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Cuttings transport evaluation in deviated wells


Abimbola, MO and Chukwu, GA and Khan, FI, Cuttings transport evaluation in deviated wells, Cuttings Transport Evaluation in Deviated Wells, 6-8 August 2014, St. John's, Canada, pp. 1-10. (2014) [Refereed Conference Paper]


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Copyright 2014 the Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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Cuttings transport efficiency is a measure of the extent to which cuttings are carried to the surface from a drilled hole. It quantifies the success achieved in freeing a well of drilled cuttings. It is also related to the carrying capacity of a drilling mud. Cuttings transport efficiency in vertical and deviated wellbores has been reported to depend on the following factors: hole geometry and inclination, average fluid velocity, fluid flow regime, drill pipe rotation, pipe eccentricity, fluid properties and rheology, cuttings size and shape, cuttings concentration, cuttings transport velocity, rate of penetration and multiphase flow effect. In this study, the effects of mud flow rate, rate of penetration, annular clearance, mud and cuttings densities on annular fluid velocity, transport ratio and mean mud density are investigated for highly deviated wells. Equations are developed and used to generate graphs. These equations and graphs could be applied in the field during directional drilling to determine annular fluid velocity, mud flow rate, transport ratio and mean mud density.

Item Details

Item Type:Refereed Conference Paper
Keywords:annular clearance, annular fluid velocity, cuttings transport efficiency, mean mud density, transport ratio, deflected boreholes, directional drilling, efficiency, flow graphs, flow rate, hole concentration, oil well drilling, velocity, mud density
Research Division:Engineering
Research Group:Engineering practice and education
Research Field:Engineering practice and education not elsewhere classified
Objective Division:Energy
Objective Group:Mining and extraction of energy resources
Objective Field:Oil and gas extraction
UTAS Author:Khan, FI (Professor Faisal Khan)
ID Code:120742
Year Published:2014
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-08-30
Last Modified:2018-04-05
Downloads:38 View Download Statistics

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