Brief description of the installation of a flat - the form of gravity self - elevatrice for the production of a field petrolier at sea.

摘要

According to this process, a) is a floating assembly constituted by a - structure (1) and a bridge (2) resting on the base (3) of the structure under - up to a sheltered location means of a depth greater than that of the installation site, b) is ballasted in - structure (1) to move the - latter towards the bottom, whereas the bridge (2), floats on the surface of the water, c) it stops the ballasting of the structure under - when the base (3) reaches a predetermined depth and it then locks the bridge on the columns (4i) of the structure under - (1), d) ballast is then removed from the under - structure until the bridge is raised to a predetermined height to the - the top of the surface of the water, e) is the set up at the site of the installation of the final and f) is ballasted again under - structure until it rests on the sea bottom (9).