This paper gives a method of analysis for determining drill string weight required to develop a given bit force while drilling through and out of high-curvature well bores. The analysis is directed at medium radius well bores having radii of curvature ranging between 286 ft (87 m) and 955 ft (291 m), which are typically found in horizontal drilling. Sample calculations show how friction within the angle building portion of the well affect bit force.

This content is only available via PDF.
You do not currently have access to this content.