RESEARCH PAPERS: Drilling/Pipeline Transportation

Frictional Pressure Losses for Single-Phase and Two-Phase Flow of Drilling Muds

[+] Author and Article Information
F. A. Elfaghi, J. P. Langlinais, A. T. Bourgoyne, W. R. Holden

Department of Petroleum Engineering, Louisiana State University, Baton Rouge, La. 70803

J. Energy Resour. Technol 105(3), 372-378 (Sep 01, 1983) (7 pages) doi:10.1115/1.3230930 History: Received October 22, 1982; Revised March 22, 1983; Online October 22, 2009


The vertical flow of mud and gas-mud mixtures in long pipes is of interest in the design and operation of subsea well control equipment where long choke lines are required. Heretofore, the question of two-phase flow of non-Newtonian drilling muds has not been investigated experimentally in full-scale well systems. Frictional-pressure losses were measured in a 2 3/8-in., 3000-ft long, vertical tubing when flowing drilling mud alone, and flowing mud-gas mixtures. The single-phase data was compared to values predicted by both the Bingham plastic and power law rheological models, which are commonly used to describe non-Newtonian fluids. The multiphase pressure loss data were used to evaluate various published correlation techniques.

Copyright © 1983 by ASME
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