规模化主动穿刺在南中国海的应用

The application of large-scale active puncture in the South China Sea

一些海底土层表面上看起来很硬,但实际上只是薄薄的一层“硬壳”,而下面却很软,这种地层可以形象地比作“鸡蛋壳”地层。如果在这种地层上进行自升式钻井平台插桩就位作业,就会发生倾覆的风险。因此,在施工之前要弄清地质情况,通过打钻、采样等手段,将“鸡蛋壳”地层破坏掉,确保工程设施的安全。

Some seafloor layers look hard on the surface,but are actually only a thin layer of"hard shell",while the underlying layer is very soft,which can be likened to the"egg shell"layer.There is a risk of capsizing if a jack-up rig is placed in such a formation.Therefore,it is necessary to understand the geological situation before construction,and destroy the"egg shell"formation by drilling,sampling and other means to ensure the safety of engineering facilities.