Numerical Simulation Study for Water Breakthrough Law of Horizontal Well in Edge Water Reservoir

摘要

There are abundant research achievements for water breakthrough law of horizontal well in bottom water reservoir, but fewer in edge water at home and abroad. BZ Oilfield of Bohai Bay has characteristics of active edge water, well pattern of directional and horizontal wells. At present, there is a lack of understanding of wafer breakthrough law of horizontal well in edge water reservoir. The paper established a method considering permeability heterogeneity for identifying water breakthrough position of horizontal well in edge water reservoir by using numerical simulation. It has proved that this method is feasible and reliable in BZ Oilfield. Combined with WI decision in breakthrough, put forward some measures for stabilizing oil production and water control, guided the implementation of oilfield measures and stable production.