Abstract:
Aiming at dual-permeability media reservoir, a model for non-linear seepage of dual-porosity media reservoir was established in this paper.In the model, the effective wellbore radius and well bore storage is taken into consideration in the case of variable flow rate.By using Laplace transform, the nondimensional expressions of reservoir pressure and bottom hole pressure are obtained in Laplace space.And it is found that there is a similar structure among the expressions of solution under different outer boundaries.