GROUNDWATER RESOURCES OPTIMAL ALLOCATIONCOUNTERMEASURES IN THE LIAOHE OIL FIELD AREA

摘要

With the development of Liaohe oil field, water resource demand has gradually increased recently. There exist manyrnenvironment problems such as the formation and expansion of the cone of depression, water quality deterioration, seawater intrusionrndue to overpumping the groundwater in Neozoic. Groundwater flow numeric model in Neozoic was established through thernapplication of Visual MODFLOW model, which is to predict groundwater level in 2010 and 2020 according to different pumpingrnschemes. Based on development and utilization of water resource and its national economic demand, which is to predict the supplyrnand demand of water resource and make proper pumping schemes, meanwhile analyzing and predicting dynamic variation ofrngroundwater, and determining safety pumpage and optimal pumping distribution. The results of the optimal scheme shows thatrngroundwater level is back up slowly and the area of the cone of depression is still expanding through decreasing pumpage in thernserious overpuming groundwater area. It is suggested that pumping distribution should be regulated and sustainable utilization ofrnwater resource make sure in Liaohe oil field.