April 2013 - Rocky Mountain Association of Geologists

RMAG Monthly Luncheon Program – April 10 th
MaxG Basin Temperature Modelling
By Ian Deighton and Pete Dotsey with TGS
We can apply a
lithologic thermal
conductivity shift
to the interval
geothermal gradient
layers to more closely
approximate formation
temperature, if
necessary.
A new methodology for basin temperature modelling has been developed that
utilizes a large amount of properly indexed and QC’d bottom-hole temperature
data for a basin or area. To construct the temperature volume, we first define a
curve (depth varying function) that depicts the envelope of the maximum bottom
hole temperature cloud for each major lithostratigraphic unit to define the interval
geothermal gradient. We then construct the temperature volume by stacking the
interval geothermal gradient layers for the basin or area. We can apply a lithologic
thermal conductivity shift to the interval geothermal gradient layers to more closely
approximate formation temperature, if necessary. Results for the Delaware and
Midland Basins are shown.
Speaker Bio
Pete Dotsey is the North and South America Business Development Manager
for the TGS Geological Products Division. He attained an MS in Geology from
Stephen F. Austin State University in 1983. His professional career includes:
• 3 years working for Sohio Petroleum Company in exploration;
• 9 Years working in the environmental field as a hyrdo-geologist and project
manager;
• 4 years working for Landmark Graphics Corporation as a geoscience
application consultant; and
• 13 years working with his current employer, TGS.
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Luncheon Reservations & Information
Luncheon will be held at the Marriott City Center at California and 17th St. Please check the event listing in the
lobby for the room. Check-in/walk-in registration begins at 11:30 a.m., lunch is served at 12:00 noon, and the
talk begins at 12:20 p.m. The luncheon price is $30.00. To listen only to the talk, walk-in price is $10.00. If
you make a reservation and do not attend the luncheon, you will be billed for the luncheon. Online registration
closes at 5:00 p.m. on the Thursday before the luncheon. Cancellations are not guaranteed after that time.
Your attendance is welcomed
and encouraged. Bring a guest
or new member!
Call 303-573-8621
email staff@rmag.org,
or register online.
Vol. 62, No. 4 30
April 2013