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1. WO2017087111 - MILLS WITH SHEARABLE CUTTING MEMBERS FOR MILLING CASINGS IN WELLBORES

Publication Number WO/2017/087111
Publication Date 26.05.2017
International Application No. PCT/US2016/057464
International Filing Date 18.10.2016
IPC
E21B 29/00 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
29Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
E21B 10/32 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
10Drill bits
26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
32with expansible cutting tools
CPC
E21B 29/005
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
29Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows
002Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
005with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
Applicants
  • BAKER HUGHES INCORPORATED [US]/[US]
Inventors
  • HART, Daniel R.
Priority Data
14/947,54320.11.2015US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MILLS WITH SHEARABLE CUTTING MEMBERS FOR MILLING CASINGS IN WELLBORES
(FR) FRAISE À ÉLÉMENTS DE COUPE CISAILLABLES POUR LE FRAISAGE DE TUBAGES DANS DES PUITS DE FORAGE
Abstract
(EN) A mill for milling a casing in a wellbore is disclosed that in one non-limiting embodiment includes a plurality of radially extendable cutting members on a body, an activation device that extends the cutting members radially outward from the body upon application of a hydraulic pressure to the activation device and mechanically retracts the blades upon removal of the hydraulic pressure from the activation device, and wherein the cutting members are separable from the body
(FR) L'invention concerne une fraise pour le fraisage d'un tubage dans un puits de forage qui, dans un mode de réalisation non limitatif, comprend une pluralité d'éléments de coupe extensibles radialement sur un corps, un dispositif d'activation qui étend les éléments de coupe radialement à l'extérieur du corps lors de l'application d'une pression hydraulique au dispositif d'activation et rétracte mécaniquement les lames lors de la suppression de la pression hydraulique du dispositif d'activation, les éléments de coupe étant séparables du corps.
Related patent documents
NO20180833This 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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