Check out this interesting article on Piensa en Geotermia: http://www.piensageotermia.com/petreven-perforando-pozos-geotermicos-a-4600-metros-sobre-el-nivel-del-mar-en-chile/?utm_source=Lista+de+Piensa+en+Geotermia&utm_campaign=5ccc94ea58-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_a42515e818-5ccc94ea58-415225981
Petreven is protagonist with its operations at Cerro Pabellon, in Chile.