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:
Oct. 28, 2014
Filed:
Jun. 04, 2010
Paul Rey, Coraopolis, PA (US);
Susan Rey, Coraopolis, PA (US);
David Grottenthaler, McDonald, PA (US);
Paul Rey, Coraopolis, PA (US);
Susan Rey, Coraopolis, PA (US);
David Grottenthaler, McDonald, PA (US);
Kroff Chemical Company, Pittsburgh, PA (US);
Abstract
Methods of treating flowback water from a subterranean formation penetrated by a well bore are provided, comprising: (a) providing remediated flowback water having a ferrous iron (Fe) ion concentration of less than about 100 milligrams of ferrous iron ion per liter of flowback water, a barium ion (Ba) concentration of less than about 500 milligrams of barium ion per liter of flowback water, and a calcium ion (Ca) concentration of at least about 1,000 milligrams of calcium ion per liter of remediated flowback water; and (b) treating the flowback water with: (i) at least one friction reducing agent; and (ii) at least one scale formation inhibiting agent and/or at least one iron precipitation control agent to provide treated flowback water which can be reused as fracturing fluid in a well drilling operation.