September 2003
Special Focus

Improvements in 4D seismic acquisition

Improving reservoir management is an ongoing challenge. 4D seismic is helping to meet this challenge in a growing number of cases. The technology has a multi-billion dollar potential value by increasing hydrocarbon recovery. However, to fulfill this potential, technical improvements are needed, as some recent failures have demonstrated. The technique is immature, and the industry’s appreciation and knowledge of the key issue of repeatability is limited, though rapidly evolving. Poor repeatability creates changes that are not related to the reservoir (i.e., artifacts) and are difficult to distinguish from true reservoir-induced changes in the seismic response. Repeatability – or lack thereof – will give a detection threshold on the minimum vertical fluid-front movements that can be monitored, on minimum saturation changes that can be observed and on how frequent repeat surveys can be made.

Please Log IN view this article.

Not yet a subscriber? For just $149/year, you can claim unlimited access to World Oil's content.*

Each subscription includes: 

  • Unlimited access to all content on
  • Exclusive drilling forecast data, by state, country and region
  • State-by-state results from the survey of U.S. operators
  • Updated producing oil and gas well figures, by state
  • Exclusive access to World Oil's conference presentations
  • Proprietary data tables covering casing, tubing, drill bits and fluids
  • Exclusive World Oil maps (published three times per year)
  • Daily coverage of industry news and developments\
  • Industry whitepapers, webcasts, videos and supplements.

Start your subscription today! 



*Access will be granted the next business day.
Connect with World Oil
Connect with World Oil, the upstream industry's most trusted source of forecast data, industry trends, and insights into operational and technological advances.