Effect of Drag Forces on Bit Weight in High-Curvature Well Bores

[+] Author and Article Information
D. N. Rocheleau, D. W. Dareing

Mechanical Engineering Department, University of Florida, Gainesville, FL 32611

J. Energy Resour. Technol 114(3), 175-180 (Sep 01, 1992) (6 pages) doi:10.1115/1.2905938 History: Received May 01, 1991; Revised March 11, 1992; Online April 16, 2008


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.

Copyright © 1992 by The American Society of Mechanical Engineers
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