A New Thickener for CO2 Anhydrous Fracturing Fluid Jian Zhang, Bo Xiao, Guoxiang Zhang, Wenhao He, Guang Yang, Tieya Jing, Shuo Jin and Zhiguo Zhao MATEC Web of Conferences, 31 (2015) 01002 Published online: 23 November 2015 DOI: 10.1051/matecconf/20153101002