Title:
VIBRATION GENERATOR FOR A DRILLING INSTALLATION, UNDERWATER DRILLING INSTALLATION AND UNDERWATER DRILLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/041118
Kind Code:
A3
Abstract:
A vibration generator (9) for a drilling installation comprises a housing (16), at least one rotation body (17), a suspension (24) by means of which the rotation body is suspended rotatably within the housing, the mass centre of the rotation body (17) being eccentric with respect to the rotation axis of the suspension, and a drive (18) for rotating the rotation body. The housing (16) holds a fluid (15) which is in contact with the rotation body (17) whereby relative rotation between the rotation body and the fluid generates a flow resistance and in that the rotation body comprises flow resistance reduction means (25).
Inventors:
DE JAGER LOURENS CHRISTIAAN (ZA)
Application Number:
PCT/ZA2015/050007
Publication Date:
April 27, 2017
Filing Date:
August 31, 2015
Export Citation:
Assignee:
IHC MARINE AND MINERAL PROJECTS (PROPRIETARY) LTD (ZA)
International Classes:
E21B7/24; B06B1/10; B06B1/16; E21B3/02
Foreign References:
| US4265129A | 1981-05-05 | |||
| US20070151377A1 | 2007-07-05 | |||
| US3786874A | 1974-01-22 | |||
| US4060138A | 1977-11-29 |
Attorney, Agent or Firm:
VAN DER WALT, Louis, Stephanus (ZA)
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