水平井常规测井资料解释方法研究

Study of the Conventional Logging Interpretation Methods for Horizontal Wells

水平井测井由于环境的不同导致测井响应特征与直井存在较大的区别,因此水平井常规测井资料解释面临着很多问题。本文从机理出发,研究确定了比较实用的测井资料解释评价方法。利用三角函数法确定地层界面,应用邻井约束和直方图技术根据井眼条件的不同选取计算储层物性参数曲线,结合区域油藏特征和井眼轨迹分析储层流体性质。通过研究确定的常规测井解释评价方法在海外某油田取得了较好的应用效果,具备一定的推广应用价值。

Due to different well logging circumstances, the logging responses characteristics of horizontal wells are different from that of vertical wells. Thus there are many problems in horizontal well logging interpretation. A more practical logging interpretation method is studied based on the theories in this paper. The trigonometric function is used to determine the layer interface. Depending on the borehole conditions, the exact curves are chosen to compute the reservoir porosity by the application of adjacent well constraints and histogram technology. the reservoir fluid properties can be analyzed with combination of regional reservoir characteristics and well trajectory. It got good result in an overseas oilfield. It has popularization and application value.