Searched for: subject%3A%22Earth%255C%2Bsciences%22
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document
Loeve, D. (author), Veldkamp, J.G. (author), Peters, E. (author), van Wees, J.D.A.M. (author)
In the production well of a low-enthalpy geothermal doublet hot water is pumped from reservoirs at about 50-1007deg;C. After passing through a heat exchanger, the cold water is re-injected at about 20-357deg;C in the injection well into the reservoir, which initially has the same temperature as the produced water. Under some circumstances, this...
conference paper 2015
document
van Wees, J.D. (author), Neele, F. (author)
Geothermal Energy and CO2 Capture and Storage (CCS) are both considered major contributors to the global energy transition. Their success critically depends on subsurface resource quality, which in turn depends on specific subsurface parameters. For CCS and Geothermal Energy these in some respect overlap and others differ. Here, an overview is...
conference paper 2013
document
Hofstee, C. (author), Maas, J.H. (author), Loeve, D. (author)
The P18-4 compartment (operated by TAQA Energy B.V.) would be injected by CO2 at a minimum temperature of 12 degrees C. At these temperatures, the CO2 phase will either be a gas or a liquid. As the initial temperature of the reservoir is 120 oC, the CO2 will eventually be the gaseous or (at higher pressures), the supercritical phase. An...
conference paper 2013
document
Koenen, M. (author), Wasch, L.J. (author)
Many uncertainties exist in geochemical modeling. Mineral reactive surface area is one of the uncertain parameters. QEMSCAN analyses are performed on sandstone samples from a Dutch CO2 natural analogue to determine reactive surface areas. Geochemical modeling is performed using QEMSCAN surface areas and surface areas which are conventionally...
conference paper 2013
document
Wasch, L.J. (author), Koenen, M. (author), Wollenweber, J. (author), ter Heege, J.H. (author), Tambach, T.J. (author)
Large scale implementation of CO2 storage can significantly reduce emission of greenhouse gasses into the atmosphere. However, safe and long-term containment of CO2 in storage reservoirs must be ensured. Wellbores in the subsurface present possible leakage pathways for CO2 to the surface and hence wellbore cement reactivity is of major concern....
conference paper 2013
Searched for: subject%3A%22Earth%255C%2Bsciences%22
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