A SYSTEM AND METHOD OF CLEANING AN ANNULAR AREA IN A WELL

A SYSTEM AND METHOD OF CLEANING AN ANNULAR AREA IN A WELL

A system and method of cleaning an annular area in a well (2), comprising: - a first pipe body (4) and a surrounding second pipe body (6); - a first annulus (8) containing a clean fluid (10), and a surrounding second annulus (12) containing contaminants (14); - a plurality of sets of holes (22) form...

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Hauptverfasser: LARSEN, Arne Gunnar, MYHRE, Morten, ØSTVOLD, Arnold
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Sprache:eng ; fre
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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 LARSEN, Arne Gunnar
MYHRE, Morten
ØSTVOLD, Arnold
description A system and method of cleaning an annular area in a well (2), comprising: - a first pipe body (4) and a surrounding second pipe body (6); - a first annulus (8) containing a clean fluid (10), and a surrounding second annulus (12) containing contaminants (14); - a plurality of sets of holes (22) formed through the pipe bodies (4, 6) and dispersed along a longitudinal section (L), each set of holes (22) comprising holes (22a, 22b) aligned substantially radially; and - a washing tool (26) positioned in the first pipe body (4) and comprising spaced apart flow guides (28a, 28b) configured to enclose of a limited number of sets of holes (22), the flow guides (28a, 28b) cooperating with an inside of the first pipe body (4) to form a confined pressure compartment (30) for the limited number of sets of holes (22) when operational in the well (2). Système et procédé de nettoyage d'une zone annulaire dans un puits (2), comprenant : - un premier corps de tuyau (4) et un second corps de tuyau périphérique (6) ; - un premier anneau (8) contenant un fluide propre (10), et un second espace annulaire périphérique (12) contenant des agents de contamination (14) ; - une pluralité d'ensembles de trous (22) formés à travers les corps de tuyau (4, 6) et dispersés le long d'une section longitudinale (L), chaque ensemble de trous (22) comprenant des trous (22a, 22b) sensiblement alignés de manière radiale ; et - un outil de lavage (26) positionné dans le premier corps de tuyau (4) et comprenant des guides d'écoulement (28a, 28b) espacés conçus pour renfermer un nombre limité d'ensembles de trous (22), les guides d'écoulement (28a, 28b) coopérant avec un intérieur du premier corps de tuyau (4) pour former un compartiment de pression confiné (30) pour le nombre limité d'ensembles de trous (22) lors du fonctionnement dans le puits (2).
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Système et procédé de nettoyage d'une zone annulaire dans un puits (2), comprenant : - un premier corps de tuyau (4) et un second corps de tuyau périphérique (6) ; - un premier anneau (8) contenant un fluide propre (10), et un second espace annulaire périphérique (12) contenant des agents de contamination (14) ; - une pluralité d'ensembles de trous (22) formés à travers les corps de tuyau (4, 6) et dispersés le long d'une section longitudinale (L), chaque ensemble de trous (22) comprenant des trous (22a, 22b) sensiblement alignés de manière radiale ; et - un outil de lavage (26) positionné dans le premier corps de tuyau (4) et comprenant des guides d'écoulement (28a, 28b) espacés conçus pour renfermer un nombre limité d'ensembles de trous (22), les guides d'écoulement (28a, 28b) coopérant avec un intérieur du premier corps de tuyau (4) pour former un compartiment de pression confiné (30) pour le nombre limité d'ensembles de trous (22) lors du fonctionnement dans le puits (2).</abstract><oa>free_for_read</oa></addata></record>
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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 A SYSTEM AND METHOD OF CLEANING AN ANNULAR AREA IN A WELL
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