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  1. High-Precision Gravimetric Monitoring Provides Insights into Subsurface Processes

    Article • First Break, March 2023, EAGE Publications

    Dr. Ola Eiken

  2. Accurate Measurements of Seabed Subsidence Above Norwegian Gas Fields

    Article • First Break, March 2022, EAGE Publications

    Dr. Ola Eiken

  3. Insights into Injection-Induced Surface Displacement Via Geertsma-Type Models

    Article • SSRN Electronic Journal, January 2022, Elsevier

    Dr. Ola Eiken

  4. Gravity for CO2 monitoring

    Article • April 2019, Cambridge University Press

    Dr. Ola Eiken

  5. Twenty Years of Monitoring CO2 Injection at Sleipner

    Article • April 2019, Cambridge University Press

    Dr. Ola Eiken

  6. Gravity And Subsidence Monitoring For Production Optimization And Improved Reserve Estimation Of Gas Fields

    Article • January 2018, EAGE Publications

    Dr. Ola Eiken

  7. 20 Years of Monitoring CO2-injection at Sleipner

    Article • Energy Procedia, July 2017, Elsevier

    Dr. Ola Eiken

  8. Four Decades of Gravity Monitoring of the Groningen Gas Field

    Article • March 2017, EAGE Publications

    Dr. Ola Eiken

  9. CO 2 -induced seismic time shifts at Sleipner

    Article • Interpretation, August 2015, Society of Exploration Geophysicists

    Dr. Ola Eiken

  10. Calendar time interpolation of amplitude maps from 4D seismic data

    Article • Geophysical Prospecting, July 2015, Wiley

    Dr. Ola Eiken

  11. Calendar Time Interpolation of Amplitude Maps from 4D Seismic Data

    Article • March 2015, EAGE Publications

    Dr. Ola Eiken

  12. Repeated Time-lapse Seismic Data Quantify Amplitude Tuning at the Sleipner CO2 Injection Site

    Article • January 2014, EAGE Publications

    Dr. Ola Eiken

  13. Snøhvit: The History of Injecting and Storing 1 Mt CO2 in the Fluvial Tubåen Fm

    Article • Energy Procedia, January 2013, Elsevier

    Dr. Ola Eiken

  14. Snøhvit CO2 Storage Project: Assessment of CO2 Injection Performance Through History Matching of the Injection Well Pressure Over a 32-months Period

    Article • Energy Procedia, January 2013, Elsevier

    Dr. Ola Eiken

  15. History Matching Time-Lapse Surface-Gravity and Well-Pressure Data With Ensemble Smoother for Estimating Gas Field Aquifer Support—A 3D Numerical Study

    Article • SPE Journal, September 2012, Society of Petroleum Engineers (SPE)

    Dr. Ola Eiken

  16. The Latest Sleipner CO2 Injection Monitoring Using Dual Sensor Streamer Technology

    Article • June 2012, EAGE Publications

    Dr. Ola Eiken

  17. Use of Field-wide Seafloor Time-lapse Gravity in History Matching the Mikkel Gas Condensate Field

    Article • June 2012, EAGE Publications

    Dr. Ola Eiken

  18. Time-lapse Seafloor Gravity and Height Measurements for Reservoir Monitoring

    Article • April 2012, Society of Petroleum Engineers (SPE)

    Dr. Ola Eiken

  19. Passive Observations - Surface Deformations, Gravity and Microseismics

    Article • February 2011, EAGE Publications

    Dr. Ola Eiken

  20. Monitoring CO2injection into a fluvial brine‐filled sandstone formation at the Snøhvit field, Barents Sea

    Article • January 2011, Society of Exploration Geophysicists

    Dr. Ola Eiken

  21. Lessons learned from 14 years of CCS operations: Sleipner, In Salah and Snøhvit

    Article • Energy Procedia, January 2011, Elsevier

    Dr. Ola Eiken

  22. Sleipner CO2 Storage– 13 Years of Injection and Monitoring

    Article • January 2010, EAGE Publications

    Dr. Ola Eiken

  23. Experiences on Seafloor Gravimetric and Subsidence Monitoring Above Producing Reservoirs

    Article • January 2010, EAGE Publications

    Dr. Ola Eiken

  24. An Overview of Active Large-Scale CO2 Storage Projects

    Article • November 2009, Society of Petroleum Engineers (SPE)

    Dr. Ola Eiken

  25. Storage of CO2 in saline aquifers–Lessons learned from 10 years of injection into the Utsira Formation in the Sleipner area

