公开(公告)号：US20020130090A1

公开(公告)日：2002-09-19

申请号：US10097799

申请日：2002-03-14

申请人： Tetra Technologies, Inc.

发明人： Raymond D. Symens ,  Lyle H. Howard ,  Thomas William Polkinghorn ,  Surendra Kumar Mishra

IPC分类号： C02F001/70 ,  C02F001/76

CPC分类号： E21B21/068

摘要： A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. and containing both soluble and insoluble impurities. This method comprises the steps of (1) adding acid to the used halide fluid so that the pH is within a range of approximately 0 to 10.0; (2) contacting the used halide fluid with halogen to increase the density to at least 10.0 lbs./gal., adjust the desired true crystallization temperature of the fluid and oxidize soluble impurities; (3) adding a reducing agent while maintaining the temperature at a minimum of 10null C.; (4) contacting the fluid with an alkali to neutralize excess acid; and (5) separating any suspended solid impurities from the fluid.

摘要翻译： 一种用于再生所用卤化物流体的方法，其包括密度大于9.0lbs / gal。 并含有可溶性和不溶性杂质。 该方法包括以下步骤：（1）向所用卤化物流体中加入酸，使得pH在约0至10.0的范围内; （2）将卤化物流体与卤素接触以将密度提高至至少10.0lbs./gal，调节所需流体的真实结晶温度并氧化可溶性杂质; （3）在保持温度至少为10℃的同时加入还原剂; （4）使液体与碱接触以中和过量的酸; 和（5）从流体中分离任何悬浮的固体杂质。