2Qingzhi Wen,Shicheng Zhang,Lei Wang,Yongshan Liu,Xianping Li.The effect of proppant embedment upon the long-term conductivity of fractures[J]. Journal of Petroleum Science and Engineering . 2006 (3)
3P.S. Hammond.Settling and slumping in a Newtonian slurry, and implications for proppant placement during hydraulic fracturing of gas wells[J]. Chemical Engineering Science . 1995 (20)