有效储层物性下限方法的研究现状和发展方向

Present Situation and Developmental Trend of the Research on Methodology for Determination of Physical Properties Cut-off of an Effective Reservoir

有效储层物性下限是评价储层储量最有效的方法,目前确定有效储层物性下限值的主要参数为储层的孔隙度、渗透率、含水饱和度参数。因储层物性受多种因素控制,导致不同地区、同一地区的不同时间段其物性下限均不同。目前确定物性下限值的方法包括压汞实验法、分布函数曲线法、核磁共振法、含油产状法等。每种方法均有其利弊,采用综合评价方法是未来确定有效储层物性下限的发展方向。

Physical properties cut off of effective reservoir is of great importance to assessment of reservoir, s reserves. Its main parameters are porosity, permeability and water saturation which are controlled by many factors. There are many kinds of ways to get the values, such as mercury injection experiment, distribution function curve method, nuclear magnetic resonance method, oil occurrence method and so on. Each method has its advantages and disadvantages. The comprehensive methods should be used in the future.