Research of Remain Oil Distribution and Horizontal Well Development Adjustment for Heavy Oil Reservoirs with Bottom WaterATER

QHD32-6 oilfield west area NmⅡ1 sand is heavy oil reservoir with bottom water.NmⅡ1 sand now comes into high water cut period after 5 years development.Firstly,NmⅡ1 sand water conning law is analyzed through production performance and production logging.And then remain oil distribution is researched after description of reservoir and reservoir simulation.Third,the pilot horizontal well is drilled at remain oil concentration area,and the pilot horizontal well is high production and low water cut.Test production show research result of remain oil distribution is veritable.Lastly the development program of horizontal wells infill NmⅡ1 sand wholeness is proposed.The production history shows NmⅡ1 sand development adjustment is successful,and provides production experience for same reservoirs.