Title:
PUMPING MUD BY ELECTROHYDRODYNAMIC PROPULSION
Document Type and Number:
WIPO Patent Application WO/2011/068633
Kind Code:
A3
Abstract:
A section of riser casing urges drilling mud upward from the sea floor to reduce head pressure associated with pumping drilling mud through riser casing (102) in dual - gradient drilling operations. The section of riser (130) casing may use an electromagnet (132), two or more electrodes (134), or a combination of electromagnets and electrodes to urge drilling mud having electrohydrodynamic properties through the riser casing.
Inventors:
JENNINGS CHARLES E (US)
Application Number:
PCT/US2010/055775
Publication Date:
September 22, 2011
Filing Date:
November 08, 2010
Export Citation:
Assignee:
VETCO GRAY INC (US)
JENNINGS CHARLES E (US)
JENNINGS CHARLES E (US)
International Classes:
E21B21/08; E21B21/00; H02K44/02
Domestic Patent References:
| WO1999049172A1 | 1999-09-30 | |||
| WO1992020139A2 | 1992-11-12 |
Foreign References:
| DE102004044539A1 | 2006-03-30 | |||
| EP0453567A1 | 1991-10-30 | |||
| US20060073024A1 | 2006-04-06 |
Attorney, Agent or Firm:
CONKLIN, Mark, A. et al. (Global Patent Operation2 Corporate Drive, Suite 64, Shelton CT, US)
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