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1. WO2018151718 - DRILL STRING STABILIZER

Publication Number WO/2018/151718
Publication Date 23.08.2018
International Application No. PCT/US2017/017920
International Filing Date 15.02.2017
IPC
E21B 17/10 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
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
10Wear protectors; Centralising devices
E21B 17/22 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
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
22Rods or pipes with helical structure
CPC
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 17/22
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
22Rods or pipes with helical structure
Applicants
  • CHEVRON U.S.A. INC. [US]/[US]
Inventors
  • SOUTHLAND, Stephen, Gerald
Agents
  • WEKSBERG, Tiffany
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DRILL STRING STABILIZER
(FR) STABILISATEUR DE TRAIN DE TIGES DE FORAGE
Abstract
(EN) A drill string stabilizer (30) with an asymmetric arrangement of parts. The asymmetric design of the gage pads (304) and the junk slots (302) can provide increased efficiency, decreased vibration, and decreased localized equivalent circulating density.
(FR) L'invention concerne un stabilisateur de train de tiges de forage (30) présentant un agencement de pièces asymétrique. La conception asymétrique des tampons de calibre (304) et des fentes à rebuts (302) permet d'obtenir une efficacité accrue, des vibrations réduites, ainsi qu'une densité de circulation équivalente localisée réduite.
Latest bibliographic data on file with the International Bureau