Subsea Anchorage Scheme Research of Mud Recovery Line for Deepwater Riserless Mudlift Drilling System

The riserless subsea mudlift drilling is an effective solution to deal with the difficulty of surface drilling in complicated deepwater environment.Based on the research of system configuration of deepwater riserless mudlift drilling,according to the condition requirement of the mud recovery line,the current commonly used anchorage scheme was analyzed,and the subsea anchorage scheme of mud recovery line was proposed,which is suitable for the condition of deepwater.The scheme principle was analyzed to accomplish the structure design of the scheme.