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Patent Searching and Data


Title:
DOWNHOLE VIBRATION ASSEMBLY AND METHOD OF USING SAME
Document Type and Number:
WIPO Patent Application WO/2016/063131
Kind Code:
A8
Abstract:
A vibration assembly of a drilling tool for drilling a wellbore penetrating a subterranean formation is disclosed. The downhole drilling tool includes a drill string, a bottomhole assembly and a drill bit. The vibration assembly includes a housing (334a) operatively connectable to the bottomhole assembly, expanders (122) positionable in the housing and radially extendable and retractable thereabout, and a radial vibrator (comprising mandrel (446), enlarger spring (48), cam portion (458) and vibration spring (570) operatively connectable to the expanders to vibrationally move the expanders against the wall of the wellbore whereby movement of the downhole tool is altered during drilling.

Inventors:
EDDISON ALAN MARTYN (GB)
Application Number:
PCT/IB2015/002165
Publication Date:
May 11, 2017
Filing Date:
October 16, 2015
Export Citation:
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Assignee:
NOV DOWNHOLE EURASIA LTD (GB)
International Classes:
E21B7/24; E21B7/28; E21B10/32; E21B28/00
Attorney, Agent or Firm:
LUCAS, Brian, Ronald (135 Westhall RoadWarlingham, Surrey CR6 9HJ, GB)
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