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在钻进过程中,洗井的主要目的是为了及时地清除井内岩粉,同时冷却钻头.洗井的方法,除一般使用的清水洗井以外,在特殊情况下还有泥浆洗井、空气洗井以及盐溶液洗井等等.人造金刚石钻进与钢粒或合金钻进不一样,它具有口径小(环状间隙小)、转速高、进尺快的特点.这样一来,钻具与井壁间就要产生较大的回转摩擦阻力;钻头端面的金刚石在迅速刻取岩石的同时也要产生大量的摩擦热.因此,金刚石钻进要求洗井液
During the drilling process, the main purpose of well washing is to timely remove the rock powder in the well and cool the drill bit at the same time.In addition to the commonly used water washing wells, there are also mud washing and air washing in special cases Wells and salt solution washing wells, etc. Synthetic diamond drilling is not the same with steel or alloy drilling, it has the characteristics of small caliber (small annular gap), high speed, fast footage, so drilling and well The wall will have a greater rotary frictional resistance; diamond diamond drill face at the same time also have a lot of friction heat to produce rock.Therefore, diamond drilling fluid