3D Seismic Data Acquisition: An Update on Modern Technologies and Usage Methodologies
by R. Malcolm Lansley
Duration: Two days
Intended Audience: Basic to intermediate levels
Prerequisites (Knowledge/Experience/Education Required): The course can be adapted to suit all levels, from absolute beginners to geophysicists with acquisition, processing and interpretation experience. Geologists and managers who have little geophysical knowledge can also benefit from an improved understanding of seismic acquisition techniques and 3D survey design. The course can also be tailored to concentrate on one or more operational environment, such as land, streamer marine or ocean floor recording.
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.
- Introduction, including cost-benefit overview
- Design issues frequently misunderstood, forgotten or deliberately ignored
- Wide azimuth vs. narrow azimuth geometries
- Dual sensor marine data acquisition
- Marine simultaneous sourcing
- High density surveys
- Where cable-less recording systems are applicable and where not
- Modern land source technology, including high productivity vibroseis methodologies
- Arrays versus point receivers
- 3C sensors versus conventional P-wave geophones
R. Malcolm Lansley