Cementing compositions for maximum insulation

Patent · Tue Dec 26 04:00:00 EST 1967

OSTI ID:6089199

Johnson, B J; George, C R

This invention relates to cement compositions particularly useful for thermal insulation. The novel cement slurry of this invention comprises cement plus about 25-50% silica flour (based on the weight of cement) plus either vermiculite or perlite in an amount of from about 10-150% (based on the weight of cement). Preferably, the silica flour is used in an amount from about 30-40% (based on the weight of cement). The slurry also contains water in an amount effective to provide a pumpable mixture that is, water sufficient to permit handling of the slurry by the standard pumping equipment employed in the well cementing industry. Generally, the water is present in the slurry in an amount from about 10-30 gallons per sack of cement (94 lb/sack). (6 claims)

• Assignee: Halliburton Co.
• Patent Number(s): US 3360046
• OSTI ID: 6089199
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
BUILDING MATERIALS
CEMENTS
CHALCOGENIDES
DISPERSIONS
FLUID INJECTION
HYDROGEN COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPOUNDS
IRON SILICATES
MAGNESIUM COMPOUNDS
MAGNESIUM SILICATES
MATERIALS
MINERALS
MIXTURES
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
PERLITE
SILICA
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SLURRIES
SUSPENSIONS
THERMAL INSULATION
TRANSITION ELEMENT COMPOUNDS
VERMICULITE
WATER
WELL COMPLETION
WELLS