目前低渗透油田的多套油层或同层同时开采逐渐增多,但其开采方式尚未有详细的论证。运用数值模拟对油层或同层采取分层开采与合采的饱和度差别界限进行研究。对实际生产层位的研究表明,不同饱和度极差合采与分采对产能的影响很大,但具体界限与油相相渗曲线的端点值有关。 At present, multiple sets of oil reservoirs or same-layer simultaneous mining in low-permeability oil fields are gradually increasing, but the method of exploitation has not been demonstrated in detail yet. Numerical simulation is used to study the difference of saturation between stratified mining and co-production in the oil layer or in the same layer. The research on the actual production horizon shows that the effects of extremely poor combined saturation and fractionation on productivity can be greatly affected, but the specific boundary is related to the endpoint value of the oil phase infiltration curve.