致密低渗透储层裂缝研究进展

发布时间：2018-03-25 10:56

本文选题：天然裂缝　切入点：控制因素　出处：《地质科技情报》2016年04期

【摘要】：我国致密低渗透储层的油气资源量巨大,但储层基质物性差,非均质性强,天然裂缝发育,勘探与开发难度大。天然裂缝是致密低渗透储层的有效储集空间和主要渗流通道,控制了这类油气藏的成藏、单井产能及开发效果,天然裂缝分布规律研究对致密低渗透油气藏的勘探和开发至关重要。在阅读国内外大量文献的基础上,系统地综述了致密低渗透储层裂缝研究中涉及的储层裂缝成因类型、控制因素、储层裂缝参数表征方法、裂缝有效性影响因素与评价方法、天然裂缝与人工裂缝的耦合关系等研究现状,探讨了现阶段储层裂缝研究中存在的问题及进一步需要开展的工作。非常规储层裂缝的形成机理与主控因素、多学科相结合的高精度裂缝井间预测及裂缝三维地质建模、裂缝的分级评价及有效性评价将是近期裂缝研究的重点。
[Abstract]:The oil and gas resources of dense and low permeability reservoirs in China are huge, but the reservoir matrix is poor, the heterogeneity is strong, the natural fractures are developed, it is difficult to explore and develop. The natural fractures are the effective reservoir space and the main percolation channel of dense low permeability reservoirs. The study on the distribution of natural fractures is very important to the exploration and development of dense and low permeability reservoirs, based on the reading of a large number of literatures at home and abroad, the reservoir formation, single well productivity and development effect of this kind of reservoirs are controlled, and the distribution of natural fractures is very important to the exploration and development of these reservoirs. In this paper, the formation types, controlling factors, characterizing methods of reservoir fracture parameters, influencing factors and evaluating methods of fracture validity in tight and low permeability reservoirs are systematically summarized. The coupling relationship between natural and artificial fractures, and so on, are discussed in this paper. The existing problems and further work in the study of reservoir fractures are discussed. The formation mechanism and main controlling factors of unconventional reservoir fractures are discussed. The high precision interwell prediction of fractures and the 3D geological modeling of fractures, the classification evaluation of fractures and the evaluation of their effectiveness will be the focus of the research on fractures in the near future.
【作者单位】：中国石油大学(北京)地球科学学院;中石油华北油田分公司;
【基金】：国家自然科学基金项目(41272164)
【分类号】：P618.13

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