Drilling fluid containing a copolymer filtration control agent
Patent
·
OSTI ID:5879270
The invention relates to an aqueous drilling fluid composition, a filtration control agent for utilization in said aqueous drilling fluid, and a method of forming a filter cake on the wall of a well for the reduction of filtrate from said drilling fluid, by utilization of a copolymer of: (1) a (Meth) acrylamido alkyl sulfonic acid or alkali metal salt thereof; and (2) a (Meth) acrylamide or n-alkyl (Meth) acrylamide. The copolymer may be cross-linked with a quaternary ammonium salt cross-linking agent.
- Assignee:
- Milchem Inc
- Patent Number(s):
- US 4293427
- OSTI ID:
- 5879270
- Resource Relation:
- Patent File Date: Filed date 18 Mar 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
DRILLING FLUIDS
CHEMICAL COMPOSITION
FILTRATION
WELL DRILLING
ACRYLAMIDE
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
COPOLYMERS
CROSS-LINKING
FILTERS
SULFONIC ACIDS
AMIDES
CHEMICAL REACTIONS
DISPERSIONS
DRILLING
FLUIDS
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
SEPARATION PROCESSES
SOLUTIONS
420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
DRILLING FLUIDS
CHEMICAL COMPOSITION
FILTRATION
WELL DRILLING
ACRYLAMIDE
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
COPOLYMERS
CROSS-LINKING
FILTERS
SULFONIC ACIDS
AMIDES
CHEMICAL REACTIONS
DISPERSIONS
DRILLING
FLUIDS
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
SEPARATION PROCESSES
SOLUTIONS
420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)