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:
Dec. 15, 2020
Filed:
May. 12, 2017
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Daniel R. Dreyer, Missouri City, TX (US);
Pious V. Kurian, Sugar Land, TX (US);
Assignee:
CHAMPIONX USA INC., Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/80 (2006.01); C09K 8/528 (2006.01); C09K 8/536 (2006.01); C09K 8/68 (2006.01); C09K 8/88 (2006.01); C09K 8/70 (2006.01);
U.S. Cl.
CPC ...
C09K 8/528 (2013.01); C09K 8/536 (2013.01); C09K 8/68 (2013.01); C09K 8/80 (2013.01); C09K 8/805 (2013.01); C09K 8/882 (2013.01); C09K 8/70 (2013.01);
Abstract
A coated particulate composition includes a vitreous polyphosphate glass particulate and a coating on at least a portion of the surface of the particulate, the coating comprising a water-insoluble polymer or a water-insoluble particulate, wherein the coating weight is about 0.01 wt % to 90 wt % of the mass of the coated particulate. The particulates provide long-term scale inhibition downhole in subterranean reservoirs where temperatures exceed 70° C.