基于常规测井信息的页岩气评价技术综述

The evaluating technique of shale gas based on the conventional logging data

在大量调研分析基础上,梳理了页岩气概念、总结归纳了页岩气的成藏特征和影响因素,通过对页岩气的岩性特征、物性特征及含气特征综合分析,提出了适于页岩气评价的常规测井系列,研究了页岩气的岩性、物性和含气性测井评价方法;通过对页岩气主要地质评价指标的分析,建立了页岩气的常规测井评价技术体系。通过四性关系研究,建立页岩气主要地质评价指标的测井解释模型,从而实现页岩气的定性和定量评价;将测井新技术和现代数学方法引入到页岩气测井评价中、结合二维及三维精细地震勘探解释新技术对于提高页岩气评价效果意义重大。

Based on investigation and analysis, the paper introduced the concept of shale gas and summarized the accumulation features and influence factors of shale gas. By the analysis of lithologie features, physical property and gas-bearing characteristics of shale gas, the conventional well logging series was proposed and the well logging evaluating methods were researched. The evaluating technique system was built through the analysis of main geology evaluating indexes of shale gas. The paper built the logging interpretation model and achieved qualitative and quantitative evaluation of shale gas. It has great significance to improve evaluation effect of shale gas that applying the new logging technique and modem mathematics to the evaluation of shale gas.