COURSE OVERVIEW:

Multicomponent Seismic and PS Wave Interpretation is a specialized course focusing on the use of shear waves (S-waves) alongside traditional pressure waves (P-waves) to image the subsurface. By recording three orthogonal components of ground motion (3C), geophysicists can capture converted waves (P-to-S) which provide unique information about rock properties, fluid content, and fracture orientation. This course explains the physical advantages of shear waves, such as their ability to travel through gas-saturated zones that typically "wipe out" P-wave signals.

The coverage includes the technical challenges of processing and interpreting converted wave (PS) data, including the management of the "shear wave window" and the correction for shear wave splitting (anisotropy). Participants will learn how to correlate PP and PS datasets in time and depth, which is essential for calculating Vp/Vs ratios a key indicator of lithology and pore pressure. The scope also addresses the application of multicomponent data in characterizing fractured reservoirs, where S-wave birefringence can reveal the density and direction of natural fracture networks.

Furthermore, the course addresses the practical integration of multicomponent data into the reservoir characterization workflow. Attendees will explore how PS waves improve the imaging of reservoir boundaries in areas with low P-wave impedance contrast and how they assist in discriminating between fluid effects and lithology variations. The curriculum focuses on both offshore (using 4C ocean-bottom nodes) and onshore (using 3C geophones) applications. By the end of the course, participants will be able to interpret multicomponent datasets to reduce risk in complex exploration and development projects.

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

• Define the fundamental physics of P-waves and S-waves in porous media.
• Explain the mechanism of P-to-S wave conversion at geological interfaces.
• Identify the advantages of converted waves in gas-cloud imaging.
• Correlate PP and PS seismic volumes using Vp/Vs ratios.
• Utilize Multicomponent data for enhanced lithology and facies discrimination.
• Analyze Shear Wave Splitting to determine fracture orientation and density.
• Interpret Vp/Vs maps to identify "sweet spots" in unconventional reservoirs.
• Explain the concepts of 3C geophones and 4C (OBC/OBN) recording systems.
• Manage the complexities of PS-wave binning and stacking.
• Utilize S-waves for imaging beneath high-velocity layers (Salt/Basalt).
• Apply Multicomponent data to improve pore pressure prediction.
• Discriminate between lithology and fluid saturation using S-wave data.
• Evaluate the impact of multicomponent imaging on well placement.
• Formulate an acquisition and processing strategy for multicomponent surveys.

TARGET AUDIENCE:

Geophysicists, Interpretation Geologists, and Reservoir Engineers who want to utilize shear wave data for advanced reservoir characterization.

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.