Meet Our Team

Eugene Craig Phillips is a Petrophysicist with over 35 years of experience and Co-Founder of Crested Butte Petrophysical Services. He is a highly skilled Petrophysicist who has concentrated on the Petrophysical Characterization of complex reservoirs using core analysis, rock typing, core-log integration, conventional and specialized log interpretation including nuclear magnetic resonance (NMR) processing and interpretation. He spent over 12 years with Saudi Aramco as a Senior Petrophysical Consultant, where he worked on a applied research team that developed the methodology to perform full pore system characterization and modeling of carbonate reservoirs based on Rock Typing tied to capillary pressure from over 1,700 capillary pressure measurements. The results of this work revolutionized the way Saudi Aramco characterized, modeled and simulated their carbonate reservoirs.

Starting in 2010 to 2014 Mr. Phillips worked for Quantum Reservoir Impact (QRI) evaluating the challenging Pemex Cretaceous and Jurassic reservoirs of the Cantarell and KMZ complexes. Specialized techniques were developed to assess secondary porosity, the predominant control over the storage and flow capacity of most of these reservoirs. In these offshore complexes the seconday porosity was in the form of fractures as well as a vast system of solution features. Logging tools like Borehole Image logs and full waveform sonic data were used to quantify the secondary porosity and partition the reservoir into the matrix and secondary porosity components.  This dual-porosity model was then tied to capillary pressure to model OOIP in the 3D static models as well as used in rock typing for the dynamic modeling of these reservoirs. 

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Pedro Anguiano Rojas is a Petrophysicist with over 30 years of experience. He built the modeling software INVERLOG, while working for the Mexican Petroleum Institute, to help to reevaluate mature fields with old logs. While at this institution, he founded the log-modeling and inversion group, which has yielded several successful methodologies. After working with the Mexican Petroleum Institute in Mexico, he worked for Saudi Aramco from 2011 to 2013, where he was the resistivity-logging specialist in the Reservoir Description Division. While at Saudi Aramco he developed software to model the response of LWD tools to perform geosteering by modeling the resistivity of the surrounding medium. From 2013 to 2015, he joined QRI as Senior Advisor in Reservoir Characterization. He successfully modeled electric anisotropy produced by the drilling fluid invasion in fractured formations (carbonates) and corrected this effect, showing that the OOIP was approximately 18% higher than estimated (this was confirmed by reservoir simulation history matching) . He also proposed and showed, as a proof of concept, the applicability of the borehole gravimeter to detect more accurately fluid changes (for dual displacement) and to measure accurately rock porosity, especially where vugs and caverns are present. From 2015 to 2019, Pedro worked for PetroBal, as head of Petrophysics, where he processed and interpreted the logs of different assets. He pinpointed the best asset from a series of bidding processes. The drilling and testing of new wells in this and other areas confirmed the prediction.
Pedro’s main interests are inversion theory (interpretation) and its applications, and modeling in geophysics and petroleum engineering.  Pedro Anguiano-Rojas received a B.S. degree in Geophysical Engineering from UNAM, Mexico. He then obtained an M.S. degree in Geomathematics from Stanford University and a Ph.D. in Geophysics from the Colorado School of Mines. Dr. Anguiano-Rojas is a member of SPE, SPWLA, and SEG.
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David Kersey worked for Core Laboratories fourteen years as Supervisor of Petrographic Studies, Manager Reservoir Description and Director, Integrated Studies. He also worked for Schlumberger as an Image Log Specialist and Gulf Oil (Indonesia) as an Exploration and Development Geologist delineating gas fields and certifying reserves. 
David Kersey worked for Saudi Aramco for seventeen years and recently retired as a Senior Petroleum Engineering Consultant.  During his tenure with Aramco, he worked as a senior Petrophysicist in the Reservoir Description Division and as a Petroleum Engineering Consultant in the Reservoir Description and Simulation Department. He also was responsible for curricula and content development for Aramco’s in-house training center for nine upstream job families.  In addition, he served as the Chairman of the Petroleum Engineering Technologist Development Program, which developed and oversaw customized technical training programs for mid-level and senior engineers. 
David has an undergraduate degree in Geological Sciences (University of Southern California) and a graduate degree in Geological Sciences (Harvard University). He has authored and co-authored over 70 technical papers.  David is a Life Member of the Society of Petroleum Engineers (SPE) and in 2016 the SPE recognized him as a Distinguished Member”.  He has also been recognized three times as an “Outstanding SPE Technical Editor” Additionally, he also received two regional SPE Service Awards.

