七个泉油田原油的生物降解及配伍条件选择  

Evaluating Microbial Degradation Properties and Compatibility of Crude Oil from Qigequan Oilfield

作　　者：孔淑琼[1] 佘跃惠[1] 易绍金[1] 王正良[1] 黄晓武[2] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]桂林理工大学环境科学与工程学院,广西桂林541004

出　　处：《石油天然气学报》2011年第1期48-52,166,共5页Journal of Oil and Gas Technology

基　　金：国家"863"计划项目(2008AA06Z204);国家自然科学基金项目(50974022)

摘　　要：对青海七个泉油田原油进行了微生物降解试验,通过研究原油降解率、培养液表面张力、样品粘度以及饱和烃、芳烃、非烃、沥青质各组分在原油中降解前后相对含量的变化,分析比较了不同原油在不同菌种与不同培养基配伍时的降解效果。结果表明,试验所用菌种对原油均具有较好降解作用。色谱分析表明,经微生物作用后,原油中族组分的相对含量发生较大变化,饱和烃含量总体呈增加趋势,芳烃、非烃和沥青质的百分含量在不同培养条件下分别增加或减少。在试验条件中,Bjbios菌种与培养基①的配伍降解原油效果更佳。An experiment was conducted on microbial degradation of crude oil from Qinghai Qigequan Oilfield for evaluating the degradation effect of different microbes in different culture media and investigating the degradation efficiency of crude oil,the surface tension of media,viscosity of sample and relative content variation of saturated hydrocarbon,aromatic hydrocarbon,non-hydrocarbon and asphalt.The result shows that the bacteria used in the experiment could degrade the crude oil.The crude oils treated by bacteria were analyzed with gas chromatograph (GC),then the results of GC show that the relative percent contents of crude oils changed a lot,approximately saturated hydrocarbon content were increased,aromatic hydrocarbon,non-hydrocarbon and asphalt were likely raised or reduced under different conditions.In consideration of the variety of degradation efficiency,surface tension of medium,viscosity and relatively components content,microbial degradation improves the properties of the crude oil greatly.The effect of Bjbios with No.1 Medium is optimal on degrading crude oil in this experiment.

关 键 词：微生物降解 降解率 表面张力 原油族组成 七个泉油田 

分 类 号：P618.13[天文地球—矿床学]