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.

Date of Patent:
Mar. 02, 2021

Filed:

Sep. 13, 2018
Applicant:

Baker Hughes, a GE Company, Llc, Houston, TX (US);

Inventors:

James R. Allensworth, Houston, TX (US);

Moctesuma R. Trevino, Houston, TX (US);

Marshall Chiasson, Spring, TX (US);

Assignee:

Baker Hughes Holdings LLC, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/528 (2006.01); E21B 37/06 (2006.01);
U.S. Cl.
CPC ...
C09K 8/528 (2013.01); E21B 37/06 (2013.01);
Abstract

Certain sugars, when exposed to high temperatures, undergo oxidation to produce acidic species. Certain sugar alcohols are also acid precursors. The acidification process is a function of temperature, salinity, pH, and/or the presence of an agent, such as an accelerator or a retarder. The rate of acidification may be controlled within a filter cake breaker fluid in order to achieve a predetermined fluid pH after a selectable period of time. The time controllable nature of the acidification allows the development of filter cake breaker fluids with an engineered activity delay.


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