Perry A Argabright

40394859, Aug 2, 1977

Jul 7, 1975

5/593397

Perry A. Argabright - Larkspur CO
Larry M. Echelberger - Robinson IL
Brian L. Phillips - Littleton CO

Marathon Oil Company - Findlay OH

C08F 1824
C22B 300

260 22R

Metals can be removed from aqueous solutions by contacting such solutions with a composition formed by reacting polyisocyanurate salts with synthetic resins. The resulting composition contains polyisocyanurate salt groups which act as exchange sites for removing the metals from solution. Regeneration by treatment with suitable inorganic metal salts and use of chloromethylated synthetic resins in the forming of the polymer are utilized in preferred embodiments.

46875867, Aug 18, 1987

Dec 5, 1985

6/805977

Perry A. Argabright - Larkspur CO
John S. Rhudy - Littleton CO

Marathon Oil Company - Findlay OH

C09K 300

252 8551

An on-site, in-line process and system for recovering oil from oil-bearing subterranean formations which involves the production, modification, dilution and injection of a polymer solution, preferably consisting essentially of an aqueous solution of a partially hydrolyzed polyacrylamide, having injectivity and mobility properties capable of meeting the specific permeability requirements of substantially any subterranean formation to be achieved. The polymer solutions prepared by the process and system can be used as drive fluids for displacing oil (secondary polymer flood) in an oil-bearing formation, as mobility buffers to follow micellar dispersion floods in the conjoint presence of chemical reagents in other chemical floods (e. g. , surfactant, caustic, etc. ), or they can follow a water flood.

40060985, Feb 1, 1977

Sep 13, 1974

5/505716

Perry A. Argabright - Larkspur CO
C. Travis Presley - Littleton CO
Charles B. Wenger - Denver CO

Marathon Oil Company - Findlay OH

B01J 1300
B01F 1730
B01F 1716

252312

A mixture of molecules containing all of the following groups exhibit surface activity: isocyanurate, metal-substituted isocyanurate, and at least one group selected from the class consisting of a monovalent organic radical selected from the following: isocyanate (--NCO), urethane (--NHCO. sub. 2 R'), urea (--NHCONHR'), amino (--NH. sub. 2, --NHR', or --NR. sub. 2 ').

40402584, Aug 9, 1977

Aug 16, 1974

5/498017

Perry A. Argabright - Larkspur CO
C. Travis Presley - Littleton CO

Marathon Oil Company - Findlay OH

E02D 312

61 36C

Loose particles are consolidated, e. g. , to prevent them from falling into well bores in producing wells, by contacting the loose particles with a solution having a pH above 7 containing water-soluble polymer, e. g. , polyvinyl alcohol and hydroxyethyl cellulose, and a polyisocyanurate salt and maintaining said contact for a time sufficient to cause the formation of a consolidating matrix.

47444193, May 17, 1988

Dec 9, 1986

6/939666

Robert D. Sydansk - Littleton CO
Perry A. Argabright - Larkspur CO

Marathon Oil Company - Findlay OH

E21B 33138

166270

Conformance improvement is achieved in a subterranean hydrocarbon-bearing formation using a gel comprising a high molecular weight, water-soluble, carboxylate-containing polymer, a chromium III/carboxylate complex capable of crosslinking the polymer and an aqueous solvent. The gel components are combined at the surface and injected into the desired treatment zone via a wellbore to form a continuous single-phase gel.

47786078, Oct 18, 1988

Mar 17, 1987

7/026595

Perry A. Argabright - Larkspur CO
Wayne E. Luetzelschwab - Littleton CO

Marathon Oil Company - Findlay OH

C09K 300
B66D 120
E21B 4316

252 8551

A water-soluble inorganic non-crosslinking salt is incorporated in an aqueous gel-like solution of a water-soluble uncrosslinked polymer at an initial higher polymer concentration. The salt accelerates the dilution of the polymer solution with an aqueous diluent to an aqueous polymer solution at a predetermined lower polymer concentration. The gel-like polymer solution is diluted without substantially degrading the polymer so that it retains desirable properties for use in a hydrocarbon recovery process.

45039097, Mar 12, 1985

Sep 16, 1983

6/532741

Perry A. Argabright - Larkspur CO
John S. Rhudy - Littleton CO

Marathon Oil Company - Findlay OH

E21B 4322
E21B 4900

166252

An on-site, in-line process and system for recovering oil from oil-bearing subterranean formations which involves the production, modification, dilution and injection of a polymer solution, preferably consisting essentially of an aqueous solution of a partially hydrolyzed polyacrylamide, having injectivity and mobility properties capable of meeting the specific permeability requirements of substantially any subterranean formation to be achieved. The polymer solutions prepared by the process and system can be used as drive fluids for displacing oil (secondary polymer flood) in an oil-bearing formation, as mobility buffers to follow micellar dispersion floods in the conjoint presence of chemical reagents in other chemical floods (e. g. , surfactant, caustic, etc. ), or they can follow a water flood.

40983374, Jul 4, 1978

Jul 1, 1977

5/812212

Perry A. Argabright - Larkspur CO
John S. Rhudy - Littleton CO
Brian L. Phillips - Littleton CO

Marathon Oil Company - Findlay OH

E21B 33138
E21B 4322

166270

Improved injectivity profiles and/or vertical conformance in flooding heterogeneous formations containing high permeability zones is obtained by injecting an aqueous polyacrylamide solution and an aqueous formaldehyde solution into the formation and allowing the polyacrylamide to react with the formaldehyde in the relatively high permeability zones to form a gel. Thereafter, improved sweep efficiency is realized in displacing hydrocarbon from the lesser permeability zones.