WHAT WE HAVE LEARNED FROM THE PETROPHYSICAL EVALUATION OF THE VACA MUERTA FORMATION IN THE LAST 5 YEARS OF UNCONVENTIONAL SHALE PLAY DEVELOPMENT

Downtown Houston

Speaker:

Seminar Date: Oct 24 2020

Registration Opens: Jun 17 2020 - Oct 23 2020

Time: 12:00 PM - 01:00 PM (US CDT)

Admission/Registration Link: https://attendee.gotowebinar.com/register/6037051518608181259

Meeting/Webinar Link: None

Contact: Hyungjoo Lee (, SPWLA Houston Chapter)

Corresponding: vpdowntown@spwla-houston.org

Fees: FREE

ABSTRACT:

The Vaca Muerta formation is one of the unconventional shale play reservoirs considered a “world-class reservoir”. Its thickness opens the possibility to develop more than one landing zone. Petrophysical and geomechanical evaluations are necessary to identify these landing, however their characterization is complex and have progressed through time gaining complexity and detail. The current petrophysical models resolves nine minerals using the latest technology of electrical logging, this model has been calibrated with core data by implementing multivariable analysis. The calculation of total water and clay bound water with resistivity-free methods was another technical challenge achieved. The formation evaluation with logs also characterize the hydrocarbon and kerogen properties as a function of maturity. This is because both components represent a large portion of the rock volume in this formation. Today, it is possible also to characterize the variability of the pore and fluid system by analysing data from Scanning Electron Microscope, Nuclear Magnetic Resonance and electrical logs. The interpretation of this information is carried out with multivariable analysis and helps to understand the heterogeneity of the reservoir.

BIOGRAPHY:

Alberto Cesar Ortiz is a principal petrophysicist of YPF S.A. Argentina. He graduated in geology at the University de Córdoba. He started in Total Austral in 1997 and three years later, he joined Schlumberger as a petrophysics based in Argentina and Brazil focused on formation evaluation using wireline and logging while drilling measurements. In 2011, he joined YPF in Buenos Aires, Argentina and since 2013 is a member of the unconventional shale play reservoir characterization

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