Determination of absorption mass transfer coefficients of methane into drilling fluid base oils at elevated pressures
Document Type
Article
Publication Date
6-1-2023
Abstract
Absorption mass transfer coefficients (kla) of methane into two widely used drilling fluids base oils-internal olefins and diesel were determined at elevated pressure. A laboratory-scale bubble column (0.0254 m diameter and 0.71 m static liquid height) was used to perform the experiments. Ranges of superficial gas velocity (0.0045–0.0491 m/s) and system pressure (0.69–2.07 MPa) were covered. Based on the results, the effects of the varying parameters on kla have been discussed. Based on the observations, an empirical model was developed for the volumetric mass transfer coefficient as a function of superficial gas velocity and density. This correlation fitted well (R2 > 0.98) with the measured kLa values for the investigated range of operating conditions. This study gives new quantitative insights into the absorption kinetics of methane into two drilling fluid base oils, which are important for improving gas influx management with non-aqueous drilling fluids.
Publication Source (Journal or Book title)
Experimental Thermal and Fluid Science
Recommended Citation
Perry, S., Mahmud, S., & Chen, Y. (2023). Determination of absorption mass transfer coefficients of methane into drilling fluid base oils at elevated pressures. Experimental Thermal and Fluid Science, 144 https://doi.org/10.1016/j.expthermflusci.2023.110853