JFM暂堵剂性能评价与应用

Tang Shanfa, Cai Muping:PROPERTIES EVALUATION OF TEMPORARY PLUGGING AGENT-JFM AND ITS APPLICATION

实验研究了ＪＦＭ暂堵剂的油溶性，在携带液中的悬浮稳定性和对产出液油水界面张力的影响；评价了ＪＦＭ暂堵液对不同渗透率人造岩心的暂堵、解堵能力；证明ＪＦＭ可较好地应用于负压油井的暂堵洗井、冲砂与酸化转向施工．现场暂堵洗井、冲砂６井次，工艺成功率达１００％，暂堵有效率达８４％，明显缩短施工时间，减轻洗井液对产层的损害，大大提高了油井施工生产效果，具有稳产增油作用，有广泛的推广应用前景．

The oil-solubility,suspension stability in carrying liquid and the effect on oil/water interface tension of produced liquid of JFM were studied,and its temporary plugging capability, plug removal ability of JFM temporary plugging liquid to artificial cores with different permeability were evaluated.It is proved that JFM can be better applied in well washing,sand washing and acidization diverting in underbalance oil wells.Six field temporary plugging and well cleanout and sand washing operations were conducted,the success ratio was 100%,temporary plugging rate was 84%.They had significantly reduced operation time and the damage of flushing fluid to payzone,largely enhanced production.It has wide application prospect.