In terms of big FRP wind tube which is designed and manufacturedby our chinese and exported to Pakistam, its main design and process are brieflyintroduced in this paper.

This paper proposes mathematic model for well test analysis of perfectly describing the composite reservoir with the bottom-hole storage and the skin effects and the three kinds of outer boundary conditions(infinite boundary,constant pressure outer boundary and closed boundary).

This paper proposes a mathematic model for well test analysis of perfectly describing the fractal dual porosity reservoir with the bottom-hole storage and the skin effects and the three kinds of outer boundary conditions(infinite boundary,constant pressure outer boundary and closed boundary).

This paper proposes mathematic model for well test analysis of perfectly describing the dual porosity reservoir with the bottom-hole storage and the skin effects and the three kinds of external boundary conditions (infinite boundary, constant pressure outer boundary and closed boundary).

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.