摘要
本文首次运用轻烃稳态催化理论和C_7轻烃相对组成系统研究了塔里木盆地原油的成因类型。结果表明,塔里木迄今发现的原油按成因可划分为海相油、湖相油、混源油和煤成油。其中,海相油代表塔里木的主要原油,集中分布在轮南、东河塘和塔中等地区;而湖相油、混源油和煤成油则主要产自轮台断隆带和库车坳陷等地区。不同类型原油中,Imcc6变化悬珠,由海相油的小于35%±2到煤成油大于65%±2,它们之间有一个渐进变化的过程。
Based on the steady-state catalytic theory and relative composition of the C_7 hydrocarbon system,genetic types of crude oils in the Tarim basin have systematically been studied.According to the genetic types,the paper suggests that crude oils in the Tarim basin fall into four kinds: marine oil,lacustrine oil,mixed oil and coal-related oil,of which marine oil represents the majority of found in the area and is mainly distributed in Lunnan,Donghejang,Tazhong and other oilfields. Continental oils and coal-related oils mainly occur in the Luntai fault uplift and Kuche depression. The values of Imcc6 vary greatly in different genetic types of oils,from less 35%±2 for marine oils to more than 65 % ± 2 for coal-related oils.These Imcc6 values show a process of progressive variation from marine oils to coal-related oils.
出处
《地质论评》
CAS
CSCD
北大核心
1996年第S1期26-30,共5页
Geological Review
关键词
轻烃组成
成因类型
原油
塔里木盆地
light hydrocarbon cmposition
genetic type
crude oil
Tarim basin
