Method of fracturing a subterranean formation using delayed crosslinker compositions containing organic titanium complexes

Patent · Tue Jun 07 04:00:00 EDT 1988

OSTI ID:7134115

Hodge, R M

A method of fracturing a subterranean formation penetrated by a well is described comprising: (a) producing a gel solution by adding to an aqueous solution of an organic crosslinkable polymer: (i) a sufficient amount of a crosslinker composition to result in delayed crosslinking of the polymer, the crosslinker composition having an organic titanium complex to crosslink the polymer, an organic alpha-hydroxymonocarboxylic acid to delay crosslinking of the polymer by the titanium complex, and having a pH of no greater than 4.8; (ii) sufficient acid to result in a pH of substantially 3 to 5 in the polymer solution; (b) pumping the fracturing fluid through the well against the formation at a sufficient pressure and flow rate to create and/or extend a fracture into the subterranean formation.

• Assignee: Dowell Schlumberger Inc., Tulsa, OK
• Patent Number(s): US 4749040
• OSTI ID: 7134115
• 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)
AQUEOUS SOLUTIONS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COLLOIDS
COMMINUTION
COMPLEXES
CROSS-LINKING
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FRACTURING
FRACTURING FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GELS
HYDRAULIC FRACTURING
HYDRAULICS
MECHANICS
MIXTURES
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROLEUM
PH VALUE
POLYMERIZATION
POLYMERS
RECOVERY
SOLUTIONS
STIMULATION
TITANIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
WELL STIMULATION
WELLS