| 发明名称 | Anti-accretion agents for drilling fluids | ||
| 摘要 | Esters of alkanolamines with unsaturated, polyunsaturated or saturated C8-C36 monocarboxylic acids are additives for reducing accretion on drilling equipment (anti-accretion agents) to be used in drilling muds during drilling and completion of oil and gas wells. | ||
| 申请公布号 | US8932997(B2) | 申请公布日期 | 2015.01.13 |
| 申请号 | US200912993648 | 申请日期 | 2009.05.18 |
| 申请人 | Lamberti SpA | 发明人 | Merli Luigi;Franchini Jacopo;Pirovano Pierangelo;Ossola Mattia;Federici Franco;Fornara Dario;Li Bassi Giuseppe |
| 分类号 | C09K8/28;C09K8/34;C09K8/16;C09K8/12;C09K8/528 | 主分类号 | C09K8/28 |
| 代理机构 | Mossman, Kumar & Tyler, PC | 代理人 | Mossman, Kumar & Tyler, PC |
| 主权项 | 1. A method for reducing accretion during oil and gas drilling operations, or in the subsequent completing or cementing operations of an oil or gas well, comprising drilling or completing an oil or gas well using a water-based drilling fluid comprising from 0.05 to 10% by weight of esters of alkanolamines with unsaturated, polyunsaturated or saturated C8-C36 monocarboxylic acids. | ||
| 地址 | Albizzate (VA) IT | ||