固定源建场测深在地形复杂区的勘探试验研究

英文篇名：PROSPECTING TEST STUDY ON ELECTROMAGNETIC SOUNDING FOR FIXED EXCITATED SOURCE IN VARIED TOPOGRAPHY AREA
中文刊名：吉林大学学报(地球科学版)
英文刊名：Journal of Changchun University of Science and Technology
作者：李志明 ; 张长江 ; 刘雪军
英文作者：LI Zhi ming 1 ; 2 ; 3 ; ZHANG Chang jiang ; LIU Xue jun 2 (1. Opening Research Lab. of Deposits Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China ; 2. Fifth Division Research Institute ; Bureau of Geophysical Prospecting ; Gucheng 072656
中文关键词：时间域 ; 电磁测深 ; 磁棒 ; 地形复杂区 ; 试验研究
英文关键词：time domain ; electromagnetic sounding ; magnetic stick ; varied topography area ; test study
出版日期：2002-07-30
机构：中国科学院矿床地球化学开放研究实验室,石油地球物理勘探局第五地质调查处研究所,石油地球物理勘探局第五地质调查处研究所贵州贵阳550002,石油地球物理勘探局第五地质调查处研究所,河北固城072656,中国科学院研究生院,北京100039 ,河北固城072656 ,河北固城072656
年：2002
期：03
出版单位：吉林大学学报(地球科学版)

摘要

固定源建场测深是一种时间域电磁测深方法 ,其具资料信噪比高、数据精度高、可避免地表电性不均匀引起的静态位移等优点。但用线圈作为磁探头的传统方法只能适用于地形平坦区 ,在地形复杂的勘探高难地区无法应用。采用磁棒代替线圈作磁探头 ,进行了固定源建场测深在地形复杂区的勘探试验。结果表明 ,改进后的固定源建场测深能适用于地形复杂区的勘探 ,其成果可弥补该类地区地震勘探资料的不足
Electromagnetic sounding of fixed excitated source is a time-domain electromagnetic sounding method, which has many advantages such as high ratio of signal to noise, high precision of data, without static migration. But traditional method used coils as magnetic detector is only applicable to smooth terrain area and can not be applied to varied topography area. This paper expounds the prospecting test study on electromagnetic sounding of fixed excitated source used magnetic stick as magnetic detector in varied topography area. The results of study indicate that this method can be applied to varied topography area when magnetic stick as magnetic detector and its geological results can make up the deficiency of seismic prospecting data.

引文

①　何展翔,米晓利.固定源建场测深及其应用.见:赵化昆主编.非地震物化探技术交流会论文集.北京:中国石油天然气总公司勘探局,1997.8489.
    [1]　姚治龙,王庆乙,胡玉平,等.利用TEM测深校正MT静态偏移的技术问题[J].地震地质,2001,23(2):257263.
    [2]　鲁新便,田春来,李貅.瞬变电磁测深在大地电磁测深曲线静校正中的应用[J].石油物探,1995,34(1):8695.
    [3]　STERNBERGBK ,WASHBURNEJC ,PELLERINL .Correctionforthestaticshiftinmagnetotelluricsusingtransienteletromagneticsoundings[J].Geophy sics,1988,(53):14591468.
    [4]　詹艳,赵国泽,梁竞阁,等.PROTEM -37瞬变电磁测深系统及应用实例[J].地震地质,2001,23(2):264270.
    [5]　张长江,刘学军,何展翔,等.固定源建场测深法准噶尔盆地油气勘探中的应用[J].物探装备,2001,11(3):192194.