Title:
METHODS FOR CHARACTERIZATION OF FORMATIONS, NAVIGATING DRILL PATHS, AND PLACING WELLS IN EARTH BOREHOLES
Document Type and Number:
WIPO Patent Application WO/2011/049828
Kind Code:
A8
Abstract:
A method for directing borehole drilling in a target earth formation includes the following steps: providing drilling equipment having a bottom hole assembly that includes a controllable directional drilling subsystem, and a logging-while- drilling directional measurement tool with a look-around and look-ahead capability; determining the presence of a predetermined type of formation characteristic in the target formation; and navigating a drill path in the target formation with the drilling equipment, including receiving measurement signals from the directional measurement tool, obtaining, from the received measurement signals, indications of formation parameters with respect to the formation characteristic in the target formation, and controlling the directional drilling subsystem to drill in a direction determined as a function of the obtained indication of formation parameters.
Inventors:
SEYDOUX JEAN (US)
CHOW YUK HA (US)
CHOW YUK HA (US)
Application Number:
PCT/US2010/052853
Publication Date:
September 20, 2012
Filing Date:
October 15, 2010
Export Citation:
Assignee:
SCHLUMBERGER CA LTD (CA)
SCHLUMBERGER TECHNOLOGY BV (NL)
PRAD RES & DEV LTD
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS
SEYDOUX JEAN (US)
CHOW YUK HA (US)
SCHLUMBERGER TECHNOLOGY BV (NL)
PRAD RES & DEV LTD
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS
SEYDOUX JEAN (US)
CHOW YUK HA (US)
International Classes:
E21B47/02; E21B45/00; G01V9/00
Attorney, Agent or Firm:
FONSECA, Darla, P et al. (Office of IP Counsel200 Gillingham Lane MD 200-, Sugar Land TX, US)
Download PDF: