IMCA Diving Division

Publication Details

Diving Operations in Support of Intervention on Wellheads and Subsea Facilities

It is recognised that there are demands on the diving industry to perform an increasing range of tasks on subsea facilities. Over recent years a number of incidents have occurred from which a great deal of knowledge has been gained. This guidance has been written to assist both operators and contractors in reducing the risks to divers when executing such tasks. Typically, these tasks involve wellhead intervention work, flow base installation, umbilical tie-in, control module installation/replacement, and also general inspection, repair and maintenance activities. When planning such tasks, hazard identification and work control are critical, especially when commissioning or when concurrent production activities are ongoing.