During the drilling procedure, the mud filtrates continuously penetrate into the formation because of the unbalance between the mud column pressure in the borehole and formation pressure.
在钻井过程中，井筒泥浆柱压力和地层压力的不平衡使得泥浆滤液不断渗入地层。
If a stable column of mud has been set up in the well, keeping the oil at bay through its sheer weight, the next step would be to set cement in the well and seal it off permanently.
如果一个稳定的泥浆柱能在油井里成型，并通过它十足的压力将石油限制在海湾范围，那下一步就是将井里的泥浆粘合好，使油井永久封闭。
The main environmental risk of the red mud residue field is which of the column slag dam, flood and geological disaster.
赤泥渣场的主要环境风险为栏渣坝风险，地质灾害风险和洪水风险。
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