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Drilling shows extended reservoir at San Emidio project in Nevada

Drilling shows extended reservoir at San Emidio project in Nevada San Emidio power plant in Nevada, U.S. (Source: U.S. Geothermal)
Alexander Richter 8 Aug 2016

Drilling work at the San Emidio project of U.S. Geothermal shows an extended size for the geothermal reservoir, which could support additional power generation.

In a release today, U.S. Geothermal Inc. announced that it has deepened two wells at the San Emidio project. Both wells intersected high temperature geothermal fluid and high permeability.

In a follow up to the five well temperature gradient drilling program completed last year, two wells were deepened based on their high thermal gradient and bottom hole temperature. Well 17-21, intersected the geothermal resource at 1,766 feet and has a measured flowing temperature of 319°F. Well 25-21 intersected the geothermal resource at 2,206 feet and has a measured flowing temperature of 322°F. Both wells flow under artesian pressure.

“These two wells have extended the size of the San Emidio Phase II reservoir. Also significant is that this area of the reservoir has temperature that is 40°F higher than we are currently producing in the San Emidio Phase I reservoir,” said Dennis Gilles, CEO. “This is an exciting outcome for the project and confirms our confidence that the San Emidio resource is large enough to support additional power generation.”

Both wells will undergo further testing to obtain data to be used to optimize the numerical reservoir model.

Source: Company release