地质封存CO_2泄露对土壤理化性质的影响  

Influence on Physical and Chemical Properties of Soil for the Leakage of Carbon Dioxide during Geological Storage

作　　者：张丙华 张倩[2] 耿春香[2] 景炯炯 

机构地区：[1]中国石油大学(华东)理学院,山东青岛266580 [2]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《广州化工》2016年第7期156-159,共4页GuangZhou Chemical Industry

摘　　要：以胜利油田正在实施CO2驱的某区块为研究对象,通过室内模拟试验模拟地质封存CO2泄露,考察CO2泄露时间和速率对土壤理化性质的影响,探讨土壤理化性质变化的机理。研究结果表明,地质封存CO2的泄露会对土壤理化性质产生显著影响,随着CO2泄露浓度的增大,土壤p H降低,土壤含水率降低,有机碳含量降低,碳酸氢根离子含量升高,硫酸根离子、电导率、全氮和磷的含量基本不发生变化。In order to study the influence on physical and chemical properties of soil for the time and rate of CO2 leakage and explore the mechanism of changes of soil physical and chemical properties,a certain area implemented CO2-driven by SLOF（shengli Oil Field） was studied by means of indoor simulation experiment which simulated the leakage of Carbon dioxide.It was found that it had the greatest impact on the physical and chemical properties of soil.With the increase of concentration of CO2 leakage,the soil p H,moisture and organic carbon were reduced,HCO-3was increased,the content of SO2-4,electrical conductivity,total nitrogen and phosphorus were unchanged.

关 键 词：环境 地质封存 二氧化碳泄露 土壤 理化性质 

分 类 号：X53[环境科学与工程—环境工程]