元素录井技术在涪陵页岩气田勘探中的应用  

APPLICATION OF ELEMENT LOGGING TO FULING SHALE-GAS FIELD

作　　者：李昂[1] 袁志华[1] 张玉清[1] 张建平[2] 赵红燕[2] 

机构地区：[1]长江大学 [2]中国石化集团江汉石油工程有限公司

出　　处：《天然气勘探与开发》2015年第2期23-26,3-4,共4页Natural Gas Exploration and Development

基　　金：中国石化石油工程技术服务有限公司科技攻关项目(SG1305)"涪陵地区页岩气试范区石油工程集成技术";中国石化集团公司工程先导项目(SG12068)"页岩油气藏矿物录井定量分析技术"

摘　　要：以X射线衍射仪(XRD)、X射线荧光仪(XRF)为主要设备的元素录井技术是近年发展起来的一项新的录井技术,能够有效解决特殊钻井条件下的细小或粉末状岩屑识别与描述难题。基于涪陵页岩气田元素录井技术应用实践认识,概括介绍了元素录井技术及其资料在海相页岩气储层岩性识别、储层密度与孔隙度计算、可改造性评价方面应用方法。涪陵页岩气田应用结果显示,元素录井岩屑矿物含量测量与实验室岩心分析结果基本一致,计算的视储层岩石密度、总孔隙度与测井、核磁共振录井处理结果基本接近,已成为页岩气井钻探的必要配套技术。Element logging is a new mud-logging technology developed in recent years which mainly uses x-ray diffraction(XRD) and x-ray fluorescence(XRF). It can solve effectively some problems in identifying and describing the fine or powder cuttings under a special drilling condition. Based on its application to Fuling shale-gas field, this paper presents this technology and its application to the lithological identification, calculation of reservoir density and porosity,and stimulation evaluation of marine shale-gas reservoir. Result shows that the measured mineral content of cuttings is basically coincide with the one from lab analysis; the calculated reservoir-rock density and total porosity are approximate to the results from both well logging and NMR mud logging. It has become a necessary matching technology for drilling shale-gas wells.

关 键 词：元素录井 XRD XRF 涪陵页岩气田 勘探 应用 

分 类 号：P618.13[天文地球—矿床学]