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. 29, 2025
Filed:
May. 01, 2024
Saudi Arabian Oil Company, Dhahran, SA;
Graham Hitchcock, Aberdeen, GB;
Arthur Herman Hale, Angleton, TX (US);
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A downhole operation in a wellbore having a lost circulation zone that includes plugging the lost circulation zone with a material that solidifies, and extracting a core from the solidified material to form a bore through the solidified material. The core is extracted with a monolithic coring bit, which retains the core within for removing the core from the wellbore. An example of a material that solidifies are eutectic alloys, such as an alloy of bismuth and tin. Such eutectic alloys have two properties that make them attractive for use in downhole applications. Namely, these alloys expand upon solidifying (rather than shrinking like other metals), and they have relatively low melting temperatures (138° C. to 170° C.).