SIMULTANEOUS LAY AND PLOUGH BURIAL OF SUBMARINE POWER CABLES, SUBSEA UMBILICALS AND COILED LINE PIPE

摘要

The current proposal relates to the simultaneous lay and plough burial of submarine power cables, subsea umbilicals and/or coiled line pipe, e.g. from shore or platforms to subsea production systems, from shore to platforms, between platforms, from shore to windmill fields, and/or between windmills. Lay and plough burial techniques have been used previously for the installation of submarine cables. The lay and plough methodology Is currently used in the telecoms Industry with a bollard pull of up to 100 tonnes. The lay speed and vessel rates are similar to surface lay with a suppressor, typically 15 km/day.