Also in development are new drillingmuds that cool the drill bit during operation.
新的钻探泥浆(用于在操作时冷却钻头)也在开发中。
2
The helical flow of power-law drillingmuds in the drill string was studied both theoretically and experimentally.
本文从理论和实验方面研究了石油钻井泥浆常用的幂律液体在钻柱中的螺旋流动规律。
3
Applications include chemical compounds containing volatile materials, oil industry, drillingmuds and fracturing fluids, processed foods, polymers and paints.