    Article • Energy Procedia, February 2009, Elsevier

    Dr. Ola Eiken

  26. Monitoring gas production and C O2 injection at the Sleipner field using time-lapse gravimetry

    Article • Geophysics, November 2008, Society of Exploration Geophysicists

    Dr. Ola Eiken

  27. Precision of seafloor gravity and pressure measurements for reservoir monitoring

    Article • Geophysics, November 2008, Society of Exploration Geophysicists

    Dr. Ola Eiken

  28. Gravimetric monitoring of gas-reservoir water influx — A combined flow- and gravity-modeling approach

    Article • Geophysics, November 2008, Society of Exploration Geophysicists

    Dr. Ola Eiken

  29. Gravimetric monitoring of gas production from the Troll field

    Article • Geophysics, November 2008, Society of Exploration Geophysicists

    Dr. Ola Eiken

  30. Long-term seafloor tidal gravity and pressure observations in the North Sea: Testing and validation of a theoretical tidal model

    Article • Geophysics, November 2008, Society of Exploration Geophysicists

    Dr. Ola Eiken

  31. Ten years' experience of monitoring CO2 injection in the Utsira Sand at Sleipner, offshore Norway

    Article • First Break, January 2008, EAGE Publications

    Dr. Ola Eiken

  32. Monitoring Sleipner CO2 Injection with Combined Surface Seismic and Gravity Data

    Article • January 2008, EAGE Publications

    Dr. Ola Eiken

  33. Constraints on the in situ density of CO2 within the Utsira formation from time-lapse seafloor gravity measurements

    Article • International Journal of Greenhouse Gas Control, April 2007, Elsevier

    Dr. Ola Eiken

  34. High-Precision Relative Depth and Subsidence Mapping From Seafloor Water-Pressure Measurements

    Article • SPE Journal, September 2006, Society of Petroleum Engineers (SPE)

    Dr. Ola Eiken

  35. Sensitivity of time-lapse seismic data to pore pressure changes: Is quantification possible?

    Article • The Leading Edge, December 2005, Society of Exploration Geophysicists

    Dr. Ola Eiken

  36. Repeatability issues of time-lapse marine seismic data

    Article • September 2005, Society of Exploration Geophysicists

    Dr. Ola Eiken

  37. Repeatability issues of time-lapse marine seismic data

    Article • January 2005, EAGE Publications

    Dr. Ola Eiken

  38. Pressure Depletion Observations from Time-Lapse Seismic Data at the Troll Field

    Article • January 2005, EAGE Publications

    Dr. Ola Eiken

  39. Recent time-lapse seismic data show no indication of leakage at the sleipner CO2-injection site

    Article • January 2005, Elsevier

    Dr. Ola Eiken

  40. 4D seismic quantification of a growing CO 2 plume at Sleipner, North Sea

    Article • Geological Society London Petroleum Geology Conference series, January 2005, Geological Society

    Dr. Ola Eiken

  41. Monitoring of CO2 injected at Sleipner using time-lapse seismic data

    Article • Energy, July 2004, Elsevier

    Dr. Ola Eiken

  42. Gravimetric monitoring of gas production from the Troll field

    Article • January 2004, Society of Exploration Geophysicists

    Dr. Ola Eiken

  43. Monitoring of CO2 Injected at Sleipner Using Time Lapse Seismic Data

    Article • January 2003, Elsevier

    Dr. Ola Eiken

  44. Repeated Seismic Survey From the North Sea using New Streamer Technology

    Article • October 2000, Society of Petroleum Engineers (SPE)

    Dr. Ola Eiken

  45. Gravity monitoring of offshore gas reservoirs

    Article • January 2000, Society of Exploration Geophysicists

    Dr. Ola Eiken

  46. Effects of spatial sampling of marine 3‐D seismic data: A case study

    Article • January 1994, Society of Exploration Geophysicists

    Dr. Ola Eiken

  47. Contourites in the Fram Strait

    Article • Sedimentary Geology, January 1993, Elsevier

    Dr. Ola Eiken

  48. A Study of geophysical data from the Billefjorden Fault Zone, Spitsbergen (Svalbard)

    Article • January 1993, EAGE Publications

    Dr. Ola Eiken

  49. An outline of the northwestern Svalbard continental margin

    Article • January 1993, Elsevier

    Dr. Ola Eiken

  50. Seismic mapping of the post-Caledonian strata in Svalbard

    Article • Polar Research, December 1985, Norwegian Polar Institute

    Dr. Ola Eiken

  51. Seismic mapping of the post-Caledonian Svalbard

    Article • Polar Research, January 1985, Taylor & Francis

    Dr. Ola Eiken