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. 24, 2016
Filed:
Sep. 04, 2009
Audun Faanes, Trondheim, NO;
Halvor Kjørholt, Trondheim, NO;
Torstein Vinge, Trondheim, NO;
STATOIL PETROLEUM AS, Stavanger, NO;
Abstract
Reducing the diameter of a well bore has many advantages. To achieve this a subsurface well bore is provided comprising one or more expandable sleeve components, preferably expandable liners (), each expandable sleeve component being fully overlapped by one or more non expandable sleeve component, preferably conventional liners (), such that the interior of the well bore is cased entirely by non expandable sleeve components (). In addition the through holes () for downhole lines can be provided within the well head () rather than the tubing hanger (). As the tubing hanger does not need to provide space for through holes and associated mounting couplings, its diameter can be reduced, thus reducing the internal diameter of the well bore by several inches.