| 自生磁铁矿与烃的富集及运移之间相互关系的研究 |
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| 引用本文： | 刘庆生,蔡振京.自生磁铁矿与烃的富集及运移之间相互关系的研究[J].地球科学,1991,16(5):565-571. |
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| 作者姓名： | 刘庆生 蔡振京 |
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| 作者单位： | 中国地质大学物探系，中国地质大学物探系，中国地质大学物探系，地质矿产部航空遥感中心 武汉，武汉，武汉 |
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| 摘 要： |
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| 关 键 词： | 自生磁铁矿 烃 富集 含油气构造 |
A STUDY OF THE RELATIONSHIP BETWEEN THE MAGNETISM OF AUTHIGENIC MAGNETIC MINERALS AND HYDROCARBON MIGRATION |
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| Liu Qingsheng Zhang Changda Qu Zan.A STUDY OF THE RELATIONSHIP BETWEEN THE MAGNETISM OF AUTHIGENIC MAGNETIC MINERALS AND HYDROCARBON MIGRATION[J].Earth Science-Journal of China University of Geosciences,1991,16(5):565-571. |
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| Authors: | Liu Qingsheng Zhang Changda Qu Zan |
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| Abstract: | The producing gas rock and cover strata indicate special magnetic characteristics, and they consist of the ferrimagnetism, paramagnetism and antimagnetism on the basis of measuring compositions and shape of magnetic mineral within cores of two gas-bearing structures and their acidated hydrocarbon content and magnetic parameters from A well-1 and B well-1 in Ordos Basin and comparing with the results of Yueshen well-l of no oil and gas. They are obviously different from magnetic characteristics of no oil and gas structural rocks, and magnetic parameter values (e.g. susceptibility K, saturation magnetization Js, saturation isothermal remanence J ) are closely felated to the degrees of hydrocarbon enrichment and its migration. The spherical magnetic mineral grains within sample 6 from B well-1 are authigenic magnetite which formed under geochemical conditions of hydrocarbon migration. The microtexture of oriented alignment at the spherical magnetite surface is an indicator of bacterical magnetite due to biodegra-tion, but sheet-like magnetic minerals in cores of Yueshen well-1 are industrie irons of well cutting. These results are the basis of formed geomagnetic-geochemical model of hydrocarbon migration in oil and gas field. It is of important significance in the mechanism study of search for oil directly with magnetic method. |
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| Keywords: | authigenic magnetite acidated hydrocarbon hysteresis loop oil and gas-bearing structures Qrdos Basin |
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