Aqueous drilling fluid additive

Details Aqueous drilling fluid additive Aqueous drilling fluid additive

1980-03-18

1982-01-05

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252 85C, 526240, C08L 3302

Patent

active

043093299

ABSTRACT:
The invention relates to an aqueous solution of a filtration control agent for utilization in said aqueous drilling fluid, useful in a method of forming a filter cake on the wall of a well for the reduction of filtrate from said drilling fluid, which is effective at high temperatures and pressures, the terpolymer consisting essentially of: (1) an alkali metal acrylate units; (2) hydroxyalkyl acrylate units; and (3) acrylamide.

REFERENCES:
patent: 2552775 (1951-05-01), Fischer et al.
patent: 3726812 (1973-04-01), Higashimura et al.
patent: 3758449 (1973-09-01), Hoppe et al.
patent: 3764530 (1973-10-01), Burland et al.
patent: 3970633 (1976-07-01), Miller et al.

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