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:
Oct. 07, 2003
Filed:
Sep. 13, 2000
Andrew Downie, Fife, GB;
Neyrfor-Weir Limited, Aberdeen, GB;
Abstract
There is disclosed an improved downhole steerable motor assembly ( ) and related method. A problem in known assemblies is that the distance from a bent housing bend axis to the face of a drill bit needs to be kept relatively short resulting in the length of the bearing package and its thrust capacity being restricted. Accordingly, the invention provides a downhole motor assembly ( ) comprising a motor ( ), at least one thrust bearing ( ) and a bent portion ( ), the assembly ( ) having a first end ( ) and a second end ( ), the first end ( ) being closer to surface than the second end ( ), in use, wherein the bent portion ( ) is closer to the second end ( ) than is the at least one thrust bearing ( ).