Management of subsea wellhead stresses

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12247478
APP PUB NO 20210285317A1
SERIAL NO

17198819

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention relates to a method and system for monitoring strain data on a subsea wellhead and associated tubing especially during a drilling or completion operation when the wellhead is connected via a riser to a drilling rig. The bending stresses on the wellhead assembly can be modelled and monitored, based on strain data from strain gauges attached to the conductor, surface casing and possibly also inner tubing. The strain gauges are located where maximum bending stresses occur, at around seafloor level. Data from the strain gauges is transmitted by radio to a receiver unit on the template, from which it may either be transmitted to the surface or stored and retrieved by divers or subsea vehicles.

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Patent Owner(s)

  • CONOCOPHILLIPS COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nevoey, Harald Tananger, NO 1 1
Woie, Rune Tananger, NO 15 153

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