[CCoE Notice] SPWLA Guest Lecturer on Friday at the ERP

Wed Apr 24 09:40:22 CDT 2019

SPWLA Lecture
When: Friday April 26th, 2019 11:00am - 12:00pm
Location: ERP 4 Room 110

Join us to hear Jesus M. Salazar from Marathon Oil and President SPWLA Houston

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Jesús M.  Salazar received Ph.D.  and M.S.  degrees  in  Petroleum  Engineering  from  The  University  of  Texas  at  Austin  (2004  and  2008,  respectively)  and  a  B.S.  in  Physics  with  honors  from  Universidad  Central  de  Venezuela  (1998). Since late 2018, he works as a Petrophysicist for Marathon Oil in Houston looking for new opportunities within the Permian Basin Growth team. Previously, Jesús worked 11 years with ConocoPhillips in Houston, Australia, and Canada in technology and exploration assignments developing and deploying new workflows for US and international reservoir characterization projects.  Prior  to  ConocoPhillips,  Jesús  worked  five  years  for  the  Center  for  Petroleum  Engineering  at  the  University  of  Texas,  in  Austin,  TX  as  a  research  assistant  and  five  years  for  PDVSA  in  Venezuela  as  a  Petrophysicist  and  Reservoir  Development  Engineer  where  he  started  his  career  in  1997.  Jesús  also  worked  for  Occidental  Oil  and  Gas  as  a  summer  intern,  in  Bakersfield,  CA  and  Houston,  TX.  Before being elected as the SPWLA President for 2019-2020, he  had  been  the  president,  vice  president,  and  secretary  of  the  Houston  Chapter  of  the  SPWLA, and the VP  Technology  and  Technical  Chairman  for  the  2018  SPWLA Symposium.  Jesús  is  a  former  Associate  Editor  for  Case  Studies  in  Petrophysics  (SPWLA)  and  currently  the  co-Executive  Editor  for  the  journal  SPE  Reservoir  Evaluation  &  Engineering

A practical petrophysical model for a source rock play: The Mancos Shale

Recently, the focus in source rock exploration has moved from gas-rich to liquid-rich plays and warrants revisiting “bypassed” hydrocarbon charged source rocks, which were deemed uneconomic when first drilled. In North America’s oil fields, there are thousands of wells with different vintages of nuclear and electrical logs, yet these wells generally lack any advanced logs beyond the traditional triple combo. We have developed a workflow that uses a considerable amount of laboratory measurements made on crushed rock to upscale a petrophysical model based on a triple combo logging suite only. The model divides the field (laterally) in oil window and gas window fairways and (vertically) in petrophysical units. The remaining hydrocarbon generation potential is based on geochemical measurements, such as thermal maturity and total organic carbon content (TOC), from core and cuttings in the area. The petrophysical units reflect major geologic intervals with similar porosity and clay content. The workflow was sequentially built by correlating logs with core measurements, using TOC and maturity for organic matter, X-ray diffraction for mineralogy and grain density, porosity, and water saturation from fluids extraction, for volumetrics. The model is applied to the Mancos Shale (New Mexico, USA), a Cretaceous-age source rock, which includes the Niobrara Formation. The Mancos Shale has been penetrated in various fields while developing conventional sandstone reservoirs. The model is validated with measurements on a core recently acquired in the anticipated high-hydrocarbon-yield window. Petrophysical properties predicted from logs agree well with core measurements in blind tests, demonstrating the robustness of the model despite being based on a basic suite of logs and a simple deterministic approach. This model is now routinely used by the asset team as an automated workflow to generate fairway maps, locate sweet spots, and for landing lateral wells.

Read More: https://library.seg.org/doi/abs/10.1190/int-2017-0014.1

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