Pre-Drilling (Modeling):

• Building the Geological Blocks:  Sequence Stratigraphy, Depositional Style, Structural Evolution, Faults and salt timing etc.
• QC and apply Seismic Velocities for predicting PP
• QC and apply Petrophysical Data of Offset Wells for predicting PP / FP
• Establish PP / FP Parameters, Exponents, and calculate NCT
• Build the Prediction Model and Calculate PP-FP Profiles in psi and ppg of proposed location
• Pre-Drilling Compartmentalization Evaluation (when possible)
• Establish Casing and Mud Programs and Expected Drilling Challenges
• Predict drilling challenges along the bore hole trajectory

During-Drilling (Calibration):

• MWD, Mud Logs, Measurements, Drilling Events

• Calibration of the Pre-Drilling Geopressure Model (new approach)

• Ahead of the Drilling Bit Prediction

Post-Drilling (Appraisal):

• Success or Failure Assessments
• Appraisal of vertical and lateral seals and the exploration potentials in the offset structural segments
• Calculating of Sealing and Hydrocarbon Retention capacities
• Trapped hydrocarbon limits and volume

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"Everyone felt that, at present, there were just some 'cookbook' formulas for addressing velocity that sometimes fit and sometimes do not"

"There is a lack of calibration to give confidence in some of the technologies that are being used"

Roegiers J, Chair of SPE/AAPG/SEG workshop addresses pore-pressure uncertainties, TLE August 2007