Company founded 1975 US-based machinery business experienced in worldwide sales.

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Daewoo, Semi-Submersible Drilling Rig, 1984, 1500 ft Operational Depth, 25000 ft Max Drilling Depth, 4000 Tons Load Capacity

Description

  1. Overview
    1. Type: Twin lower hull, column stabilized, semi-submersible drilling rig
    2. Remodeling year: 2014
    3. Overall dimension (L x W x H): 89600 x 69300 x 94200 mm
    4. Lightship: 14047 metric tons
    5. Deadweight tonnage: 13123 metric tons
    6. Load capacity: 4000 tons
    7. Operational depth: 150-1500 feet (45-450 meters)
    8. Max. drilling depth: 25000 feet (7500 meters)
    9. Max. wind speed: 110 knots (200 kilometers per hour)
    10. Max. wave height: 100 feet (30 meters)
    11. Number of beds: 112
    12. Classification: ABS, KR
  2. Design Criteria
    1. Max. operating water depth: 456 m
    2. Wind velocity (emergency): 110 knots
    3. Wave height/period (emergency): 30.4 m / 15 sec
    4. Tidal current: 1.5 knots
    5. Lowest operating temperature: -20 degrees
    6. Helideck: 30000 x 32500 mm, load: 24 ton, landing and take-off sector: 220 degrees
    7. Moon pool (L x W): 23400 x 6500 mm
  3. Capacities
    1. Variable deck load (drilling/transit/survival): 3067 / 1772 / 3200 mt
    2. Liquid mud: 2371 bbls, active pit no. 4 (405 bbls), reserve pit no. 1a (417 bbls), no. 1b (372 bbls), no. 2 (353 bbls), no. 3 (336 bbls), slugging pit (81 bbls), mud processing tank (407 bbls)
    3. Sack materials: 298 mt or 437 cubic meters
    4. Bulk mud: 320 cubic meters in 7 column p-tanks
    5. Bulk cement: 173 cubic meters in column p-tanks
    6. Potable water: 299 cubic meters
    7. Drilling water: 2549 cubic meters
    8. Fuel: 1339 cubic meters
    9. Accommodation: 112
  4. Drilling Equipment
    1. Derrick: Branham 160 ft high, static hook load of 1000000 lbs with 12 lines to the block; dynamic height 48 m, base 12 x 12 m, top 5.4 x 7.2 m, nominal capacity of 1333 kips, max. rated hook load 1000 kips, max. set back capacity 600 kips
    2. Top drive system: Maritime Hydraulics model DDM-650-HY, high torque, load capacity 650 tons, max. continuous torque 40500 lbs-ft, max. continuous speed 265 rpm, max. torque 120 rpm
    3. Drawworks: Oilwell E-3000 of 1-1/2 inch drill line, Elmagco 7838 brake; driven by two GE 752 motors (2000 hp), c/w Elmagco model 7820
    4. Rotary table: 1 MH Wirth 49-1/2 inch rotary table, additionally available; model RTSS 49.5 inch
    5. Pipe racking system: MH130, three arm automatic pipe racking system; Maritime Hydraulics, 3-arm pipe racking system powered by hydraulic pump model 1063
    6. Iron roughneck: Hydraulic roughneck type MH 1988, with max. make up torque 13620 kg-m, max. break out 16912 kg-m
    7. Mud pumps: 3 Oilwell A-1700PT triplex pumps, 1700 hp, 5000 psi with liner size 6.5 inches, 6 inches, 5.5 inches
    8. Shale shakers: 4 balanced elliptical motion; 4 sets cascade type shale shakers MI Swaco balanced elliptical motion type model BEM-650
    9. Motion compensator: Western Gear, model HC-650-20-25, static hook load 1630000 lbs at max., total stroke 25 ft; dynamic string load 650 kips, static hook load 1630 kips, stroke 7.5 m, working pressure 2400 psi
    10. Crown block: 650 ton, five 60 inch diameter
    11. Desander: Derrick degasser Vacu-Flo 1000 (vacuum type) 1200 gpm, complete with 5 hp motor
    12. Mud gas separator: Gas throughput 38 cubic meters/min
    13. Mud cleaner: Brandt King Cobra, with 24 ea, 4 inch cones, combo type, eight 6 inch x 14 inch, 100 hp, 36 bbl/min
    14. Choke and kill manifold: N.I. Shaffer 10000 psi up stream, 5000 psi down stream
  5. Subsea Equipment
    1. BOP stack: 18-3/4 inch x 10000 psi BOP with Vetco H-4 connector, consisting of two N.L. Shaffer "SL" double rams (1 x 3.5-5 inch multi ram) and one 5000 psi spherical and total six 3-1/16 x 10000 psi type "HB" gate valve
    2. LMRP: 18-3/4 inch x 10000 psi with H-4 connector, N.L. Shaffer 5000 psi spherical and Vetco 18-3/4 inch Uniflex joint 5000 psi, API 6 BX flange down and no. 18 clamp hub up
    3. BOP control system: Koomey Inc model SB 320-11SB with accumulator 80 bti (11 gal/btl)
    4. Diverter: Hughes Offshore (Regan type) model KDSF, nom 24 inch ID for 49.5 inch rotary
    5. Riser joints: 19 jts of 15 m Hughes Offshore type FD-8
    6. Telescopic joints: Two joint of Hughes Offshore type FD-8 nom. 6.3 x 6.5 m inner barrel 21 inch FD-8 pin, outer barrel FD-8 box, 10000 psi choke and kill lines, H2S trim
  6. Power and Propulsion
    1. Prime movers: 4 Wartsila diesel engines, each 2160 hp with 1590 kW, 600 V, 60 Hz, A.C generator; AVK DIDB 1400 kW x 4 generator
    2. Emergency generator: 1 Detroit 16V-92T, diesel engine driven 600 kW; Detroit diesel engine 750 kW, Stanford 600 kW generator
    3. SCR system: IPS (Integrated Power Systems) model 2200M
  7. Mooring and Positioning
    1. Mooring system: 8 x 7000 ft of 3-1/2 inch wire rope and 275 ft of 4-1/2 inch chain combination mooring line
    2. Position indicating system: Sonardyne
    3. Mooring equipment: Winch, fairlead, tension sheave and deck sheave, anchors, anchor chains, anchor wire, buoys
  8. Deck and Handling Equipment
    1. Cranes: 1 National (80 tons), 2 Favco (40 tons); 2x (port and starboard side) Favco, 39 meter, 7.5/10k, hydraulic pedestal cranes with Caterpillar 3408 DITA diesel engine with 80 ton
    2. Heliport: Dimensions 98.4 x 102 ft, load capacity 50000 lbs
  9. Safety and Life Support
    1. Oily water separator: 10 m2/h, operating pressure 1.5-3 kg/cm2, 1500 x 2800 x 2300 mm; 2 sets separator pump, 10 m3/h, 3 m head, 1200 rpm
    2. Sewage treatment plant: 2 sets of sewage treatment plant suitable for a complement of 164 men
    3. Dust collector: 2 set of WM-DC-BF-25
    4. Helicopter refueling system
  10. Communication and Navigation
    1. Communication system: 1 JRC Inmarsat, JUE-45AMII; 1 GMDSS model JRC NCE-2211; 1 MVSAT antenna