已知某低孔特低渗砂岩油藏，具有微裂缝发育、非均质性很强的特点。油层厚度10.8m，平均孔隙度10%，平均空气渗透率0.7×10-3μm2，油藏温度61.4℃，油藏压力15MPa，饱和压力9.8MPa，原油密度0.85g/cm3，原油粘度2.2mPa.s，原油体积系数1.2，溶解气油比75m3/t。数值模拟区的面积16km2，网格步长25×25m。研究工区的裂缝方向为NE75º，为便于模拟过程中的参数调整，在建模时将原始井位坐标顺时针旋转15º。水平面内沿裂缝发育的方向定义为x方向，与之垂直的方向定义为y方向。将裂缝的影响归结为渗透率各向异性的影响，取x方向渗透率为y方向渗透率的5倍，z方向渗透率为x方向渗透率的1/10。

Conte is known of a low-permeability sandstone reservoirs, with micro-fracture, non-homogeneous strong features. Reservoir thickness of 10.8m, average porosity 10%, with an average air permeability of 0.7 × 10-3μm2, reservoir temperature of 61.4 ℃, reservoir pressure of 15MPa, saturation pressure 9.8MPa, oil density 0.85g/cm3, oil viscosity 2.2mPa. s, crude oil volume factor of 1.2, dissolved gas-oil ratio 75m3 / t. Numerical Simulation of the areas of the 16km2, mesh-size 25 × 25m. Research working area of the crack direction NE75 º, in order to facilitate the simulation process of parameter adjustment, in the modeling coordinates of the original wells clockwise 15 º. The horizontal plane along the direction of crack growth is defined as the x direction, with the vertical direction is defined as the y direction. Attributed to the effects of cracks in the impact of permeability anisotropy, take x direction y direction of the highest penetration rate of five times the penetration rate, z the direction of penetration for the x direction of penetration of 1 / 10.