水锁与水敏的区分认识及综合实验设计

Research and Exploration in Laboratory(2023)

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Abstract
设计用于区分认识储层水敏伤害与水锁伤害的综合性实验,通过岩心矿物分析、微观形貌观察、润湿性测定与孔喉分布特征对储层潜在水敏与水锁程度进行评判;开展水锁伤害与水敏伤害岩心流动实验,评价储层伤害程度.综合分析潜在损害因素与实际实验结果,区分水敏与水锁伤害的实际影响权重.结果表明,岩心矿物组分、微观结构形貌、润湿性与孔喉分布特征分析是准确区分认识水敏与水锁的前提;敏感性实验评价得到的水敏伤害比实际高,储层伤害主控因素是水敏的评判结果往往是片面的,真实主控因素更可能为水锁.该综合实验可为石油工程专业相关课程的实验设置提供借鉴.
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Key words
water sensitive damage,water lock damage,distinguishing recognition,experiment design
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