Date(s) - 11/13/2018
11:30 am - 1:00 pm
Outcrop and subsurface geology applied to drilling, sweet spot and target zone detection of resource shales:
The Woodford example
Roger M. Slatt1; Henry Galvis-Portillo 1, 2; Daniella Becerra-Rondon1, 2; Naya Ikwanife 1,3; Richard Brito 1,4; Jing Zhang1; Carlos Molinares1; David Duarte1; Benmadi Milad1
1Institute of Reservoir Characterization, School of Geology and Geophysics, University of Oklahoma; email@example.com
- Department of Geosciences, The University of Calgary, Calgary, Canada
- Baker Hughes, a GE company, Houston, Texas.
4Newfield Exploration Co. The Woodlands, Texas
The unconventional ‘shale boom’ has spawned a variety of techniques, some new and some old which, when combined, can provide both general and detailed screening and characterization of shale reservoirs. A typical characterization which is ‘rock oriented’, such as what we do, focuses on outcrop and subsurface cores which are sampled for a variety of low-cost rock analyses, including: Chemical (XRF) and mineralogical (XRF, XRD, petrography) composition and stratification, hardness (Leeb rebound hardness tester); microfabric, porosity and permeability (SEM); organic content (TOC, RockEval, biomarkers); fractures/folds (visual observations); 2D and 3D seismic volumes, and biostratigraphy (if biota are present) This data set can then be combined with well logs and/or seismic to determine depositional environment, measure long-/short-distance lateral continuity of strata away from the wellbore, determine fracturability (brittle vs. ductile rock), categorize reservoir quality (porosity and permeability), identify preferred landing zones, and predict the potential for fractures to hold open or to close on proppant. These features provide important screening and characterization criteria for geoscientists and other decision-makers. An example of the analysis, utility and application of these techniques is provided of the Woodford Formation, which is currently the 3rd most active unconventional shale play in the U.S.
Roger M. Slatt is the Gungoll Family Chair Professor in Petroleum Geology and Geophysics at University of Oklahoma and Director of the Institute of Reservoir Characterization in the Sarkeys Energy Center at OU. He was Director of the School of Geology and Geophysics and Eberly Family Chair Professor at University of Oklahoma from 2000-2006, and the Gungoll Chair Professor of Petroleum Geology and Geophysics in 2006-07. He formerly was Head of the Department of Geology and Geological Engineering at Colorado School of Mines (1992-2000) and Director of the Rocky Mountain Region Petroleum Technology Transfer Council (1995-2000). He has published approximately 150 articles and abstracts and is author/co-author/editor of 6 books on petroleum geology, reservoir geology, sequence stratigraphy, clastic depositional systems, geology of shale, and deepwater sedimentary processes. He has been an AAPG and SPE Distinguished Lecturer, and presents courses internationally for industry and government organizations, in addition to OU students. He is the recipient of the AAPG Distinguished Service Award, the Esso Australia Distinguished Lecturer in Petroleum Geology, AAPG Honorary Membership, AAPG Grover Murray Distinguished Educator Award, Society of Exploration Geophysicists (SEG) Special Commendation Award, and most recently the 2012 Jules Braunstein Memorial Award for co-authoring a poster with colleague Younane Abousleiman on ‘Merging sequence stratigraphy and geomechanics for unconventional gas shales”. He has graduated more than 100 M.S. and Ph.D. students while at OU.
Luncheon Sponsor: Columbine Logging
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