不同沉积类型砂体面积确定方法研究

Research on Area Determination Method for Sand-body with Different Sedimentary Types

在分析了目前不同沉积类型砂体面积计算方法所存在问题的基础上,提出用三角网来确定单井控制面积,继而确定不同沉积类型砂体面积。解决了目前采用的“单井控制面积=区块总面积/区块总井数”算法所产生的“井点相对密集的地方,计算的砂体面积大;井点相对稀疏的地方,计算的砂体面积小”的误差,使不同沉积类型砂体面积计算更加合理、可靠。

Based on the problems of current area calculation methods for sandbody with different sedimentary types, it is supposed to use triangulation net to determine the single well control area, and then to determine the sandstone area with different sedimentary types. At present , the algorithm of ' single well control area = the total area of the block / total well No. in the block' is used. But in the places where the well points are relatively dense, the calculated sandbody area is large, and in the places where the well points are relatively widely located,the calculated result is small. With the application of the discussed method, the error will decrease, and the calculated sandbody area with different sedimentary types is more reliable and reseanable.