生物酶在低渗透油藏中提高生产率的研究

Application of Enzyme in improving productivity of low permeability reservoirs

低渗透油藏具有低压、低产、原油含蜡量高、粘度高、凝固点高、裂缝发育、开发效果差的缺点,因此引入生物酶以提高采收率,与常规处理剂比较,生物酶不受各种剪切、压力、降解、水矿化度等影响,残渣少,对地层无伤害,具有很高的实用价值。

Low permeability reservoirs feature low pressure and productivity,high freezing point,wax content and viscosity in crude oil,and fracture development in low efficiency.Enzyme is introduced to improve the efficiency of recovery on account of the fact that various shear,stress,degradation and water salinity exert no impact on its application as well as less residue and no damage to formation.It proves high practical value compared with conventional treatment.