Routine and Special Core Analysis (RCAL & SCAL)

The course aims to increase the knowledge of the geologists, geophysicists and the others who are working in the field of oil and natural gas production. This course covers the whole range of routine and special core analyses and their procedures and applications. This is a wide-ranging course that effectively covers all the core analyses techniques in drilled boreholes. The course starts with an overview of the reservoir rock properties and reservoir fluids. This is an essential factor as a background to the various coring analyses techniques and their interpretations. A full range of routine and special core analyses will be presented. The attendees will feel that they became more professional, and know more about the geologic description and exploration of the underground rocks/reservoirs using the core analyses techniques. They will be able to evaluate the reservoirs and assess their performance. The comprehensive course documentation has been designed as a useful guide for future reference.

Audience

This course is designed for:

Geologists
Petroleum Geologists
Geophysicists
Wellsite geologists
Drilling engineers
Stratigraphers
Geochemists,
Petroleum engineers
Production Engineers
Petrophysicists.

Course objectives

By end of the course participants will learn:

Core Acquisition, catching and transportation
Identify the different rock types.
Design coring programs and maximize core recovery.
Preserve core barrel to minimize rock alteration.
Know more about side well coring.
Identify the porosity and permeability for reservoir rocks.
Know the factors controlling the porosity and permeability.
Know the different porosity-permeability relationships and Models.
Apply the quality control for the obtained core data.
Know the identity of reservoirs and traps.
Calibration of well logs and integration with core data.
Formation Evaluation using core analysis.
Select samples for special core studies.
Know the electric properties of sedimentary rocks.
Know more about resistivity of rocks and measuring Archie’s parameters.
Know more information on the MICP test.
Know more about relative permeability and wettability.
X-ray computer tomography (X-ray CT scan)

Course contents

Day-1: Coring, Core acquisition and Pore Volume Measurements (RCAL)

– Different coring programs, catching, preservation and transportation.

– Sample Preparation for Petrophysical measurements and petrographical studies.

– Depth matching.

– Studying the petrography of porous rocks and their diagenetic history.

– Porosity and the different classifications of pore spaces.

– Measuring porosity and density.

– Factors governing porosity values.

Day 2: Pore Conductivity; Measuring and characterization (RCAL)

– Permeability and classification of Permeability.

– Measuring Permeability.

– Factors affecting the magnitude of permeability values.

– Specific and relative Permeability.

– Porosity-Permeability relationships and Models.

– Formation evaluation using conventional core data.

– Well log calibration using the routine core analysis.

Day 3: Electric Properties (SCAL)

– Selecting samples for special core analysis (SCAL).

– Design unconventional reservoir analytical protocol.

– Apparent and true electric resistivity.

– Formation resistivity factor.

– Factors controlling the electric properties.

– Determination of Archie’s parameters, a, m and n.

– Case Studies.

Day 4: Wettability and Relative Permeability (SCAL)

– Relative Permeability measurements.

– Wettability.

– Mercury Injection Tests (MICP); theory and applications.

– X-ray computer tomography (X-ray CT scan).

– Case Studies.

Day 5: NMR Measurements (SCAL)

– Nuclear Magnetic Resonance (NMR); concepts and applications.

– NMR diffusion for fluid-type discrimination using T1, T2 relaxations.

– Reservoir characterization using SCAL data.

– Case studies.

– Workshop on reservoir characterization.

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