CO_2驱油封存区域土壤气监测技术及应用  

Soil Gas Monitoring Technology of CO_2 Enhanced Oil Recovery and Its Application Analysis

作　　者：张媛媛[1] 张煜[2] 张建[1] 陆胤君 

机构地区：[1]中石化石油工程设计有限公司 [2]中国石油化工股份有限公司胜利油田分公司

出　　处：《油气田环境保护》2014年第4期49-51,83,共3页Environmental Protection of Oil & Gas Fields

基　　金：国家"十二五"科技支撑计划(2012BAC24B05);胜利石油管理局博士后基金

摘　　要：针对二氧化碳驱油封存技术(CO2-EOR)国内尚无通用的环境监测方法的情况下,文章提出了土壤气CO2的通量以及δ13C监测的重要性,并结合胜利油田CO2-EOR项目开展的环境监测工作,提出了几点监测过程值得注意的问题:为识别CO2泄漏风险,注气前的环境监测数据至关重要;监测区域除了涵盖注气井和采油井,必须考虑注气过程中CO2地下运移的范围,但目前尚无明确的方法计算延伸的距离;在数据分析和挖掘过程中,由于参数的表征方式不同,借助统计学分析软件的类比功能实现监测方法之间的相互印证。In view of the CO2-EOR technology,there is not a set of general environmental monitoring method at present.This paper presents the significances of soil gas CO2 flux and carbon isotopeδ13C monitoring,and points out some problems during soil gas monitoring in CO2-EOR project of Shengli Oilfield,and gives some suggestions on how to deal with.Baseline monitoring is essential to identify the CO2 leakage risk;Monitoring site should not only cover the injection and production wells,but also consider the area of CO2 transportation during injection.However,there is no common method to calculate the potential extending distance.During the process of data analysis and exploration,owing to the different approaches of index representation,statistical analysis software should be used owning to its analogy function to complete the mutural corroboration between the different monitoring methods.

关 键 词：二氧化碳驱油封存 泄漏风险 土壤气监测 CO2通量 数据处理 

分 类 号：X830[环境科学与工程—环境工程] X511