Device and method for slanting a conductor casing

A method for slanting a conductor casing when establishing a petroleum well wherein a suction foundation includes an outer jacket and a supporting pipe, the supporting pipe and the outer jacket being arranged to be inserted into the seabed, the supporting pipe being arranged to receive the conductor casing, wherein the method comprises:

• arranging a casing shoe at a vertical distance below an upper end portion of the supporting pipe, the casing shoe forming a through casing-shoe opening eccentric relative to the supporting pipe;
• inserting the suction foundation into the seabed;
• arranging a guide plate, which has a through guide opening eccentric relative to the supporting pipe, in a releasable manner at the upper portion of the supporting pipe;
• and
• moving the conductor casing, slanted relative to the supporting pipe, through the guide opening and the casing-shoe opening and down into the seabed.

A system for establishing a petroleum well, the system comprising:

• a supporting pipe defining a central axis;
• and
• a casing shoe defining a casing-shoe opening, the casing shoe configured to be situated below a seabed at a lower end portion of the supporting pipe;
• wherein a central axis of the casing-shoe opening is eccentric relative to the central axis of the supporting pipe, and wherein the casing-shoe opening is configured to permit passage of a conductor casing therethrough into the seabed at a slant relative to the central axis of the supporting pipe.