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:
May. 24, 2022
Filed:
May. 17, 2019
Applicant:
Carbo Ceramics Inc., Houston, TX (US);
Inventors:
Todd Roper, Katy, TX (US);
Thu Lieng, Richmond, TX (US);
Olatunji Orekha, Houston, TX (US);
William Scott Woolfolk, Maurice, LA (US);
Assignee:
CARBO CERAMICS INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/80 (2006.01); E21B 43/26 (2006.01); E21B 43/267 (2006.01); E21B 43/04 (2006.01);
U.S. Cl.
CPC ...
C09K 8/805 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01); E21B 43/04 (2013.01);
Abstract
Lightweight proppant particles are disclosed. The lightweight proppant particle can include a proppant particle having an apparent specific gravity of at least about 1.5 g/cc, a coating of a hydrophobic material formed on an outer surface of the proppant particle, and a coating of an amphiphilic material formed on an outer surface of the coating of the hydrophobic material.