Geothermal wells need to undergo a test program before they are used. This is so that the baseline conditions of both the wells and the geothermal aquifers that they tap can be determined. This baseline data are critical because all future information is compared against them.
After drilling has been completed and before the initial discharge, the well downhole conditions are measured. The temperature and pressure are measured by using a clockwork Kuster gauge or electronic logging tools. Standard practice is to initially do an injection (or completion) test, that is, sometime at a series of flows, where the temperature, pressure, and possibly flows using a spinner tool are measured at intervals down the open hole section of the well. (more…)
“Spain has great potential but lack geothermal legislation and investment.” Besides being clean, renewable and friendly, easily manageable, which contributes to security of energy supply.
However, like other renewable energy sources, requires the development of sustainable energy technology push policies and efficient and environment economic support. (more…)
According to the German standard VDI 4640 geothermal energy is stored energy as heat beneath the Earth’s solid surface, encompasses the heat stored in rocks, soils and groundwater.
The main energy sources charge of the land are two: the first is the heat recovery of the Earth that can be assessed by the thermal gradient (variation of temperature versus depth), usually increase of 3.3 º C per 100 m depth. (more…)
