3D Seismic Data Acquisition: An Update on Modern Technologies and Usage Methodologies

by R. Malcolm Lansley

Duration: Two days

Intended Audience: Intermediate 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 not cover the fundamentals of data acquisition or 3D survey design, although there will be a short section that will discuss some of the problems and errors that are frequently made in some of the surveys being acquired today.

Course Outline:

  • Introduction, including cost-benefit overview
  • Design issues frequently misunderstood, forgotten or deliberately ignored
  • High density surveys
  • Wide azimuth vs. narrow azimuth geometries
  • Broader bandwidth recording and the search for low frequencies
  • High productivity recording techniques (marine and land simultaneous sourcing)
  • Alternative land source technology
  • Where cable-less recording systems are applicable and where not
  • Arrays versus point receivers
  • 3C sensors versus conventional P-wave geophones

Instructor Biography:
R. Malcolm Lansley