Control of cross-linking reaction rate of aqueous fracturing fluids

Patent · Tue Apr 01 04:00:00 EST 1986

OSTI ID:5848201

Payne, K L

A composition of matter which initiates a time controlled cross-linking reaction of aqcueous polysaccharide fracturing fluid is described. The composition consists of: an aqueous solution of a cross-linking compound which supplies ions of transition metals selected from the group consisting of zirconium, hafnium, chromium, and titanium in a cross-linking time controller elected from polyamine cross-linking rate accelerators which control the rate at which the cross-linking compound promotes cross-linking of the polysaccharide. A method of controlling the cross-linking reaction of an aqueous fracturing fluid in fracturing of subterranean formations which comprises: mixing in an aqueous solution a polysaccharide gelling agent, a cross-linking compound which supplies ions of transition metals consisting of the group consisting of zirconium, hafnium, chromium, and titanium and a cross-linking rate controller elected from polyamine cross-linking rate accelerators to control the rate at which the cross-linking compound cross-links with the polysaccharide gelling agent.

• Assignee: Big Three Industries, Inc., Houston, TX
• Patent Number(s): US 4579670
• OSTI ID: 5848201
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
AMINES
AQUEOUS SOLUTIONS
CARBOHYDRATES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
COMMINUTION
CROSS-LINKING
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FRACTURING
FRACTURING FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HAFNIUM COMPOUNDS
HYDRAULIC FRACTURING
KINETICS
MIXING
MIXTURES
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
PETROLEUM
POLYMERIZATION
POLYSACCHARIDES
REACTION KINETICS
RECOVERY
REFRACTORY METAL COMPOUNDS
SACCHARIDES
SOLUTIONS
STIMULATION
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WELL STIMULATION
WELLS
ZIRCONIUM COMPOUNDS