Field comparison of 2-D and 3-D methods for the borehole friction evaluation in directional wells.
Document Type
Article
Publication Date
1-1-1987
Abstract
The two new general procedures for the borehole drag prediction, based on the borehole friction factor concept were compared. The procedures employed iteration over the directional survey stations, numerical integration between the stations and mathematical models of the axial loads within a moving pipe in the borehole. The models considered several new effects such as hydrodynamic viscous drag, contact surface, and the bearing angle component of dogleg severity. The field data used included four casing runs from the offshore locations in the Gulf Coast area. In addition, the systematic theoretical study was performed with over 100 computer simulated directional wells. The study revealed a good agreement between 2 D and 3 D procedures for most common drilling conditions.
Recommended Citation
Maidla, E., & Wojtanowicz, A. (1987). Field comparison of 2-D and 3-D methods for the borehole friction evaluation in directional wells.. https://doi.org/10.2523/16663-ms