重磁电震联合反演在合肥盆地勘探中的应用
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摘要
在合肥盆地开展了高精度重力、航磁、电法、地震(简称重磁电震)、化探等多种方法勘探的基础上,本文通过对重磁电资料的目标处理,建立起全区地球物理场;应用重磁电震资料联合反演,获得的主要成果有:①完成了印支面及结晶基底构造图;②发现了“影子盆地”;③本区自南而北划分为四个构造带,即前陆冲断带、前渊沉降带、前隆断褶带、隆后斜坡带;④指明前陆冲断带和前隆断褶带是合肥盆地油气勘探突破的有利地区。
On the basis of multiple exploration methods such as high precise gravity survey, aeromagnetic survey,electrical survey and seismic prospecting ( simplified as gravity, magnetic, electric and seismic)developed in Hefei basin,the paper built up the feature of geophysical field in the whole area through object-oriented processing of gravity. mag-netic and electric data; applying joint-inversion of above-mentioned geophysical data resulted in fol-lowing results: (1) finished the structural maps of Indosinian interface and crystal basement; (2) dis-covered "shadow basin ";(3)divided the region into four structural belts from south to north; foreland thrust belt, foredeep depressed belt, fore-bulge fault-folding belt and back-bulge slope belt; (4) pointed out the foreland thrust belt and fore-bulge fault-folding belt are prospective areas that can make oil-gas exploration breakthrough in Hefei basin.
On the basis of multiple exploration methods such as high precise gravity survey, aeromagnetic survey,electrical survey and seismic prospecting ( simplified as gravity, magnetic, electric and seismic)developed in Hefei basin,the paper built up the feature of geophysical field in the whole area through object-oriented processing of gravity. mag-netic and electric data; applying joint-inversion of above-mentioned geophysical data resulted in fol-lowing results: (1) finished the structural maps of Indosinian interface and crystal basement; (2) dis-covered "shadow basin ";(3)divided the region into four structural belts from south to north; foreland thrust belt, foredeep depressed belt, fore-bulge fault-folding belt and back-bulge slope belt; (4) pointed out the foreland thrust belt and fore-bulge fault-folding belt are prospective areas that can make oil-gas exploration breakthrough in Hefei basin.
引文
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[2] 徐嘉伟.郯城-庐江平移断裂带系统,构造地质论丛3． 北京:地质出版社,1984
[3] 张用夏,李卢玲.郯庐断裂带的平移及对邻区构造的影响,构造地质论丛3． 北京:地质出版社,1984
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[5] 贾红义,刘国宏,张云银等.合肥盆地形成机制与油气勘探前景.安徽地质,2001,11(1) :9～18
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[8] 高长林,叶德燎,钱一雄.前陆盆地的类型及油气远景.石油实验地质,2000,22(2)
[9] 朱夏.论中国含油气盆地构造.北京:石油工业出版社,1986
[10] 周进高,赵宗举.合肥盆地构造演化及含油气性分析.地质学报,1999,73(1) :15～24
[11] 刘德良,沈修志,李秀新等.合肥盆地深部推覆-伸展构造及含油气控制分析.南京大学学报(地球科学版),1993,5(2) :208～215
[12] 赵宗举,杨树锋,陈汉林等.合肥盆地基底构造属性.地质科学,2000,35(3) :288～296
[13] R E谢里夫,L P吉尔达特.勘探地震学.北京:石油工业出版社,1999
[14] 刘光鼎,肖一鸣.油气沉积盆地的综合地球物理研究--石油物探资料的处理与解释.湖北武汉:武汉地质学院出版社,1987
[15] Nettleton L L. Gravity and magnetics in oil prospect-ing. McGraw-Hill ,New York, 1976
[16] 阎汉杰,董涛.高次重力差值趋势面分析系统.第三十届世界地质大会,1998,25
[17] Spector A and Grant F S. Statistical models for inter-preting aeromagnetic data. Geophysics, 1970,35, 293-302
[2] 徐嘉伟.郯城-庐江平移断裂带系统,构造地质论丛3． 北京:地质出版社,1984
[3] 张用夏,李卢玲.郯庐断裂带的平移及对邻区构造的影响,构造地质论丛3． 北京:地质出版社,1984
[4] 贾红义,刘国宏,张云银等,合肥盆地构造特征及勘探前景.李丕龙主编,压扭性盆地勘探理论及方法文集,北京:石油工业出版社,152～155
[5] 贾红义,刘国宏,张云银等.合肥盆地形成机制与油气勘探前景.安徽地质,2001,11(1) :9～18
[6] 朱夏,徐旺.中国中新生代沉积盆地.北京:石油工业出版社,1990
[7] 苏浙皖闽油气区石油地质志编写组.安徽油气区,中国石油地质志,1987(8) :341～464
[8] 高长林,叶德燎,钱一雄.前陆盆地的类型及油气远景.石油实验地质,2000,22(2)
[9] 朱夏.论中国含油气盆地构造.北京:石油工业出版社,1986
[10] 周进高,赵宗举.合肥盆地构造演化及含油气性分析.地质学报,1999,73(1) :15～24
[11] 刘德良,沈修志,李秀新等.合肥盆地深部推覆-伸展构造及含油气控制分析.南京大学学报(地球科学版),1993,5(2) :208～215
[12] 赵宗举,杨树锋,陈汉林等.合肥盆地基底构造属性.地质科学,2000,35(3) :288～296
[13] R E谢里夫,L P吉尔达特.勘探地震学.北京:石油工业出版社,1999
[14] 刘光鼎,肖一鸣.油气沉积盆地的综合地球物理研究--石油物探资料的处理与解释.湖北武汉:武汉地质学院出版社,1987
[15] Nettleton L L. Gravity and magnetics in oil prospect-ing. McGraw-Hill ,New York, 1976
[16] 阎汉杰,董涛.高次重力差值趋势面分析系统.第三十届世界地质大会,1998,25
[17] Spector A and Grant F S. Statistical models for inter-preting aeromagnetic data. Geophysics, 1970,35, 293-302
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