Event+Phases

=Event Phases= The final event will be broken into 5 phases. To move on to the next phase certain data should be collected or certain tasks should be completed. However, each phase will be time limited and we may need to move on before everything is complete.

Each phase will be announced. During each phase only active teams may be on the pool deck, all other teams will be in the seating area. At the conclusion of each phase everyone will return to the seating area and progress will be announced before moving on.

You have each been chosen for your engineering expertise to work together to mitigate this disaster. Your ships are allowed to approach three sides of a 25 X 25 meter area surrounding the rig, know as the disaster area. Your ships may not move into this area, but you may used ROV’s and AUV’s to help collect data or complete tasks within this area.

There has been an explosion on an off shore oilrig. A large surface oil slick has begun to emerge. The damage due to the surface spill needs to be evaluated and cleaned up.
 * Phase 1: Explosion and Surface Spill**
 * **//Contain surface spill://** ** (Newton North) **prevent the surface oil from continuing to spread
 * **//Begin to clean up surface spill// (British School of Boston)//:// ** remove the surface oil from the disaster area

We have begun to assess the surface damage, but evidence suggests that there may be damage to the drilling riser beneath the surface. The riser needs to be inspected for damage, however, the drilling rig is a safety hazard and there is underwater debris blocking access to the riser.
 * Phase 2: Debris Removal and Drilling Rig Relocation**

The drilling rig must be moved from the damage site, but it has lost power and cannot move or separate from the riser. To move the rig, it must be cut away from the riser and pushed or towed from the damage site.

Additionally, there is debris surrounding the riser that must be removed before the riser can be inspected.
 * **//Cut drilling rig from riser// (Newton North) **cut the drilling rig free from the riser so it can be cleared from the area
 * **//Move and secure drilling rig [???????????????????????]//** move the freed drilling rig to the edge of the disaster area
 * **//Clear Debris:// (Swampscott) **debris surrounding the riser must be moved to the edges of the disaster area.

Now that the area has been cleared of debris as well as the drilling rig, it is important to investigate the riser for damage and determine the location and extent of the damage if there is any.
 * Phase 3: Inspecting Riser and Investigating Damage**

The spread of the oil in the disaster area is a growing concern. Underwater plumes of dissolved oil are not visible on the surface and must be measured. Oil concentrations should be monitored throughout the disaster area to help determine how the oil is spreading and which areas contain levels harmful to marine life.


 * **//Inspect riser and locate damage:// (Dexter Southfield) ** use camera to locate leak along riser pipe ** (Stoneham) **use temperature sensors to locate leak along riser pipe.
 * **//Monitor spread of Oil:// (Stoneham) **distribute (temperature) sensors throughout the disaster area and monitor the spread of dissolved oil over time.

A leak has been located on the riser. This must be sealed off to prevent oil from continuing to leak into the environment.
 * Phase 4:** **Repair Damaged Riser**


 * **//Cut the damaged riser//** (Swampscott) cut the riser pipe below the damaged section so that it can be sealed off.
 * **//Seal the riser//** (?????????????????) Seal off the cut riser to stop the flow of oil.

The leak has been sealed, but a large volume of oil has been released into the environment. The remaining oil must be cleaned up and the total damage assessed.
 * Phase 5: Damage assessment**


 * **Continue cleanup** ** (British school of Boston) **continue removing the surface spill oil particles from the disaster area.
 * **Assess repair** ** (Stoneham) ** verify that the sealed riser is no longer leaking by measuring the dissolved oil near the riser.