Thermally responsive aqueous silicate mixtures and use thereof

Patent · Tue Feb 03 00:00:00 EST 1987

OSTI ID:6823181

Smith, W H; Vinson, E F

A method is described of plugging or sealing a zone in a subterranean formation comprising: (a) contacting the zone with an aqueous silicate composition consisting essentially of (i) an aqueous solution containing an alkali metal silicate; and, (ii) a thermally responsive gelation activator selected from the group consisting of lactose, dextrose, fructose, galactose, mannose, mantose, xylose and mixtures thereof; and (b) activating the gelation activator in response to a thermal change in the composition within the formation whereby the silicate composition is caused to form a gel in the zone.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4640361
• OSTI ID: 6823181
• Resource Relation: Patent File Date: Filed date 13 Dec 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
PLUGGING
OIL WELLS
PLUGGING AGENTS
CHEMICAL COMPOSITION
ALKALI METALS
AQUEOUS SOLUTIONS
FRUCTOSE
GALACTOSE
GELATION
GELS
LACTOSE
MANNOSE
MIXTURES
SEALS
SILICATES
TEMPERATURE EFFECTS
XYLOSE
ALDEHYDES
CARBOHYDRATES
COLLOIDS
DISACCHARIDES
DISPERSIONS
ELEMENTS
HEXOSES
KETONES
METALS
MONOSACCHARIDES
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PENTOSES
SACCHARIDES
SILICON COMPOUNDS
SOLUTIONS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing