摘要
裂缝作为碳酸盐岩油气藏的主要连通通道,也可以作为有效的储集空间;但裂缝发育情况复杂,具有很强的非均质性,准确地描述储层中裂缝的分布,直接关系到油藏的开发效果。针对塔河油田6-7区奥陶系碳酸盐岩储层裂缝空间分布特征和展布规律十分复杂的特点,综合地质、钻井、测井、地震等多方面资料,在岩心观察描述、成像测井分析的基础上,从地质成因出发,以地质力学为理论指导,建立了研究区离散裂缝网络模型。建模结果显示,裂缝的平面及纵向展布规律与地质认识相符,实现了从断裂刻画到裂缝预测的重要突破。
Fractures not only can be used as the main connecting tunnel of carbonate reservoir, also can be used as effective reservoir space. Due to complex development condition and strongly heterogeneity of cracks, accurate description of the distribution of fractures in reservoir will be directly related to the reservoir development effect. Because the fractures in Ordovician carbonate reservoirs of 6-7 area of Tahe oil field have complex spatial distribution characteristic and distribution rule. Based on observation and description of the core and imaging logging analysis, starting from the geological genesis and taking the geologicalSmechanicsStheory as guidance, a discrete fracture network model of research area was established for the small scale fractures. As the result of modeling, the horizontal and vertical distribution rule of fractures is consistent with geological cognition. This result achieves major breakthroughs from characterization to fracture prediction.
出处
《科学技术与工程》
北大核心
2015年第18期34-39,55,共7页
Science Technology and Engineering
基金
国家重点基础研究发展计划(973计划)(2012CB214803)
中国石油研究基金(2011D-5006-0105)
"十二五"国家科技重大专项"高含硫气藏安全高效开发技术(2011ZX05017-001)"
"十二五"国家科技重大专项"大型油气田及煤层气开发(2011ZX05049)"共同资助
关键词
裂缝建模
裂缝表征
碳酸盐岩
塔河油田6-7区
fracture modeling fracture characterization carbonate 6-7th blocks of Tahe oil field
