Field Experiment on Cyclic Waterflooding in Shuanghe Oilfield

Cyclic waterflooding is an effective hydrodynamic method to improve oilfield development effects. Cyclic waterflooding experimental results and development characteristics are analyzed in conjuncton with the geological features of IV 4 series of strata in Shuanghe oilfield. Five wells are put into field experiment with the maximum incremental unit daily output of 21t and the minimum total water cut decrease of 2 percentage. The annual output of the affected producers corresponding with cyclic water injectors is 6027t higher than that of conventional waterflooding and annual water Cut increasing ratio is 1 percentage lower than that before experiment.