Land uplift due to subsurface fluid injection |
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Authors: | Pietro Teatini Giuseppe Gambolati Massimiliano Ferronato A Settari Dale Walters |
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Institution: | 1. Department of Mathematical Models and Methods for Scientific Applications, University of Padova, Via Trieste 63, 35121 Padova, Italy;2. Department of Chemical and Petroleum Engineering, University of Calgary, Canada;3. TAURUS Reservoir Solutions Ltd., Calgary, Canada |
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Abstract: | The subsurface injection of fluid (water, gas, vapour) occurs worldwide for a variety of purposes, e.g. to enhance oil production (EOR), store gas in depleted gas/oil fields, recharge overdrafted aquifer systems (ASR), and mitigate anthropogenic land subsidence. Irrespective of the injection target, some areas have experienced an observed land uplift ranging from a few millimetres to tens of centimetres over a time period of a few months to several years depending on the quantity and spatial distribution of the fluid used, pore pressure increase, geological setting (depth, thickness, and area extent), and hydro-geomechanical properties of the injected formation. The present paper reviews the fundamental geomechanical processes that govern land upheaval due to fluid injection in the subsurface and presents a survey of some interesting examples of anthropogenic uplift measured in the past by the traditional levelling technique and in recent times with the aid of satellite technology. The examples addressed include Long Beach, Santa Clara Valley, and Santa Ana basin, California; Las Vegas Valley, Nevada; Cold Lake and other similar sites, Canada; Tokyo and Osaka, Japan; Taipei, Taiwan; Krechba, Algeria; Upper Palatinate, Germany; Chioggia and Ravenna, Italy. |
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Keywords: | Land uplift Subsurface fluid injection Ground- and satellite-based measurements Hydro-geomechanical properties Case studies |
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