Title:
APPARATUS AND METHOD FOR DRILLING WELLBORES BASED ON MECHANICAL SPECIFIC ENERGY DETERMINED FROM BIT-BASED WEIGHT AND TORQUE SENSORS
Document Type and Number:
WIPO Patent Application WO/2012/154415
Kind Code:
A3
Abstract:
The disclosure, in one aspect, provides a method of drilling a wellbore that includes features of drilling the wellbore using a drilling assembly that includes a drill bit that further includes a weight sensor and a torque sensor, determining weight-on-bit using measurements from the weight sensor and torque-on-bit using measurement from the torque sensor during drilling of the wellbore, obtaining measurements for rotational speed of the drill bit and rate of penetration of the drill bit during drilling of the wellbore, determining mechanical specific energy of the bottomhole assembly using the determined weight-on-bit, torque-on-bit and obtained rotational speed of the drill bit and the obtained rate of penetration of the drill bit, and altering a drilling a parameter in response to the determined mechanical specific energy.
Inventors:
TRINH TU TIEN (US)
SULLIVAN ERIC (US)
SNELL LANE E (US)
SULLIVAN ERIC (US)
SNELL LANE E (US)
Application Number:
PCT/US2012/035202
Publication Date:
March 21, 2013
Filing Date:
April 26, 2012
Export Citation:
Assignee:
BAKER HUGHES INC (US)
TRINH TU TIEN (US)
SULLIVAN ERIC (US)
SNELL LANE E (US)
TRINH TU TIEN (US)
SULLIVAN ERIC (US)
SNELL LANE E (US)
International Classes:
E21B12/02; E21B10/26; E21B47/00
Domestic Patent References:
| WO2010027839A2 | 2010-03-11 |
Foreign References:
| US20080156531A1 | 2008-07-03 | |||
| US20100252325A1 | 2010-10-07 | |||
| US5163521A | 1992-11-17 |
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