THREE-DIMENSIONAL FRACTURE NETWORK SIMULATION IN HUANGDAO WATER SEALED CAVERNS AREA
MA Feng1，BAI Fenghuai2，CHEN Gang3，LIN Wenjing1，WANG Guiling1
(1. The Institute of Hydrogeology and Environmental Geology，CAGS，Shijiazhuang，Hebei 050061，China；2. Comprehensive Geological Team of Shijiazhuang，Geological Exploration Bureau of Hebei Province，Shijiazhuang，Hebei 050081，China；
3. School of Environmental Studies，China University of Geosciences，Wuhan，Hubei 430074，China)
Abstract：Low permeability fractured rock is the best choice for the construction of water sealed underground oil tank. Three-dimensional fracture network simulation is an effective technical means of clarifying the essence of fracture distribution characteristics and seepage of fracture water rules for the underground project. The latest software discrete fracture network(DFN) is used to analyze the permeability of Huangdao water sealed underground oil tank based on the statistical work of field surface cracks and drilling image fracture results. Transmissibility distribution and connected compartmentalization of ZK13 are simulated in the model and the results are conceived to be reasonable and reliable through the comparison with the field test results. The example shows that the simulation results can deeply reveal the nature of fissure water seepage and could provide reference for the subsequent evaluation of water sealed effect and water inflow quantity.
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2011, Vol. 30 
