Did you know that the first wells were drilled over 2000 years ago? Drilling is an ancient...

Refers to non-radioactive isotopes of elements, including those of oxygen, hydrogen, carbon, sulfur, and nitrogen. In geothermal geochemistry, the stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H) in thermal waters are used to trace its origin (e.g., meteoric, magmatic).
Steam-heated water A shallow formed water resulting from condensation of steam into groundwater accompanied by absorption of carbon dioxide to form a bicarbonate water or by absorption of H2S that oxidizes to sulfate to produce an acid-sulfate water.
Stimulation An operation carried out on a well that increases production or injection by improving the flow characteristics of the reservoir and enhancing the flow between the reservoir and the wellbore.
Stored Heat Calculated thermal energy stored in a volume of hot rock. It is calculated using the rock volume, porosity, rock density, specific heat of rock, and the difference between the reservoir temperature and the background temperature given by the geothermal...