In Well 2, during the real-time landing, Reservoir A was not detected
and reservoir B was detected 75-ft [23-m] TVD below the sensor measure point
with the bit 328-ft [100-m] MD from the Reservoir B intersection. The thickness
of Reservoir B could also be estimated when closer. With the drillstring still
in Reservoir B, the top of Reservoir C could be detected 66-ft [20-m] TVD
below. The base of Reservoir C could be seen more than 105-ft [32-m] TVD away
from the well trajectory.
In Well 3, the inversion from the GeoSphere service indicated that the
top of Reservoir A was detected 52-ft [16-m] TVD deeper than expected, 26-ft
[8-m] TVD below the sensor measure point. Reservoir A was also much thinner
than expected—less than 7 ft [2 m] thick. Reservoir B was absent and upon
penetration of the main Reservoir C, the formation structure below could also
be mapped to show the base of Reservoir C at 105-ft [35-m] TVD below. The
trajectory inclination was further adjusted to land in the higher resistive
part of this structure.