After using PI decision technology, the composite declining rate decreased to 1.47% from 15.02 %, water-cut escalating rate dropped to 0.10% from 0.72%, and recovery efficiency increased 3.8%, the effect of reducing water and increasing oil was very obvious.
Prediction of interbeds intercalated into complex heterogeneous reservoirs at a high water cut stage
The model calculates the geometries of stream tubes, remaining oil distribution and water cut at different development stages in the near future, and uses a three-dimensional simulation to track fluid movement in each stream tube slice.
Differences between simulation algorithms are the most pronounced for long-term responses (95% water cut and 50% oil recovery), with sequential Gaussian simulation yielding the most accurate prediction.
Simultaneous Integration of Pressure, Water Cut,1 and 4-D Seismic Data In Geostatistical Reservoir Modeling
A geostatistically-based inverse technique, the sequential-self calibration (SSC) method, is used to update reservoir models so that they match observed pressure, water cut and time-lapse water saturation derived from 4-D seismic.
It has been found that this weak gel system can significantly enhance oil recovery and effectively reduce water-cut.
The results show that fines migration in an oil formation can accelerate the development of heterogeneity of the reservoir rock, and has an obvious influence on production performance, i.e., water drive front, water-cut trends, and oil recovery.
Chromatographic determination of C1-C5 hydrocarbons in water-cut oil
As we see, the sampled realization, captures correctly the observed water-cut.
Each figure represent a water-cut in one of the production wells.