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1、Hydraulic Fracturing in Shale Gas PlaysDavid DunlapBJ Services CompanyJune 2007,Defined by particle size - finest grained clastic rocks; predominantly clay-sized particlesClay - 63 micronsContain free gas and adsorbed gasZone thickness can be significantExtremely tight (low permeability)Shale-.0001
2、.000001 mdTight Sand-.01 .001 mdAre currently or have been naturally fractured,Gas Shale Characteristics,Shales in SEM & Thin Section,Horizontal Wellbore,Barnett Shale Cum Production,Barnett Shale Horizontals vs Verticals,Cross Linked Fluids Slickwater Fluids Horizontal Wells “Simo” Fracs Ultra Ligh
3、t Weight Proppants,“Game Changing” Technology,SIMO Fracturing Operations,SIMO Fracturing Operations,Specific GravityLite Prop - 1.25 to 1.75Sand- 2.65Easily transported to extremities of fracturenetworkEnables the use of lower viscosity, lessdamaging fluidsINCREASED INITIAL AND CUMULATIVE PRODUCTION,Ultra Light Weight Proppants,Light Weight Proppants,Hydraulic Fracturing in Shale Gas PlaysDavid DunlapBJ Services CompanyJune 2007,
