Analysis on the distribution characteristics of oil-water layer and potential-tapping effect of add-perforation in XX oilfield

XX oilfield has a total of 10,561 oil and water wells, 6,790 wells were drilled in the oil-water layer, but only 10.3% of the total wells were drilled in the oil-water layer, so the development degree of the same layer is relatively low. In the stage of water cut and stable production, the geological reserves of oil-water layer are considerable. Based on a large number of data statistics of oil-water layer, this paper understands the developed situation of oil-water layer and the characteristics of plane and vertical distribution, and discusses the feasibility of oil-water layer to add perforation and tap potential from the effect of added perforation well.