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. 14, 2021
Filed:
May. 24, 2017
Applicant:
Baker Hughes Holdings Llc, Houston, TX (US);
Inventors:
Andrea Nino-Penaloza, Houston, TX (US);
D.V. Satyanarayana Gupta, The Woodlands, TX (US);
Sandra L. Berry, Tomball, TX (US);
Harold G. Hudson, The Woodlands, TX (US);
Elizabeth McCartney, Houston, TX (US);
Assignee:
Baker Hughes Holdings LLC, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/28 (2006.01); C09K 8/74 (2006.01); C09K 8/54 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
C09K 8/74 (2013.01); C09K 8/54 (2013.01); E21B 43/26 (2013.01); E21B 43/28 (2013.01); C09K 2208/32 (2013.01);
Abstract
Sandstone formations of oil and gas and geothermal wells may be successfully stimulated with a fluid containing GLDA or salt and HF or a HF-generating component and an organophosphonate component. The organophosphonate acts as a sequestering agent and reduces the amount of metal fluoride precipitates produced.