低温热液条件下有机质富集金机理的实验研究

本文在低温(40—200℃)热液条件下,对不同成熟度的有机质与含金溶液[AuCl_4~-,Au(HS)_2~-]之间的相互作用进行了实验研究。研究观察到在低温热液体系中有机质直接参与了从含金溶液中将游离的金离子固定下来的作用。有机质从溶液中富集金可认为有两种不同性质的作用:第一种是在早期沉积成岩作用阶段(T<120°)时,有机质与含金热液主要发生凝聚作用,使溶液中的金由离子状态从无机相转化到有机相中;第二种是在变生或变质作用阶段(T>120℃)时,有机质与含金热液主要发生氧化还原沉淀作用,还原作用的结果导致元素金的沉淀,同时有机质被氧化、分解。     

PRELIMINARY STUDY OF HYDROCARBONS GENERATED FROM FUSHUN COAL RESINITE (Ⅰ)——PRODUCTIVITY AND NATURE OF HYDROCARBONS

Thermal simulation experiments were conducted to understand the productivity of hydrocarbons andtheir nature. It is shown by the experimental results that coal resinite has a high productivity of hydro-carbons and may be a good source rock, resulting in light oils of low maturity in early stage. Naturalgases generated from coal resinite are rich in high molecular weight gas hydrocarbons (C_2~+), up to 19%(V/V). So, if natural gases were generated from coal formation which is rich in resinites, they cannotbe recognized as dry gases as normal. Characteristics of liquid hydrocarbons generated from coal resinitesare: (i) main composition of aromatics in extracts, of which the amount will increase with increasingmaturity; (ii) major compounds of diterpenoids in aliphatics.     

抚顺煤树脂体成烃的初步实验研究——Ⅰ.烃的产率与性质

本文研究了抚顺第三系煤树脂体在人工热模拟条件下的产油、产气能力及所产出的油、气的性质。结果表明:煤树脂体具有很好的产烃能力,是很好的生油母质,可能是形成低成熟轻质原油的重要煤岩成份,煤树脂体生成的气体中乙烷以上重烃的含量很高,最高达19％(体积),因而富含树脂体的含煤地层中产出之煤成气不能一般地认为属于干气的范畴。煤树脂体产出液体烃类的特征是:(1)组成上以芳烃为主,并随成熟度的增高而增加;(2)烷烃以三环二萜类化合物为主。