| 发明名称 | Additive for drilling fluid used as a shale stabilizing agent in subterranean wellbores | ||
| 摘要 | An additive for drilling fluid used as both a sealing agent to prevent seepage loss and a shale stabilizing agent in subterranean wellbores. The additive includes ground bituminous coal having a selected particle size distribution wherein the bituminous coal is between 60% to 80% of the additive by weight. The additive also includes solvent extracted ground flaxmeal which is between 20% to 40% of the additive by weight. | ||
| 申请公布号 | US9550932(B1) | 申请公布日期 | 2017.01.24 |
| 申请号 | US201514668530 | 申请日期 | 2015.03.25 |
| 申请人 | WELDRIL HOLDINGS, L.L.C. | 发明人 | Kemp Nantelle P.;Kemp Marwin K.;Kelley Johnnie M.;Wilson Graham A. |
| 分类号 | C09K8/42;C09K8/035 | 主分类号 | C09K8/42 |
| 代理机构 | Head, Johnson & Kachigian, P.C. | 代理人 | Head, Johnson & Kachigian, P.C. |
| 主权项 | 1. An additive for drilling fluid used as both a sealing agent to prevent seepage loss and a shale stabilizing agent in subterranean wellbores, which additive comprises: ground bituminous coal having a selected particle size distribution wherein said bituminous coal is between 60% to 80% of the additive by weight, wherein the selected particle size distribution of the ground bituminous coal has 50% of its particles less than 75 microns and a median particle size of about 75 microns; and ground flaxmeal which is between 20% to 40% of the additive by weight. | ||
| 地址 | Muskogee OK US | ||