| 发明名称 | High density cement formulation to prevent gas migration problems | ||
| 摘要 | The invention provides a high density cement composition for preventing gas migration. The composition includes a silica sand component, a silica flour component, a hematite component, a manganese tetraoxide component, and an expansion additive component. | ||
| 申请公布号 | US9273242(B2) | 申请公布日期 | 2016.03.01 |
| 申请号 | US201414480874 | 申请日期 | 2014.09.09 |
| 申请人 | Saudi Arabian Oil Company | 发明人 | Al-Yami Abdullah Saleh;Al-Humaidi Ahmad Saleh |
| 分类号 | C04B14/04;C09K8/493;C04B28/02;C09K8/48;C04B14/06;C04B22/00;C04B22/06 | 主分类号 | C04B14/04 |
| 代理机构 | Bracewell LLP | 代理人 | Bracewell LLP ;Rhebergen Constance Gall;Morgan Linda L. |
| 主权项 | 1. A cement composition for preventing gas migration and fluid loss consisting essentially of: silica sand in an amount of 10% by weight of cement; silica flour in an amount of 25% by weight of cement; hematite in an amount of 45% by weight of cement; manganese tetraoxide in an amount of 45% by weight of cement; calcined magnesium oxide in an amount of 5% by weight of cement; ethylene glycol in an amount of 1.2% by weight of cement; calcium lignosulfate in an amount of 0.45% by weight of cement; and acrylamide copolymer in an amount of 0.3% by weight of cement. | ||
| 地址 | SA | ||