辽河坳陷兴隆台—马圈子潜山带综合地质解释效果分析
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摘要
兴隆台—马圈子潜山带位于辽河坳陷西部凹陷,潜山含油气性复杂,其勘探受到地震深层资料品质的制约。2004年,在该地区部署了重磁电勘探工作,基本落实了中生界地层分布和厚度变化,预测马古2、马古3井太古宇顶面埋深与实钻误差只有十几米。对新钻井的后期追踪证实,重磁电资料地质解释成果与钻井结果基本吻合。由此说明,重磁电震综合勘探能够提高成果的可信性与精确度,可以解决单一地震方法无法解决的复杂地质问题。同时指出勘探方向应指向潜山带的东北—西南延伸方向。
Xinglongtai-Majuanzi buried-hill belt lies in the sag west of Liaohe depression.It features in complex oil-gas properties and the exploration of it is influenced by the quality of deep seismic data.Gravomagnetic and electric exploration was conducted in the area in 2004.The distribution and thickness variation of Mesozoic Formation is identified on the whole.It is predicted that the error between the buried depth of the top surface of Archaeozoic era and the actual drilling result of Magu-2 and Magu-3 wells is only ten meters or more.Post-tracing of newly drilled wells shows that the effect of seismic interpretation of gravomagnetic and electric data is equivalent to the drilling result.Hence the credibility and precision of the drilling result can be improved and the complicated geological problems can be solved on the basis of gravomagnetic and electric exploration.It is indicated that the target for exploration should be focused on NE-SW extension area of the buried-hill belt.
Xinglongtai-Majuanzi buried-hill belt lies in the sag west of Liaohe depression.It features in complex oil-gas properties and the exploration of it is influenced by the quality of deep seismic data.Gravomagnetic and electric exploration was conducted in the area in 2004.The distribution and thickness variation of Mesozoic Formation is identified on the whole.It is predicted that the error between the buried depth of the top surface of Archaeozoic era and the actual drilling result of Magu-2 and Magu-3 wells is only ten meters or more.Post-tracing of newly drilled wells shows that the effect of seismic interpretation of gravomagnetic and electric data is equivalent to the drilling result.Hence the credibility and precision of the drilling result can be improved and the complicated geological problems can be solved on the basis of gravomagnetic and electric exploration.It is indicated that the target for exploration should be focused on NE-SW extension area of the buried-hill belt.
引文
宋景明等,全地球物理信息解释技术在深层潜山勘探中的应用,中国石油学会东部地区第十三次物探技术研讨会论文集,2005,4:319。
[1]廖兴明,姚继峰,于天欣,等.辽河盆地构造演化与油气[M].北京:石油工业出版社,1996
[2]孟卫工,等.辽河断陷深层石油地质综合研究及勘探目标[A].中国东部深层石油勘探论文集[C].北京:石油工业出版社,2001:79～109
[1]廖兴明,姚继峰,于天欣,等.辽河盆地构造演化与油气[M].北京:石油工业出版社,1996
[2]孟卫工,等.辽河断陷深层石油地质综合研究及勘探目标[A].中国东部深层石油勘探论文集[C].北京:石油工业出版社,2001:79～109
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