Abstract:Taking bottom water H oilfield in Sudan for example, various rhythm bottom-water reservoir numerical models are established, and the effect of inter-bed size, height and location on development performance is studied, and the technology strategy is pointed out herein. The result shows that the inter-bed is helpful to improve the development performance, and the effect of water cut control is improved with the increment of inter-bed radius; and the height of inter-bed has a few effect on development performance; and the good water cut control effect is obtained in positive rhythm reservoir during low water-cut stage and in reverse rhythm during high water water-cut stage; the inter-bed located on the area near the water-oil-contact and multi-inter-bed in bottom-water reservoir show great performance; and the remaining oil is mainly located on the area between and under the inter-bed. The development technique strategy of various rhythm bottom-water reservoirs for controlling water coning is proposed, such as the perforation optimization by making full use of inter-bed, off-take rate optimization by controlling vertical-horizontal permeability ratio, and artificial inter-bed implementation and so on. The development practice of H oilfield shows great performance using optimization completion technique after making full use of inter-bed and deploying horizontal well.