Science and Education Publishing American Journal of Energy Research 2328-7330 3 1 2015 04 14 New Method of Solving the Seepage Model for the Multilayer Composite Reservoir with the Double Porosity 8 12 EN Qiang Wang Institute of Applied Mathematics, Xihua University, Chengdu, China Shunchu Li Mei Luo Dongdong Gui AJER2015312 10.12691/ajer-3-1-2 2015 03 19 2015 04 04 2015 04 14 Aimed at multilayer composite reservoir with the double porosity, meanwhile considering the influence of well bore storage and skin effect, the seepage model for multilayer composite reservoir with the double porosity which the flow was steady from pore to crack was established in different outer boundary (infinite; closed; constant pressure) conditions; the exact solution of reservoir pressure drop and bottom hole pressure drop were obtained by Laplace transform in the Laplace space; the unified expression of solution was obtained by constructing similar kernel functions in different outer boundary conditions, therefore new method which solving this class of reservoir model is put forward, namely similar construction method. This method plays an important guiding role in exploring seepage law of oil and gas reservoir.