我国南方地区页岩气电磁勘探技术初探
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摘要
页岩气是目前世界上新型战略能源。大量研究表明,我国现有页岩气很大一部分分布在南方碳酸盐岩地区,该地区复杂的地质地表条件使得地震野外施工困难,资料品质普遍不高,地震解释工作具有较大难度。提出了适于复杂地质地区页岩气勘探的电磁方法,对其中音频大地电磁测深和复电阻率法进行了探讨。
The shale gas is a new kind of strategic energy in the world.Improving the speed of exploration and production of such a non-conventional resource has been a global choice of those countries or districts with rich shale gas resources.Previous researches have revealed that China has equivalent amount of shale gas with USA.Many research results in China show that the southern China is one of the potential areas for shale gas exploration.However the complex topography with carbonate covers and sophisticated geological structures in southern China are a main difficulty for seismic exploration to get good data.There are not any successful exploration cases for shale gas by EM method in China.This paper,we presents an idea of combined electromagnetic exploration method which consists of the audio magnetotellurics sounding and complex resistivity method suitable for shale gas exploration in such kind of rugged area.
The shale gas is a new kind of strategic energy in the world.Improving the speed of exploration and production of such a non-conventional resource has been a global choice of those countries or districts with rich shale gas resources.Previous researches have revealed that China has equivalent amount of shale gas with USA.Many research results in China show that the southern China is one of the potential areas for shale gas exploration.However the complex topography with carbonate covers and sophisticated geological structures in southern China are a main difficulty for seismic exploration to get good data.There are not any successful exploration cases for shale gas by EM method in China.This paper,we presents an idea of combined electromagnetic exploration method which consists of the audio magnetotellurics sounding and complex resistivity method suitable for shale gas exploration in such kind of rugged area.
引文
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[11]徐传建,徐自成,杨志成,等.复电阻率法(CR)探测油气藏的应用效果[J].石油地球物理勘探,2004,39(增刊):31-36.
[12]霍进,黄景龙,吴成友,等.复电阻率法在浅层稠油油气检测中的应用[J].特种油气藏,2004,11(3):21-25.
[2]金之钧,张金川.天然气成藏的二元机理模式[J].石油学报,2003,24(4):13-16.
[3]张金川,金之钧,袁明生.页岩气成藏机理和分布[J].天然气工业,2004,24(7):15-18.
[4]李玉喜,聂海宽,龙鹏宇.我国富含有机质泥页岩发育特点与页岩气战略选区[J].天然气工业,2009,29(12):115-118.
[5]李桂范,赵鹏大.地质异常找矿理论在页岩气勘探中的应用[J].天然气工业,2009,29(2):119-124.
[6]Siripunvaraporn W,Egbert G,Lenbur Y,et al.Three-dimensional magnetotelluric inversion:data-space method[J].Physics of theEarth and Planetary Interiors,2005,150:3-14.
[7]严良俊,胡文宝,陈清礼,等,远参考MT法及其在南方强干扰地区的应用[J].江汉石油学院学报,1998,20(4):34-38.
[8]苏朱刘,吴信全,胡文宝,等.复视电阻率法(CR)油气预测中的应用[J].石油地球物理勘探,2005,40(10):467-471.
[9]童茂松,李莉,王伟男,等.泥质砂岩的复电阻率实验研究[J].测井技术,2005,29(3):188-190.
[10]童茂松,李莉,王伟男,等.岩石激发极化弛豫时间谱与孔隙结构、渗透率的关系[J],地球物理学报,2005,48(3):710-716.
[11]徐传建,徐自成,杨志成,等.复电阻率法(CR)探测油气藏的应用效果[J].石油地球物理勘探,2004,39(增刊):31-36.
[12]霍进,黄景龙,吴成友,等.复电阻率法在浅层稠油油气检测中的应用[J].特种油气藏,2004,11(3):21-25.
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