地质建模中J-函数对储层结构响应的研究  

Study on Response of J-function to Pore Texture in Geological Modeling

作　　者：刘媛 王秀彦 李建林 唐资昌 杨惠童 李强[1] 

机构地区：[1]中国石油集团东方地球物理公司研究院,河北涿州072751 [2]中国石油大学(北京)地球科学学院,北京102249

出　　处：《测井技术》2017年第4期480-484,共5页Well Logging Technology

摘　　要：通过对非洲Muglad盆地内多个油田的毛细管压力样品分析,发现储层孔隙结构是决定J-函数形态的关键地质因素,在此基础上提出不同储层孔隙结构类型的油藏具有不同的J-函数形态,因此,需要建立相对应的算术表达式对其进行表征,如幂函数、指数函数及分段函数等。合理划分储层类型并分别拟合J-函数表达式,有助于在地质建模中可靠地获取能充分反映油藏地质特征的饱和度模型。Reservoir pore texture seriously affects the patterns of J-function, after analyzing some capillary pressure samples of several fields in Muglad basin in Africa.Various pore textures determine different ＆quot;J＆quot; patterns, and also need more mathematical equations to express, such as power formula, exponential formula or multiple functions.Therefore, the J-function regression equations based on reservoir classification can help to obtain the reliable saturation models, which could reasonably represent the reservoir geological factors.

关 键 词：J-函数 储层孔隙结构 毛细管压力 岩心样品 储层分类 

分 类 号：P631.84[天文地球—地质矿产勘探]