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.

Date of Patent:
Mar. 31, 2015

Filed:

Dec. 20, 2011
Applicants:

Rajesh K. Saini, Cypress, TX (US);

Jeremy Holtsclaw, Lawton, OK (US);

David M. Loveless, Duncan, OK (US);

Lucas K. Fontenelle, Norman, OK (US);

Prajakta R. Patil, Pune, IN;

Ramesh Muthusamy, Dharmapuri District, IN;

Inventors:

Rajesh K. Saini, Cypress, TX (US);

Jeremy Holtsclaw, Lawton, OK (US);

David M. Loveless, Duncan, OK (US);

Lucas K. Fontenelle, Norman, OK (US);

Prajakta R. Patil, Pune, IN;

Ramesh Muthusamy, Dharmapuri District, IN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/52 (2006.01); C09K 8/12 (2006.01); C09K 8/68 (2006.01); C09K 8/74 (2006.01); E21B 21/06 (2006.01); C02F 1/28 (2006.01); C02F 1/68 (2006.01); C02F 5/08 (2006.01); C02F 101/10 (2006.01); C02F 101/20 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
C09K 8/12 (2013.01); C09K 8/52 (2013.01); C09K 2208/32 (2013.01); C09K 8/685 (2013.01); C09K 8/74 (2013.01); E21B 21/068 (2013.01); C09K 2208/26 (2013.01); C02F 1/288 (2013.01); C02F 1/683 (2013.01); C02F 5/08 (2013.01); C02F 2101/108 (2013.01); C02F 2101/20 (2013.01); C02F 2103/365 (2013.01);
Abstract

The present invention relates to environmentally friendly compositions and methods for removing or suppressing metal ions in waters, flowback waters, and produced waters to make such waters suitable for subsequent use in oil-field applications and for delinking metal cross-linked gelling agents. One embodiment of the present invention provides a method of providing a competitive binder and allowing the competitive binder to interact with interfering metal ions in a flowback fluid to suppress or remove interfering metal ions.


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