Kinetics of quartz alkaline dissolution in clayey sandstones
The dissolution of minerals constitutive of sandstone rocks is one of the points to be evaluated for numerous oil production processes where the use of alklaline agents can be considered: alkaline flooding, surfactant flooding, polymer flooding. Alkaline agents have been also set forth to prevent well bore damage. It has been shown that at moderate temperature, quartz, among the numerous minerals constituting clayey sandstones, could be the determining species as far as dissolution is concerned. In this paper the particular influence of the aluminum appearing during the alkaline dissolution of such sandstones is specified. The influence of pH and contact time is examined by means of dissolution experiments, in which solubilized silicon and aluminum concentrations are measured. The interpretation of the experimental results is proposed with a tentative model. This model takes into account a kinetic scheme for the quartz dissolution-condensation, involving the silicon and aluminum adsorption equilibria.
- Research Organization:
- Institut Francais du Petrole, Rueil-Malmaison (FR)
- OSTI ID:
- 6728293
- Report Number(s):
- CONF-880659-
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 33:1; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Migration of alkaline pulses in reservoir sands
Effect of silicate and aluminate ion adsorption on the reaction of quartz and alumina with caustic solution
Related Subjects
020300* -- Petroleum-- Drilling & Production
ACID NEUTRALIZING CAPACITY
ADSORPTION
ALUMINIUM
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMISTRY
DATA
DISPLACEMENT FLUIDS
DISSOLUTION
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FORMATION DAMAGE
INFORMATION
KINETICS
METALS
MINERALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
QUARTZ
REAGENTS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SILICON COMPOUNDS
SILICON OXIDES
SOLUBILITY
SORPTION
STIMULATION
TECHNOLOGY ASSESSMENT
WATER CHEMISTRY
WELL STIMULATION