Improving the Microcracks Self-Repairing Capability of Oil Well Cement Stone Under Supercritical CO2 with Hydrophilic Butadiene-Acrylonitrile Polymers. - Zheng, Yong; Lou, Yixiang; Liu, Haifeng; Feng, Qian; Peng, Zhigang (Journal of Macromolecular Science: Physics, 2026)