非常规油气成藏与地质评价方面的研究工作。地址:(102249)北京市昌平区府学路18号中国石油大学(北京)非常规油气科学技术研究院。Email:luoqun2002@263.net。
  • 基金资助:
    国家自然科学基金"致密油储层层理缝启闭与石油充注"（编号：41672118）、国家973项目"陆相致密油甜点成因机制及精细表征"（编号：2015CB250901）和国家科技重大专项35课题2"五峰-龙马溪组富有机质页岩储层精细描述与页岩气成藏机理"（编号：2017ZX05035-002）联合资助

Hypothesis outline of fracture-pore coupling enriching hydrocarbon on unconventional oil and gas

LUO Qun, WANG Jingling, LUO Jiaguo, WU Anbin   

  1. The Unconventional Oil and Gas Institute, Chinese University of Petroleum(Beijing), Beijing 102249, China
  • Received:2019-03-15 Revised:2019-04-10 Online:2019-07-21 Published:2019-06-21

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摘要： 针对非常规油气富集的关键控制因素不清，富集机制与富集效率不明等科学问题，采用广泛调研、野外观察、岩心描述、镜下鉴定、模拟实验、统计分析等手段和途径，结合科研实践，提出了缝-孔耦合是制约非常规油气滞留、运移、聚集、富集关键控制因素，即"缝-孔耦合富烃假说"。主要结论包括：①缝-孔耦合不仅控制了非常规油气运聚、富集与成藏的动力与阻力、还控制了运移的通道和聚集的空间，而且也制约着非常规油气运聚、富集与成藏的相态、方式、流体流动规律和运聚富集的效率。②总结出16种缝-孔耦合类型，划分优势耦合、良好耦合、一般耦合和不利耦合等4个评价级别的缝-孔耦合，其中优势耦合的缝-孔系统最有利于非常规油气的运聚、富集与成藏，其次是良好耦合。③概述了"缝-孔耦合富烃假说"提出的背景、基本原理、主要依据、主要观点以及基于"缝-孔耦合富烃假说"的勘探思路。"缝-孔耦合富烃假说"的系统梳理对非常油气勘探具有指导意义，但还有待于进一步修正、完善和发展，以丰富和发展非常规油气成藏理论。

关键词: 非常规油气, 缝-孔耦合, 优势耦合, 富烃假说

Abstract: There are some problems in unconventional hydrocarbon enrichment research,such as unclear key controlling factors,unclear enrichment mechanism and efficiency. By means of investigation,field observation, core description,microscopic identification,simulation experiment and statistical analysis,combined with its own research outcome,this paper proposed the hypothesis of "fracture-pore coupling enriching hydrocarbon" based on the knowledge of fracture-pore coupling is the key controlling factor restricting unconventional oil and gas retention,migration,accumulation and enrichment. The main conclusions are as follows:(1)Fracture-pore coupling not only controls the dynamic and resistance of unconventional hydrocarbon migration,accumulation and enrichment,but also controls their migration channels and accumulation space,as well as their phase, mode,fluid flow rule and efficiency of migration and accumulation.(2)There are 16 kinds of fracture-pore coupling and four evaluation levels of fracture-pore coupling of advantage coupling,good coupling,general coupling and unfavorable coupling,and fracture-pore system with advantage coupling is most conducive to the migration,accumulation and enrichment of unconventional oil and gas,followed by that with good coupling.(3)This paper summarized the background,basic principle,main basis,main viewpoints of the "fracture-pore coupling enriching hydrocarbon hypothesis", and exploration strategy based on this hypothesis. This hypothesis has important guiding significance for unconventional oil and gas exploration,but it still needs further revision,improvement and development to develop the unconventional oil and gas accumulation theory.

Key words: unconventional oil and gas, fracture-pore coupling, advantage coupling, hypothesis of enriching hydrocarbon

中图分类号: 

  • TE122.2
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