Method of mounting in the water which is relatively shallow or moderately deep, and installation on the site of exploitation, of a flat - the form of a drilling and production petroleum a base - weight

摘要

In shallow water the deck 8 is mounted on the base I, then the columns 13 on the base, through openings 10 in the deck; then, with the base forming a floating transport body, the whole is towed to the site, the base is ballasted, it descends to the sea bed, the floating deck then retaining the base through the columns and finally the deck is hoisted to its final height. IMAGE