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1. WO2014127059 - APPARATUS AND METHODS OF RUNNING CASING IN A DUAL GRADIENT SYSTEM

Publication Number WO/2014/127059
Publication Date 21.08.2014
International Application No. PCT/US2014/016129
International Filing Date 12.02.2014
IPC
E21B 33/16 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
16using plugs for isolating cement charge; Plugs therefor
E21B 43/10 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
02Subsoil filtering
10Setting of casings, screens or liners in wells
E21B 21/00 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
E21B 21/08 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
08Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
CPC
E21B 21/001
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
001specially adapted for underwater drilling
E21B 21/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
08Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
E21B 33/13
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
E21B 33/16
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
16using plugs for isolating cement charge; Plugs therefor
E21B 43/101
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
02Subsoil filtering
10Setting of casings, screens, liners ; or the like; in wells
101for underwater installations
Applicants
  • WEATHERFORD TECHNOLOGY HOLDINGS, LLC [US]/[US]
Inventors
  • BUDDE, Marcel
  • LIRETTE, Brent J.
  • LOGIUDICE, Michael
Agents
  • PATTERSON, William B.
Priority Data
61/763,82712.02.2013US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHODS OF RUNNING CASING IN A DUAL GRADIENT SYSTEM
(FR) APPAREILS ET PROCÉDÉS POUR LA MISE EN PLACE D'UN TUBAGE DANS UN SYSTÈME À DOUBLE GRADIENT
Abstract
(EN) A method of running casing in a dual gradient system includes lowering a casing into a low density fluid region and allowing the low density fluid to enter the casing; releasing a plug into the casing; supplying a high density fluid behind the plug; and lowering the casing into a high density fluid region until target depth is reached.
(FR) L'invention concerne un procédé de mise en place d'un tubage dans un système à double gradient, consistant à descendre un tubage dans une région de fluide à basse densité et à faire entrer ledit fluide dans le tubage; à dégager un bouchon dans le tubage; à acheminer un fluide à haute densité à l'arrière du bouchon; et à descendre le tubage dans une région de fluide à haute densité jusqu'à ce que la profondeur cible soit atteinte.
Related patent documents
BR112015019325This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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