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
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摘要
本文在分析钻井、物性资料的基础上,利用高精度重磁力、地震资料,采用重磁力弱信息提取、重力异常剥离、重磁震联合反演解释等技术,实现重磁异常分离、提取并增强了与火山岩有关的重磁异常信息,综合研究了区内营城组火山岩的发育特征。研究结果表明,区内营城组火山岩分布广泛,岩性主要以酸性火山岩为主。火山岩主要沿主控断裂呈带状分布,岩相以爆发相居多,磁异常形态主要呈圆形、椭圆形。
Based on analyzing drilling and physical data,the paper realized separation of gravity and magnetic anomalies,picked up and strengthened the data of gravity and magnetic anomalies relative to volcanic rock and synthetically studied the developing feature of Yingcheng Formation volcanic rock in the area by pickup of weak gravity and magnetic data,stripping of gravity anomaly and joint inversion and interpretation of gravity,magnetic and seismic data.The studied results showed that the distribution of Yingcheng Formation volcanic rock is wide in the area,the lithology is mainly the acid volcanic rock that is strip distribution along the main-controlling faults,the lithologic facies is mostly explosion facies,the pattern of magnetic anomaly is mainly circle.
Based on analyzing drilling and physical data,the paper realized separation of gravity and magnetic anomalies,picked up and strengthened the data of gravity and magnetic anomalies relative to volcanic rock and synthetically studied the developing feature of Yingcheng Formation volcanic rock in the area by pickup of weak gravity and magnetic data,stripping of gravity anomaly and joint inversion and interpretation of gravity,magnetic and seismic data.The studied results showed that the distribution of Yingcheng Formation volcanic rock is wide in the area,the lithology is mainly the acid volcanic rock that is strip distribution along the main-controlling faults,the lithologic facies is mostly explosion facies,the pattern of magnetic anomaly is mainly circle.
引文
[1]张子枢,吴邦辉.国内外火山岩油气藏研究现状及勘探技术调研.天然气勘探与开发,1994,16(1):1～26
[2]冯乔,汤锡元.岩浆活动与油气成藏地质条件的关系.西北地质科学,1997,18(1):56～62
[3]罗静兰,邵红梅,张成立.火山岩油气藏研究方法与勘探技术综述.石油学报,2003,24(1):32～38
[4]唐建人,刘金平,谢春来等.松辽盆地北部徐家围子断陷的火山岩分布及成藏规律.石油地球物理探,2001,36(3):345～351
[5]孙卫斌,刘云祥,李德春等.应用大地电磁资料识别塔中地区火山岩.石油地球物理勘探,2006,41(6):702～705
[6]王家林,王一新,万明浩编著.石油重磁解释.北京:石油工业出版社,1991
[7]蔡先华.松辽盆地南部长岭断陷的火山岩分布及成藏规律.石油地球物理勘探,2002,37(3):291～294
[2]冯乔,汤锡元.岩浆活动与油气成藏地质条件的关系.西北地质科学,1997,18(1):56～62
[3]罗静兰,邵红梅,张成立.火山岩油气藏研究方法与勘探技术综述.石油学报,2003,24(1):32～38
[4]唐建人,刘金平,谢春来等.松辽盆地北部徐家围子断陷的火山岩分布及成藏规律.石油地球物理探,2001,36(3):345～351
[5]孙卫斌,刘云祥,李德春等.应用大地电磁资料识别塔中地区火山岩.石油地球物理勘探,2006,41(6):702～705
[6]王家林,王一新,万明浩编著.石油重磁解释.北京:石油工业出版社,1991
[7]蔡先华.松辽盆地南部长岭断陷的火山岩分布及成藏规律.石油地球物理勘探,2002,37(3):291～294
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