Invention Grant
- Patent Title: Fatigue resistant pipe string component
- Patent Title (中): 耐疲劳管柱组件
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Application No.: US12914044Application Date: 2010-10-28
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Publication No.: US08146959B2Publication Date: 2012-04-03
- Inventor: Gabriel Roussie
- Applicant: Gabriel Roussie
- Applicant Address: FR Aulnoye-Aymeries JP Osaka-shi
- Assignee: Vallourec Mannesmann Oil & Gas France,Sumitomo Metal Industries, Ltd.
- Current Assignee: Vallourec Mannesmann Oil & Gas France,Sumitomo Metal Industries, Ltd.
- Current Assignee Address: FR Aulnoye-Aymeries JP Osaka-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0314527 20031211
- Main IPC: F16L25/00
- IPC: F16L25/00

Abstract:
A pipe string component that connects an offshore platform with a sea bed is provided. The pipe string component includes a threaded tubular connection. The threaded tubular connection includes a male tubular element including a tapered male threading, and a female tubular element including a tapered female threading that cooperates with the male threading by makeup to produce a rigid mutual connection of the tubular elements with radial interference between radial load transfer zones of the threadings. The male and female threadings each have a load flank extending substantially perpendicularly to an axis of the male and female threadings. The radial load transfer zones are at a radial distance from envelopes of thread roots of the male and female threadings. The radial load transfer zones of the threadings comprise at least one surface substantially parallel to an axis of the connection.
Public/Granted literature
- US20110037255A1 FATIGUE RESISTANT PIPE STRING COMPONENT Public/Granted day:2011-02-17
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