块状底水裂缝型油藏含水上升规律及稳油控水对策

正确地认识和预测油田含水上升规律,是实施油田稳油控水,提高油田整体开发效果的一项基础性工作。X油田为一生物礁地层圈闭的块状底水裂缝型油田,油藏边地水能量充足,油水粘度比大。开采特征主要表现为见水早,含水上升速度快。本文根据油田PVT和动态数据对含水上升规律进行了深入研究,研究表明,整体压锥能显著提高油井产量、降低含水,有效改善油田开发效果,对指导本油田制定稳油控水措施及同类油田开发有重要意义。

Water Cut Rising Rules on Block Fracture Reservoir with Bottom Water and Measure to Stabilize Oil Production and Control Water Cut

It is a fundamental work for stabilizing oil production,controlling water cut and improving the whole developing effect to properly recognize and forecast oilfield water cut raising rules.X oilfield belongs to type of reef stratigraphic trap block reservoir with fracture,sufficient power of bottom water and high oil water viscosity ratio.Early water breakthrough and high rate of water cut are main recovery characteristics.On a basis of PVT and dynamic data in the oilfield,water cut increase rules are deeply researched shows that whole coning control can greatly enhance oil production rate,reduce the rate of water cut and effectively improve oilfield development effect,which is of importance for X oilfield to make out measure to stabilize oil production and control water cut and for development of other similar oilfields.