基于Delaunay三角网井点面积加权法的油气储量计算  

Calculation of oil and gas reserves base on well-point area weighting method of Delaunay triangulation

作　　者：王荣欣[1] 杨毅恒[1] 王明君[2] 

机构地区：[1]北京信息科技大学理学院,北京100192 [2]中国地质科学院矿产资源研究所,北京100037

出　　处：《世界地质》2009年第4期508-512,共5页World Geology

基　　金：国家高技术研究发展计划(863)项目(2002AA09A202)

摘　　要：提出了一种利用井点面积加权法对油气储量进行计算的方法,该方法利用单井大地坐标构建平面Delaunay三角网,计算各顶点在该三角形中的控制面积,将其累加得到该井点在整个油气区域中的控制面积。利用单井控制面积可以对油气区域进行储量计算,求出整个区域的油层有效厚度、平均孔隙度、平均原始含油饱和度及平均原油体积系数等数据。单井Delaunay三角网格的质量是所有网格中最好的,能最大限度地利用原始井点资料,使得储量计算效果达到最优。A method using well-point area weighting method to calculate oil and gas reserves is presented. This method builds plane Delaunay triangulation using singlewell geodetic coordinate to calculate the controlled area of every point in this triangl and gas field. The reserves e, and adds every controlled area to get the whole controlled area of this well-point in oil of oil and gas field can be calculated by singlewell＇s control area, Which obtains the data of effective thickness, average porosity, average original oil saturation and average oil volume factor. The quality of singlewell Delaunay triangulation is the best among all the network, which can use the primitive data of well-point furthest, and optimize the computational efficiency of reserves.

关 键 词：DELAUNAY三角网 井点面积加权法 油气储量 

分 类 号：P618.13[天文地球—矿床学]