Investigative Review on Cutting Transportation Ability of Ionic Liquid-Based Drilling Mud

Muhammad Hammad Rasool, Asif Zamir, Khaled Abdalla Elraies, Maqsood Ahmad, Muhammad Ayoub, Muhammad Adeem Abbas


The inadequate removal of cuttings from the wellbore leads to poor wellbore cleaning, thus causing wellbore instability, impeding the whole drilling process. Many parameters affect the cutting transportation phenomenon of the drilling mud. The fluid parameters that depend upon mud rheology are the most important ones. Lately, various investigators have been using different combinations of ionic liquids (IL) as a drilling fluid additive to improve the Yield point vs. Plastic Viscosity ratio (YP/PV) of the mud, which is considered as the best indicator of mud rheology. This study aims to review and investigate the efficiency of different ionic liquid-based drilling muds to improve the mud cutting transportation ability. The conducted systematic review shows that the ‘imidazolium’ based ionic liquids are the most popular among various investigators. The paper presents the comparative analysis of drilling fluid compositions, optimized concentration, the effect of alkyl chain length, and type of ionic liquids with the resultant Yield Point (YP) vs. Plastic Viscosity (PV) ratio utilized by various research groups. Lastly, Moore’s correlation has been used to comparatively analyze the YP and PV effect on cutting transport ratio, which demonstrates that high mud rheology will improve the cutting transportation ability up to 96%.


Keywords: ionic liquids, cutting transport, drilling mud, Moore’s correlation.



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