Analysis on the influencing factors of imbibition and the effect evaluation of imbibition in tight reservoirs

YANG Zhengming,LIU Xuewei,LI Haibo,LEI Qihong,LUO Yutian,WANG Xiangyang

Table 2 Imbibition performance of cores with different wettability.

Wettability Oil recovery by imbibition/% Wettability Oil recovery by imbibition/% Strongly water-wet 19.12 Neutral 11.57 Weakly water-wet 15.23 Strongly oil-wet 2.82