海上稠油高效开发新模式研究及应用

以海上稠油油藏为对象，以技术可行性为前提，从提高开发效益的角度出发，提出加速该类型油藏开采的新模式。新模式的指导思想是在投产初期就尽可能地提高采油速度，并尽可能延长高速开发的时间，以达到最大采收率。新模式模糊了一、二、三次采油的界限，把三阶段的系列技术集成、优化和综合应用。在开发技术策略上，施行提前注水、注水即注聚、注水注聚相结合的原则，建立了以聚合物驱为主的提高采收率技术体系和以钻井压裂、适度防砂、电潜螺杆泵为主的钻采工艺配套技术体系。采用新的开采模式，海上稠油油藏的采收率将有可能在原模式基础上提高5%~10%，甚至更高，显著提高油气资源的利用率，对于石油资源相对紧缺的我国具有十分重要的意义。

The Study and Application of New Mode of Effective Development of Offshore Heavy Oil Field

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.