Recent years, more and more testing data show that for developing oilfield by water injection to keep pressure, when flowing pressure at bottom less than that of saturation pressure, inflow performance curve deflects to pressure axial and appears the maximal point.

Making use of dynamic curve of process flow index to raise gold recovery rate;

The realization of real-time continuous dynamic curves in VC;

Realization of dynamic curve and data reports in the measuring and control system;

Study on characteristics of horizontal well inflow performance considering variable mass flow in solution gas drive reservoirs

Condensate dropout is widely existent in development of condensate gas pool, usually different from gas inflow performance.

The key problem of producing nodal analysis for gas-water well is analysis of inflow performance of the gas -water well.

THE PREDICTION OF FUTURE IPR OF VERTICAL WELLS IN LOW PERMEABILITY RESERVOIRS;

Based on the non-Darcy percolation theory in low permeability reservoir and analysis of the function Kro/Boμ,a dimensionless IPR equation for damaging well in low permeability reservoir both under saturated and unsaturated states is derived.

Base on the theory of non-Darcy flow and deformed media percolation in the low permeability reservoir and the analysis of the shape of Kro/(Boμ) function,a universal dimensionless IPR equation is derived for saturated and undersaturated linear deformation low permeability oil reservoirs.