基于GMS的滨海油田输油管线地下水污染物预测

Goundwater pollution of pipe laying forecasts in coastal oil fields based on GMS

运用地下水数值模拟技术,采用GMS中的MODFLOW模块建立地下水流场模型,MT3D模块建立地下水溶质运移模型,利用地下水实测流场与计算流场进行比较,率定含水层参数,并对建立的模型进行校正与识别。最后,预测滨海油田油井和输油管线在正常、输油管道破裂与老化腐蚀造成的原油泄漏等3种工况下,原油地下水污染物第10年内与20年内的时空分布特征及对周边村庄的影响。

Using groundwater numerical simulation technology,the groundwater flow field model was established by the MODFLOW module in the GMS. The MT3 D module established the groundwater solute transport model. The calculated water levels were compared with the observed ones from wells to reduce the model error through adjusting the model parameters,such as hydraulic conductivity. Finally,the temporal and spatial distribution characteristics of crude oil groundwater pollutants in the first 10 years and 20 years and the impact on the surrounding villages under the three conditions of normal and oil pipeline rupture and crude oil leakage caused by aging corrosion are predicted.