Real Time Caprock Integrity Monitoring Becomes Reality
T. Matveeva, E.V. Bergfjord, J.E. Lindgård and S. Bussat
Event name: 77th EAGE Conference and Exhibition 2015
Session: Permanent Reservoir Monitoring
Publication date: 01 June 2015
Info: Extended abstract, PDF ( 2.33Mb )
Price: € 20
Octio has installed an unique PRM system at the Oseberg field on the Norwegian continental shelf for monitoring of a waste injection well. The system consists of 172 nodes with 3 MEMS accelerometers and hydrophone and its layout has been designed both for passive monitoring and 4D seismic surveys. The system has been continuously recording data since its start-up in October 2013 with very low total downtime. To present the system performance we show analysis of data including perforation shots in the designated well and neighboring wells, a microseismic event generated during the first test injection cycle and we discuss noise removal techniques developed exclusively for this installation.