盘古梁侏罗系油藏提高水驱效率技术研究

Research of Technology of Improving Waterflooding Efficiency in Jurassic Reservoirs in Panguliang Area

靖安油田侏罗系油藏随着开发时间的延长，逐渐暴露出水驱状况逐年变差、含水上升速度加快、递减增大等问题。为了降低递减，提高油田整体开发水平，针对侏罗系油藏开发中存在的问题，结合油藏地质特征．通过对油藏水驱状况及含水上升的主要原因进行分析，提出了平面注采调整、完善注采井网、水驱剖面治理等稳产技术对策，为下一步油田的稳产提供可借鉴的依据。

As the passing of development time, problems such as worsening water-flooding situations, increasing water cut rising, and the rising successive-decrease of production rate year after year emerged gradually in the Jurassic reservoirs of Jing＇an Oilfield. In order to reduce the successive decline, and to improve overall level of the oilfield development, the authors put forward the technical countermeasures to stabilize the production rate such as plane adjustment of injection-production relations, perfection of the injectors-producers pattern, and water flooding profile control, etc., in the light of existing problems in the Jurassic reservoir development, combining with the geological characteristics of the reservoirs, and through analysis of the waterflooding conditions and main reasons of the water-cut increase. It provides a reference basis for the next-step stabilization of the production rate of the oilfield.