In a company video, an animation maps Mantle Energy's approach — a horizontal well loop that draws heat from deep rock to power a neighborhood and an industrial plant above ground. The Dallas startup aims to turn oil and gas wells into a "vast geothermal energy source." [[Image: Mantle Energy video screenshot via Vimeo]
Mantle, a Hunt Innovative Technologies spinout, uses groundbreaking techniques to create heat in oil and gas formations to extract more oil from reservoirs than traditional methods—along with geothermal energy, which offers a lower carbon baseload power. The method could unlock as much as 90% of the reservoir potential previously left behind, Mantle said.