Self-acidifying treating fluid positioning process
Patent
·
OSTI ID:6922018
A method of positioning of a treating fluid, such as an acidifying or particle-carrying fluid, in a subterranean location is described. A viscous aqueous solution that contains a cellulose ether, a fluoride salt, and a relatively slowly reactive acid-yielding material is injected into a borehole and subsequently becomes a substantially nonviscous weakly acidic liquid that is capable of dissolving silica.
- Assignee:
- Shell Oil Co.
- Patent Number(s):
- US 3868998
- OSTI ID:
- 6922018
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
AQUEOUS SOLUTIONS
BOREHOLES
CAVITIES
CHALCOGENIDES
CHEMICAL COMPOSITION
DISPERSIONS
DISSOLVERS
GEOLOGIC FORMATIONS
MINERALS
MIXTURES
OIL WELLS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLUTIONS
VISCOSITY
WELLS
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
AQUEOUS SOLUTIONS
BOREHOLES
CAVITIES
CHALCOGENIDES
CHEMICAL COMPOSITION
DISPERSIONS
DISSOLVERS
GEOLOGIC FORMATIONS
MINERALS
MIXTURES
OIL WELLS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLUTIONS
VISCOSITY
WELLS