Patent Number: 8,720,264

Title: Performance of permanently installed tubing conveyed seismic arrays using passive acoustic absorbers

Abstract: Methods and apparatus for reducing the impact of guided (or "tube") waves in permanently installed seismic systems. By utilizing passive acoustic absorbers, the impact of tube waves may be reduced, leading to improved performance of permanently installed seismic systems that are installed onto production tubing when the well is completed.

Inventors: Knudsen; Sverre (Oslo, NO), Travis; Paul (Aberdeenshire, GB)

Assignee: Weatherford/Lamb, Inc.

International Classification: E21B 47/10 (20120101)

Expiration Date: 5/13/12018