Question

9. Calculate the cost per foot of the core for a typical offshore and onshore operation. Assume the reservoir depth is 18,000 feet. Please specify where you obtained your day rates for rigs and how you estimated the time required for the coring operation.

10. The estimate of porosity involves measures of dimensions, mass and grain densities. The measured grain density is 2.67 ± 0.03 g/cc. Assuming a perfect right circular cylindrical sample with a measured length of 25.25 ± 0.03mm and diameter of 24.63 ± 0.05mm and a dry weight of 28.32 ± 0.06gm, calculate the porosity and the uncertainty in the calculated value.

Answer 1