Threaded connection for drilling and working hydrocarbon wells

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United States of America Patent

PATENT NO 9816646
SERIAL NO

13977240

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A threaded connection including first and second tubular components, each including a respective male and female end, the male end includes at least one threaded zone on its external peripheral surface and ending in a terminal surface, the female end includes at least one threaded zone on its internal peripheral surface and ending in a terminal surface, the threaded zones including, over at least a portion of their length, threads each including, viewed in longitudinal section passing through the axis of the tubular component, a thread crest, a thread root, a load flank, and a stabbing flank. Profiles of the male and female load flanks, viewed in longitudinal section passing through the axis of revolution of the connection, are a continuous curve with a convex or concave form, the profile of the male flanks being complementary to that of the female flanks over at least 70% of the continuous curve.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONTOKYO JAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carrois, Fabien Valenciennes, FR 4 20
Conrad, Francois Belo Horizonte, BR 3 27
Gallois, Yann Frasnoy, FR 5 22

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