Quantification of Reservoir Pressure-sensitivity Using Multiple Monitor 4D Seismic Data

Veronica Ebiweni Ehinome Omofoma, Colin MacBeth

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

Key to quantitative interpretation of 4D seismic data for the separation of pressure and saturation effects is accurate knowledge of their individual contributions to the 4D seismic signatures. Currently, pressure sensitivity is calibrated using laboratory measurements on core plugs that have limited applicability to the in-situ field-scale reservoir response. A complementary technique for estimating pressure sensitivity is to compare seismic and pressure measurements. This is possible in selected areas around and away from wells where pressure variations contribute predominantly to the 4D signatures. Multiple monitor 4D seismic data are utilised to sample these areas as a function of field production time. The technique is applied to seismic amplitudes across a variety of producing North Sea clastic reservoirs. The results indicate that pressure sensitivity varies according to the geology of each reservoir. Also, estimates around some water injectors appear to show elevated sensitivity, suggesting the presence of induced fractures.
Original languageEnglish
DOIs
Publication statusPublished - 31 May 2016
Event78th EAGE Conference and Exhibition 2016 : Efficient Use of Technology - Unlocking Potential - Vienna, Austria
Duration: 30 May 20162 Jun 2016
http://www.eage.org/event/index.php?eventid=1391

Conference

Conference78th EAGE Conference and Exhibition 2016
CountryAustria
CityVienna
Period30/05/162/06/16
Internet address

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