SYSTEM FOR IMPROVING FLEXIBILITY OF RISER SUPPORTS IN STATIONARY PRODUCTION UNITS AND INSTALLATION METHOD

SYSTEM FOR IMPROVING FLEXIBILITY OF RISER SUPPORTS IN STATIONARY PRODUCTION UNITS AND INSTALLATION METHOD

The present invention addresses to a system consisting of one or more pipes of low flexural rigidity (upper and intermediate extension pipes), connected to a thicker pipe section (lower extension pipe) by means of a varied cross-section pipe (conical profile) and further an adapter shaped like a hel...

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Hauptverfasser: PEREIRA, Ladislau Israel, AGUIAR, Ludimar Lima De, HOELZ, Fabio Rocha, BRITO, Rafael Moreira De, FERREIRA, Fabio Magalhaes, REIS, Bruno Pinho Dos
Format: Patent
Sprache:eng
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EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator PEREIRA, Ladislau Israel
AGUIAR, Ludimar Lima De
HOELZ, Fabio Rocha
BRITO, Rafael Moreira De
FERREIRA, Fabio Magalhaes
REIS, Bruno Pinho Dos
description The present invention addresses to a system consisting of one or more pipes of low flexural rigidity (upper and intermediate extension pipes), connected to a thicker pipe section (lower extension pipe) by means of a varied cross-section pipe (conical profile) and further an adapter shaped like a helmet of a bend stiffener of a flexible riser, to enable, without operational losses, the use of rigid risers in Stationary Production Units (SPUs) initially designed to receive only flexible risers, therefore not having specific supports for rigid risers. The low flexural rigidity of the pipe is achieved through the correct selection of specific materials, preferably by using a titanium alloy that has a low modulus of elasticity and a high yield strength compared to steel.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title SYSTEM FOR IMPROVING FLEXIBILITY OF RISER SUPPORTS IN STATIONARY PRODUCTION UNITS AND INSTALLATION METHOD
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