GENERAL DESCRIPTION
B-301 is a three-leg independent jack-up drilling unit, built in 1978 by Marine Development Corporation and classed by ABS as a Self-Elevating Drilling Unit. Designed for shelf and shallow-water offshore drilling, the rig has operated primarily in the Campeche Field, Offshore Mexico, under restricted service.
The unit represents a robust U.S. Gulf / Mexico–style jack-up, optimized for development drilling, work-overs, and platform-adjacent operations, with proven mechanical systems and a compact hull footprint.
TECHNICAL POSITIONING
B-301 is a compact, heavy-duty shelf jack-up, suitable for:
• Development drilling
• Work-over and recompilation programs
• Platform-adjacent wells
• Potential conversion to work-over, utility, or light MOPU support roles (subject to class review)
CLASSIFICATION & OWNERSHIP
• Rig Name: B-301
• Rig Type: Jack-Up Drilling Rig (Self-Elevating)
• Owner / Manager: Paragon Offshore Inc.
• Flag: Liberia
• Class: ABS +A1
• MODU Type: Self-Elevating Drilling Unit
• Builder: Marine Development Corporation
• Hull No.: MDC 875523
• Year Built: 1978
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OPERATING CAPABILITIES
• Maximum Water Depth: 300 ft
• Maximum Drilling Depth: 25,000 ft
• Accommodation: 101 persons
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PRINCIPAL DIMENSIONS
• Hull Length: 155 ft
• Hull Breadth: 180 ft
• Hull Depth: 23 ft
• Operating Draft: 14 ft
• Legs: 3 independent legs
• Leg Length: 433 ft
• Leg Spacing (Longitudinal): 134 ft
• Spud Can Diameter: 68 ft
• Cantilever Reach:
• 107 ft either side of centerline
• 52 ft from aft of hull to rotary centerline
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JACKING SYSTEM
• System Type: Rack & pinion
• Manufacturer: BMC
• Speed: 18 ft/min
• Pinions: 15 per leg
DRILLING PACKAGE
• Derrick: Standard offshore cantilever derrick
• Drawworks: USS Oilwell E-3000
• 2 × electric DC motors
• Total power: 3,000 HP
• Rotary Table: National Oilwell #375
• Top Drive: National Supply PS-2
• Traveling Block: Continental Emco RS-80
• Mud Pumps:
• (3) Triplex Oilwell A-1700
• 1,700 HP each
• Cementing: Offshore cementing unit with recirculating mixer and liquid additive system
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WELL CONTROL & SAFETY
• BOP Stack:
• Cameron subsea equipment
• 10,000 psi rated
• Multi-ram configuration
• Diverter: Hydril
• Choke & Kill: Dual choke manifold with steel choke & kill lines
• BOP Handling: Winch & trolley handling system
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CRANES & AVIATION
• Cranes:
• (2) NOV-Dreco DNS, 60-ton pedestal cranes
• Helideck:
• Sikorsky S-61N rated
• Diameter: 21.90 m
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POWER & ELECTRICAL
• Main Engines:
• (3) EMD 12-645-E8 diesel engines
• Installed Power: ~4,950 HP
• Electrical System: SCR controlled, 60 Hz
• Auxiliary / Emergency Power: Detroit Diesel / CAT generator sets
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• Fuel Oil: 2,940 bbl
• Liquid Mud: 2,054 bbl
• Potable Water: 906 bbl
• Bulk Mud / Cement: 7,680 cu ft
• Sack Storage: 5,000 sacks
