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:
Jun. 11, 2024
Filed:
Mar. 09, 2021
Deltatek Oil Tools Limited, Aberdeen, GB;
Tristam Paul Horn, Westhill, GB;
Stephen Edmund Bruce, Blairgowrie, GB;
David Michael Shand, Banchory, GB;
Tyler Rhes Reynolds, Magnolia, TX (US);
Deltatek Oil Tools Limited, Aberdeen, GB;
Abstract
A method of locating bore-lining tubing, such as a liner (), in a drilled bore () comprises selecting a buoyant material, such as air (), having a density lower than the density of an ambient fluid, such as well fluid (). The buoyant material () and an inner tubing () are located within the bore-lining tubing () with the inner tubing () extending from a distal end of the bore-lining tubing to a proximal end of the bore-lining tubing. The inner tubing () is sealed to the distal end of the bore-lining tubing () and to a portion of the bore-lining tubing () spaced from the distal end to define an inner annulus () between the inner tubing () and the bore-lining tubing (). A volume of the buoyant material () is retained within the inner annulus (). An assembly () comprising the inner tubing () and the bore-lining tubing () and containing the volume of buoyant material () is run into a drilled bore (). Fluid () may be flowed through the inner tubing () and into an outer annulus () surrounding the bore-lining tubing ().