Title:
DOWNHOLE TOOL DEPLOYMENT MEASUREMENT METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/058296
Kind Code:
A3
Abstract:
In one aspect, an apparatus for conveying a tool while drilling a wellbore is provided. The apparatus includes a line coupled to the tool, a conveying assembly coupled to the line, the conveying assembly located at a surface and configured to release the line to convey the tool into the drill string and a sub including a passage for the line to pass therethrough. The apparatus also includes a measuring device configured to determine a position of the tool within the drill string by determining a length of the line that is conveyed along with the tool into the drill string.
Inventors:
HETZ DORON (US)
EVANS JOHN GERARD (US)
EVANS JOHN GERARD (US)
Application Number:
PCT/US2011/057867
Publication Date:
August 02, 2012
Filing Date:
October 26, 2011
Export Citation:
Assignee:
BAKER HUGHES INC (US)
HETZ DORON (US)
EVANS JOHN GERARD (US)
HETZ DORON (US)
EVANS JOHN GERARD (US)
International Classes:
E21B47/00; E21B47/01; E21B47/09; E21B47/12
Foreign References:
| US20090178847A1 | 2009-07-16 | |||
| US4577410A | 1986-03-25 | |||
| US20090025981A1 | 2009-01-29 | |||
| US7142985B2 | 2006-11-28 |
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