便携式钻机在海上平台进行勘察的应用实践

Application of the portable drilling rig in subsea tunnel exploration

为提高海上钻探施工效率、避免传统立轴式钻机在海上施工时易受到波浪和潮汐影响、钻进取心效率低、存在安全风险且易发孔内事故的难题,依托青岛胶州湾第二海底隧道勘察项目,在近海海上平台尝试使用了便携式钻机。介绍了近海海上常用的不同类型平台,提出便携式钻机在海上固定式平台和浮动平台上的钻进取心实施方案。探索研究出一种便携式钻机在浮动平台上的波浪补偿绳索取心钻进方法。高效、安全地完成了钻探任务。所提出的方案对同行有参考借鉴作用,有利于海洋工程的勘察。

In order to increase the offshore drilling efficiency,avoid the effect of the waves and tides on traditional spindle‑type drill,low core recovery and safe risk,the portable drilling rig was tried to be used on the offshore platform rely on the second submarine tunnel survey project of Jiaozhou Bay,Qingdao.Different types of platforms commonly used on the sea were introduced and the drilling and coring implementation solutions of portable drilling rig on offshore fixed platforms and floating platforms were put forward.A wave compensation wire‑line drilling and coring solution for portable drilling rig in floating platform was explored.With this solution,the drilling task was completed efficiently and safely.The proposed solution can provide reference and are benefit to marine engineering exploration.