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US 2012/0211434 A1Published application
Use of pvpp to remove contaminants from produced water of an oil or gas well
AssigneeISP Investments Inc.
InventorRobert Gibbison
Life of this patent
Estimating the term…
Abstract
A method of removing contaminants from produced water of an oil or gas well comprising the step of contacting the produced water with polyvinylpolypyrrolidone (PVPP) to remove the contaminants from the water.
Claims7
A method of removing contaminants from produced water of an oil or gas well comprising the step of contacting said produced water with polyvinylpolypyrrolidone (PVPP) to remove said contaminants from said water.
Dependencies are inferred from the claim text.