气田开发地下水污染预测模型参数的测定  

MEASUREMENT OF MODELING PARAMETERS FOR THE GROUNDWATER POLLUTION FROM NATURAL GAS FIELD EXPLOITATION

作　　者：翁帮华[1] 刘国东[2] 杨洁[1] 熊春平[1] 

机构地区：[1]中国石油西南油气田分公司天然气研究院 [2]四川大学水电学院

出　　处：《石油与天然气化工》2003年第4期257-260,262,共5页Chemical engineering of oil & gas

摘　　要：为研究气田开采作业中污染物从地表渗入引起的浅层地下水污染,选择某井场气田水下渗引起的地下水污染区域进行抽水试验与弥散试验,并应用国际上通用的MODFLOW和MT3DMS软件对试验场地下水流和水质运移模型进行识别,确定主要模型参数,包括含水层渗透系数K、给水度Sy、有效孔隙度n_e及弥散度α等。试验结果表明,选用胭脂红合成食用色素作示踪剂具有色度大、性质稳定、不易吸附等优点,选用软件界面好、易操作、精度高、速度快、通用性强。In order to investigate the pollution of shallow groundwater caused by pollutant seeping in from ground surface, an area where groundwater has been polluted by gas - field water seeping from wastewater pool is selected to carry on the water - pumping and dispersion experiment . The world - widely used softwares, MODFLOW and MT3DMS are applied to model groundwater flow and water quality, and to define aquifer modeling parameters, including hydraulic conductivity(K) , specific yield (Sy) , porosity (ne) and dispersivity(α) etc. The research results show that the edible carmine compound used for tracing is proved to be fine for bright color, character stability, and not to be adsorbed etc. , and that the softwares have some advantages in friendly interface, easy to operate, good precision, and wide utilization.

关 键 词：气田开发 地下水污染 预测模型 参数 测定 抽水试验 弥散试验 环境保护 水质 

分 类 号：X741[环境科学与工程—环境工程]