Title:
EARLY DETECTION AND ANTI-COLLISION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/043073
Kind Code:
A3
Abstract:
An apparatus mechanically connected to a drill bit can include a bottom hole assembly having an MWD system, magnetic sensors, and a short range communications system. The short range communications system can be in electrical connection with the magnetic sensors. A method can include supplying a bottom hole assembly that includes an MWD system. The MWD system can have navigation sensors and acceleration sensors, magnetic sensors, and a short range communications system. The bottom hole assembly can be mechanically connected to a drill bit and the magnetic sensors can be within 10 feet of the bit. The method further includes measuring a magnetic field with the magnetic sensors and communicating the measurement of the magnetic field from the magnetic sensors to the MWD system through the short range communications system.
Inventors:
TOWLE JAMES N (US)
FAIRCHILD HANS (US)
FAIRCHILD HANS (US)
Application Number:
PCT/US2013/058908
Publication Date:
July 16, 2015
Filing Date:
September 10, 2013
Export Citation:
Assignee:
SCIENT DRILLING INT (US)
International Classes:
G01V3/08; E21B47/092
Foreign References:
| US20120013339A1 | 2012-01-19 | |||
| USRE35790E | 1998-05-12 | |||
| US20090153355A1 | 2009-06-18 | |||
| US20110220414A1 | 2011-09-15 | |||
| US5368109A | 1994-11-29 | |||
| US5924499A | 1999-07-20 | |||
| US20120134234A1 | 2012-05-31 | |||
| US5373481A | 1994-12-13 |
Attorney, Agent or Firm:
LOCKLAR, Michael (4615 SW Freeway Suite 63, Houston Texas, US)
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