侵入岩的分布与赋存规律的综合研究
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摘要
目的揭示巴丹吉林地区M凹陷中生界基底侵入岩的发育、分布及与油气储藏的关系。方法应用磁、重、震综合物探方法确定基底侵入岩的形态与分布,使用改进的马奎特方法解倾斜板状组合模型,进行反演拟合侵入岩体的空间赋存状态和划分侵入岩体的边界线。结果确定了本区的5个侵入岩体,除Ⅳ号岩体侵入围岩推测为奥陶纪地层外,其余岩体侵入于石炭纪地层中。结论有效地确定了基底侵入岩的形成与赋存情况,取得了预期地质效果,对油气勘查与综合评价具有重要意义。
Aim To explore the relationship between development & distribution of Mesozoic intrusive basement of M Sag in Badanjilin Area and oil & gas storage.Methods Comprehensive geophysical vibration is used to detect the distribution of intrusive basement.Results Revised Markovian method is used to solve combined slant plate model, to perform inversion match of spatial intrusion state,and to decide boundary of intrusion, thus concluding five intrusions in this area, and all intrusions are of Carboniferous Formation except No.5 intrusion to be Ordovician.Conclusion The usages of comprehensive magnetic vibration geophysical methods are effective in determining intrusion developing and distribution. Expected geological results have achieved. The work is of great meaning to oil & gas prospecting because oil & gas distribution is related to intrusion.
Aim To explore the relationship between development & distribution of Mesozoic intrusive basement of M Sag in Badanjilin Area and oil & gas storage.Methods Comprehensive geophysical vibration is used to detect the distribution of intrusive basement.Results Revised Markovian method is used to solve combined slant plate model, to perform inversion match of spatial intrusion state,and to decide boundary of intrusion, thus concluding five intrusions in this area, and all intrusions are of Carboniferous Formation except No.5 intrusion to be Ordovician.Conclusion The usages of comprehensive magnetic vibration geophysical methods are effective in determining intrusion developing and distribution. Expected geological results have achieved. The work is of great meaning to oil & gas prospecting because oil & gas distribution is related to intrusion.
引文
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[2] 刘东琴,何展翔.电磁法勘探新技术在油田领域的应用[J].石油地球物理勘探,2001,36(增刊):10-13.
[3] 冀连胜,史付生.重、磁力方法在石油勘探中的应用效果[J].石油地球物理勘探,2001,36(3):326-333.
[4] 宋景明,冉学峰.重、磁、电、地震联合解释技术的应用[J].石油地球物理勘探,2001,36(增刊):5-9.
[5] 王家林,王一新,万明浩.石油重磁解释[M].北京:石油工业出版社,1997.
[6] 张映红,朱筱敏.侵入岩及其外变质带岩相与储集层模型[J].石油勘探与开发,2000,27(2):22-26.
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