Well MERO-006T is an oil development well that came into production in March 1988 and has been plagued with incessant wax buildup. Research indicates that a wax-inhibition tool can be deployed in the well. The complete paper highlights the thermodynamic modeling approach adopted to determine the wax appearance temperature (WAT) in Well MERO-006T, the well-modeling approach to estimate the depth at which wax formation would occur, and the optimal depth for the wax-inhibition tool based on life-cycle-production expectations from the well. © 2023 Society of Petroleum Engineers. All rights reserved.