The production split method in multilayer reservoir based on grey relational analysis

At present, production split methods mainly include effective thickness method, formation coefficient method and dynamic equation split method. On account of various factors restriction, the applied results are unsatisfactory. In order to fully grasp the multilayer reservoir layering exploitation status, a new production split method is established by utilizing grey relational analysis based on traditional production split methods. The new method divides the influence factors of single layer production split into static geological factor and dynamic development factor. We confirm correlation degree weight of static geological factor and dynamic development factor by utilizing grey relational analysis, which synthetically considers various production split influence factors. And finally a new production split method is established. Through actual applied verification, the new method is accurate and widely adaptable, which provides a new idea for production split work.