公开(公告)号：US20060127301A1

公开(公告)日：2006-06-15

申请号：US10536198

申请日：2003-12-01

申请人： Raphael Elitzur ,  Baruch Grinbaum ,  Miriam Freiberg-Bergstein

发明人： Raphael Elitzur ,  Baruch Grinbaum ,  Miriam Freiberg-Bergstein

IPC分类号： C01F11/34

CPC分类号： C09K8/04 ,  B09C1/00 ,  B09C1/02 ,  C01F11/34 ,  C09K8/032 ,  C09K17/06

摘要： A process for the preparation of Solid Calcium Bromide Hydrates comprises preparing a highly concentrated Calcium Bromide solution from an initial solution having a lower concentration, bringing it into contact with a cold surface, whereby solid Calcium Bromide hydrates form on said surface, and detaching said solid hydrates from said surface. The concentration of the initial solution is not higher than 60 wt %, typically 52 wt %, and is brought to from 65 to 78 wt %. The said Calcium Hydrates are mainly tetrahydrate Calcium Bromide. The Solid Calcium Hydrates have many uses in the processing of oil wells, for instance preparation of completion fluids, work-over fluids or drill-in fluids in the processing of wells, restoring already used and/or depleted such fluids to the desired, original density. They also have other uses, particularly for soil remediation.

摘要翻译： 制备固体溴化钙水合物的方法包括从具有较低浓度的初始溶液制备高度浓缩的溴化钙溶液，使其与冷表面接触，由此在所述表面上形成固体溴化钙水合物，并将所述固体 从表面水合。 初始溶液的浓度不高于60重量％，通常为52重量％，并且为65至78重量％。 所述钙水合物主要是四水合溴化钙。 固体钙水合物在加工油井方面有很多用途，例如在加工井中制备完井液，修补液或钻井液，将已经使用和/或耗尽的这种流体还原成所需的原始 密度。 他们还有其他用途，特别是土壤修复。