Successful stimulation in the Cotton Valley sandstone: a low permeability reservoir

Conference · Wed Jan 01 04:00:00 EST 1975

OSTI ID:5749424

Jennings, Jr, A R; Sprawls, B T

Halliburton Services has successfully fractured the very low-permeability and -porosity Cotton Valley sandstone formation in east Texas and north-central Louisiana with a hydraulic-fracturing method using a moderately viscous, temperature-stable, aqueous-gel system. The best treatment results for stimulating this deep (8000 to 12,000 ft), high-temperature (230 to 280/sup 0/F) reservoir were obtained with nonresidue fluids carrying high sand concentrations to lengths in excess of 40% of the drainage radius (750 to 1500 ft). In very tight zones, where fracturing-fluid retention was a problem, low-surface-tension surfactants and carbon dioxide helped improve fluid recovery.

• OSTI ID: 5749424
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900* -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COMMINUTION
FRACTURING
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
LOUISIANA
NATURAL GAS DEPOSITS
NORTH AMERICA
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SOUTHWEST REGION
SURFACTANTS
TEXAS
USA
WELLS