海上油田开发生产系统整体优化决策技术

Technology for Optimization and Decision of Development-production System in Offshore Oilfields

海上油田开发的核心目标是在平台寿命期内实现最大经济采收率,调整注采结构、优化开发生产系统是重要的增产措施之一。将整个油田开发的全过程看做一个复杂的大系统,以经济效益的最大化为目标,基于梯度优化算法和极大值原理建立了海上油田注采结构优化方法,使油藏开发动态实时处于最优,进而对开发生产系统进行整体优化,形成了一套适用于海上油田开发生产系统的优化决策技术,并以海上M油田目标区为例实现了海上油田开发生产过程整体优化,为实现海上油田高效开发提供了理论和技术支持。

The major goal of offshore oilfield development was to achieve maximum economic recovery ratio in the life time of platforms.Adjusting injection-production structure and optimizing development production system were two important measures of improving the production.The whole process of oilfield development was integrated into a complex system,its goal was to maximize economic efficiency.Based on gradient optimization algorithm and the maximum principle,the offshore oilfield injection-production structure optimization method was established,which helped to optimize the development of production system and form a set of production system optimization technology applicable for the development of offshore oilfield.Then a case from M Oilfield on the offshore oilfield development optimization is taken for an example,the study provides theoretical and technologic support for effective development of offshore oilfields.