Adams, S. J. (1991). Gas saturation monitoring in North Oman Reservoir using a borehole gravimeter. SPE Journal, 21414: 669–678.Google Scholar

Allis, R. G., and Hunt, T. M. (1986). Analysis of exploitation-induced gravity changes at Wairakei Geothermal Field. Geophysics, 51: 1647–1660.CrossRefGoogle Scholar

Alnes, H. (2015). Gravity surveys over time at Sleipner. Presentation at the 10th IEAGHG Monitoring Network Meeting, June 10–12, 2015. http://ieaghg.org/docs/General_Docs/8_Mon/6_Gravity_surveys_over_time_at_SleipnerSEC.pdfGoogle Scholar

Alnes, H., Eiken, O., and Stenvold, T. (2008). Monitoring gas production and CO₂ injection at the Sleipner field using time-lapse gravimetry. Geophysics, 73: WA155–WA161.CrossRefGoogle Scholar

Alnes, H., Stenvold, T., and Eiken, O. (2010). Experiences on seafloor gravimetrics and subsidence monitoring above producing reservoirs. In Extended Abstract, 72nd EAGE Conference.CrossRefGoogle Scholar

Alnes, H., Eiken, O., Nooner, S., Stenvold, T., and Zumberge, M. A. (2011). Results from Sleipner gravity monitoring: Updated density and temperature distribution of the CO₂ plume. Energy Procedia, 4: 5504–5511 (10th International Conference on Greenhouse Gas Control Technologies).CrossRefGoogle Scholar

Ander, M. E., and Chapin, D. A. (1997). Borehole gravimetry: A review. In Extended Abstracts, 67th Annual Society of Exploration Geophysicists Meeting, 531–534.CrossRefGoogle Scholar

Arts, R., Chadwick, A., Eiken, O., Thibeau, S., and Nooner, S. (2008). Ten years’ experience of monitoring CO₂ injection in the Utsira Sand at Sleipner, offshore Norway. First Break, 26: 65–72.CrossRefGoogle Scholar

Bate, D. (2005). 4D reservoir volumetrics: A case study over the Izaute gas storage facility. First Break, 23: 69–71.CrossRefGoogle Scholar

Battaglia, M., Gottsmann, J., Carbone, D., and Fernández, J. (2008). 4D volcano gravimetry. Geophysics, 73(6): WA3–WA18.CrossRefGoogle Scholar

Brady, J. L., Hare, J. L., Ferguson, J. F., et al. (2008). Results of the world’s first 4D microgravity surveillance of a Waterfloor – Prudhoe Bay, Alaska. SPE Journal, 101762.Google Scholar

Calvo, M., Hinderer, J., Rosat, S., et al. (2014). Time stability of spring and superconducting gravimeters through the analysis of very long gravity records. Journal of Geodynamics, 80: 20–33.CrossRefGoogle Scholar

Campos-Enriquez, J. O., Morales-Rodrigues, H. F., Domínguez-Mendez, F., and Birch, F. S. (1998). Gauss’s theorem, mass deficiency at Chicxulub crater (Yucatan, Mexico), and the extinction of the dinosaurs. Geophysics, 63(5): 1585–1594.CrossRefGoogle Scholar

Carbone, D., Poland, M. P., Diament, M., and Greco, F. (2017). The added value of time-variable microgravimetry to the understanding of how volcanoes work. Earth-Science Reviews, 169: 146–179.CrossRefGoogle Scholar

Chadwick, R. A., Arts, R., Eiken, O., Kirby, G. A., Lindeberg, E., and Zweigel, P. (2004). 4D seismic imaging of an injected CO₂ plume at the Sleipner Field, central North Sea. In Cartwright, R. J., Stewart, S. A., Lappin, M., and Underhill, J. R., (eds.), 3D seismic technology: Application to the exploration of sedimentary basins. Geological Society, London, Memoirs, 29: 311–320. The Geological Society of London.Google Scholar

Chadwick, R. A., Arts, R., and Eiken, O. (2005). 4D seismic quantification of a growing CO₂ plume at Sleipner, North Sea. In Doré, A. G. and Vining, B. A. (eds.), Petroleum geology: North-west Europe and global perspectives: Proceedings of the 6th Petroleum Geology Conference, 1385–1399.Google Scholar

