| 发明名称 |
MÉTODO PARA A INIBIÇÃO HIDRATAÇÃO DE ARGILAS NAS OPERAÇÕES DE PERFURAÇÃO, E, FLUIDO DE PERFURAÇÃO COM BASE AQUOSA |
| 摘要 |
The present invention relates to a method for inhibiting hydration of clays in drilling operations comprising the use of an aqueous based drilling fluid containing from 0.2 to 5 wt % of 1,2-cyclohexanediamine and/or its salts. |
| 申请公布号 |
BRPI0418995(B1) |
申请公布日期 |
2014.11.11 |
| 申请号 |
BR2004PI18995 |
申请日期 |
2004.08.06 |
| 申请人 |
LAMBERTI SPA |
发明人 |
LUIGI MERLI;GUIDO DE STEFANO;GIUSEPPE LI BASSI |
| 分类号 |
C09K8/12;C09K8/14;C09K8/18;C09K8/22;E21B43/25;E21B43/26 |
主分类号 |
C09K8/12 |
| 代理机构 |
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