.: Suction Pile Installation Suction piles are the predominant mooring and foundation system used for deepwater oil and gas development projects worldwide. They have shown to be effective and easy to install.

.: Introduction

The Suction Pile will start off suspended a short distance above the sea floor with its valves open. There are four makers, pre-installed, to help guide the pile to its destination. These will be used to insure proper placement of the Suction Pile. The level meter on the Suction Pile will be used to confirm a level landing. Once landed, the valves of the Suction Pile must be closed and a bore stab will be inserted to apply suction and drill the Suction Pile into the bathymetry. The bore stab is held by a receptacle on the Rigmaster manipulator.

.: Procedure

1. Lower the Suction Pile into position by selecting the “VMAX-suctionpile” cable. (Found on Control Tab in the Instructor GUI).
2. Observe the pile as it lans to assure is in the correct location.
3. Provide adequate slack to keep the pile on the sea floor in spite of any rough seas.
4. Pilot the ROV towards the Suction Pile.
5. Using a manipulator, close the valves on the pile (B) (See reference picture)
a. The two valve stems nearest the center of the pile cannot be used.
6. Insert the bore stab into the receptacle (A) (See reference picture)
7. Once the bore stab is inserted, activate the suction.
8. While the suction is activated, you must pay out the cable holding the suction pile.
9. Observe the Suction Pile descend.
a. Cease suction if the pile does not remain leve.
b. Maintain adequate but not excessive slack in the cable.
10. Lower the Suction Pile until the white horizontal line is roughly level with the sea floor.
11. Remove the bore stab when Suction Pile installation is complete.

.: Control Scheme

Action	Control System	Manifold	Valve	Control	Desktop / Debug
Pump Control	XLS and XL	2	10	A – Apply Suction B – Apply Pressure
	XLX	3	12
Pay-Out to Suction Pile	XLS and XL	2	1	A – Pay-Out B – Stop
	XLX	3	3
Pay-In from Suction Pile	XLS and XL	2	1	A – Pay-In B – Stop
	XLX	3	4

.: Notes to Remember

1. The middle position on the Pump Control action is used to Stop the suction or pressure.
2. When Paying In or Out from the Suction Pile you can hold the control for faster response.
3. The Pump Control will only function when the bore stab is in place and both valves on the Suction Pile are closed.
4. The instructor’s “Overlay” view has a flag that is shown named “Overslack”. If this value becomes true, the trainee has allowed to much cable to be payed out.

.: Reference Pictures

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