The paper substitutes changing rate process for wellbore storage effect,and applies the Laplace transform deconvolution method to deal with the rate and pressure data of bottom hole and get real pressure derivative data.

Downhole shut-in pressure measuring technique can reduce effect of bore hole storage effect, shorten testing cycle , and impr.

Well test analysis methods used before only consider the effect of wellbore storage on well pressure behavior but not the effect of its variation, which greatly affect pressure performance due to the characteristics of condensate gas reservoirs.

The influence of wellbore storage, skin factor, interporosity flow coefficient and elastic storativity ratio to the bottom hole pressure of the observation well were analyzed.

Effect of wellbore storage exist commonly in a long time after well testing in Baolang oilfield,a low permeability reservoir with relatively high GOR,leading to a long time needed for conventional pressure buildup test operation.

A new transient pressure analysis method of the well with wellbore storage and skin effect in infinite reservoir is presented in this paper,that is the matching method using the ratio of dimensionless pressure and time.

Based on the fractal geometry and non-equilibrium sorption model of coalbed methane,the pseudo-steady mathematical models with well-bore storage and skin effects in fractal coalbed methane reservoir are presented when the constant flow rate is specified at the well-bore in infinitely large reservoir and bounded reservoir.