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:
Mar. 16, 2010
Filed:
Oct. 11, 2006
Applicant:
Trond Standal, Kristiansand, NO;
Inventor:
Trond Standal, Kristiansand, NO;
Assignee:
National Oilwell Norway AS, , NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill floor device has two or more mouseholes for assembly and disassembly of pipe string sections. The mouseholes are arranged to be displaced underneath the drill floor by a drive system and positioned under a hole or an opening in the drill floor. At least one of the mouseholes is provided with an elevator arranged to raise and lower a pipe or a pipe string section located in the mousehole, between an upper working position in which the upper end of the pipe/pipe string section projects above the drill floor and a lower position of rest in which the upper end of the pipe/pipe string section is below the drill floor.