4Holditch S A. Tight gas sands[R]. SPE 103356,2006.
5Economides M J, Martin T. Modern fracturing-enhancing natu- ral gas production[M]. Houston, TX : Energy Tribune Publishing Inc., 2007.
6Baihly J D, Malpani R,Jian Xu, et al. A comprehensive comple tion study of recent cotton valley sand well production to opti mize future designs[R]. SPE 144-412,2011.
7Khlaifat A L, Hani Q, Naierm B, et al. Tight gas sands develop ment is critical to future world energy resources[R]. SPE 142049, 2011.
8McCain W D,Voneiff G W, Holditch S A, et al. A tight gas field study: Carthage(Cotton Valley) Field[R]. SPE 26141,1993.
9Ahmed S,Ahmed A,Lee R. Overview of tight gas field develop ment in the middle east and north africa region[R]. SPE 126181, 2010.
10Fast C R, Holman G B,Cavlin R J. The application of MHF to the tight muddy "J" formation Wattenberg field, Colorado[R]. SPE 7612,1976.V.
