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:
Jan. 09, 2001
Filed:
Oct. 13, 1998
Jeffrey Charles Edwards, Aberdeen, GB;
Michael Graham Morgan, Banff, GB;
Expro North Sea Limited, , GB;
Abstract
A bore selection apparatus (,) is described for facilitating access from a single bore riser to a production bore (,) or annulus bore (,) without using a wireline-run whipstock. The bore selector apparatus disposed within the bore of a BOP stack (,) and which can be coupled between casing or tubing and a sub-sea test tree. The bore selector apparatus (,) can be actuated from the surface or from an ROV to provide a coupling between the tubing bore (,) and the production bore (,) or between the tubing bore (,) and the smaller annulus bore (,). In a preferred embodiment this is achieved by using a rotatable ball valve element (,) located in a housing (,) disposed between the casing/tubing and a sub-sea test tree (,), the ball valve element (,) being apertured and being rotatable between a first position whereby the aperture (,) connects the production tubing to the production tubing bore (,) and in a second position is rotated whereby the aperture (,) connects the annulus bore (,) to the tubing or casing bore. When one of the production or annulus bores is connected to the tubing bore, then the other bore is isolated or disconnected. Alternative embodiments of the invention are described.