Study on A3 well completion method in Pinghu oilfield of East China Sea.;

Taking one sandstone reservoir as an example, the effect of well completion ways on critical pressure differential and well productivity in sandstone reservoir has been studied by triaxial elasto-plasticity finite element model for sand prediction.

Optimization of well completion project for the selectively perforated horizontal well;

During the polymer flooding in unconsolidated sandstone reservoirs,reduction of polymer solution viscosity might be caused because of unreasonable selection of sand control completion method,and consequently polymer flooding effect would be affected.

On the basis of researching the empirical formulas of productivity calculation of the oil & gas well completion both in China and broad, and several common completion methods in shallow gas pool of east Sichuan gas field, the mathematical model for predicting completion productivity has been established.

Based on the Grey Theory, a new method to choosing the optimal completion method was proposed, which considered the initial productivity, the accumulative productivity, the NPV, the expense, the dynamic invest payback period.