二连蒙古林普通稠油油藏开发调剖堵水技术

蒙古林油田由普通稠油砂岩油藏和普通稠油砾岩底水油藏组成，油层单一，油水粘度比大，层间接替能力差、稳产难度大。为了改善常规注水开发效果，15年来，形成以重建地质模型和剩余油分布规律研究为基础调剖堵水稳产技术，即砂岩整体化学调剖为主体的“调水增油”技术、砾岩层状区横向驱替整体调剖稳产技术，实现了由低含水期到高含水期的相对稳产。

Profile Control and Water Shut-off Techniques for Heavy Oil Reservoirs in Menggulin Oilfield

Menggulin oilfield is composed of conventional heavy oil sand reservoirs and conventional heavy oil bottom water conglomerate reservoirs. Oil layers are simple with high oil-water viscosity ratio, and it is difficult to have stable production. In order to improve the development results of conventional water injection, profile control water shut-off technology, which is based on rebuilding of geologic models and research on distribution rules of remaining oil, has been developed to keep stable production for 15 years. This kind of technique, namely, water control and oil stimulation technique focusing on overall chemical profile control in sandstone, and lateral sweeping overall profile control technique in layer conglomerate area, have played a key role in keeping relative stable production from low water cut stage to high water cut stage.