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:
Aug. 14, 2018
Filed:
Oct. 31, 2013
Weatherford Technology Holdings, Llc, Houston, TX (US);
Marcelo Comarin, Bogota, CO;
Maria F. Paramo G, Houston, TX (US);
Fred Donham, Houston, TX (US);
David P. Kippie, Houston, TX (US);
Shawn Lu, Houston, TX (US);
Michael C. Barry, Houston, TX (US);
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
Drilling fluids were developed including a base fluid, a weighting agent and/or a bridging agent, and a thickening agent, where the weighting agent and/or the bridging agent includes a particulate strontium carbonate having a desired distribution, for weighting agents, the distribution includes particles between 2μ and 5000μ and for bridging agents, the distribution is constructed from particles having specific sizes. Methods making and using the drilling fluids were also discovered.