摘要
研究出了一套低阻低渗油藏薄油层测井识别技术。借助地面自然伽马测井曲线进行自然伽马曲线正演模型的建立,能够分辨出0.3m厚的砂岩储层;采用频率匹配法对电阻率测井曲线进行提高分辨率处理,基于小波变换对声波时差和自然伽马测井曲线进行提高分辨率处理,有利于薄油层的识别与划分。应用效果证明了上述测井识别方法的有效性。
A set of logging techniques to recognize thin oil layers in a low-resistivity and low-permeability reservoir have been developed. By building a forward model from natural gamma ray logs, the sandstone oil layers thin to 0.3 meter can be identi- fied. The resolution-improvement processings of resistivity logs by a frequency matching method and of interval transit time and natural gamma logs on a basis of wavelet transformation are helpful to identification and division of thin oil layers. The effects of these techniques have been proved by their application.
出处
《中国海上油气》
CAS
北大核心
2009年第5期320-323,共4页
China Offshore Oil and Gas
基金
中国海洋石油总公司2006年综合科研项目"南海西部海域低渗油藏开发技术研究"部分研究成果
关键词
低阻低渗油藏
薄油层
测井识别
正演模型
频率匹配法
low-resistivity and low-permeability oilreservoir
thin oil layer
logging identification
forward model
frequency matching method
