| 发明名称 | Glycerol based drilling fluids | ||
| 摘要 | The present invention relates to glycerol based drilling fluids. In particular, the invention relates to drilling fluids comprising a 95-20 volume % glycerol/water solution capable of stabilizing water-sensitive formations during drilling and the use of such solutions for drilling a well having water-sensitive formations. | ||
| 申请公布号 | US8969260(B2) | 申请公布日期 | 2015.03.03 |
| 申请号 | US201113280149 | 申请日期 | 2011.10.24 |
| 申请人 | HiTech Fluid Systems Ltd. | 发明人 | Pomerleau Daniel Guy |
| 分类号 | C09K8/34;C09K8/36;E21B47/18;E21B47/00;C09K8/12 | 主分类号 | C09K8/34 |
| 代理机构 | St. Onge Steward Johnston & Reens LLC | 代理人 | St. Onge Steward Johnston & Reens LLC |
| 主权项 | 1. A method of drilling a well having a water-sensitive formation comprising the steps of: a) preparing a drilling solution comprising a 95:5 to 20:80 volume % glycerol:water solution including dissolved and partially hydrolysed-polyacrylonitrile (PH-PAN), the solution capable of stabilizing water-sensitive formations during drilling; and, b) drilling a well with the drilling solution prepared in step a). | ||
| 地址 | CA | ||