略谈我国无机生油研究现状及方向

Discussion on Status and Direction for Inorganic Theory in China

对目前我国无机生油理论研究中存在的一些问题进行了评述,指出,我国无机生油研究仍处于地质论证阶段。无机生油研究应从陆相生油和源控论理论发展的过程中吸取有益的经验,应先解决烃源岩的生成环境和岩性,进而研究烃类的运移和聚集问题。当然,判识无机油的物理化学特征必不可少。经地质分析发现,渤海湾盆地济阳坳陷中的夏38油田,储油的辉绿岩体可能是烃源岩,辉绿岩体产出的原油可能是无机油;在济阳坳陷及其他坳陷中也有可能寻找到类似夏38的油田;要探讨辉绿岩的生成环境,既要关注地幔柱,也要关注岩浆活动的输导断裂;要特别关注渤海新近系中轻质油的地球化学研究,以寻找无机生油的地球化学证据。

The problems in study of inorganic theory at present are discussed, h is pointed out that the research on inorganic theory is still in stage of geological demonstration, h should deflower from continental oil source theory and source-controlled theory, dealing with the origin environment and lithology of souree rocks and then studying the migration and accumulation of hydrocarbons. Of course, the physicochemical features of inorganic oil source should be distinguished absolutely. The geologic analysis shows that in Xia-38 oilfield of Jiyang depression in Bohai Bay basin, diabase is a possible source rock and crude from it could be inorganic oil, In other depressions near Jiyang depression might find out the similar oilfields to Xia-38, To discuss the origin environment of diabase should not only be paid attention to the mantle plume, but also to the transport faults occurred during magma activation. Also, the geochemistry of light oil of Neogene in Bohai Bay basin is particularly researched in order to attain the geochemical evidences of inorganic sources.