1. It's difficult to sidetrack in the deep well in salt bed, especially the creeping of the gypsum-salt bed, hole diameter reduction and collapsion etc. are the biggest barriers for sidetrack drilling.
在深井盐层中进行侧钻困难较大，膏盐层的蠕动、缩径、垮塌等不稳定性是侧钻的最大障碍。
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2. It's difficult to sidetrack in the deep well in salt bed, especially the creeping of the gypsum-salt bed, hole diameter reduction and collapsion etc. are the biggest barriers for sidetrack drilling.
