AMT法与TEM法在黔南页岩气勘查中的综合应用  

The Comprehensive Application of AMT and TEM to Shale Gas Exploration in South of Guizhou

作　　者：蒙应华 汪玉琼 杨仕欲 

机构地区：[1]贵州省地质调查院,贵州贵阳550018

出　　处：《工程地球物理学报》2015年第5期627-632,共6页Chinese Journal of Engineering Geophysics

基　　金：国土资源部项目(编号:资【2014】03-021-009)

摘　　要：以黔南页岩气代页1井的勘查为例,介绍了AMT法与TEM法的工作原理及方法,并结合地质分析了两种方法的综合应用效果。对两种方法的实测数据进行计算处理后得到的断面电阻率特征显示,AMT法与TEM法电阻率均表现出明显低阻异常,这得到了钻探工程的有效验证,表明利用AMT法探测深部含气低阻层位的大致埋深,TEM法配合查找浅部溶洞、岩溶裂隙来避免漏浆、掉钻等工程风险能取得较好效果,可为今后贵州页岩气综合勘查提供方法借鉴。Taking the exploration of sourthern Guizhou shale gas generation Dai 1 well as an example, this paper introduces the working principle and method of AMT and TEM and analyzes the comprehensive application effect of two methods combining with geology. Through calculating and processing the measured data of two methods, the characteristics of the section resistivity shows obviously low resistivity anomaly for AMT and TEM, which has been verified effectively by drilling engineering. This paper shows it has achieved better results that the AMT detecting the depth of the deep gas bearing in low resistivity layer, and the TEM finding the shallow karst cave and karst crack to avoid leakage slurry and drilling-out, etc. Therefore, this paper provides as a reference for the comprehensive exploration of Guizhou shale gas in the future.

关 键 词：AMT TEM 页岩气 黔南 

分 类 号：P631.3[天文地球—地质矿产勘探]