World-class training for the modern energy industry

Onshore Seismic Processing and Imaging (G081)

  • TypeType: Classroom, Virtual
  • TypeDiscipline: Geophysics
  • TypeDuration: 2 days

Tutor(s)

Ron Kerr, Independent seismic processing QC consultant and David Kessler, President of SeismicCity.

Overview

This course will introduce the fundamentals of land seismic acquisition including receiver types and their spectrum indication. Land-based seismic data presents unique challenges, and the course will subsequently follow the processes after acquisition to include all the main processing steps of a modern land 3D dataset.

Duration and Logistics

Fundamental. Intended for geoscientists who work with seismic data and are also required to understand land seismic acquisition and processing projects and work with imaging professionals.

Objectives

You will learn to:

  1. List common onshore seismic source and receiver types and their spectrum indication.
  2. Describe source/receiver line spacing & intervals and their relationship to acquisition footprints and seismic resolution.
  3. Have a clear picture of main processing steps affecting phase and amplitude and understand the concepts of surface-consistency.
  4. Explain in plain language how FWI works and the key factors to velocity model building.
  5. List the types of data used in data processing.
  6. Identify the main components of the seismic wavefield and what they are used for.
  7. Describe the main collections/domains for manipulating seismic data.
  8. Explain the main steps in a processing sequence.
  9. List the main types of noise and describe attenuation methods for these.
  10. Describe the various velocities used in seismic and how to access them.
  11. Identify multiples and explain methods to attenuate them.
  12. Discuss the need for regularization.
  13. Describe the migration process and list the difference between Time/Depth Migrations.

Level and Audience

Classroom version: A 2-day classroom course day including a mix of lectures and exercises. The manual will be provided in digital format and participants will be required to bring a laptop or tablet computer to follow the lectures and exercises.

Virtual version: Four 3.5-hour interactive online sessions presented over four days (mornings in North America and afternoons in Europe). Digital course notes and exercise materials will be distributed to participants before the course. Some exercises may be completed by participants off-line.

A 2-day classroom course day including a mix of lectures and exercises. The manual will be provided in digital format and participants will be required to bring a laptop or tablet computer to follow the lectures and exercises.

Virtual version: Four 3.5-hour interactive online sessions presented over four days (mornings in North America and afternoons in Europe). Digital course notes and exercise materials will be distributed to participants before the course. Some exercises may be completed by participants off-line.

Course Content

Session 1: Onshore seismic data acquisition and processing

We will start with the basics and fundamentals of land seismic acquisition and an overview of basic seismic terms. Common onshore seismic source and receiver types and their spectrum indication will be presented.

We will provide a clear picture of main processing steps affecting phase and amplitude and understand the concepts of surface-consistency. These steps include explanation of all the terms you may have heard of but might not be entirely familiar in understanding including refraction statics, denoise, deconvolution, velocities, and 5D interpolation, as well as many steps that are not as well-known such as: geophone compensation, geometry qc, and residual statics. The main types of noise will be shown and we will describe attenuation methods.

The various data types used in data processing will be presented. Reviewing the main steps included in a processing sequence, data examples will be used. This includes data regularization. The examples include simplified graphics and real-data examples. This behind-the-scenes look is important; decisions made during pre-processing can affect any prospect. You will learn why these steps are run and what to look for when a vendor is processing your land dataset. No math is required.

Session 2: Seismic wave propagation, migration, velocities, anisotropy and model building

We will start this session by reviewing seismic wave propagation in Elastic media. Seismic forward modeling describes wave propagation in the sub-surface is inherent in processing. We will identify the main components of the seismic wavefield and what they are used for.

Using both wave and ray equations, we move to discuss how these equations are used for application of depth migration. We will describe how ray based and wave-based migrations work and will explain the differences between RTM based on the acoustic wave equation and the elastic wave equation. The difference between Time and Depth Migration will be explained.

Next, we will cover the foundations and use of velocity estimation techniques and will analyze the advantages and limitations of each. We will describe the various velocities used in seismic imaging and how to they are constructed from the seismic data. We will demonstrate ray-based reflection tomography as well as wave based Full Waveform Inversion (FWI). Special attention will be given to describe how each method is used in velocity model building.

We will then review anisotropy used in seismic processing and imaging. A complete workflow including all steps used in model building and depth imaging project will be provided.

 

Courses

Upcoming Courses

Explore More
Calendar13 - 15 Aug 2024
LocationHouston
TutorsMark Rowan

Salt Tectonics of the Gulf of Mexico (G092)

Price
USD $4,000.00 excl VAT
Register
Calendar23 - 27 Sep 2024
LocationVirtual
TutorsAlex Bump, Seyyed Hosseini, Katherine Romanak

Geologic Carbon Storage for Geoscientists and Engineers (E551)

Price
USD $2,500.00 excl VAT
Register
Calendar30 Sep - 4 Oct 2024
LocationColorado and Utah
TutorsKate Giles, Cindy Yeilding

Women in Energy Field Experience: The Role of Salt in Hydrocarbon Exploitation, Energy Storage and Carbon-reduction Mechanisms, Paradox Basin, Utah and Colorado (G084)

Price
USD $9,750.00 excl VAT
Register
Calendar14 - 17 Oct 2024
LocationVirtual
TutorsJonathan Evans

Geology for Non-geologists (G088)

Price
GBP £1,560.00 excl VAT
Register
Hydrogen symbols
Calendar21 - 22 Oct 2024
LocationVirtual
TutorsKatriona Edlmann

The Hydrogen Landscape: Production, Policy and Regulation (E575)

Price
GBP £780.00 excl VAT
Register
Progressive deformation in the arbuckle and wichita moutains
Calendar4 - 7 Nov 2024
LocationOklahoma City, Oklahoma
TutorsDavid Ferrill, Kevin Smart

Progressive Deformation in the Arbuckle and Wichita Mountains: Implications for Mid-Continent and Resource Plays – A Field Seminar (G083)

Price
USD $7,600.00 excl VAT
Register
Calendar6 Nov 2024
LocationLondon
TutorsMatthew Healey

Lessons Learned from Carbon Capture and Storage Projects to Date (E577)

Price
GBP £800.00 excl VAT
Register
Calendar11 - 13 Nov 2024
LocationVirtual
TutorsKatriona Edlmann

The Transportation and Geological Storage of Hydrogen (E576)

Price
GBP £1,170.00 excl VAT
Register
Calendar12 - 15 Nov 2024
LocationVirtual
TutorsGioia Falcone

Geothermal Technologies and Well Design (E514)

Price
GBP £1,560.00 excl VAT
Register
Calendar20 - 24 Jan 2025
LocationVirtual
TutorsRichard Worden

Carbon Capture and Storage Masterclass (E502)

Price
GBP £1,950.00 excl VAT
Register