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:
Jul. 21, 2026
Filed:
Oct. 04, 2022
The Penn State Research Foundation, University Park, PA (US);
Arash Dahi Taleghani, University Park, PA (US);
Seyedeh Maryam Tabatabaei, University Park, PA (US);
THE PENN STATE RESEARCH FOUNDATION, University Park, PA (US);
Abstract
Embodiments relate to a lost circulation material comprising a plurality of shape memory polymer members, each member having a temporary shape and a permanent shape. The members may be programmed to form a temporary shape that is small enough to be used with conventional drilling equipment and may further transform to corresponding permanent shapes to plug fractures. Specifically, the shape memory polymer-based lost circulation material can utilize self-assembly to plug fractures formed during drilling. Embodiments of the lost circulation material can be particularly useful for plugging large fractures. Permanent shapes present different topologies including granular, fibers, and two-dimensional networks/lattices in which can mechanically interlock and form a three-dimensional plug large enough to seal large width fractures.