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Ekofisk field

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Proceedings Papers

Paper presented at the European Petroleum Conference, October 22–24, 1996
Paper Number: SPE-36874-MS
... Abstract The Ekofisk Field in the Norwegian North Sea is currently being redeveloped with the installation of a new processing platform and a new 50 slot wellhead platform. The new processing facilities are scheduled to be installed in 1998 and will serve as a central processing point...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204018-MS
... A new phase of Ekofisk and Eldfisk field development was started in 2014. On Ekofisk, the 2/4 Ekofisk Zulu wellhead platform (EKOZ) provided 35 new production slots and Victor Alpha (VA) provided 4 new subsea water injection wells. On the Eldfisk field, another 39 production and water injection...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29552-MS
... A new subsea water treatment system for injection water has been developed and has undergone several phases of testing. A full-scale water treatment module has been built and is currently being tested at the Ekofisk field offshore Norway to determine its viability under North Sea field...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190209-MS
... of the entire Ekofisk field and an inset showing more details on the locations of K-01A, B-19C, and X-31 is shown in figure 2 . There was evidence of a potential VSC prior to stimulating/injecting K-01A. The initial logging suite from B-19C showed a swept interval with a maximum cooling approximately 80° C...
Proceedings Papers

Paper presented at the SPE Bergen One Day Seminar, April 20, 2016
Paper Number: SPE-180061-MS
... of these factors limit efficient production optimization due to the inability to collect data in a timely manner for analysis. Furthermore, experiences from the Ekofisk field indicate that PLT data often gives inconclusive results due to known challenges of interpreting PLT data from horizontal wells...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18116-MS
... Abstract The Ekofisk field, which is a naturally fractured chalk field, was the first offshore oilfield that was put on production in Norway in 1972. The field was produced by pressure depletion the first 10 years, and the initial recovery was estimated to only 17%. Due to the high porosity...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-4237
... ABSTRACT Being a highly compacted chalk reservoir, Ekofisk is a well known example of a field showing strong time lapse effects; as a result of compaction, the water bottom has subsided by over 9 m since the start of production in 1971. Five 4D seismic surveys have been shot on the area...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, June 14–17, 2010
Paper Number: SPE-130425-MS
... available field data, the proposed approach allowed us to improve characterization of the Ekofisk fracture network. The seafloor subsidence and chalk compaction observed at Ekofisk have initiated extensive studies of the reservoir geomechanics. The geomechanical effects were integrated in the reservoir...
Proceedings Papers

Paper presented at the SPE International Conference on Health, Safety and Environment in Oil and Gas Exploration and Production, April 12–14, 2010
Paper Number: SPE-126821-MS
... technology in a "Zero harmful impact" perspective. This implies that environmental monitoring tools that can be applied in field and for which enough knowledge are available to conclude on the impact level. These challenges were addressed for the Ekofisk field where additional PW cleaning technology has been...
Proceedings Papers

Paper presented at the 19th World Petroleum Congress, June 29–July 3, 2008
Paper Number: WPC-19-3966
... ABSTRACT The Ekofisk field reservoir is an elongated anticline covering some 35 km2. The large areal extend and an oil coloumn exceeding 300 meters make the Ekofisk field one of the largest oil fields on the Norwegian Continental Shelf. Current estimates of initial oil in place is 6,9 billion...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18700-MS
... Abstract In chalk reservoirs such as the Ekofisk Field, fluid flow and geomechanical effects combine to change both the location and properties of the reservoir and overburden. Pore pressure and fluid saturation changes cause reservoir compaction and perturb the elastic properties...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-3210
... ABSTRACT Over the past decade, time-lapse (4D) seismic has evolved into a valuable reservoir-monitoring tool used on numerous fields throughout the world. 4D seismic has been used at the Ekofisk field to monitor water injection and reservoir depletion. The 4D seismic signal is complex and can...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-3200
... ABSTRACT In chalk reservoirs such as the Ekofisk Field, fluid flow and geomechanical effects combine to change both the location and properties of the reservoir and overburden. Pore pressure and fluid saturation changes cause reservoir compaction and perturb the elastic properties...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06661
... ABSTRACT An H2S forecasting model was developed for the Ekofisk Field to evaluate various produced water reinjection (PWRI) scenarios on reservoir souring in response to a requirement of the Norwegian Pollution Control Authority to achieve zero harmful discharges to the sea for implementation...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 2–4, 2005
Paper Number: SPE-93297-MS
... Abstract This paper presents a mechanistic approach to modeling the reservoir souring process in the Ekofisk Field, located in the Norwegian sector of the North Sea with over 6 billion STB OOIP and currently producing about 300,000 BOPD and injecting around 500,000 BWPD sea water...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78177-MS
... SPE/ISRM 78177 Ekofisk Field Well Log Decompaction P.R. Gauer, TotalFinaElf Exploration Norge, J. E. Sylte, N. B. Nagel, SPE, Phillips Petroleum Company Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE/ISRM Rock Mechanics Conference held...
Journal Articles
SPE Res Eval & Eng 3 (06): 534–543.
Paper Number: SPE-68096-PA
Published: 01 December 2000
... of the Ekofisk field, with its numerous faults and fracture networks, anisotropy was one of the primary attributes calibrated to achieve an individual well and field history match. However, faults and fault sealing factors, vertical permeability, pseudorelative permeability curves, bubblepoint pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56426-MS
... Abstract Over 7.8 meters of seafloor subsidence has occurred at the Ekofisk Field in the Norwegian sector of the North Sea since the start of production in 1971. Full field water injection was initiated at Ekofisk on a limited scale in 1987. The surface subsidence is a result of reservoir...
Proceedings Papers

Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-SS
... in the Eldfisk Field. A striking feature of the Tor is the dramatic thickness change/reduction from the crest of the Eldfisk Bravo structure to the flank. The deposition on the Alpha structure is much thinner and absent on the south flank. The focus of the evaluation was on this formation. - The Ekofisk...
Proceedings Papers

Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-LL
... ABSTRACT Resistivity based water saturation estimates in Ekofisk Field waterflood breakthrough intervals are affected by changes in temperature, water resistivity, and Archie parameters introduced by the injection of cold seawater into the reservoir. Reservoir temperatures in wells adjacent...

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