Abstract
Unconventional rocks can be characterized as exhibiting one or more of the following; low-permeability (K<0.1 mD), high clay content, high organic content, high stress sensitivity. Because of these properties "standard" core analysis methods must be modified to obtain accurate data. Some standard measurements, even with modification, cannot provide data representing a useful reference frame. This talk will review measurements of porosity, saturation, permeability, capillary pressure, and relative permeability and issues that arise in measurement. Topics of interest to be discussed include:
- Plug and 'crushed-rock' permeability – How and why do plug and crushed sample permeabilities differ, initial volume investigated, particle size influence.
- Dean-Stark vs retort – differences with clay and organic content and solvents
- Mercury injection capillary pressure – the confining stress death-spiral, amalgamation, and bound phases.
- Stress dependence – As permeability decreases the importance of this increases.
- Hysteresis – how did you get that saturation state? Is that rock on a drainage or imbibition curve? What was that sample’s previous stress state?
- Relative permeability – there are some measurements you just can’t do (and how we get around it with image-based rock physics – which has its own methodology issues).
Ultimately all quality measurements provide repeatable data that represent a property at a specified PVTXt (Pressure-Volume-Temperature-Composition-time) state. Key questions that must be answered are; Is the PVTXt state useful? Can values measured at that state be transformed to a PVTXt state of interest (e.g., reservoir)?
Speaker Biography
Alan Byrnes has a BS in Geology from the University of Illinois at Chicago and MS in Geophysical Sciences from the University of Chicago. Over 40 years Alan has worked as a Research Geologist, Petrophysicist, and Project Manager at the Institute of Gas Technology, Marathon Oil Research, Core Laboratories, and the Kansas Geological Survey; owned the special core analysis laboratory, GeoCore; was Chief Petrophysicist at Chesapeake Energy and C12 Energy, and is presently Senior Petrophysical Advisor at Whiting Petroleum. His work includes 37 peer-reviewed publications, 86 technical publications, and 100+ abstracts on rock properties, oil/gas field and laboratory studies, basin- and geo-modeling, reservoir characterization, integration of geologic-petrophysical-engineering analysis, phase equilibria, and geophysics.
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From the VP - Technology
Patricia Rodrigues
The RMAG/DWLS Fall Symposium (October, 22nd, 2019) call for abstracts has been extended to May 8th!
MULTISCALE IMAGING FOR RESERVOIR OPTIMIZATION
If you have an interesting topic to share about how images in nano, micro, macro scale (from SEM to image logs from CT scans to hydraulic fracture mapping) helped improve your reservoir characterization and optimization. send us an abstract today!
Please submit abstracts to Katerina Yared, kyared@sm-energy.com.
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From the Past President
Sam Fluckiger
It’s that time of year again. Please take a few moments to cast your vote in support of the incoming 2019/2020 Board of Directors. If you get a chance, please take a moment to introduce yourself to the incoming board members at the next monthly luncheon.
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From the President
Shannon Borchardt
It is hard to believe May is already here and we are winding down the 2018-2019 Denver Well Logging Society calendar year. When I think back about the last eight months, I am very proud to have been associated with such a great society.
I would like to express a sincere thank you to the entire DWLS board for all the behind the scenes effort required to continue to make DWLS the success it is today. I would also like to thank those new members who have volunteered their time to serve on the board next year.
If you would like to give a presentation about the topic of ‘Multiscale Imaging for Reservoir Optimization’ there is still time to get your abstract in for the Fall 2019 RMAG DWLS conference. Specific topics of interest include imaging at all scales, SEM, modeling and applications of reservoir characterization for conventional reservoirs, unconventional reservoirs, EOR, completions and production, etc. If you are interested in submitting an abstract or sponsorship opportunities, please contact Katerina Yared (kyared@sm-energy.com).
Lastly, I would like to wish all of you a very safe and happy summer. Enjoy time outside and with your families.
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Calendar of Events
Click the calendar to the right to view events on the web.
Other Important Events
2019 SPWLA Annual Symposium, June 16-19, 2019 (The Woodlands, TX)
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DWLS Sponsors
Click here to view the sponsors on the website, or click on any image to contact a sponsor.
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Chapter Statistics
Statistic
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This Year
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3-Year Average
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| # of Active members * |
308 |
376 |
| # that are New members |
23 |
5 |
| # that are Students * |
3 |
10 |
| # that are Lifetime Members * |
262 |
297 |
| September luncheon meeting attendance |
44 |
57 |
| October luncheon meeting attendance |
29 |
62 |
| November luncheon meeting attendance |
43 |
55 |
| Holiday party attendance |
35 |
37 |
| January luncheon meeting attendance |
73 |
67 |
| February luncheon meeting attendance |
72 |
60 |
| March luncheon meeting attendance |
60 |
45 |
| April luncheon meeting attendance |
50 |
47 |
| May luncheon meeting attendance |
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51 |
* Note that we did a thorough cleanup of bad email addresses that resulted in some of our members being removed until they can be tracked down again. So this year's membership numbers are going to be a bit lower.
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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.
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