Chadwick, R.A., Arts, R., Bentham, M., et al. (2009). Review of monitoring issues and technologies associated with the long-term underground storage of carbon dioxide. London: Geological Society, Special Publications, 313: 257–275.Google Scholar

Chapin, D. A., and Ander, M. E. (2000). Advances in deep-penetration density logging. Society of Petroleum Engineers Conference Papers, 59698.CrossRefGoogle Scholar

Christiansen, L., Lund, S., Andersen, O. B., Binning, P. J., Rosbjerg, D., and Bauer-Gottwein, P. (2011). Measuring gravity change caused by water storage variations: Performance assessment under controlled conditions. Journal of Hydrology, 402: 60–70.CrossRefGoogle Scholar

Debeglia, N., and Dupont, F. (2002). Some critical factors for engineering and environmental microgravity investigations. Journal of Applied Geophysics, 50: 435–454.CrossRefGoogle Scholar

Dodds, K., Krahenbuhl, R., Reitz, A., Li, Y., and Hovorka, S. (2013). Evaluating time-lapse borehole gravity for CO₂ plume detection at SECARB Cranfield. International Journal of Greenhouse Gas Control, 18: 421–429.CrossRefGoogle Scholar

Eiken, O., Stenvold, T., Zumberge, M., Alnes, H., and Sasagawa, G. (2008). Gravimetric monitoring of gas production from the Troll field. Geophysics, 73: WA149–WA154.CrossRefGoogle Scholar

Eiken, O., Ringrose, P., Hermanrud, C., Nazarian, B., Torp, T. A., and Høier, L. (2011). Lessons learned from 14 years of CCS Operations: Sleipner, In Salah and Snøhvit. Energy Procedia, 4: 5541–5548.CrossRefGoogle Scholar

Eiken, O., Glegola, M., Liu, S., and Zumberge, M. A. (2017). Four decades of gravity monitoring of the Groningen Gas Field. Extended Abstract, First EAGE Workshop on Practical Reservoir Monitoring.CrossRefGoogle Scholar

Ferguson, J. F., Klopping, F. J., Chen, T., Seibert, J. E., Hare, J. L., and Brady, J. L. (2008). The 4D microgravity method for waterflood surveillance: Part 3–4D absolute microgravity surveys at Prudhoe Bay, Alaska. Geophysics, 73(6): WA163–WA171.CrossRefGoogle Scholar

Furre, A.-K., Eiken, O., Alnes, H., Vevatne, J. N., and Kiær, A. F. (2017). 20 years of monitoring CO₂ injection at Sleipner. Energy Procedia, 4: 5541–5548.Google Scholar

Gasperikova, E., and Hoversten, G. M. (2006). A feasibility study of nonseismic geophysical methods for monitoring geologic CO₂ sequestration. Leading Edge, October: 1282–1288.Google Scholar

Gasperikova, E., and Hoversten, G. M. (2008). Gravity monitoring of CO₂ movement during sequestration: Model studies. Geophysics, 73(6): WA105–WA112.CrossRefGoogle Scholar

Geertsma, J. (1973). Land subsidence above compacting oil and gas reservoirs. Journal of Petroleum Technology, 59(6): 734–744.CrossRefGoogle Scholar

Gelderen, M. v, Haagmans, R., and Bilker, M. (1999). Gravity changes and natural gas extraction in Groningen. Geophysical Prospecting, 47: 979–993.CrossRefGoogle Scholar

Glegola, M., Didmar, P., Hanea, R. G., et al. (2012). History matching time-lapse surface-gravity and well-pressure data with ensemble smoother for estimating gas field aquifer support: A 3D numerical study. SPE Journal, 161483.CrossRefGoogle Scholar

Goetz, J. F. (1958). A gravity investigation of a sulphide deposit. Geophysics, 23(6): 606–623.CrossRefGoogle Scholar

Hare, J. L., Ferguson, J. F., and Brady, J. L. (2008). The 4D microgravity method for waterflood surveillance: Part IV – Modeling and interpretation of early epoch 4D gravity surveys at Prudhoe Bay, Alaska. Geophysics, 73(6): WA173–WA180.CrossRefGoogle Scholar

