Extreme profile control and water shutoff polymer
1、 Application field extreme profile control and water shutoff polymer at high temperature (≥ 130 ℃) and high salinity (1.0 ~ 2.2 × 105mg/l) under the condition of interaction with organic crosslinking agent, high viscosity and high strength gel can be formed, effectively plugging the medium and high permeable channel in reservoirs, promoting the formation of fluid diversion, expanding the volume of water drive sweep, reducing water cut, increasing the output of oil wells and improving the development effect. Two. The product features good solubility, wide application range of pH, and controllable gelation time. The gel produced by reaction of products with organic crosslinking agent is resistant to high temperature, salt resistance, shear resistance and hydrolysis, and is mineralized at 130 degree temperature.