发明名称 |
Calcium-free clear high density fluids |
摘要 |
Clear high density fluids for use as completion, packing and perforation media in oil and gas well formations having high carbonate and/or high sulfate ion concentration are formulated from aqueous solutions of zinc bromide and one or more alkali metal bromides and have densities lying in the range of about 15.0 to 20.5 lb./gal and a pH lying in the range of about 1.0 to 5.5, with the alkali metal bromide being provided in an amount approaching its solubility limit in water.
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申请公布号 |
US4941982(A) |
申请公布日期 |
1990.07.17 |
申请号 |
US19880225347 |
申请日期 |
1988.07.28 |
申请人 |
GREAT LAKES CHEMICAL CORPORATION |
发明人 |
DADGAR, AHMAD;SHIN, CHARLES C. |
分类号 |
C09K8/16;E21B33/12;E21B43/119 |
主分类号 |
C09K8/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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