关键词: 海上稠油, 开发模式, 钻井压裂, 适度出砂, 注水注聚

Abstract: Aimed at offshore heavy oil reservoir, on the basis of technological feasibility, a new model of developing offshore heavy oil reservoir is presented for more benefits. increasing production rate in early stage and prolonging the time of highrate development are ideas of new model, meanwhile, maximum oil recovery can be obtained in the minimum time. The new model is out of focus of the primary development and secondary or tertiary recovery, while a series of technologies in the three stages are integrated, optimized, innovated and comprehensively applied. Taking early stage water flooding, polymer injecting while water flooding as the policy of development technologies, EOR technological system which takes polymer flooding as main technologies and takes drilling and production support technological system which takes multilateral well, limited sand production and electric submersible progressive cavity pump as main technologies, are set up. Adopting the new model, recovery of offshore heavy oil reservoir can be increased by 5%~10% or more, so it has great significance to China which is lack of oil.

Key words: offshore heavy oil, development model, drilling fracturing, limited sand production, water and polymer flooding