Scale and corrosion inhibitors for high temperature and pressure conditions
First Claim
1. A method for inhibiting corrosion of metal in contact with an aqueous system and/or inhibiting scale formation in the aqueous system, said method comprising adding to the aqueous system an effective amount of a polymer composition comprising polymerized units derived from:
- a) 1% to 100%, by weight, of a phosphorus-containing amide monomer having the general formula;
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Abstract
The present invention relates to a method for inhibiting scale and corrosion in aqueous systems, for example, under high temperature and pressure conditions such as temperatures up to 250° C. and/or pressures up to 10000 psi (i.e., about 68.9 MPa). The method involves providing polymer compositions comprising 1% to 100% by weight of a phosphorus-containing amide monomer to such aqueous systems, which arise, for example, in connection with oilfield operations and some water treatment applications.
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15 Claims
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1. A method for inhibiting corrosion of metal in contact with an aqueous system and/or inhibiting scale formation in the aqueous system, said method comprising adding to the aqueous system an effective amount of a polymer composition comprising polymerized units derived from:
a) 1% to 100%, by weight, of a phosphorus-containing amide monomer having the general formula; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
Specification