埕岛油田馆上段开发方案优化研究

Research of development plan optimization in upper Ng of Chengdao oilfield

针对埕岛油田馆上段开发过程中出现的压力下降快、平面上井组压降不均衡、油井含水上升较快、油田产量递减快等问题,运用数值模拟等技术,对注水方式、合理注采比、采油速度、储量动用程度等进行了优化研究,提出了细分注水层段、提高采油速度。

Some problems appeared during the development process of upper Ng in Chengdao oilfield, such as rapid pressure decline, disequilibrium pressure drops in well groups on the same level, water cut rises rapidly in oil wells, quick production declines of oilfield and so on. Using numerical simulation and other techniques, optimized study is done on water injection way, rational injectionproduction ratio, oil recovery rate, employed degree of reserves and so on. Some exploitation methods are put forward, such as subdivision of injection interval, increase oil recovery rate and enhance reserves employ degree.