EP 2401465 A2 20120104 - DOWNHOLE VIBRATION APPARATUS AND METHOD
Title (en)
DOWNHOLE VIBRATION APPARATUS AND METHOD
Title (de)
BOHRLOCHVIBRATIONSVORRICHTUNG UND -VERFAHREN
Title (fr)
APPAREIL DE VIBRATION DE FOND DE TROU ET PROCÉDÉ CORRESPONDANT
Publication
Application
Priority
- US 2010025622 W 20100226
- US 15560109 P 20090226
Abstract (en)
[origin: US2010212901A1] A method of extending an earthen bore comprises the steps of rotating a drill bit at the end of a tubular while vibrating the tubular. The method results in reduced friction to tubular advance through the bore and results in stabilized drill bit loading and longer usable drill bit life. A method of conditioning a cement slurry in an annulus between a casing and a bore to improve a resulting cement liner comprises the steps of coupling a vibration generator to the casing, running the casing into the bore, displacing the cement slurry into the annulus and using the vibration generator to vibrate the casing. A vibration generator may comprise a mass, having a mass center, coupled to a frame, a motor and a power source to spin the mass about an axis offset from the mass center.
IPC 8 full level
E21B 7/24 (2006.01)
CPC (source: EP US)
E21B 7/24 (2013.01 - EP US); E21B 23/001 (2020.05 - EP); E21B 28/00 (2013.01 - EP US); E21B 33/14 (2013.01 - EP US); E21B 23/001 (2020.05 - US)
Citation (search report)
See references of WO 2010099465A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
US 2010212901 A1 20100826; CA 2753595 A1 20100902; EP 2401465 A2 20120104; WO 2010099465 A2 20100902; WO 2010099465 A3 20101216
DOCDB simple family (application)
US 71415710 A 20100226; CA 2753595 A 20100226; EP 10706123 A 20100226; US 2010025622 W 20100226