Drilling exploratory wells in Campos Basin shallow water has been done before. However, if you put in place an aggressive exploratory campaign to drill 40 wells in less than 2 years, with more than 4 semi-submersible rigs new to the area and all for a recently created operating company, you are facing quite a challenge.The lithology of the wells in block C-M-592, pore pressure profiles and the requirement for formation evaluation while drilling are challenges that needed to be addressed in the design and drilling of these wells. In addition, multiple bit trips, low ROP, and high drilling vibrations have also contributed to increased non-productive time (NPT) with the associated costs.An integrated approach to engineering and real time monitoring has been the key to controlling the operations and understanding block C-M-592 in Campos basin. In addition, the application of appropriate new technologies along with standardized, fit-for-purpose practices that have been implemented since the beginning of the drilling campaign have resulted in performance improvements.
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