New method of acidizing or acid fracturing: crosslinked acid gels

Conference · Tue Jan 01 04:00:00 EST 1980 · Proc. Annu. Southwest. Pet. Short Course; (United States)

OSTI ID:6368263

Pabley, A S; Holcomb, D L

Acid polymer gels having pH less than one have been crosslinked for retarding the chemical and physical activity of hydrochloric acid on calcareous formations. Hydrochloric acid concentrations from .0025 to 28% have been successfully crosslinked. This stimulation fluid offers high viscosity with adequate shear stability, perfect support for proppants, and clay stabilization. Additionally, the fluid provides effective fluid loss control and retardation of acid reaction enabling live acid to penetrate deeper into the formation for better formation conductivity and practically a residue-free break for rapid clean-up of the well after the job. Results of lab and field tests show the acid crosslinked system to be an effective stimulation fluid for acidizing and acid fracturing in calcareous and sandstone formations having low formation permeability.

• OSTI ID: 6368263
• Conference Information: Journal Name: Proc. Annu. Southwest. Pet. Short Course; (United States) Journal Volume: 27
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ACIDIZATION
CALCINATION
CHEMICAL REACTIONS
COMMINUTION
DECOMPOSITION
FEDERAL REGION VI
FRACTURING
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
OIL WELLS
PETROLEUM DEPOSITS
PYROLYSIS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SOLUBILITY
STIMULATION
TEXAS
THERMOCHEMICAL PROCESSES
USA
WELL STIMULATION
WELLS