高校地质学报2016，Vol.22Issue(3)：549-554,6.DOI:10.16108/j.issn1006-7493.2015228
生物降解作用对大宛齐油田库车组原油轻烃参数的影响
Influence of Biodegradation on Light Hydrocarbon Parameters in Crude Oil of Kuqa Formation from Dawanqi Oilfield
摘要
Abstract
Oil samples from Dawanqi Oilfield in the Tarim Basin, NW China, that have been biodegraded to various degrees were analyzed to study the effect of biodegradation on light hydrocarbons. The results show that biodegradation led to preferential depletion of n-alkanes, followed by iso-alkanes and cycloalkanes, which results in variations in the corresponding C6 and C7 ternary diagram. With increasing biodegradation, the values of n-heptane and isoheptane decrease, ratios of toluene/n-heptane and benzene/n-hexane increase, and n-heptane/methylcyclohexane ratio decreases. In Dawanqi Oilfield, the crude oil with heptane values of 0~21 and isoheptane values of 0~2.6, is categorized as“Biodegraded”zone. The graph of toluene/n-heptane versus n-heptane/methylcyclohexane indicates that secondary alterations should be applied with caution in slightly biodegraded crude oil.关键词
轻烃参数/生物降解作用/大宛齐油田/塔里木盆地Key words
Light hydrocarbon parameters/Biodegradation/DawanqiOilfield/Tarim Basin分类
能源科技引用本文复制引用
杨禄,李美俊,张春明..生物降解作用对大宛齐油田库车组原油轻烃参数的影响[J].高校地质学报,2016,22(3):549-554,6.基金项目
国家自然科学基金项目（41272158；41172136）；油气资源与探测国家重点实验室项目（PRP/indep-2-1302）；油气资源与探测国家重点实验室开放基金（PRP/open-1503）资助 （）
