Composition and process for cross-linking macromolecular polysaccharide solutions
Patent
·
OSTI ID:6497637
A cross-linking agent for macromolecular polysaccharide materials consists essentially of a chelating composition formed from (1) an organic polyelectrolyte ligand component, and (2) a component of a metal of the first series of the transition elements of the Periodic Table. This cross-linking agent has been found to provide enhanced rheological properties without obtaining metal ion overtreatment characteristics. In a preferred form, the cross-linking agent also includes a compound containing a metal from Group II of the Periodic Table. The cross-linked materials may be utilized in fracturing fluids, drilling fluids, etc. (4 claims)
- Assignee:
- Milchem Inc
- Patent Number(s):
- US 3753971
- OSTI ID:
- 6497637
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
CARBOHYDRATES
CHELATING AGENTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CROSS-LINKING
DRILLING FLUIDS
FLUIDS
FRACTURING FLUIDS
ORGANIC COMPOUNDS
POLYMERIZATION
POLYSACCHARIDES
SACCHARIDES
020300 -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
CARBOHYDRATES
CHELATING AGENTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CROSS-LINKING
DRILLING FLUIDS
FLUIDS
FRACTURING FLUIDS
ORGANIC COMPOUNDS
POLYMERIZATION
POLYSACCHARIDES
SACCHARIDES