重磁建场法在三塘湖盆地火成岩勘探中的应用
|
摘要
二叠系和石炭系的火山岩是三塘湖盆地重要的含油气层系,分布广泛,由于埋藏深以及侏罗系煤层和条湖组火山岩对深层地层的屏蔽作用,造成地震资料品质差,地震勘探也不能满足研究工作的需要。针对该区存在的勘探难点,提出采用高精度重磁、建场法以及重磁电震联合勘探来解决该区存在的勘探难题,通过重磁建场勘探,对盆地基底断裂、结构有了新的认识,重新划分了火成岩的分布范围,通过钻探证实,吻合性较好,取得了较好的地质效果。
The Permian and Carboniferous igneous rocks are the major petroliferous formations in the Santanghu Basin. They are widely distributed in the basin. Due to their deep burial and the shielding effect of the Jurassic coal beds and the igneous rocks of Tiaohu Formation on deep formations,the quality of seismic data is poor in the basin. Also the seismic exploration cannot meet the requirement of the studied work. The high-accuracy gravity and magnetic field building method and the gravity-magnetic-electronic-seismic exploration method are proposed to tackle the difficulties in exploration in the area. Through gravity and magnetic field building exploration,new cognition to the basement fault and structure of the basin is obtained. The distribution of igneous rocks in the basin is newly divided. Good geological results are acquired through drilling and exploration.
The Permian and Carboniferous igneous rocks are the major petroliferous formations in the Santanghu Basin. They are widely distributed in the basin. Due to their deep burial and the shielding effect of the Jurassic coal beds and the igneous rocks of Tiaohu Formation on deep formations,the quality of seismic data is poor in the basin. Also the seismic exploration cannot meet the requirement of the studied work. The high-accuracy gravity and magnetic field building method and the gravity-magnetic-electronic-seismic exploration method are proposed to tackle the difficulties in exploration in the area. Through gravity and magnetic field building exploration,new cognition to the basement fault and structure of the basin is obtained. The distribution of igneous rocks in the basin is newly divided. Good geological results are acquired through drilling and exploration.
引文
[1]李湘军,毕义泉,秘美鸿,等.滨南油田火成岩油藏勘探技术[J].断块油气田,2002,9(3):5～8.
[2]温声明,王建忠,王贵重,等.塔里木盆地火成岩发育特征对油气藏的影响[J].石油地球物理勘探,2005,40(增刊):33～39.
[3]李玮,周鼎武,柳益群,等.三塘湖盆地二叠纪构造层划分及其构造特点[J].西北大学学报,2005,35(5):617～620.
[4]王玉华,雷茂盛,雷裕红,等.高精度重磁资料在松辽盆地古龙断陷火山岩气藏勘探中的应用[J].石油地球物理勘探,2008,(1):107～114.
[5]陈洁,温宁,陈邦彦,等.重磁电震联合反演研究进展与展望[J].地球物理学进展,2007,(5):1427～1438.
[6]赵淑琴.地震预测技术在辽河断陷盆地东部凹陷火成岩油气藏勘探中的应用[J].特种油气藏,2003,10(3):59～61.
[7]王家林.对我国石油重磁勘探发展的几点思考[J].勘探地球物理进展,2006,(2):82～86.
[2]温声明,王建忠,王贵重,等.塔里木盆地火成岩发育特征对油气藏的影响[J].石油地球物理勘探,2005,40(增刊):33～39.
[3]李玮,周鼎武,柳益群,等.三塘湖盆地二叠纪构造层划分及其构造特点[J].西北大学学报,2005,35(5):617～620.
[4]王玉华,雷茂盛,雷裕红,等.高精度重磁资料在松辽盆地古龙断陷火山岩气藏勘探中的应用[J].石油地球物理勘探,2008,(1):107～114.
[5]陈洁,温宁,陈邦彦,等.重磁电震联合反演研究进展与展望[J].地球物理学进展,2007,(5):1427～1438.
[6]赵淑琴.地震预测技术在辽河断陷盆地东部凹陷火成岩油气藏勘探中的应用[J].特种油气藏,2003,10(3):59～61.
[7]王家林.对我国石油重磁勘探发展的几点思考[J].勘探地球物理进展,2006,(2):82～86.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心