Seismic Data Acquisition: Modern Land and Marine Technologies and Methods

by R. Malcolm Lansley

The course will begin with the fundamentals of data acquisition and 3D survey design, and will continue with a discussion of how survey design and acquisition have changed progressively over the years to improve the quality and cost-effectiveness of our 3D surveys.

This course will be offered at the University of Houston - SEG Summer Geophysics Program 11–15 May 2020.

Register now

ADVERTISEMENT

Our advertisers help SEG provide services to our customers. Please consider unblocking ads for our site.

Duration

Five days

Intended Audience

Basic to advanced levels

Prerequisites (Knowledge/Experience/Education Required)

It is assumed that attendees will have a basic understanding of the principles of seismic reflection theory and how these have been applied in the past. Although some knowledge of seismic data acquisition will be helpful, it is not essential. Geologists and managers who have little geophysical knowledge will also benefit from an improved understanding of modern seismic acquisition techniques and 3D survey design.

Summary

This course will provide information related to recent advances in data acquisition technology, equipment and the methodologies that are being utilized to improve data quality and, in many cases, reduce the cost of 3D survey acquisition. The course is appropriate not only for geophysicists involved in survey design and acquisition, but also for those involved in data processing and interpretation who wish to better understand the potential improvements that can be made. Both marine and land applications will be discussed.

The course will begin with the fundamentals of data acquisition and 3D survey design, and will continue with a discussion of how survey design and acquisition have changed progressively over the years to improve the quality and cost-effectiveness of our 3D surveys.

Course Outline

  • Introduction, including cost-benefit
  • Land video
  • Basic geophysics of seismic recording
  • Fundamental land geometries
  • Fundamental streamer marine acquisition
  • Fundamentals of sea-bed (OBC and OBN) acquisition
  • Migration aperture
  • Spatial sampling
  • Compressive sensing
  • Design issues frequently misunderstood, incorrectly calculated or deliberately ignored
  • High density surveys
  • Wide azimuth vs. narrow azimuth geometries
  • The search for low frequencies
  • High productivity data acquisition
    • Simultaneous source technology including vibroseis methodologies
  • Additional novel and useful technologies
    • Accelerated weight drops
    • “TopSeis1 ”
    • “QuietSea2 ”
  • Other Issues
    • Where cable-less recording systems are applicable and where not
    • Arrays versus point receivers
    • 3C sensors versus conventional p-wave geophones
  • Converted wave acquisition on land
  • Team exercises

Learner Outcomes

  • Define the primary parameters for a successful 3D survey design in differing terrains
  • Discuss the effect of operational aspects of different terrain conditions on the choice of survey acquisition equipment and technologies
  • Discuss the requirements for successful Pre-stack Depth Migration in terms of
  • Data acquisition geometry / spatial sampling
  • Migration aperture
  • Define the benefits of wide azimuth recording geometries over more traditional narrow azimuth surveys
  • Define the benefits of obtaining more low frequency signal
  • Discuss the primary difficulties in improving marine low frequency data acquisition
  • Discuss the primary difficulties in improving low frequency data acquisition on land
  • Define the primary methods of designing high density, wide azimuth  surveys on land using explosives
  • Define the primary methods of designing high density, wide azimuth surveys on land using vibrators or other surface sources
  • Discuss the need for surface arrays of sensors versus when point receivers may be sufficient

Instructor Biography

R. Malcolm Lansley

This website uses cookies. If you continue without changing your browser settings, you consent to our use of cookies in accordance with our cookie policy. You can disable cookies at any time. Learn more

We also use partner advertising cookies to deliver targeted, geophysics-related advertising to you; these cookies are not added without your direct consent.

 

8801 S. Yale Ave. Suite 500
Tulsa, OK 74137
Phone: 918-497-5500
Email: [email protected]

CONNECT with us

Don't miss a thing.

Visit your SEG Communications Center to update your communications preferences.

Don't have an SEG account? It's free to create one - and you don't have to be an SEG member.

Twitter facebook linkedIn instagram youtube
Featuring bonus content!