What do you need for a  routine fault seal analysis ?


Structure-Depth maps

These are used for construction of fault plane profiles to establish juxtaposition relationships across the fault.

Well Logs 

These are used both for determining the thickness of sands and shales juxtaposed by the fault as well as for determining sand/shale content for quantitative fault seal analysis.  Logs commonly  used are SP, GR, Neutron Density, and Neutron Porosity.  The number of wells used depends upon the stratigraphic variability as well as the simple availability of stratigraphic control.  For most prospect assessments we run several max, min and most likely cases and may use Monte Carlo analysis for both structural and stratigraphic uncertainty.

Pressure Data

Pressure data include LOT's, RFT's, and FIT's.

This is a sample   

"What's the cost of a dry hole?  What's the cost of a misplaced production well?  That's the cost of routine fault seal analysis."








Time and Costs of a routine fault seal analysis depend upon the number of faults, number of wells, and number of reservoir intervals.  A single fault analysis of a Gulf Coast prospect will normally be completed in 2-5 days and result in a fault plane profile, quantitative fault seal analysis, SGR map of the fault plane and a risk analysis based upon analogs in our extensive Fault Seal database.  


Other risks that may have to be evaluated include:


bulletBrittle failure
bulletFault reactivation
bulletFault intersections
bulletPresent-day & residual stress fields
bulletTop seal integrity


HOME UPFor a cost estimate