SEALED THREADED TUBULAR CONNECTION WHICH IS RESISTANT TO SUCCESSIVE PRESSURE LOADS

A sealed threaded tubular connection which is resistant to successive pressure loads comprises a male element (1) including a male threading (3) and a female element (2) including a female threading (4) corresponding to the male threading (3). At least one of the elements comprises a lip (5) extendi...

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Bibliographic Details
Main Author GILLOT, LAURENT
Format Patent
LanguageEnglish
French
Published 09.07.2009
Subjects
BLASTING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A sealed threaded tubular connection which is resistant to successive pressure loads comprises a male element (1) including a male threading (3) and a female element (2) including a female threading (4) corresponding to the male threading (3). At least one of the elements comprises a lip (5) extending beyond the threading (3) to the free end of the element (6) and the other element comprises a recess (10) for the lip (5). The lip (5) comprises a first zone (7) with a peripheral surface turned towards the other element on which a first sealing surface (13) is disposed which can be radially interference fitted against a corresponding second sealing surface (11) disposed on the peripheral surface of the recess (10) of the other element. The lip (5) has a second axially located zone (8) between said first zone (7) and the free end of the element (6) which comprises a first radial bearing surface (14) turned towards the other element in contact with a corresponding second radial bearing surface (12) disposed on the peripheral surface of the recess (10) of the other element. The first and second zones (7, 8) are axially separated by a third zone (9) with a radial stiffness which is lower than the first and second zones (7, 8). This third zone (9) is capable of being radially deformed towards the other element by a pressure exerted thereon.
Bibliography:Application Number: CA20082709580