渤海S油田测井曲线标准化的趋势面分析法

Trend surface analysis method for logging curve standardization in Bohai S oilfield

渤海S油田开发时期较长,老井和新钻井测井系列不同以及受测井施工过程中环境影响,不同井间测井曲线存在精度不匹配、刻度不统一等问题,需要对井资料进行"标准化"处理。通过分析测井曲线标准化常用的几种方法,认为趋势面法具有更加可视化、可分区块研究特征值,且具有可插值等功能,矿场应用表明,趋势面法可在开发生产阶段用于确定研究区标准层段岩性的特征曲线值,在渤海S油田应用效果较好。

Due to the long development period of Bohai S oilfield,the different logging series between old wells and new wells in recent years,as well as the impact of the environment during logging construction,there are some problems such as precision mismatch and scale inconsistency in different inter well logging curves,so it is necessary to"standardize"the well data.By analyzing several common methods of logging curve standardization,it is considered that the trend surface method has the functions of more visualization,block study of eigenvalues,and interpolation.The field application shows that the trend surface method can be used to determine the characteristic curve value of the lithology of the standard interval in the study area in the development and production stage,and the application effect in Bohai S oilfield is good.