Title:
DRILLING SYSTEM FOR ENHANCED CORING AND METHOD
Document Type and Number:
WIPO Patent Application WO/2012/021302
Kind Code:
A3
Abstract:
A drill string assembly is required that has the capability of operating in well bores that range in hole size from seven to eight inches in diameter. The assembly is used to obtain a large core sample size that is equal to three and one-half inches in diameter and up to ninety feet in length in a single core run. This assembly will be operated with a drill string (i.e. drill pipe) that is capable of being used on standard drilling rigs, which may be used to handle API style drill pipe to conduct coring/drilling operations. The coring tool is comprised of an inner barrel for receiving the core sample.
Inventors:
KINSELLA DOUGLAS (CA)
Application Number:
PCT/US2011/045759
Publication Date:
April 26, 2012
Filing Date:
July 28, 2011
Export Citation:
Assignee:
QCS TECHNOLOGIES INC (CA)
NASH KENNETH (US)
KINSELLA DOUGLAS (CA)
NASH KENNETH (US)
KINSELLA DOUGLAS (CA)
International Classes:
E21B10/02; E21B7/26; E21B17/00; E21B17/042
Foreign References:
| US20030106717A1 | 2003-06-12 | |||
| US20050189147A1 | 2005-09-01 | |||
| US20100096188A1 | 2010-04-22 |
Other References:
See also references of EP 2622166A4
Attorney, Agent or Firm:
NASH, Kenneth (Houston, Texas, US)
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