METHODS FOR IMMEDIATE SOURING CONTROL IN GASES OR FLUIDS PRODUCED FROM SULFIDOGENIC RESERVOIR SYSTEMS

摘要

The present disclosure relates to methods of controlling the sulfide (S2−) content in gases or fluids produced from sulfidogenic reservoir systems, such as oil reservoirs, by inducing authigenic mineral-precipitating bacteria to precipitate sulfide-scavenging authigenic rock material in the production well environment.

主权项

1. A method of decreasing one or more sulfide containing compounds in a gas or fluid produced from a sulfidogenic reservoir system, the method comprising:
a) providing a sulfidogenic reservoir system comprising a production well, and a production well environment, wherein the production well environment further comprises authigenic mineral precipitating bacteria, a rock matrix and a gas or fluid; b) providing an authigenic mineral precursor solution and an authigenic mineral-precipitation inducer; and c) contacting the production well environment with the authigenic mineral precursor solution and the authigenic mineral-precipitation inducer under conditions whereby the inducer induces the bacteria to precipitate an authigenic mineral from the solution into the rock matrix, wherein the precipitated authigenic mineral scavenges one or more sulfide containing compounds from the gas or fluid in the production well environment,
thereby decreasing the amount of the one or more sulfide-containing compounds in the gas or fluid produced from the sulfidogenic reservoir system.