Challenge: Assess the production potential of
a reservoir in a tight carbonate formation with historically high sticking
risk.
Solution: Use SpectraSphere fluid
mapping-while-drilling service, along with the EcoScope multifunction
logging-while-drilling service, to reveal the presence of movable fluids in the
low-permeability section of the reservoir.
Results:
- Used mobility data obtained from pretests to adjust pumpout
depths.
- Observed hydrocarbon breakthrough within 25–45 min of pumpout,
significantly earlier than previously experienced in the area.
- Demonstrated good agreement between downhole fluid analysis (DFA) and
data obtained after laboratory measurement.
- Observed three-phase fluids in captured flowline samples.
- Minimized known sticking risk due to the innovative stabilizer design
and optimized mud weight.