Process for the preparation of cabr2 hydrates and uses thereof
    2.
    发明申请
    Process for the preparation of cabr2 hydrates and uses thereof 审中-公开
    制备cabr2水合物的方法及其用途

    公开(公告)号:US20060127301A1

    公开(公告)日:2006-06-15

    申请号:US10536198

    申请日:2003-12-01

    IPC分类号: C01F11/34

    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。

    On-line analyzer for active halogens
    3.
    发明授权
    On-line analyzer for active halogens 失效
    用于活性卤素的在线分析仪

    公开(公告)号:US06241864B1

    公开(公告)日:2001-06-05

    申请号:US09407812

    申请日:1999-09-28

    IPC分类号: G02N2726

    CPC分类号: G01N27/49

    摘要: A potentiostatic analyzer for active halogens in conducting solutions that contain also the corresponding halide comprises, in combination: a) a concentration-to-current transducer, which is an electrolytic cell; b) means for providing a controlled flow of the solution being analyzed through the cell; and c) a potentiostatic transmitter for controlling the electrodes of the electrolytic cell.

    摘要翻译: 还包含相应的卤化物的导电溶液中的活性卤素的恒电位分析仪包括:a)作为电解池的浓度 - 电流换能器; b)用于提供通过电池分析的溶液的受控流动的装置; 和c)用于控制电解池电极的恒电位发射器。