摘要
为保障鄂尔多斯盆地黄土塬地区CO2驱油封存项目的安全开展,通过对CO2驱油封存技术和黄土塬地区地形地貌及土壤环境特点进行综合分析,辨识了黄土塬地区CO2驱油封存过程中CO2泄漏在土壤中的空间运移特征,探究了土壤环境参数的变化规律,总结了土壤不同环境指标和土壤层位下适宜的CO2泄漏监测方法,建立了一套适用于黄土塬地区特点的全时空、立体化、多参数的CO2驱油封存泄漏土壤监测体系。结果表明:黄土塬地区CO2驱油封存过程中CO2泄漏易受其地形地貌及土壤特点的影响,具有明显的纵向易反渗、横向多源化的空间运移特征以及土壤环境指标响应程度夏季高、冬季低的时间响应特征,所建立的监测体系对该地区土壤环境特点及CO2泄漏特征具有一定的适应性,可为其他复杂地区土壤CO2泄漏监测提供指导。
In order to ensure the safe development of the CO2-Enhanced Oil Recovery(CO2-EOR)and storage project in the loess tableland region of the Ordos Basin,this paper comprehensively analyzes CO2 flooding technology,topographical characteristics and soil environmental characteristics of the loess tableland region,identifies the migration characteristics of CO2soil leakage during CO2-EOR and storage,explores the changes of soil environmental parameters,summarizes the targeted CO2leakage monitoring methods under different soil environmental indicators and soil layers,and establishs a multi-space-time,multi-parameter soil monitoring system for CO2leakage during CO2-EOR and storage applicable to the loess tableland region.The results indicate that CO2leakage during CO2-EOR and storage in the loess tableland region can be seriously affected by the topography,geomorphology and soil characteristics.The leakage has obvious spatial characteristics of vertical reverse osmosis prone and horizontal multi-source,as well as soil environmental indicators with high response in summer and low response in winter.The monitoring system established in this paper has certain adaptability to soil environment and CO2leakage in this area,and can also provide guidance for other complex terrain soil CO2leakage monitoring。
作者
汤沭成
林千果
王昊
江绍静
王维波
温庆志
种珊
张一梅
郭军红
TANG Shucheng;LIN Qianguo;WANG Hao;JIANG Shaojing;WANG Weibo;WEN Qingzhi;CHONG Shan;ZHANG Yimei;GUO Junhong(College of Environment Science and Engineering,North China Electric Power University,Beijing102206,China;Suzhou Institute of North China Electric Power University,Suzhou 215123,China;Shanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi’an710075,China;College of Engineering,Peking University,Beijing100871,China;Beijing Innovation Center for Engineering Science and Advanced Technology,Peking University,Beijing 100871,China;State Key Laboratory Coal Resources and Safe Mining,China University of Mining and Technology(Beijing),Beijing100083,China)
出处
《安全与环境工程》
CAS
北大核心
2020年第6期112-118,125,共8页
Safety and Environmental Engineering
基金
国家重点研发计划项目(2018YFB0605504)。
