Denver Well Logging Society Chapter of the SPWLA

Home of the Denver Well Logging Society

Welcome to the DWLS website! Here you'll find the current (and past) newsletters for the chapter, as well as information on our activities. Please feel free to use the contact links in the menu above if you have questions about the chapter.


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Of Interest

If you do any log interpretation at all, you need to check out the Historical Chart Books that has been made available by the DWLS. Special thanks to Bob Cluff of the Discovery Group for making this possible.

Another valuable resource, made available by the Phil Nelson of the USGS, is A Catalog of Porosity and Permeability from Core Plugs in Siliciclastic Rocks.

Almost New! Even better, we have some other goodies for sale.


Next Meeting

The next lunch meeting will be 11:20 am on Tuesday, April 16, 2024 at The Wynkoop. To make your reservations for the luncheon please use our PayPal page, no later than noon on the Thursday prior.

Presentation: Using Formation-Tester Measurements to Estimate Depth of Invasion and Water Saturation in Deeply Invaded Tight-Gas Sandstones

Abstract: Mud-filtrate invasion displaces in-situ formation fluids away from the wellbore in porous and permeable rocks. In the presence of water-base mud (WBM), invasion is accompanied by salt mixing between mud filtrate and formation brine. Formation resistivity will vary radially away from the borehole due to post-invasion ...

Speaker: Tarek S. Mohamed

About the monthly meetings.


Membership Dues

Membership (or just your memory) lapsed?  Go to our PayPal page and pay for your annual membership dues.  Even better, select the Lifetime option to eliminate the worries entirely.  While you're there, you can also make a reservation for the next luncheon.

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