Remaining Oil Characterization Method Research in Complicated Multilayer Fault-block Reservoir

For the reason of geology,reservoir complexity and multilayer commingled production injection during the field development,the deep multilayer fault-block reservoir's remaining oil distribution is very complex.Taking Gaoshen reservoir as an example,based on the reservoir numerical simulation,remaining oil saturation,reserves abundance and water flooded grade to analyze the remaining oil distribution are used.Meanwhile,through stacking each layer's remaining oil index,all index's through-well profile is protracted,got the potential distribution of sand group,oil group and reservoir.Using this method,the remaining oil distribution is finely described both in plane profile and portrait profile.Local reservoir and all reservoir's remaining oil can be got potential which is the basement to make adjust development plan in this reservoir's late development stage.And it also has great reference value to study other similar reservoir' remaining oil distribution.