The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2001
Filed:
Feb. 15, 1999
James C. T. Chen, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
The present invention provides a system and method for enhancing hydrocarbon production from a subsurface hydrocarbon-bearing formation. The system includes a mechanical fluid treatment unit that substantially reduces the concentration of precursor ions from the injection water. The treated water is injected under pressure into an injection well to cause the hydrocarbons to flow toward a production well. A chemical unit injects selected amounts of additives into the injection well to inhibit in-situ growth of crystals from insoluble salt precipitates formed due to the interaction of precursor ions present in the injected water and ions residents in the reservoir. The selected chemicals and their respective amounts are determined at least partially based on reservoir characteristics and the concentration of precursor ions in the treated water.