Fall Workshop Update

Dominic Holmes
Digital Formation

The Shaley Sand course is coming up soon - October 19^th. If you would still like to attend, there is space still available. The absolute final day I can accept registrations is Friday, October 5^th. If you have colleagues or clients that might be interested, please let them know about the course as well.

I will need to have a check or cash from all attendees by noon on the 5^th.  Unfortunately, we cannot accept credit cards. 

Complete information is available here.

From the President

Dick Merkel
EnCana

For anyone who has not signed up (October 5^th deadline) for the DWLS Fall Workshop, I would suggest that you are missing a very rare opportunity to meet and hear E C Thomas. The topic, of course, is about the effect of clays on the resistivity log in shaley sands. This is a recurring problem in most reservoirs we have here in the Rocky Mountains. His insight and experience should be invaluable for those of us who work on these problems on a daily basis.

Your Board is now contemplating a Spring Workshop. Although a final decision has yet to be made, we are leaning toward the topic of core analysis and the use of core in petrophysical modeling. Since these workshops are for the benefit of our membership, your input into the topic selection is imperative. Please call or email any of the Board members with your suggestions of both a topic and a speaker for upcoming workshops. Each workshop requires considerable planning on our part, so the sooner we can get started, the better. For example, we started planning for the October Workshop last June.

Like last month, this month's speaker (Steve Cumella) will be talking about log interpretation in the Piceance Basin. This is partly because of the amount of interest we now see in the Piceance, but also because there is a wealth if data that is being generated as a result of the activity. Although parameters do change between basins (and fields within each basin), it has been my experience that the Cretaceous reservoirs in the Rockies have similar logging and interpretation problems. I am looking forward to see how pulsed neutron technology can be applied in tight gas sands.

From the Vice President - Technology

Jack Bowler
Bowler Petrophysics, Inc.

Here's a quick reminder on the upcoming meetings - remember to mark your calendars!

November 20^th

Dick Merkel, Encana - Using Core Data to Develop and Calibrate Petrophysical Models in Tight Gas Sandstone Reservoirs

December 18^th

Max Peeters - Design of a sliding-weight borehole gravimeter to measure rock density in highly deviated and narrow bore holes

From the Vice President - Membership

Bill Rodgers
Weatherford International

The membership drive for the 2007-2008 year has started out great!!!

We have had 26 members renew their membership this month and 8 new members join already! We are encouraging the remaining 2006-2007 active members to renew. The presentations for the year are confirmed and they will all be very informative and educational for our membership.

I encourage all members to recruit all geoscience professionals that you meet to join the Denver Well Log Society. Don't forget. New members pay no dues until September of 2008. In fact, new members can email me your membership form (or the information we are requesting), without taking the time to mail a letter. So take 5 minutes, download the form (membership form) and send me an email mailto:bill.rodgers@weatherford.com) today.

If you are already a member and, just send your $10 check with your business card to me.

Here's a membership form you can fill out and send with your payment to me at:

Bill Rodgers
DWLS VP Membership
c/o Weatherford International
410 17th St, Suite 400
Denver, CO 80202
mailto:bill.rodgers@weatherford.com

Or bring your filled out form along with payment to the September meeting.

If you are already a lifetime member, you may want to fill out an update form if any of your contact information may have changed in the last year.

From the Secretary / Treasurer

Stefani Whittaker
The Discovery Group

The year has started off well financially with all the membership dues, and Shaley Sand Course revenue (view the current P/L Statement). I will have receipts for last months luncheon and membership dues at next month's meeting. If there are any other financial questions or concerns please don't hesitate to contact me.

We are still looking for beer sponsors for the months of December, February, March and May. If your company would like to sponsor beer tickets at a monthly meeting, please let me know.

Look forward to seeing you at the October 16^th Lunch!!!

"Open-Hole or Cased-Hole Logs in Tight Gas Sands?"

Steve Cumella
Bill Barrett Corporation

In many tight-gas sandstone plays, cased-hole logs are being run instead of open-hole logs as a cost-savings measure. Open-hole logs have information that can be critical in making completion decisions, especially regarding identification of wet zones. Service companies calculate emulated neutron and density porosity curves, as well as resistivity curves from pulsed-neutron log data. In many instances, these emulated curves do not match open-hole data very well.

Furthermore, SP response and invasion profiles from resistivity logs provide valuable information regarding permeability and water salinities that is not available from cased-hole data. Examples will be shown comparing cased-hole data to open-hole data, as well as examples of pay identification from open-hole logs that would not have been possible from cased-hole logs.

About the Speaker

Steve got his bachelors and masters in geology at University of Texas at Austin. Steve spent his first 9 years with Chevron. Steve has worked the Piceance Basin at Barrett Resources, Williams, Bill Barrett Corporation for the last 7 years.