公开(公告)号：US20170321103A1

公开(公告)日：2017-11-09

申请号：US15526614

申请日：2015-11-06

申请人： LAMBERTI SPA

发明人： Erik GALLO ,  Luigi MERLI ,  Pierangelo PIROVANO ,  Letizia PRIVITERA ,  Massimo CECCHETTO ,  Giovanni FLORIDI ,  Giuseppe LI BASSI

IPC分类号： C09K8/36 ,  E21B21/00 ,  C09K8/58 ,  C09K8/584

CPC分类号： C09K8/36 ,  C09K8/58 ,  C09K8/584 ,  C09K2208/10 ,  C09K2208/14 ,  C09K2208/34 ,  E21B21/00

摘要： Method for increasing lubricity of a wellbore fluid comprising the following steps: i) preparing a water in oil microemulsion that contains insoluble particles of metal hydroxides and/or metal oxides in the inner aqueous phase, the insoluble particles being synthesized from their salt precursors in the water droplets of the microemulsion; ii) adding to the wellbore fluid the water in oil microemulsion; iii) injecting the wellbore fluid into a subterranean formation and iv) performing the drilling, completion or coiled tubing operations in the subterranean formation.