碳氧比测井曲线反褶积高分辨率处理  

DECONVOLUTION HIGH RESOLUTION PROCESSING OF C/O LOG

作　　者：阙源[1,2] 刘宪伟[2] 郑华[2] 

机构地区：[1]中国地质大学地球物理与信息技术学院,北京100083 [2]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163413

出　　处：《大庆石油地质与开发》2009年第1期132-135,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：纵向分辨率低限制了碳氧比测井曲线在解释薄油气层和厚层细分方面的应用，有必要研究碳氧比测井曲线高分辨率处理方法。按照DDCO双源距碳氧比测井仪结构和实际井眼与地层条件建立了仿真模型，用蒙特卡罗数值模拟方法确定了双源距碳氧比测井系统的纵向响应函数。根据理论响应函数，提出了带滤波器的反褶积方法，对碳氧比测井曲线进行了高分辨率处理。处理结果表明，测井曲线纵向分辨率由传统的不优于0.8m提高到了0.6m。该方法能够很好地压制测井噪声，明显提高了碳氧比测井曲线的纵向分辨率。Low vertical resolution of C/O log restricts of thick layers. It is necessary to study high resolution oped according to the structure of DDCO dual-spaced its application in interpretation of thin layers and subdivision processing methods for C/O log. A realistic model is devel- C/O tool and actual conditions of borehole and formation. Vertical response functions of dual-spaced C/O log system are determined by using Monte Carlo numerical simula- tion. A deconvolution method with filters is proposed, and high resolution processing of C/O log is conducted based on theoretical response functions. Processing results indicate that vertical resolution of C/O log is increased from traditional 0.8m to 0.6m. The proposed method can effectively suppress noises and obviously increase vertical resolution of C/O log.

关 键 词：碳氧比测井 纵向分辨率 高分辨率处理 反褶积 开窗 薄油气层 

分 类 号：P631.811[天文地球—地质矿产勘探]