Hercules 206
Short overview (for the top of the page)
Hercules 206 is a Bethlehem JU-200-MC class jack-up drilling unit (built 1982, Bethlehem Steel – Beaumont, TX) with 200 ft design water depth and 20,000 ft drilling depth rating, classed ABS ✠ A1 Self-Elevating Drilling Unit.
Quick Facts
• Design: Bethlehem JU-200-MC 
• Builder / Yard: Bethlehem Steel, Beaumont, TX 
• Year Built: 1982 
• Class: ABS ✠ A1 Self-Elevating Drilling Unit 
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Principal Dimensions
• Hull Length: 157 ft 
• Hull Breadth: 132 ft 
• Depth: 18 ft 
• Legs: 3 × 269 ft 
• Leg Spacing: 127 ft longitudinal / 110 ft transverse 
• Cantilever Envelope: Aft reach 45 ft × port/stbd 10 ft 
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Operating Parameters
• Design Water Depth: 200 ft 
• Drilling Depth Rating: 20,000 ft 
• Design Criteria: IMO, SOLAS & MARPOL 
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Maximum Allowable Loads
• Variable Deck Load: 4,290 kips (includes drilling loads) 
• Static Hook Load: 750,000 lbs 
• Setback: 650,000 lbs 
• Rotary: 750,000 lbs 
• Max Cantilever Load: 1,000,000 lbs 
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Additional Data
• Accommodations: 88 berths 
• Helideck: Rated for Sikorsky S-61 
Storage Capacities
• Fuel: 2,028 bbls 
• Drill Water: 5,948 bbls 
• Potable Water: 1,050 bbls 
• Liquid Mud: 1,569 bbls 
• Bulk Mud / Cement: 4,360 ft³ / 3,000 ft³ 
• Sack Material: 3,000 sacks 
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Power System
• Main Power: 3× EMD MD-12-645-E1 (900 rpm / 1,500 hp) with 6× EMD D-79 (890 vdc / 645 kW) generators and 3× Columbia 480 VAC / 600 kW generators 
• Power System: DC / DC 
• Emergency Power: 1× Caterpillar D353 (1,200 rpm / 400 hp) driving Caterpillar 480 VAC / 300 kW generator 
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Hoisting & Cranes
• Cranes: 2× Link-Belt 218A, 100 ft boom; 35 tons @ 25 ft 
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Drilling Package (Key Equipment)
• Derrick: Branham 160’ × 30’ × 30’; static hook load 750,000 lbs 
• Drawworks: Mid Continent U-1220-EB; driven by 2× EMD D79-MB DC motors; rated 2,000 hp 
• Rotary Table: National C-375, 37-1/2” 
• Top Drive: Varco TDS-11SA, 500 ton 
• Crown Block: Branham Universal, 650 ton 
• Traveling Block: McKissick Type RP, 550 ton 
• Mud Pumps: 2× Gardner Denver PZ-11 triplex 
• Solids Control: 3× Brandt King Cobra Hybrid; 1× King Cobra Mud Conditioner; 1× Brandt DG-10 Degasser 
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Well Control System
• BOP Stack:
• 13-5/8” Shaffer annular, 5,000 lb WP, H₂S trim 
• 13-5/8” Cameron Type “U”, 10,000 psi WP double ram, H₂S trim 
• 13-5/8” Cameron Type “U”, 10,000 psi WP single ram, H₂S trim 
• BOP Handling: 2× Braden CH175A overhead cranes; 35 tons each; 70 tons combined 
