Extreme oil rig

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Extreme oil rig

  1. 1. A Seminar Presentation On EXTREME OIL RIG Presented By: Abhishek Tanwar (ME08002)
  2. 2. OIL RIG • An oil rig, is a large structure with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining and marketing. • Depending on the circumstances, the platform may be fixed to the ocean floor, may consist of an artificial island, or may float.
  3. 3. Types of Off Shore Oil Rig • Jack up • Fixed rig • Drill ships • Semi-submersibles
  4. 4. EXTREME OIL RIG EIRIK RAUDE
  5. 5. Eirik Raude • Hull built in Dalian China. • First stage outfitting in Pascagoula, Mississippi. • Final outfitting: Halifax Shipyard, Nova Scotia, Canada – 2002. • Upgraded in Ølen Norway. • Dimension : length 119.38m , width 85.50m. • Additional winterization. • Eirik Raude has drilled 28 deepwater wells, 9 of these in harsh environment. • Torbrook C – 15, Canada , water depth 1674m.
  6. 6. OVERALL CONFIGURATION OF EIRIK RAUDE • EIRIK RAUDE is the latest 5th generation semi-submersible floating rig, which capable to drill well not just in deep water but ultra deep water. • Its name is based on the person named ‘EIRIK THE RED’ who discovered ICE LAND. • First voyage starts from ‘HALIFAX HARBOUR’,CANADA and drill its first well at east cost of Canada at Nova Scotia. • Normal oil rigs can drill about 4000 feet but EIRIK can drill 10,000 feet. • From sea bed EIRIK can drill 20,000 feet through the earth. • Not fixed to ocean floor but float on two massive submerged PONTOONS. • The system of 6 giant thruster hold the rig while drilling using special system called DYNAMIC POSITIONING (DP).
  7. 7. ANCHOR • For monster rig like EIRIK has a four 22 ton anchor. • So, need a tug to release each anchor from a sludge. • It’s a slow process takes nearly 2hrs to lift each anchor
  8. 8. DESIGN • It is design to survive worst kind of weather. • A hurricane force 12. • Winds over 80 miles/hr. • Wave up to 70 feet.
  9. 9. CUT SECTION
  10. 10. REASON BEHIND THIS INVENTION • As we burn away more of the fossil fuel, exploration of oiling gas is moved from land to sea. • Insecurity feel by oil company to fill spontaneous demand. • Due to limited length of leg of short oil rig unable to fixed in deep water.
  11. 11. COMPARTMENTS 1. BRIDGE 2. SAFETY 3. THRUSTER ROOM (DP) 4. ROV CONTROL ROOM 5. DRILL FLOOR 6. ACCOMMODATION BLOCK
  12. 12. BRIDGE
  13. 13. • Main control room. • All system are checked before made its voyage from the watch full eye of the captain from the bridge.
  14. 14. SAFETY
  15. 15. • Eirik is fitted with latest escape equipment. • Including “PROD LAUNCH” life boat system.
  16. 16. THRUSTER ROOM
  17. 17. THRUSTER ROOM
  18. 18. THRUSTER ROOM • 6 thruster each driven by gigantic electric motor. • Max. 750 rpm of shaft. • If all 6 thruster can run with full power ,EIRIK could produce 600 tonne of thrust & would use 16,500 gallons of fuel a day. • At top speed of 7 miles/hr gulp 1000 gallons of fuel/mile. • So, it is also a huge guzzler of oil. • It uses the system called DYNAMIC POSITIONING (DP) to hold its place above the well. • DP uses 6 global positioning satellite at a time to find out exactly where it is. • This system is so powerful that EIRIK hold its position within a feet even in 52 foot wave & 60 mile/hr winds.
  19. 19. Eirik Raude Thrusters 4 Blade, modified Kaplan Diameter 4.1m Max RPM 157 Thrust 100 ton each
  20. 20. ROV CONTROL ROOM
  21. 21. ROV CONTROL ROOM
  22. 22. ROV CONTROL ROOM • Small submarine called ‘REMOTELY OPERATED VEHICLE’ which is used to keep eye on advancement underneath the sea. • Normal ROV operate upto 4000 feet but EIRIK’s ROV can operate about 12000 feet.
  23. 23. DRILL FLOOR
  24. 24. DRILL FLOOR • In any rig the heart of operation is the drill floor. • First step is to drill a pilot well by using 12inch bit & to check dangerous gas leak & then 42 inch bit for main drill. • Section consists of drill bit motor & sensors. • More than 24hrs to lower 66 section of pipe to reach the sea bed 6000 feet below.
  25. 25. ACCOMMODATION BLOCK
  26. 26. ACCOMMODATION BLOCK • It is situated at front of the rig as far as possible from the danger of drilling. • Because drill floor is at the center of rig. It contains : • 11 OFFICES • CABINS • BRIDGE • CANTEEN • AND EIRIK’S OWN HOSPITAL • 140 ER PERSONS TOTAL CAPACITY • GALLEY AND MESS HOUSE • DAY ROOM NONE SMOKING & DAY ROOM SMOKING • TV LOUNGE SMOKING &NON SMOKING • SAUNA • GYMNASIUM
  27. 27. SMOKING ROOM
  28. 28. OIL EXPLORATION • It’s a huge gamble which cost them a quarter of million US $/day, i.e drilling is very expensive. • So geologist take seismic data using survey ship. • And using these data , careful planning is done using 3D simulation at NORWAY UNIVERSITY OF SCIENCE & TECHNOLOGY.
  29. 29. Seismic Survey • Special ships equipped with air guns to produce shock waves and reflections are captured by hydrophones (geophone). • The speed and strength of the reflected waves depends on the density of the strata they encounter. Rock becomes denser the deeper underground it is located, but pockets of gas and oil have a much lower density. The denser the material is, the faster the waves will be reflected. • As the seismic waves encounter lower density materials, more of their energy passes through. • By analyzing the time it takes for the waves to be reflected, geologists can build an accurate image of the subsoil by using 3D seismic interpretation software. • Analysis of the seismic data provides vital information on petroleum geology of the area of interest. • This information can tell us the possibility of hydrocarbon reserve.
  30. 30. Seismic Survey
  31. 31. THANKS FOR YOUR ATTENTION

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