The well testing analysis of coalbed gas and shale gas is to add the pressure sensitive effect and adsorption effect on the basis of the original well testing software. Considering the calculation complexity of multi-stage fracturing of shale gas horizontal well, the software uses GPU to calculate and improves the calculation speed.

Six calculation models considering pressure sensitive are provided: Palmer-Mansoori pressure sensitive model, Seldle-Suitt pressure sensitive model, exponential model, logarithmic model, modified Palmer-Mansoori pressure sensitive model and direct experimental data.

Langmuir hypothesis was used to consider adsorption and desorption.

Fick diffusion equation is used for formation gas diffusion.

For the high speed seepage of gas, the Darcy law is modified by turbulence factor.

The state equation of real gas is used to analyze coalbed gas well testing.

Software provides a joint analysis method for DST well testing to coalbed gas.

Software provides well testing analysis of injection pressure drop, such as broken coalbed formation provides G function and other analysis methods to coalbed gas.

For shale gas, in addition to considering pressure sensitivity, adsorption, diffusion and high speed non-Darcy seepage (the same as coalbed gas), the following models are provided:

Three kinds of horizontal well multi-fracturing models with uniform flow rate, infinite conduction and finite conduction are provided.

Providing multi-stage fracturing model of horizontal well with unequal length and equal distance.

To provide multiple fracture models for fracturing along horizontal wells.