Joint Interpretation of Magnetic Resonance- and Resistivity-Based Fluid [...]

When:  May 18, 2017 from 06:00 PM to 10:00 PM (CET)
Associated with  German Section

Lecture Hannover

Joint Interpretation of Magnetic Resonance- and Resistivity-Based Fluid Volumetrics – A Framework for petrophysical evaluation

Holger Thern, Geoffrey Page (Baker Hughes Inc)

Thursday, 18. May 2017

Abstract: The accurate quantification of fluid volumes is one of the most important tasks for determining the economic value of hydrocarbon reservoirs. Fluid saturation calculation from resistivity logging data has been established for many decades with known benefits and challenges. More recently, the nuclear magnetic resonance (NMR) logging technology has developed as an alternative, robust method for direct fluid volume estimation by separating movable from bound fluids. As today’s reservoirs are becoming more challenging, conventional resistivity logging data evaluation involves increasing difficulties and ambiguities, for instance in complex lithology due to the presence of conductive minerals, low formation water salinity, fractures and vugs, or local variations in water resistivity. NMR logging data processing and interpretation are also not straight-forward in complex carbonates and heavy oil reservoirs, as well as in case of wettability alteration and due to the presence of magnetic minerals. Ambiguities in either of the measurements can be efficaciously addressed by combining data from both logging services.

We present a systematic compilation and discussion of main properties affecting resistivity and NMR fluid volume estimations such as Archie parameters and T2 cutoffs. Several log examples illustrate a wide range of reservoir scenarios. In addition to the log interpretation aspect, we also relate the results to their applications ranging from real-time drilling optimization through hydrocarbon-in-place estimates and reservoir modeling input to production and completion decisions.

Biography: Holger Thern, who will be giving the lecture, is a Technical Lead for NMR research at the Celle Technology Center at Baker Hughes in Germany working with NMR technology for 18 years. Holger earned a B.A. in Physics from the University of Constance and an M.Sc. in Geophysics from the University of Cologne. His work experience includes data interpretation development and technical support for NMR wireline logging applications with Western Atlas in Houston, Texas, and the development of the MagTrak NMR LWD tool in Celle, Germany. Currently he is working on new NMR applications and interpretation methods for both wireline and LWD NMR applications.

OrtMercure Hotel Hannover, Oldenburger Allee 1, 30659 Hannover

AgendaSocial Hour 18:00, Lecture 18:30, Dinner 20:00

Anmeldung bei Heike Preusse (heike.preusse@bakerhughes.com) oder online bis Freitag, 15.05.2017. Bitte geben Sie an, ob Sie am Abendessen teilnehmen.

Sprache/Language Deutsch oder Englisch.

Eintritt (incl. Getränke, Abendessen): 
SPE und DGMK Mitglieder 35€
SPE Mitglieder reduziert (Rentner und Studenten) 10€
Nichtmitglieder 40€

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