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

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · J. Pet. Technol.; (United States)

DOI:https://doi.org/10.2118/10622-PA· OSTI ID:6469176

Pabley, A S; Holcomb, D L

A recently developed high-strength crosslinked acid system involving hydrochloric acid (HCl) concentrations of 0.25 to 28% has been used in acidizing a variety of limestone and dolomite formations throughout the Rocky Mountain region. The specialized chemistry of the crosslinked acid polymer in HCl solution as well as the resultant clay stabilizing properties after the acid reacts are noted. Case histories of the well treatments using highstrength crosslinked HCl are presented along with production history before and after the cross-linked acid jobs. Data on more than 45 crosslinked acid jobs are presented. Some older wells treated with the crosslinked acid averaged a two- to sixfold oil production increase, whereas the potential of new wells was much greater than expected after the treatment was compared with neighboring wells treated conventionally, and production usually has been more sustained.

• Research Organization: SPE, Smith Energy Services.
• OSTI ID: 6469176
• Journal Information: J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 34:9; ISSN JPTJA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
CHEMICAL REACTIONS
CLAYS
COLLOIDS
CROSS-LINKING
DISPERSIONS
DOLOMITE
ENHANCED RECOVERY
GELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
MOUNTAINS
OIL WELLS
OIL YIELDS
OXYGEN COMPOUNDS
POLYMERIZATION
POLYMERS
RECOVERY
ROCKS
ROCKY MOUNTAINS
SEDIMENTARY ROCKS
STABILIZATION
WELLS
YIELDS