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1. WO2018129252 - ROTARY STEERABLE DRILLING SYSTEM WITH ACTIVE STABILIZER

Publication Number WO/2018/129252
Publication Date 12.07.2018
International Application No. PCT/US2018/012484
International Filing Date 05.01.2018
IPC
E21B 7/06 2006.01
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
7Special methods or apparatus for drilling
04Directional drilling
06Deflecting the direction of boreholes
E21B 23/12 2006.01
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
23Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
08Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
12Tool diverters
CPC
E21B 17/10
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
10Wear protectors; Centralising devices ; , e.g. stabilisers;
E21B 17/1014
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
10Wear protectors; Centralising devices ; , e.g. stabilisers;
1014Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
E21B 17/1021
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
10Wear protectors; Centralising devices ; , e.g. stabilisers;
1014Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
1021with articulated arms or arcuate springs
E21B 17/1078
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables;; Casings; Tubings
10Wear protectors; Centralising devices ; , e.g. stabilisers;
1078Stabilisers or centralisers for casing, tubing or drill pipes
E21B 7/04
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
7Special methods or apparatus for drilling
04Directional drilling
E21B 7/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
7Special methods or apparatus for drilling
04Directional drilling
06Deflecting the direction of boreholes
Applicants
  • GENERAL ELECTRIC COMPANY [US]/[US]
Inventors
  • REN, Zhiguo
  • FU, Xu
  • BRAZIL, Stewart, Blake
  • WANG, Chengbao
Agents
  • POLLANDER, Laura, L.
  • DIMAURO, Peter, T.
  • MIDGLEY, Stephen, G.
  • WINTER, Catherine, J.
  • GNIBUS, Michael, M.
Priority Data
201710007314.805.01.2017CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ROTARY STEERABLE DRILLING SYSTEM WITH ACTIVE STABILIZER
(FR) SYSTÈME DE FORAGE ROTATIF ORIENTABLE À STABILISATEUR ACTIF
Abstract
(EN)
A drilling system includes a drill string for connecting with a drill bit for drilling a borehole, a fixed stabilizer fixed on the drill string, and an active stabilizer including a body and actuators connecting the body and the drill string. The actuators are capable of driving the drill string away from a center of the borehole with a displacement. The body has an outer surface for contacting a wall of the borehole, an inner surface facing the drill string, and at least one guiding portion projecting from the inner surface and each defining at least one groove. The drill string includes at least one sliding portion slidable within the at least one groove respectively to constrain movement between the drill string and the active stabilizer along an axial direction of the drill string and guide movement between the drill string and the active stabilizer perpendicular to the axial direction.
(FR)
La présente invention concerne un système de forage qui comprend un train de tiges de forage destiné à être relié à un trépan pour forer un trou de forage, un stabilisateur fixe fixé au train de tiges de forage, et un stabilisateur actif comprenant un corps et des actionneurs reliant le corps et le train de tiges de forage. Les actionneurs sont aptes à entraîner le train de tiges de forage à l'opposé d'un centre du trou de forage au moyen d'un décalage. Le corps comporte une surface externe servant à venir en contact avec une paroi du trou de forage, une surface interne faisant face au train de tiges de forage, et au moins une partie de guidage en saillie de la surface interne et délimitant individuellement au moins une rainure. Le train de tiges de forage comprend au moins une partie coulissante pouvant coulisser à l'intérieur de ladite rainure respectivement pour limiter le mouvement entre le train de tiges de forage et le stabilisateur actif selon une direction axiale du train de tiges de forage et pour guider le mouvement entre le train de tiges de forage et le stabilisateur actif perpendiculairement à la direction axiale.
Also published as
SA519402177
Latest bibliographic data on file with the International Bureau