Calgon Corporation

The New Mexico Institute of Mining and Technology

Fred David Martin

Sally Lee Adams

Michael M Cook

Leonard J Persinski

Lawrence J Guilbault

Jerry E Boothe

Melvin J Hatch

Lorraine G Donaruma

Joel S Shepitka

A monomer, polymers containing the monomer, and the use of the polymer in oilfield flooding is disclosed. The subject monomer is represented by the general formula: ##STR1## wherein: n is an integer from 0 to about 4; m is an integer from 0 to about 6; a is an integer equal to at least 1 except where m is equal to 0, a must equal 0 and where m is equal to 1, a must equal 0 or 1; p is an integer from 2 to about 10; b is an integer equal to at least 1 and is of sufficient magnitude that the ratio b/p is at least 0.2; and q is an integer from 0 to 2. The number of hydroxy groups in the monomer is believed to be critical, and therefore the sum of (a+b) divided by the sum (m+p) should be at least 0.2. The moieties linked to the acrylic nitrogen can be joined to provide a ringed structure.

Oilfield flooding polymer

Methods of using aqueous hydraulic cement compositions containing polyamido-sulfonic compounds as flow-property-improving and turbulence-inducing additives are disclosed.

Method of using cementing composition having improved flow properties

Methods of using aqueous hydraulic cement compositions containing phosphonobutane tricarboxylic acid as a flow-property-improving and turbulence-inducing additive are disclosed.

Methods of using cementing compositions having improved flow properties,

Methods of using aqueous hydraulic cement compositions containing sulfonated copolymers of styrene-maleic anhydride as flow-property-improving and turbulence-inducing additives are disclosed.

Alcohols, particularly anhydrous alcohols, thickened with aminomethylated polyacrylamide, used as fracturing fluids for stimulating well production.

Thickened alcohol well treating compositions

Improved cementing compositions and their use in well cementing operations is disclosed, wherein polyvinylpyrrolidone-polyacrylamide triblock polymers are used as fluid loss additives for aqueous hydraulic cement slurries.

Low fluid loss cementing compositions containing

Aqueous hydraulic cement compositions containing polymaleic anhydride as a flow-property-improving and turbulence-inducing additive and their use in cementing wells is disclosed.

Well cementing method using cementing composition having improved flow

Aqueous hydraulic cement compositions containing phosphonobutane tricarboxylic acid as a flow-property-improving and turbulence-inducing additive and its use in cementing wells is disclosed.

Well cementing composition having improved flow properties, containing

Use of dialdehydes to maintain or increase solution viscosity of polymer compositions useful in oil recovery processes. In particular, the dialdehydes are used to maintain or enhance the effectiveness of polymers used as viscosity increasing agents in aqueous oil displacement media in the secondary and tertiary recovery of oil.

Petroleum recovery process

Use of methylolated water-soluble polymers to maintain or increase solution viscosity of polymer compositions useful in oil recovery processes.

Stabilization of polymer solutions

Aqueous hydraulic cement compositions containing sulfonated copolymers of styrene-maleic anhydride as flow-property-improving and turbulence-inducing additives and their use in cementing wells is disclosed.

Well cementing method using a composition having improved flow

Use of aminomethylated, water-soluble polymers to maintain or increase solution viscosity of polymer compositions useful in oil recovery processes.

Process for the secondary or tertiary recovery of petroleum

Use of poly (dimethylaminomethyl acrylamide) as a friction reducer for aqueous fluids flowing through a conduit, especially for the aqueous hydraulic fracturing of subterranean formations.

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McMurray, PA, United States of America

Fred David Martin