In some oil fields across the world, lost circulation can be so severe during drilling that
conventional treatments that might help the loss zone heal are ineffective. The Pressurized MudCap
Drilling (PMCD) technique has been introduced to drill such problematic wells, but the computation of
Light Annular Volume (LAM) and its pumping rate based on the gas migration rate determination is the
most critical part of PMCD operation design. The Taylor bubble model can be used to provide solutions
to equations describing the migration behaviour of gas kick through drilling fluids. However, the Taylor
bubble modelling approach yields undesirable outcomes when used to determine gas migration rate for
more complicated rheological models. To keep away from this, A literature review of PMCD principles
and field data was assessed. This comprehensive literature review demonstrated that if Taylor's
mathematical models employed for PMCD operations, it may result in unduly conservative calculations
of the fluid volume used and the surface pumping pressures which makes handling logistics more
difficult, resulting in PMCD operation’s complications.