Hauge, V. L., and Kobjørnsen, O. (2015). Bayesian inversion of gravimetric data and assessment of CO₂ dissolution in the Utsira Formation. Interpretation, sp1–sp10.CrossRefGoogle Scholar

Hunt, T. M., and Kissling, W. M. (1994). Determination of reservoir properties at Wairakei Geothermal Field using gravity change measurements. Journal of Volcanology and Geothermal Research, 63: 129–143.CrossRefGoogle Scholar

Hunt, T., Sugihara, M., Sato, T., and Takemura, T. (2002). Measurement and use of the vertical gravity gradient in correcting repeat microgravity measurements for the effects of ground subsidence in geothermal systems. Geothermics, 31: 524–543.CrossRefGoogle Scholar

Jacob, T., Bayer, R., Chery, J., and Le Moigne, N. (2010). Time-lapse microgravity surveys reveal water storage heterogeneity of a karst aquifer. Journal of Geophysical Research, 115: B06402.CrossRefGoogle Scholar

Jacob, T., Rohmer, J., and Manceau, J.-C. (2016). Using surface and borehole time-lapse gravity to monitor CO₂ in saline aquifers: A numerical feasibility study. Greenhouse Gas Science and Technology, 6: 34–54.CrossRefGoogle Scholar

Kabirzadeh, H., Kim, J. W., and Sideris, M. G. (2017). Micro-gravimetric monitoring of geological CO₂ reservoirs. International Journal of Greenhouse Gas Control, 56: 187–193.CrossRefGoogle Scholar

Kabirzadeh, H., Sideris, M. G., Shin, Y. J., and Kim, J. W. (2017). Gravimetric monitoring of confined and unconfined geological CO₂ reservoirs. Energy Procedia, 114: 3961–3968.CrossRefGoogle Scholar

Kim, J. W., Neumeyer, J., Kao, R., and Kabirzadeh, H. (2015). Mass balance monitoring of geological CO₂ storage with a superconducting gravimeter: A case study. Journal of Applied Geophysics, 114: 244–250.CrossRefGoogle Scholar

Landrø, M., and Zumberge, M. (2017). Estimating saturation and density changes caused by CO₂ injection at Sleipner: Using time-lapse seismic amplitude-variation-with-offset and time-lapse gravity. Interpretation, T243–T257.CrossRefGoogle Scholar

Lien, M., Agersborg, R., Hille, L. T., Lindgård, J. E., Ruiz, H., and Vatshelle, M. (2017). How 4D gravity and subsidence monitoring provide improved decision making at a lower cost. Extended Abstract, First EAGE Workshop on Practical Reservoir Monitoring.CrossRefGoogle Scholar

Nind, C. J. M., and MacQueen, J. D. (2013). The borehole gravity meter: Development and Results: 10th Biennial International Conference & Exhibition.CrossRefGoogle Scholar

Nooner, S. L. (2005). Gravity changes associated with underground injection of CO2 at the Sleipner storage reservoir in the North Sea, and other marine geodetic studies. PhD thesis, University of California, San Diego.Google Scholar

Nooner, S. L., Eiken, O., Hermanrud, C., Sasagawa, G. S., Stenvold, T., and Zumberge, M. A. (2007). Constraints on the in situ density of CO₂ within the Utsira formation from time-lapse seafloor gravity measurements. International Journal of Greenhouse Gas Control, 1: 198–214.CrossRefGoogle Scholar

Nordquist, G., Protacio, J. A., and Acuna, J. A. (2004). Precision gravity monitoring of the Bulalo geothermal field, Philippines: Independent checks and constraints on numerical simulation. Geothermics, 33: 37–56.CrossRefGoogle Scholar

Preuss, K. ed. (1998). Proceedings of the TOUGH Workshop ´98, Berkeley, California, May 4 –6, 1998. Lawrence Berkeley National Laboratory report LBNL-41995.Google Scholar

Pritchett, J. W., and Garg, S. K. (1995). STAR: A geothermal reservoir simulation system: Proceedings of the World Geothermal Congress 1995, Florence, Italy, May 18–31, International Geothermal Association, 2959–2963.Google Scholar

