5Kent Perry, John Lee.Unconventional Gas Reservoirs-Tight Gas,Coal Seams,and Shale. Woking Document of the NPC Global Oil and Gas Study[R]. Made Available July 18,2007.
6Curtis J B. Fractured Shale-gas Systems [J]. AAPG Bulletin, 2002,86(11 ) : 1921-1938.
7Montgomery S L, Jarvie D M,Bowker K A,et al. Missiissippian Barnett Shale,Fort Worth Basin,North-central Texas: Gas-shale Play with Multi-trillion Cubic Foot Potential [J] AAPG Bulletin, 2005,89(2) : 155-175.
8Bustin R M. Gas Shale tapped for Big Pay [J]. AAPG Explorer, 2005,26 ( 2 ) : 5-7.
9Bowker K A. Barnett Shale Gas Production,Fort Worth Basin: Issues and discussion [J]. AAPG Bulletin,2007,91 (4) : 523-533.
10James w Schmoker. Resoure-assessment Perspectives for Unconventional Gas Systems [J ]. APPG Bulletin, 2002,86 (11 ) : 1993-1999.
