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:
Sep. 25, 2018
Filed:
Dec. 04, 2015
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Daniel R. Dreyer, Missouri City, TX (US);
Pious Kurian, Sugar Land, TX (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/62 (2006.01); C09K 8/528 (2006.01); C09K 8/536 (2006.01); C09K 8/80 (2006.01); E21B 37/06 (2006.01); E21B 43/26 (2006.01); E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
C09K 8/528 (2013.01); C09K 8/536 (2013.01); C09K 8/62 (2013.01); C09K 8/80 (2013.01); E21B 37/06 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01);
Abstract
Compositions and methods of preparation and use for controlled release scale inhibitors used in hydraulic fracturing operations in oil and gas wells. The controlled release scale inhibitors comprise modified polyphosphate glasses having predetermined dissolution rates for controlled release of chemical inhibitors in induced hydraulic fractures in hydraulic fracturing treatment of oil and/or gas wells.