Ringrose, P. S., Mathieson, A. S., Wright, I. W., et al. (2013). The In Salah CO₂ storage project: Lessons learned and knowledge transfer. Energy Procedia, 37: 6226–6236.CrossRefGoogle Scholar

Sasagawa, G., Crawford, W., Eiken, O., Nooner, S. L., Stenvold, T., and Zumberge, M. A. (2003). A new sea-floor gravimeter. Geophysics, 68(2): 544–553.CrossRefGoogle Scholar

Seigel, H. O., Nind, C., Lachapelle, R., Choteau, M., and Giroux, B. (2007). Development of a borehole gravity meter for mining applications. In Milkereit, B. (ed.), Proceedings of Exploration 07: Fifth Decennial International Conference on Mineral Exploration, 21143–21147.Google Scholar

Sherlock, D., Toomey, A., Hoversten, M., Gasperikova, E., and Dodds, K. (2006). Gravity monitoring of CO₂ storage in a depleted gas field: A sensitivity study. Exploration Geophysics, 37: 37–43.CrossRefGoogle Scholar

Singhe, A. T., Ursin, J. R., Pusch, G., and Ganzer, L. (2013). Modeling of temperature effects in CO₂ injection wells. Energy Procedia, 37: 3927–3935.CrossRefGoogle Scholar

Sofyan, Y., Kamah, Y., Fujimitsy, Y., Ehara, S., Fukuda, Y., and Taniguchi, M. (2011). Mass variation in outcome to high productionactivity in Kamojang Geothermal Field, Indonesia: A reservoir monitoring with relative and absolute gravimetry. Earth Planets and Space, 63: 1157–1167.CrossRefGoogle Scholar

Stenvold, T., Eiken, O., Zumberge, M. A., Sasagawa, G. S., and Nooner, S. L. (2006). High-precision relative depth and subsidence mapping from seafloor water-pressure measurements. SPE Journal, 11(3): 380–389.CrossRefGoogle Scholar

Sugihara, M., and Ishido, T. (2008). Geothermal reservoir monitoring with a combination of absolute and relative gravimetry. Geophysics, 73(6): WA37–WA47.CrossRefGoogle Scholar

Sugihara, M., Nawa, K., Nishi, Y., Ishido, T., and Soma, N. (2013). Continuous gravity monitoring for CO₂ geo-sequestration. Energy Procedia, 37: 4302–4309.CrossRefGoogle Scholar

Torge, W. (1989). Gravimetry. Berlin: Walter de Gruyter.Google Scholar

Van den Beukel, A. (2014). Integrated reservoir monitoring of the Ormen Lange field: Time lapse seismic, time lapse gravity and seafloor deformation monitoring. The Biennial Geophysical Seminar, NPF, Kristiansand.Google Scholar

Van Opstal, G. H. C. (1974). The effect of base-rock rigidity on subsidence due to reservoir compaction. In Proceedings of the 3rd Congress of the International Society for Rock Mechanics, Denver, II, Part B, 1102–1111.Google Scholar

Vevatne, J. N., Alnes, H., Eiken, O., Stenvold, T., and Vassenden, F. (2012). Use of field-wide seafloor time-lapse gravity in history matching the Mikkel gas condensate field. Extended Abstract, 74th EAGE Conference.CrossRefGoogle Scholar

Wilson, C. R., Scanlon, B., Sharp, J., Longuevergne, L., and Wu, H. (2012). Field test of the superconducting gravimeter as a hydrologic sensor. Ground Water, 50(3): 442–449.CrossRefGoogle ScholarPubMed

Yin, Q., Krahenbuhl, R., Li, Y., Wagner, S., and Brady, J. (2016). Time-lapse gravity data at Prudhoe Bay: New understanding through integration with reservoir simulation models. Expanded Abstract, Society of Exploration Geophysicists Annual Meeting.CrossRefGoogle Scholar

Zumberge, M., Alnes, H., Eiken, O., Sasagawa, G., and Stenvold, T. (2008). Precision of seafloor gravity and pressure measurements for reservoir monitoring. Geophysics, 73(6): WA133–WA141.CrossRefGoogle Scholar