Denver Well Logging Society

April 2016 Newsletter

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Water Entry Detection: A Multi-Sensor, Multi-Tool Integrated Approach

Dr. Luis F. Quintero
SPWLA President-elect


Water entry detection into oil and gas wells has been a challenging problem to solve. This challenge is almost always present in wells of mature fields, where the paths to water entry are facilitated by changes in the wellbore and near-wellbore region. Proper diagnosis of these water paths into the production stream becomes of paramount importance in an economic environment of low commodity prices.

The use of circumferential array production logging tools can helpidentify the point of water entry; other methods commonly used are pulsed neutron technology, in oxygen activation mode, and temperature surveys. Of particular interest is a new acoustic conformance tool which can provide maps of frequency and amplitude radially around the wellbore. Whereas some of the 4 methods mentioned above are dynamic, others are pseudo-dynamic and/or static. At the same time, some of the methods are limited to the first tubular whereas others are not. This redundancy or complementary aspects of the measurements allow us to create an integrated approach with the use of multiple sensors and multiple tools to detect water entry into the near wellbore region and then into the production stream, hence reducing the uncertainty of the determination of  the water path.

Speaker Biography

Dr. LUIS F QUINTERO is Halliburton’s Formation and Reservoir Solutions, Global Advisor – Production Management, and is the current President-Elect of the Society of Petrophysicists and Well Log Analysts (SPWLA). Prior to joining Halliburton, he worked as president and technical leader of Oilfield Development Specialists (ODS). He obtained a B.S. in Electronic Engineering from Universidad Simon Bolivar (Venezuela), and M.Sc. and Ph.D. degrees in Petroleum Engineering from Louisiana State University.

Luis started his career in 1984 as a wireline engineer in India (offshore and onshore). He later advanced to positions in petrophysics, reservoir engineering, business development, financial analysis, project management and production management. He has been responsible for reservoir optimization plans for fields in Colombia, Guatemala, Kazakhstan, Uzbekistan, Turkmenistan, Azerbaijan, Turkey, Bulgaria, Romania, Hungary, and Poland. Luis was also the lead for production/reservoir evaluations, operations support, and training for fields/clients in Ukraine, Bahamas, USA (Texas), Libya, Colombia, Indonesia, South Africa and India.

Dr. Quintero was previously SPWLA’s Vice-President Technology and the recipient of the Medal of Honor for Career Services of SPWLA. He has more than 25 technical publications on a wide range of topics, from the use of dielectric logs in thin beds, to NMR in carbonates, to cased hole logging (Production logging, Pulsed Neutron). Luis also is the author of 11 patents.
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Tuesday, April 19th, 2016
11:20 am - 1:30 pm


Wynkoop Brewing Company
(tell me how to get there)


$20 per person
$25 at the door (space permitting)

Next Month's Talk

Title TBA
Mount Sopris

Reservations and Cancellations

Reservations must be made using the PayPal link above or on the DWLS website; reservations must be made by 5 PM the Thursday prior to the talk.  Cancellations may be made until 5 PM the Friday prior. Email your cancellation or contact Lisa Gregor at 303-770-4235.  Our full cancellation/wait list policy is available on the website.

From the Editor

Dominic Holmes

You may have noticed a change in this month's newsletter email format.  I have switched to distributing the email using MailChimp instead of mass emailing the entire membership myself, which will hopefully avoid triggering as many email spam filters.  The change required using a somewhat different layout than I have used in the past, but I think overall it's a clean look and will serve the society well.  And a bonus is that the newsletters should now be mobile device friendly.

Please email me if you have any trouble with the new format or have any comments or suggestions.

From the President

Suzanne Heskin

As spring arrives (or it's supposed to at least), I hope everyone is ready and excited for the upcoming workshop.  This spring's workshop is focused on a specific play, which should be nice, a change from the previous few that were focused more on techniques and technologies.  The Wolfcamp-Spraberry is something many of us have worked with at some point, and should be of interest to everyone.  I hope you can all make it, as Bob has certainly lined up a great group of speakers.

If anyone is interested in helping out on the board next year, I'm sure we can find something for you to do or help out with.  Just let us know!

From the Past President

Katerina Yared (standing in for Micah Miller)

I hope everyone had a good Easter holiday. It is that time of the year again to get ready for DWLS board elections. This year we are giving you more insight of the people running for the officer's position. Please take some time to go through the bio's and vote! We appreciate your support of the DWLS and participation in our SPWLA chapter!

From the Director of Social Events

Bryan Page

Please join us Thursday May 19th from 4:30-6:30 pm at Lime an American Cantina for the DWLS Summer Social!

Cocktails and light appetizers will be served.

500 16th Street #322
(16th and Glenarm, across from movie theater, 3rd floor)
Drink tickets $10 (2 tickets)

Click here to register.

We hope to see you all there!

Calendar of Events

Click the calendar to the right to view events on the web.

Other Important Events

2016 Spring Topical Conference, April 27-29, 2016 (Houston, TX)

2016 SPWLA Annual Symposium, June 25-29, 2016 (Reykjavik, Iceland)

DWLS Sponsors

Click here to view the sponsors on the website, or click on any image to contact a sponsor.
Core Lab
Digital Formation
Donovan Brothers Incorporated
Horizonal Solutions International
Stoner Engineering LLC
Mount Sopris Instruments
NMR Petrophysics
Petroleum Software Technologies
Richard L. Rosen Consulting
The Discovery Group, Inc.

Chapter Statistics


This Year

3-Year Average

# of Active members 377 345
# that are New members 8 27
# that are Students 11 9
# that are Lifetime Members 308 275
September luncheon meeting attendance 80 81
October luncheon meeting attendance 83 63
November luncheon meeting attendance 75 75
Holiday party attendance 36 59
January luncheon meeting attendance 58 97
February luncheon meeting attendance 57 88
March luncheon meeting attendance 45 87
April luncheon meeting attendance   71
May luncheon meeting attendance   74
Summer social attendance   31
The DWLS Newsletter is published monthly September through June by the Denver Well Logging Society.  For information on membership or advertising, contact the editor.  For other inquiries, contact a member of the Board of Directors.
Copyright © 2016 Denver Well Logging Society, All rights reserved.

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