Patent ID: 8585899

Claim:
A process for remediation of souring caused by hydrogen sulfide in oil, gas and coalbed reservoirs comprising, providing a water pond or storage vessel or vessels, adding a solution or solutions of bacteriophages virulent for target bacteria to water in the provided pond or storage vessel and adding an effective amount of the water containing bacteriophage virulent for target bacteria from the pond or storage vessel into a reservoir wherein target bacteria are those identified as existing in the water of the pond or storage vessel by the procedure comprising: a. Identifying target bacteria producing hydrogen sulfide from a sample or samples of the water to be used in hydrofracturing operation; b. Culturing target bacterial strains from the sample; c. Locating and isolating virulent phages for target bacteria so identified; d. Preparing suitable quantity of identified phage multi-panel to treat the water in the pond or storage vessel.