Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Olav I. Barkved"'
Publikováno v:
Geophysical Prospecting. 61:1022-1034
An approach is developed to estimate pore‐pressure changes in a compacting chalk reservoir directly from time‐lapse seismic attributes. It is applied to data from the south‐east flank of the Valhall field. The time‐lapse seismic signal of the
Publikováno v:
The Leading Edge. 30:1042-1050
Quantitative 4D seismic interpretation can be successfully achieved by exploiting the causal link between the temporal variation in well activity and the 4D seismic signatures they induce. This is achieved by capturing in mathematical form the common
Publikováno v:
GEOPHYSICS. 76:O1-O13
Conventional time-lapse seismic has been less successful for stiff-rock reservoir monitoring, such as carbonates. This is mainly because of the negligible time-lapse changes in the seismic properties. Therefore, we propose to use long-offset time-lap
Publikováno v:
Geophysical Prospecting. 59:673-681
The frequent time-lapse observations from the life of field seismic system across the Valhall field provide a wealth of information. The responses from the production and injection wells can be observed through time-shift and amplitude changes. These
Publikováno v:
The Leading Edge. 29:290-295
Here we use data from the Life of Field Seismic (LoFS) surface array in conjunction with a migration-style approach to locate microseismic events in Valhall Field during 6.5 hours of hydraulic fracturing. We identify an event distribution that extend
Autor:
Ivan Mundal, Kevin D. Best, Jean-Paul van Gestel, Jan H. Kommedal, Olav I. Barkved, Roger Bakke
Publikováno v:
The Leading Edge. 27:1616-1621
Since the permanent seismic system was installed over Valhall Field five years ago, 11 surveys have been collected—each designed, acquired, and recorded with a high repeatability and efficiency. The time-lapse (4D) data have been processed using a
Autor:
Roar Kjelstadli, Daniel Theodore Johnson, Robert Trythall, Greg Walker, Scott Lane, Ronnie S. Parr, Peter M. Allan, Marcus Marsh, Olav I. Barkved
Publikováno v:
The Leading Edge. 25:1161-1166
BP has developed a workflow for quantitatively integrating results from time-lapse seismic surveys into our reservoir simulation models. This is an extension of our “top-down reservoir modeling (TDRM)” philosophy and toolkit that has become BP's
Publikováno v:
The Leading Edge. 24:1244-1248
Compaction of unconsolidated reservoir rock represents a major drive mechanism in many oil and gas reservoirs. Significant volumes of produced hydrocarbons may be credited to this effect. However, compaction might also result in surface subsidence, a
Publikováno v:
Geophysical Prospecting. 53:283-297
Legacy streamer data and newer 3D ocean-bottom-cable data are cross-matched and analysed for time-lapse analysis of geomechanical changes due to production in the Valhall Field. The issues relating to time-lapse analysis using two such distinctly dif
Publikováno v:
The Leading Edge. 22:1228-1235
Recording and processing both the converted shear waves and the compressional waves from multicomponent ocean bottom seismic (OBS) data provide additional opportunities to understand the subsurface. The converted waves are generally used to provide c