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:
Sep. 02, 2003
Filed:
Sep. 27, 2002
Frode Kaland, Stavanger, NO;
Gisle Vold, Sandnes, NO;
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
A production string with flexible electrical and/or hydraulic cables extending along therewith is lowered into a well through a blow-out preventer on the seabed and is formed by screwing together pipe lengths. The blow-out preventer having an enveloping pipe ram with an elastic valve element which, when pressurized, expands to envelope the production string at a preselected point. A core pipe is spliced into the production string at a preselected depth by way of threaded connections at its ends. A protective sleeve for the cables is attached to and around the core pipe, forming an annular space through which link pipes extend between end elements. The outlet ends of the link pipes have pressure couplings or blind plugs in unused holes. Support rings prevent the collapse of the protective sleeve under pressure.