伊通地堑原油特征与成熟度  

Characteristics and maturity of crude oil in Yitong graben

作　　者：刘鸿友[1] 彭苏萍[1] 魏志平[2] 赵占银[2] 

机构地区：[1]中国矿业大学 [2]中国石油吉林油田勘探开发研究院

出　　处：《石油勘探与开发》2002年第3期21-23,共3页Petroleum Exploration and Development

摘　　要：伊通地堑原油的重要性质是含蜡量高 ,原油碳同位素值主要在 -2 9‰至 -2 6‰之间 ,显示出较重的碳同位素特征 ,因此有的研究者认为存在低熟油。依据最新地化分析资料研究认为 :原油性质与伊通地堑特殊的原油母质有关 ;目前已经发现的原油基本为成熟原油 ,而非低熟油 ,部分为高成熟原油 ;由南部的莫里青断陷到鹿乡断陷 ,再到北部的岔路河断陷 ,原油成熟度逐渐增高。图 4参 4(刘鸿友摘 )In this paper, the authors discussed the features of the crude oil in Yitong graben by the analysis of bulk composition, carbon isotope and maturity. There is higher wax content in the crude oil. The δ 13 C of the crude oil is between -26‰ and -29‰, which shows the heavier carbon isotope characteristics, which is thought to be the lower mature oil. The geochemistry study shows that the crude oil feature is related to special parent matters of Yitong garben. At present, the found crude oil are all mature oil, not low mature oil. There are also some high mature oil, the maturity of crude oil is gradually increasing from Moliqing rift to Luxiang rift, and then to Chaluhe rift. Study also shows that those source rock maturity and migration conditions are the controlling factors to oil and gas distribution.

关 键 词：伊通地暂 原油特征 成熟度 低熟油 烃源岩 油气勘探 

分 类 号：P618.13[天文地球—矿床学] TE12[天文地球—地质学]