The Jurassic aged Cotton Valley Sands and overpressured Bossier Sands can be effectively drilled using air and/or nitrogen methods, logged, completed and open hole stimulated without ever exposing the wellbore to potentially harmful drilling fluids. This in turn increases well productivity and offers considerable cost savings to the standard mud and liner setting techniques.

Keywords:
cotton valley lower, sandstone, sand concentration, panola county, procedure, hydraulic fracturing, upstream oil & gas, net pressure, society of petroleum engineers, texas
Subjects:
Drilling Operations, Pressure Management, Drilling Fluids and Materials, Hydraulic Fracturing, Reservoir Characterization, Formation Evaluation & Management, Well control, Completion Installation and Operations
Copyright 1986, Society of Petroleum Engineers
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