Abstract

Investigation of gel polymer as the water shut off in oil reservoirs

Author(s): Milad Jadidoleslami,Ali Rahimi, Farshad Farahbod

Today, the use of gel polymerto prevent water production in oil and gas wells is used extensively and many studies have been done in this field. The present study is an investigation of the gels, which are used in industry and in continuing the hydrolyzed polyacrylamide (PHPA) with cross-link of chromium acetate ( was examined as the most used and cheapest gel polymer in the industry. The effect of the hydrolyzed polyacrylamide (PHPA) concentration on the time and strength of gel is studied. The Increase of PHPA concentration andcross-link increase the gel strength thereby the gel time is reduced correspondingly. Moreover the impact of reservoir factors on the structure and the gel time is evaluated, temperature as the most influential factor of reservoir causes the gel being made faster with shorter times. In addition the impact of pH, pressure and salinity on the gel time is studied. The results show the use of PHPA with cross-link of chromium acetate (III) is an effective method in reducing water generation.