Research and Application on Multi-Branch Wells Based Optimization Technology

Abstract

The production of a multilateral horizontal well is higher than the production of a vertical well, even than that of a unilateral horizontal well. Nonetheless, the stimulation effect is significantly influenced by the branch parameters, and the impacts of branch parameters on the productivity of a multilateral horizontal well are rather complex. The interference of the main hole with the branches is the primary factor influencing the stimulation effect of the multilateral horizontal well: the larger the angle-building rate of the branch boreholes, the better the stimulation effect. Therefore, longer branches with fewer branch number or shorter branches with more branch number can be used to optimize the stimulation effect of multilateral horizontal wells.