公开(公告)号：WO2013055843A8

公开(公告)日：2014-08-07

申请号：PCT/US2012059636

申请日：2012-10-11

申请人： SAUDI ARABIAN OIL CO ,  ARAMCO SERVICES CO

发明人： AL-SUBHI MOHAMMAD LAFI ,  JENNINGS SCOTT STEVEN ,  AL-HUMAIDI AHMAD SALEH

IPC分类号： C09K8/40

CPC分类号： C09K8/40 ,  C04B14/368 ,  C04B24/023 ,  C04B24/28 ,  C04B24/38 ,  C04B26/04 ,  C04B28/04 ,  C04B2103/0079 ,  C04B2103/40 ,  C04B2103/50

摘要： A spacer fluid made of a viscosity thinner, a weighting agent, an antifoaming agent, and a non-ionic surfactant in a base aqueous fluid. In some instances, the viscosity thinner is a sulfomethylated tannin, the weighting agent is barium sulfate, the antifoaming agent is a silicone, and the non-ionic surfactant is an ethoxylated alcohol. A method of treating a well bore annulus in preparation of introducing water-based cement slurry into a well bore using the spacer fluid. A method of using the spacer fluid to position a first fluid into a well bore annulus of a well bore containing a second fluid. A method for fluidly isolating at least a portion of a well bore annulus in a well bore containing an oil-based drilling fluid using water-based cement slurry and the spacer fluid.

摘要翻译： 在基础水性流体中由粘度较小的隔离液，增重剂，消泡剂和非离子表面活性剂制成。 在一些情况下，粘度稀释剂是磺甲基化的单宁，加重剂是硫酸钡，消泡剂是硅氧烷，非离子表面活性剂是乙氧基化醇。 一种处理井筒环的方法，用于使用间隔液将水基水泥浆引入井眼。 使用间隔流体将第一流体定位到包含第二流体的井眼的井筒环形空间中的方法。 一种用于使用水基水泥浆和间隔液在含有油基钻井液的井眼中流体隔离井筒环的至少一部分的方法。