US Patent Application No: 2011/0108,282

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Apparatus and Method for Managed Pressure Drilling

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Abstract

A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TRANSOCEAN SEDCO FOREX VENTURES LIMITEDHOUSTON, TX7
TRANSOCEAN OFFSHORE DRILLINGHOUSTON, TX1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Black, Sandy Scotland, GB 3 16
Juran, Tim Cypress, TX 3 16
Kozicz, John Spring, TX 3 16
Legault, Andy Houston, TX 3 16
Mackay, John San Jose, CA 28 234
Niven, Scott Scotland, GB 3 16
Sneddon, Iain Scotland, GB 3 16

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