Sand consolidation methods
This patent describes a method for consolidating unconsolidated mineral particles including sand in a subterranean petroleum formation penetrated by a well in fluid communication with at least a portion of the formation. It comprises: providing a sand consolidating fluid comprising a polymerizable monomer, diluent for the monomer, and a nonvolatile strong acid catalyst capable of causing polymerization of the monomer at fluid injection temperatures; mixing the sand consolidating fluid with steam to form a multiphase treating fluid; injecting the treating fluid into the formation to occupy the void space of at least a portion of the formation adjacent to the well; and allowing the injected fluids to remain in the formations for a period of time sufficient to accomplish at least partial polymerization of the monomer, forming a permeable consolidated mass around the wellbore. Also described is a method for forming a fluid impermeable zone in a permeable, subterranean oil-containing formation adjacent to a wellbore penetrating the formation.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- A; US 4903770
- Application Number:
- PPN: US 7-357571A
- OSTI ID:
- 6843911
- Country of Publication:
- United States
- Language:
- English
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Sand consolidation methods
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Related Subjects
020300* -- Petroleum-- Drilling & Production
AMMONIA
CARBON COMPOUNDS
CARBONATES
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OIL WELLS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
RECOVERY
RESERVOIR ROCK
STEAM INJECTION
STIMULATION
THERMAL RECOVERY
WELL STIMULATION
WELLS