Kinetic rate expressions for reactions of selected minerals with HCL and HF mixtures
Conference
·
· Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:7094469
The chemical kinetics of solid-liquid reactions were studied for different mud acid-mineral systems in a rotating disk apparatus. The minerals studied included calcite, dolomite, microcline, and albite. The kinetic rate equations, regimes of diffusion and reaction control, and possible mechanisms of dissolution are presented for these various minerals. A temperatures above 100/sup 0/C, the rotating disk rate data show that the rate of reaction of HCl with dolomite is controlled by the mass transport of HCl to the dolomite surface. The HCl-dolomite reaction becomes surface reaction controlled at temperatures below 100/sup 0/C. At the conditions existing in petroleum reservoirs, the HCl-calcite reaction can be considered controlled exclusively by mass transport of HCl. The feldspar-mud acid reaction rate results reveal that the dissolution of feldspars is surface reaction rate limited and depends on both the HF and HCl concentrations in the mud acid. (33 refs.)
- Research Organization:
- Michigan Univ
- OSTI ID:
- 7094469
- Report Number(s):
- CONF-7305137-
- Conference Information:
- Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-4348
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
ACIDIZATION
ALBITE
ALKALINE EARTH METAL COMPOUNDS
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHEMICAL REACTION KINETICS
DOLOMITE
ENGINEERING
FELDSPARS
HYDROCHLORIC ACID
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MICROCLINE
MINERALS
OXYGEN COMPOUNDS
REACTION KINETICS
RESERVOIR ENGINEERING
SILICATE MINERALS
400201* -- Chemical & Physicochemical Properties
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
ACIDIZATION
ALBITE
ALKALINE EARTH METAL COMPOUNDS
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHEMICAL REACTION KINETICS
DOLOMITE
ENGINEERING
FELDSPARS
HYDROCHLORIC ACID
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MICROCLINE
MINERALS
OXYGEN COMPOUNDS
REACTION KINETICS
RESERVOIR ENGINEERING
SILICATE MINERALS