During the course of exploitation in oil reservoir and gas reservoir condensation water, formation water, especially drilling mud, acidizing liquid and fracturing fluid can result in water blocking.

• 在油、气藏的开发过程中,由于凝析水、地层水特别是钻井液、酸化液和压裂液将导致储层水锁,从而严重影响低渗透储层的渗透率。