江苏闵桥地区火山岩油藏裂缝闭合条件研究

Study on closing conditions of fractures in volcanic reservoirs of Minqiao area of Jiangsu oilfield

应用岩石力学基本原理,通过分析岩石力学参数、裂缝的几何形态和受力状况,对江苏闵桥地区下第三系火山岩油藏中裂缝的闭合条件进行了研究,建立了裂缝的扁率、倾角与裂缝闭合压力的关系图版。

According to basic theory of rock mechanics, through analyzing parameters of rock mechanics, geometry of fractures, and force-summing state, this paper studies the closing conditions of fractures in volcanic reservoirs of lower Tertiary in Minqiao area, Jiangsu province, and establishes a relation chart of ellipticity, dip angle, and closing pressure of fractures.