Seismic Resolution — Vertical & Horizontal Introduction Resolution determines how small a geological feature seismic data can detect. Understanding vertical and horizontal resolution is essential for interpreting thin beds, faults, and stratigraphic features. These limits define what seismic can and cannot reveal — helping interpreters avoid over‑interpretation. 1. Vertical Resolution Vertical resolution is controlled primarily…
Rock Physics — Fundamentals Introduction Rock physics links seismic data to geological properties. It explains how rocks respond to stress, fluids, and seismic waves, forming the foundation of AVO, inversion, and reservoir characterization. 1. What Is Rock Physics? Rock physics studies the relationships between: Elastic properties Lithology Porosity Fluids Pressure It connects seismic measurements to…
Full Waveform Inversion (FWI) — A Complete Overview Introduction Full Waveform Inversion (FWI) is one of the most advanced technologies in seismic imaging. It uses the entire seismic wavefield — not just reflections — to estimate high‑resolution velocity models. FWI has transformed subsurface imaging in complex environments such as salt bodies, carbonates, and deepwater…
Seismic Facies — Understanding Subsurface Patterns Introduction Seismic facies analysis is a powerful interpretation technique that groups seismic reflections based on their patterns, textures, and attributes. These facies help interpreters understand depositional environments, reservoir architecture, and stratigraphic variability. Seismic facies are essential for reservoir characterization, geomodeling, and stratigraphic interpretation. This article explains what seismic…
Seismic Inversion — Fundamentals Introduction Seismic inversion transforms seismic reflection data into quantitative rock‑property estimates. Instead of interpreting amplitudes alone, inversion provides volumes of acoustic impedance, elastic properties, and lithology indicators. These outputs are essential for reservoir characterization and geophysical modeling. This article explains what seismic inversion is, how it works, and why it matters….
What Is AVO? (Amplitude Variation with Offset) Introduction Amplitude Variation with Offset (AVO) is one of the most powerful tools in seismic analysis. It examines how seismic amplitudes change with increasing offset or angle, providing insights into rock properties and fluid content. AVO is essential for hydrocarbon detection, reservoir characterization, and rock‑physics workflows. This article…
Advanced Seismic Attributes — Beyond the Basics Introduction Seismic attributes have evolved far beyond simple amplitude, phase, and frequency measurements. Today’s interpreters rely on advanced attributes to reveal subtle geological features, improve reservoir characterization, and support AI‑driven workflows. These attributes extract deeper meaning from seismic data, highlighting patterns that are invisible in the raw volume….
What Is a Velocity Model? Introduction Velocity models are essential for seismic processing, imaging, and time‑depth conversion. They describe how fast seismic waves travel through the subsurface and are used to correct, migrate, and interpret seismic data. Without an accurate velocity model, seismic images become distorted and unreliable. This article explains what velocity…
Seismic Interpretation — Fundamentals Author: Your Name Published: April 2026 Category: Seismic Data Management → Interpretation Introduction Seismic interpretation is the art and science of extracting geological meaning from seismic data. It transforms seismic reflections into an understanding of the subsurface — mapping faults, horizons, stratigraphy, and reservoir architecture. Interpretation sits at the center of…
Seismic QC — What It Is and Why It Matters Introduction Quality control (QC) is essential at every stage of the seismic workflow — from acquisition to processing to interpretation. Without proper QC, seismic data can become unreliable, leading to incorrect geological conclusions and costly mistakes. This article explains what seismic QC is, why…