Numerical Simulation And Residual Oil Distribution Law Research Of Ba 19 Fault Block Reservoir

Therearemuchlow-permeabilityoilreservesinourcountry.Itisestimatedthattheunused oil reserves which Permeability less than 50×10^-3μm² is more than 40% of the totalin our country unused oil reserves. The efficient development of low permeability reservoirsis so important to maintain effective development of energy demand in China.This thesisfocuses on the development status of Block 19, Usingtheoretical calculations combined withreservoir simulation technology,we get a target reservoir numerical model to analyze thewater flooding the remaining oil distribution and the design development of the target blockadjustmentprogram.We analysis the geology and development situation of block19 oil region, Throughdetailed geological modeling software, we establish a three-dimensional of detial geologicalmodelofblock19oilregion,analysisreservestherationalityofthemodelthroughthefittingwe use Eclipse reservoir simulation software to establish reservoir numerical model of thetarget block and Select the better reservoir properties,rock-fluid properties and otherparameters. fitting the target block 10 years of production history (pressure, moisture, liquidsproduction, water profile, etc.), evaluate the quality of history matching. The results showthatafteradecadedevelopofBlock19oilregion,theEfficiencyofwaterusingbecomelowerandlower, andso dothe development effect Historyfittingcurveshowthat theheterogeneityof Block 19 oil region is so serious,degree of recovery of the small layer and remainingreserves are vary greatly, II5 layer and II3 layer have a highest storage is is the next stepfocuses on the development of the layer. remaining oil distribution is mainly affected by thestructural high location, the corner of the fault zone, reservoir edge, the potential impact ofresidualoilzones.Numerical Simulation results show that, ba 19 fault block through adjustment Wells,drilling for hole, carry liquid, water shutoff profile control etc. Series adjustment measures can effectively improve the recovery, to drill, including II3 and II4 reservoir in the Wells ofthemeasuresforholementionliquidbesteffect.