CAJ | 학술논문

全面回顾了国内外火成岩油气藏的研究进展.指出,尽管目前已发现的具有商业价值的火成岩油气藏以有机成因为主,但对无机成因油气藏要给予高度重视.详细论述了火成岩油气藏的烃源及无机成因烃的形成机理,阐明地幔射气、晚岩浆期温度500℃以下封闭体系内C-O-H流体重新平衡和岩浆期后阶段矿物与流体的费托合成是无机成因烃的主要来源.我国东部盆地断陷期烃源岩发育良好,区域火山岩地幔包体和火山区温泉气内均含有地幔来源的烃类,碱性和过碱性花岗岩及基性和超基性岩组合具备费托合成烃的条件;表明火成岩油气藏具有巨大的勘探潜力.
전면회고료국내외화성암유기장적연구진전.지출,진관목전이발현적구유상업개치적화성암유기장이유궤성인위주,단대무궤성인유기장요급여고도중시.상세논술료화성암유기장적경원급무궤성인경적형성궤리,천명지만사기、만암장기온도500℃이하봉폐체계내C-O-H류체중신평형화암장기후계단광물여류체적비탁합성시무궤성인경적주요래원.아국동부분지단함기경원암발육량호,구역화산암지만포체화화산구온천기내균함유지만래원적경류,감성화과감성화강암급기성화초기성암조합구비비탁합성경적조건;표명화성암유기장구유거대적감탐잠력.
The study progresses of igneous petroleum reservoirs at home and abroad are reviewed. The results show that the commercial igneous reservoirs are dominated by those with biogenic hydrocarbons, but inorganic petroleum reservoirs should be paid great attention to. The hydrocarbon source and the mechanism of inorganic hydrocarbon generation of igneous reservoirs are discussed. It is illustrated that primary mantle outgassing, the rebalaneing of C-O-H fluid within the closed system in late-magmatic stage of less than 500℃ and the mineral-fluid Fischer-Tropsch (FT) reactions in post-magmatic stage are the main sources of inorganic hydrocarbons. The source rocks in faulted period of basins in eastern China are well developed, with mantle-derived hydrocarbons in regional volcanic mantle inclusions and volcanic spring gas. The combinations of Aikaline-peralkaline granites and basic/uhrabasic igneous rocks are of suitable for FT reactions. These indicate that igneous reservoirs have huge potentials for petroleum exploration.