fesaus’ july 2026 technical meeting:

“Unlocking NMR Data – A Case Study on the Jansz-Io Field”.
Meretta Qleibo (SLB)

Abstract:
In petrophysical workflows, nuclear magnetic resonance (NMR) logging is routinely used to identify bound and free fluids and to estimate permeability, and these applications are well understood and widely applied across the industry. However, conventional NMR processing workflows typically extract only a limited subset of the information contained within the full porosity distribution and can be difficult to apply consistently, particularly when data are acquired using different tools, vendors, conveyances, and mud systems. This often limits the ability to compare wells directly or to use NMR beyond basic petrophysical interpretation.

This work introduces an AI-assisted NMR workflow designed to transform NMR porosity distributions into a consistent and extensible dataset suitable for facies and textural analysis. The application of this approach is demonstrated in the Jansz–Io Field, offshore Western Australia, where NMR data from multiple vendors and wellbore conditions are combined into a unified framework. The resulting AI-derived NMR facies capture variations in pore structure and reservoir quality not resolved by conventional logs alone and support a wider range of applications, including reservoir characterization, geological modeling, and completion design. While this work focuses on 1D NMR T2 data, similar AI tools are now being developed for 2D NMR T1–T2 maps, providing additional applications for NMR data in reservoir studies.

About the Presenter:
Meretta Qleibo is a senior domain petrophysicist with SLB based in Perth, Australia. She started her career as an SLB wireline field engineer and has worked in training and log interpretation before specializing in LWD measurements. Meretta holds a Master’s degree in petroleum engineering from Heriot-Watt University.

Tuesday July 14th, 2026 | 12:00-13:30 | Faraday’s ‘Stateroom’ (216 St Georges Tce, Perth, WA 6000) and online.

Registration has closed for this event.