Chris is a Senior Geological adviser with over 37 years industry experience. He began his career with Mobil Oil in Dallas Texas in 1982 and after several U.S. postings including Lafayette, Houston and New Orleans, Chris was seconded to Saudi Aramco in 1991 and in 1996, he joined Saudi Aramco permanently. While in New Orleans with Mobil, Chris was an Associate Professor at Tulane (1990 and 1991) in the Petroleum Engineering Department where he taught Gulf Coast Geology. Chris made an immediate impact at Saudi Aramco where through core and image log studies he redefined the (Permo-Carboniferous) Unayzah reservoir depositional environment as Aeolian rather than the accepted marginal marine interpretation. This discovery changed both the way Aramco explored for the Unayzah as well as the geological modeling and development drilling of the reservoir. He is a strong proponent of using analogs, both outcrop and modern, to guide the geological thinking behind, and ultimately the modeling of, stratigraphically complex reservoirs.

With an Aramco career spanning twenty years, most of which in reservoir characterization and development, Chris was actively involved in placing several hundred development wells in the highly compartmentalized Permian Unayzah and Devonian Jauf reservoirs. His experience includes: horizontal, highly slanted and multi-lateral wells, conventional gravel packs, oriented perforations, frac-and-packs and conventional completions. The reservoirs ranged in depth from 6,000 feet to 20,000 feet with variable degrees of consolidation from friable to tight. In addition, he was responsible for the geological input for over forty geocellular models for fields including Hawtah, Ghinah, Umm-Jurf, Layla, Usaylah, Nuayyim, Abu-Jifan Tinat, Haradh, Hawyiah, Uthmaniyah, Madrikah, and the Wafra-Wara Fm. in the neutral zone.

Chris spent two years with the new Upstream Ventures Department where one of the main targets is the Unayzah reservoir. In this capacity, Chris provided geological technical support to the Joint Venture companies. Chris was very active in the Aramco training program where he taught several courses for both the geology and petroleum engineering programs. He has lead over thirty geological field trips and is a firm believer in the benefits of fieldwork and the use of outcrop analogs in reservoir mapping, modeling and reservoir characterization. Chris served as the Professional Development Advisor (PDA) for the Exploration Organization, as well as the Subject Matter Expert (SME) for clastic reservoirs and reservoir characterization. After retirement, Chris joined QRI in October 2010 and worked in Mexico on the off-shore Jurassic sandstones and Cretaceous carbonate fields of the Cantarell complex. January 2014 to August 2015 Chris worked the Upper & Lower Burgan reservoir development project. The Burgan sandstones are the most prolific producers in Kuwait. 

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Chris was an active member of the Dhahran Geoscience Society where he held several offices and is an active member of the AAPG where he has served as a delegate representing the Middle East for over 10 years. Chris also served on several AAPG committees including the international regions committee, AAPG Research Committee, Visiting Geologist Program, and Reservoir Geology Committee. He was a session chair in Perth, Cape Town and San Antonio and Cancun and in Cape Town he was the oral sessions co-chair for the Technical program. Chris served as the AAPG Middle East Region Vice President from June 2005 – 2009 and was an AAPG International Distinguished lecturer for 2009 & 2010. 

Education 

1978 Bachelor’s degree, Penn-State University

1983 Masters Geology, University of Tennessee

1991 Masters Petroleum Engineering, Tulane University

2004 Successfully defended his PhD. in Geology University of Aberdeen

Awards: 

·         Best poster Geology in Geo 2002. 

·         Best oral paper in Geology Geo 2004. 

·         Best oral paper in Geology Geo 2006. 

AAPG International Distinguished lecturer