储层的敏感性特征分析是各项油气保护工作的起始点和基础,为了研究冷35块低渗透油藏储层注水的伤害性,对冷35块S31的岩样进行了室内水敏性、盐敏性、碱敏性评价,从面判断该块储层是否存在敏感性,以及每一种敏感性的敏感程度,以便于该块在注水开发过程中注水水质对油层的伤害。 The sensitivity analysis of reservoir is the starting point and basis of various oil and gas conservation work. In order to study the injuriousness of water injection in Cold 35 low permeability reservoirs, indoor water sensitivity of 35 S31 samples was studied, Salt sensitivity and alkali sensitivity. The sensitivity of each reservoir is judged from the surface and the sensitivities of each sensitivity so as to facilitate the damage to the oil layer caused by water injection during the waterflood development.