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:
May. 14, 2024
Filed:
Mar. 19, 2020
Neil Andrew Abercrombie Simpson, Aberdeen, GB;
Neil Andrew Abercrombie Simpson, Aberdeen, GB;
PARADIGM DRILLING SERVICES LTD., Aberdeenshire, GB;
Abstract
A downhole apparatus (′) for reducing rotational and linear friction between a downhole tool (′) and/or a downhole tool string and the wall of a wellbore (B) includes an annular body portion (′) configured for location on a mandrel (′) of the downhole tool (′) and one or more rib portions (′) extending radially from the annular body portion (′), and configured to engage a wall of the wellbore (B), the annular body portion (′) and the one or more rib portions (′) are integrally formed. The annular body portion (′) is elastically reconfigurable between a first configuration in which the annular body portion (′) defines a first inner diameter and a second configuration in which the annular body portion (′) defines a second inner diameter configuration, the second inner diameter being larger than the first inner diameter. The annular body portion (′) is elastically or plastically reconfigurable between the second configuration and a third configuration in which the annular body portion (′) defines a third inner diameter, the third inner diameter being smaller than the second inner diameter.