Patent · US Active

Drilling rig riser identification apparatus

US9784041B2 · kind B2 · utility

4Cited by

94References

20Claims

0Family size

Assignee

National Oilwell Varco, L.P. · US

Inventors

Nathan Kinert · Houston, US
Leon Ellison · Huffman, US
Rheinhold Kammann · Celle, DE
Manfred Worms · Bad Doberan, DE
Clive Lam · Tomball, US
Guy L. McClung, III · Spring, US

Key dates

Filing date	Jan 31, 2009
Grant date	Oct 10, 2017
Priority date	—
Expiry date	Mar 17, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/13
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A riser having a riser body having an interior surface, an exterior surface, and two spaced-apart ends, at least one identification assembly on the riser body, the identification assembly having an assembly body and a wave energizable apparatus in the body, the assembly body having an interior surface, an exterior surface, and a channel therethrough in which is positioned part of the riser body, the assembly body releasably secured on the riser body, and the wave energizable apparatus positioned within the assembly body. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.