申请人:Dow Global Technologies LLC
公开号:US10400564B2
公开(公告)日:2019-09-03
The present invention relates to an in situ staged steam extraction method for removing petroleum products from a heavy oil or bitumen reservoir from subterranean locations. Specifically, each injection stage comprises a different steam composition. A steam composition may consist essentially of steam or may comprise one or more enhanced oil recovery agent.
本发明涉及一种原地分级蒸汽萃取法,用于从地下重油或沥青储层中去除石油产品。具体来说,每个注入阶段包括不同的蒸汽成分。蒸汽组合物可以主要由蒸汽组成,也可以由一种或多种提高石油采收率剂组成。