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:
Oct. 04, 2022

Filed:

Jun. 29, 2021
Applicant:

Lyondellbasell Advanced Poymers Inc., Houston, TX (US);

Inventor:

Bradley L. Todd, Duncan, OK (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01); E21B 33/13 (2006.01); C08G 63/08 (2006.01);
U.S. Cl.
CPC ...
E21B 33/13 (2013.01); C08G 63/08 (2013.01); E21B 43/267 (2013.01); E21B 2200/08 (2020.05);
Abstract

Viscous degradable fluids for use in fluid loss control, diversion, gravel packing, fracturing, and acidizing operations, method of preparing the viscous degradable fluids, and methods of using the viscous degradable fluids in subterranean operations. At least one aliphatic polyester is dissolved in a solvent comprising triacetin to form a viscous degradable fluid. The viscous degradable fluid can be injected directly into a subterranean formation or mixed with other fluids and/or additives before being injected into the subterranean formation, where it can temporarily block or restrict flow through openings in the formation.


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