Donald G. Hill, Ph.D., 

R.Gp., R.G., R.P.G.

Consulting Petrophysicist

"The World is my District"


California Registered Geophysicist No. 170

California Registered Geologist No. 6043

Kentucky Registered Professional Geologist No. 1624

Texas Licensed Professional Geophysicist No. 6289


Shaly-Sand Formation Evaluation Example 



Petrophysical Summary

Sand Thickness:                      79 ft.

Pay Thickness:                        63 ft

Average Porosity:                    26 %

Average Water Saturation:       35 %

Well Test Summary

Perforated Thickness:      30 ft

Choke Size:                      1/2 in

FARO:                              1750 STBOPD

Oil Gravity:                       40° API

This appraisal well added significant reserves to an offshore discovery.  The petrophysical program was specifically designed to evaluate shaly-sand reservoirs for oil accumulations and to distinguish oil reservoirs from gas reservoirs and fresh water sands.

How May I Help You with Your Shaly-Sand Formation Evaluation Problems?

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Contact:  Donald G. Hill at: Cell/Business Phone:  +(925) 437-5748,   FAX:   +(309) 420-7354,   Home Phone:  +(925) 947-1541  


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