Inventors:
David D. Hearn - Houston TX, US
Lamar L. Gantt - Anchorage AK, US
Dan E. Venhaus - Chugiak AK, US
John G. Eller - Anchorage AK, US
Assignee:
CONOCOPHILLIPS COMPANY - Houston TX
International Classification:
E21B 23/03, E21B 7/04
Abstract:
The present invention relates to drilling lateral wells or sidetrack wells from a primary wellbore to enhance the efficiency and productivity of oil and gas wells.