Geothermal drilling technology is adapted from the oil industry. Most of the geothermal wells are drilled with a rotary-type drilling rig. Because of the hard, abrasive, and high-temperature volcanic rocks of geothermal systems, the drilling bits require hard abrasive resistant teeth such as diamond or tungsten carbide. Hence, geothermal drilling is an expensive activity in geothermal development. Most geothermal wells are drilled 1 to 2 km deep to intersect faults and fractures so as to increase the success rate of production from permeable zones. (more…)
Geothermal wells need to undergo a test program before they are used. This is so that the baseline conditions of both the wells and ...
According to the German standard VDI 4640 geothermal energy is stored energy as heat beneath the Earth's solid surface, encompa ...
Geothermal energy is energy created by the heat of the Earth. Under the Earth’s crust lies a layer of thick, hot rock with occa ...
In most countries, geothermal resources are classified as natural resources belonging to the government. Since the 1980s, there has ...
The Geologists Association president advocates the use of geothermal energy by its high durability and low maintenance. Besides a r ...
