相关性分析在倾角测井质量评价中的应用

由于地层倾角测井资料受测井仪器、井眼条件和环境等因素影响较大,原始倾角测井资料存在一定的质量问题,使处理结果在某些井段不能反映地层真实情况.提出了相关性分析方法,研制了一套评判地层倾角测井质量优劣的软件;该软件有利于选出质量最优井段,进而准确计算地层的倾角和倾斜方位角,为地层产状、构造的确定提供真实可靠的依据.

Application of Correlation Analysis to Evaluation of Diplog Quality

Diplog measures the azimuths and dips. It is widely used in oilfield to solve many geological problems. As we know, diplog data is greatly influenced by tools, boreholes and environments. The poor raw data quality always causes incorrect evaluation of formations. More attention has been given to it for a long time, however, no good sohware can be used to solve them. This paper presents a correlation analysis method to evaluate the quality and confidence of diplog data. On the basis of this, a data evaluation software was developed on Windows operating system. With the aid of the software, the depth intervals with good quality are picked, and the dips and azimuths of formation in these intervals are calculated, which provides reliable foundation for determination of stratum attitude and geological structure.