Subterranean formation treating with delayed crosslinking gel fluids

Patent · Tue Jan 24 04:00:00 EST 1989

OSTI ID:6161425

Harris, P C; Sandy, J

A method is described of treating a subterranean formation comprising: (a) preparing an aqueous gel by admixing an organic carboxylated gelling agent with an aqueous liquid; (b) combining a buffer with the aqueous gel in an amount sufficient to result in and maintain the pH thereof at a level of about 5 or above at ambient temperature; (c) combining a zirconium IV-containing crosslinking compound with the aqueous gel in an amount sufficient to result in the delayed crosslinking of the gel; and (d) introducing the aqueous gel mixture formed in step (c) into the subterranean formation whereby the mixture is heated by the formation and thereby caused to crosslink therein.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4799550
• OSTI ID: 6161425
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
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Plowshare-- (-1989)
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COLLOIDS
COMMINUTION
CROSS-LINKING
DISPERSIONS
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FRACTURING
FRACTURING FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GELS
HYDRAULIC FRACTURING
METALS
MIXTURES
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLYMERIZATION
RECOVERY
SOLUTIONS
STIMULATION
TRANSITION ELEMENTS
WELL STIMULATION
WELLS
ZIRCONIUM