Crosslinked high strength hydrochloric acid gel system - Rocky Mountain case histories

Conference · Fri Jan 01 04:00:00 EST 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6413303

Pabley, A R; Holcomb, D L

The recently developed high strength crosslinked acid system (Patent Pending) involving hydrochloric acid concentrations of 0.25% to 28% has been utilized in acidizing a variety of limestone and dolomite formations throughout the Rocky Mountain Region. The specialized chemistry of the crosslinked acid polymer in hydrochloric acid (HC1) solution as well as the resultant clay stabilizing properties after the acid reacts are noted as well. Case histories of the well treatments utilizing high strength crosslinked hydrochloric acid are presented along with production history before and after the crosslinked acid jobs. Overall the crosslinked acid was pumped at a rate ranging from 1 BPM to 15 BPM on various jobs. Some older wells treated with the crosslinked acid, averaged a 2-6 fold oil production increase, whereas the potential of new wells was much greater than expected after the treatment as compared to neighboring wells treated conventionally and production has usually been more sustained. 11 refs.

• Research Organization: Smith Energy Serv
• OSTI ID: 6413303
• Report Number(s): CONF-820169-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ACIDIZATION
CHEMICAL REACTIONS
COLLOIDS
CROSS-LINKING
DISPERSIONS
ENHANCED RECOVERY
FEDERAL REGION VIII
GELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NATURAL GAS WELLS
NORTH AMERICA
OIL WELLS
POLYMERIZATION
RECOVERY
USA
WELLS