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:
Oct. 21, 2025
Filed:
Sep. 29, 2022
Schlumberger Technology Corporation, Sugar Land, TX (US);
Dimitri M. Khramov, Katy, TX (US);
Balakrishnan Panamarathupalayam, Houston, TX (US);
Sharath Chandra Mahavadi, Lexington, MA (US);
Lucas Mejia, Austin, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Shale inhibitor additives, wellbore fluids comprising said additives, and methods using said fluids control hydration in wellbores disposed within swellable subterranean formations. The wellbore fluids contain aqueous base fluids, the shale inhibition additives, and natural biopolymeric viscosifiers, and optional encapsulating polymer agents, wherein the shale inhibition additives include amine-based shale inhibition agents. The methods circulate the wellbore fluids into the wellbores and/or maintain triamine-based shale inhibition agents of the wellbore fluids at concentrations of at least 50% by weight, based on total weights of the shale inhibition additives during multiple circulations of the wellbore fluids in the wellbores.