COURSE OVERVIEW:

Carbonate Petrophysics: Rock Typing and Saturation Modeling is a highly technical course focused on solving the complex interpretive challenges posed by the extreme heterogeneity of carbonate reservoirs. Unlike sandstones, carbonates possess a wide variety of pore types, ranging from interparticle and moldic to vuggy and fractured, which often behave independently of total porosity. This course provides the rigorous framework necessary to classify these rocks into meaningful hydraulic units and to accurately model the distribution of fluids within the reservoir.

The scope of this training involves the integration of multi-scale data, including thin-section petrography, Mercury Injection Capillary Pressure (MICP), and advanced wireline logs such as NMR and Image Logs. Participants will master the various rock-typing schemes, such as the Lucia and Pittman methods, and learn how to relate these geological descriptions to petrophysical properties like permeability and water saturation. This integrated approach is essential for building robust static and dynamic models that can reliably predict reservoir performance.

Furthermore, the course addresses the sophisticated methods required for saturation modeling in carbonates, where traditional Archie-based techniques often fail due to complex pore geometries and varying wettability. Participants will explore the use of Saturation-Height Functions (SHF) and the Leverett J-Function to reconcile log-derived saturation with capillary pressure data. By the end of this course, petrophysicists and geologists will be able to deliver accurate hydrocarbon-in-place estimates and identify overlooked pay zones in complex carbonate successions.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Explain the physical reasons why carbonate petrophysics differs from clastics.
• Classify carbonate pore systems using industry-standard schemes (Lucia, Choquette-Pray).
• Conduct a systematic rock-typing workflow integrating core and log data.
• Analyze Mercury Injection Capillary Pressure (MICP) curves for pore-throat characterization.
• Calculate permeability using advanced empirical and deterministic models.
• Evaluate the impact of secondary porosity (vugs and fractures) on log response.
• Utilize Nuclear Magnetic Resonance (NMR) for fluid typing and pore-size distribution.
• Apply the Archie equation and modify its parameters for complex carbonate fabrics.
• Develop robust Saturation-Height Functions for reservoir-wide fluid modeling.
• Calibrate log-derived water saturation with core-based capillary pressure data.
• Identify different rock types using clustering techniques from wireline logs.
• Determine the Free Water Level (FWL) and transition zones in carbonate reservoirs.
• Assess the uncertainty in petrophysical estimations for carbonate volumetrics.

TARGET AUDIENCE:

Petrophysicists, Reservoir Engineers, and Geoscientists specialized in the characterization and modeling of complex carbonate reservoirs.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximise the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.