Chengong production data analysis software can realize the data analysis under variable flow rate and pressure of oil and gas wells. Through the analysis, the formation permeability, reserves and other parameters can be obtained, and these parameters can be used to predict the productivity of oil and gas wells in the future. The software can be widely used in the optimization of working system and the formulation of exploration scheme in oil and gas well exploration and development, especially for the analysis of bottom hole pressure data which can not be measured in dense oil and gas development.

Provide traditional methods of production data analysis (Arps, Fetkovich, Blasingame, Agarwal-Gardner, NPI, and Transient analysis methods).

The key parameters such as formation permeability, average formation pressure and others are obtained by using the combined graph analysis method (the differential pressure double-log analysis under the unit flow and the flow double-log analysis method under the unit pressure difference).

The actual time, the material balance time and the cumulative amount time are respectively provided as the horizontal axis; the actual pressure difference, the flow rate, the pressure difference under the unit flow and the flow rate under the unit pressure difference are provided as the vertical axis; the straight line segment analysis method of the various coordinate combinations figures is provided (right-angle, linear flow, bilinear flow, Semi-log, etc.).

Considering the influence of gas adsorption, stress sensitivity and gas slip-off effect on the dense gas, the shale gas and the coal-bed gas, the multi-section fracturing model of the horizontal well is provided.

The concept of equivalent virtual time is put forward, and the historical simulation problem of pressure, flowrate and accumulated flowrate under the change of working system (oil nozzle and gas nozzle) and shut-in in production are realized.

The data analysis methods of oil-water two-phase and oil-gas two-phase and gas-water two-phase production are proposed, and the prediction of the production capacity and the accumulation amount of the multi-phase fluid are put forward.

Provide gas-liquid two-phase flow regime calculation: For gas-liquid two-phase fluid, pressure conversion methods (single-phase liquid, single-phase gas, gas-liquid uniform flow, Hagedorn-Brown, Harsan-Kabir, Begges-Brill, Dons-Ros, Orkiszewski, Aziz, Mukherjee-Brill) considering various wellhead-to-bottom hole conditions are provided. And at the same time, calculation modules such as a pressure change under different depths and so on are provided.

Provide powerful productivity prediction function (transient productivity, flow change at fixed bottom hole pressure, analysis of oil and gas reservoir parameters influences to productivity, etc.).

Provide visual display function: According to the parameters of production data analysis or well testing analysis, calculate the formation pressure distribution at different times under the variable output and display the animation in three-dimensional graph.