Back to results
US 2017/0283685 A1Published application
Specific inhibitors of (per)chlorate respiration as a means to enhance the effectiveness of (per)chlorate as a souring control mechanism in oil reservoirs
AssigneeThe Regents of the University of California
InventorJohn D. COATES
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to methods of controlling souring in systems, and more specifically to methods of using chlorine oxyanions and inhibitors of (per)chlorate respiration to control souring in a system.
Claims30
A method for controlling souring, the method comprising:
- a) providing a system comprising one or more sulfate-reducing microorganisms and one or more (per)chlorate-reducing bacteria;
- b) contacting the system with a composition comprising one or more chlorine oxyanions, or one or more precursor compounds which yield one or more chlorine oxyanions, wherein the chlorine oxyanions are present in the system at a concentration sufficient to inhibit souring in the system;
- and
- c) contacting the system with a composition comprising an inhibitor of (per)chlorate respiration, wherein the inhibitor of (per)chlorate respiration is present in the system at a concentration sufficient to inhibit (per)chlorate respiration by the one or more (per)chlorate-reducing bacteria, wherein (per)chlorate consumption is reduced and souring is inhibited in the system.
1 more element
A method for controlling souring, the method comprising:
- a) providing a system comprising one or more sulfate-reducing microorganisms;
- b) contacting the system with one or more compounds selected from the group consisting of bromate, iodate, and periodate, wherein the one or more compounds are present in the system at a concentration sufficient to inhibit souring in the system.
Dependencies are inferred from the claim text.