公开(公告)号：EP3039354A4

公开(公告)日：2016-11-16

申请号：EP14839396

申请日：2014-08-27

申请人： GEOVARME AS

发明人： SØNJU OTTO KRISTIAN ,  HALMRAST BJØRN ,  MOE PER THOMAS

IPC分类号： F24J3/08 ,  E21B7/00 ,  E21B7/06 ,  F28D20/00

CPC分类号： F24J3/081 ,  E21B7/00 ,  E21B7/061 ,  Y02E10/12

摘要： A plant for exploiting geothermal energy by circulating water or another fluid through a non-porous geological formation at a substantial depth below the earth surface, comprising multiple heat absorbing/production holes penetrating the said formation, with a total length of several kilometers and spaced more than 50 m apart. The production holes are connected to the surface by one single combined supply and return hole in which upward and downward flow is separated by a pipe comprising an insulating material and a seal. At the given positions of the common supply and return hole manifold zone designs connect the hole to the multiple production holes. The supply and return holes and production holes are closed circuits for transport of a fluid such as water through the said formation. A method for designing and establishing the plant is also disclosed.