红庄油田三垛组地层的敏感性特征分析

摘要

Through core flow experiments, the evaluation of reservoir sensitivity in Hongzhuang oil field is developed, and the damage mechanism is found, which provides references to reservoir protection and promotion. The reservoir sensitivities are negative-medium weak flow sensitivity, medium weak-medium strong water sensitivity, negative-medium weak acid sensitivity, weak-strong alkali sensitivity and medium weak salt sensitivity at Duoyi formation; strong velocity sensitivity, negative water sensitivity, negative acid sensitivity, negative salt sensitivity at Duoer formation.%通过岩心流动实验,对红庄油田储层的敏感性作系统评价,揭示其特征及损害机理,为制定各项储层保护与改造措施提供科学依据.红庄油田储层的敏感性总体为:垛一段地层无-中等偏弱速敏、中等偏弱-中等偏强水敏、无-中等偏弱酸敏、弱-强碱敏、中等偏弱盐敏,垛二段地层强速敏、无水敏、无酸敏、无盐敏.在实施各类入井液方案时,应充分考虑到上述各类敏感性,针对各层位不同的敏感性特征制定不同的策略,以切实保护储层.