Petrophysical Studies

Typical E-log suites

Deep Resistivity, Gamma Ray, Neutron, Micro-lateral, Sonic, and Density-Neutron

Representative Values for Porosity Calculation

Ros = 25 to 35 % (MLL)
Matrix Transit Time = 47.5 micro sec./ft. in cherty dolomite (sonic)
Shale Porosity = 40% (neutron)
Tite Anhydrite Porosity = 3% (neutron)

 

Validate Porosity, Sw, and Bulk Volume Water from Pickett Plot

Use Drillstem Test and Production data

Results from Pickett Plot

Identify top of Mississippian Pay
Average Total Porosity & Sw in pay (macro &micro)
Identify Transition zone & Oil-Water Contact


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Last updated December 14, 1998
http://www.kgs.ku.edu/DPA/Schaben/ResSim/RS2-phys.html