Optimization of Horizontal Well Pattern in Low Permeability Reservoirs

Gulongnan area in the western periphery of Daqing is an important area with large unproduced reserves for future development.Because of low permeability,vertical well can't be used for production effectively,and the production perwell is low.Recently,with the application of horizontal well technology,the hard-to-producing reserves are developed.By taking Block Mao15-1as an example,the horizontal well optimization technology which uses artificial fracture to flood oil effectively is shown here,it includes the calculation of effective flooding distance and well unit optimization and the determination of well spacing and row spacing.Proven by practical experience,the optimization of horizontal well can be effectively driven and better development effect is obtained.It is instructive for the development of reservoirs with low permeability.