Fleet Specifications

Dada Gorgud

1,557 Foot Semi submersible Drilling Vessel

General Description

Design	Friede & Goldman Pacesetter
Dimensions	216 ft. x 202 ft.
Normal operating draft	45 ft.
Towing Draft	19 ft.
Maximum variable load (drilling)	5,280 kips
Quarters capacity	120 persons
Operating water depth (as outfitted)	1,557 ft.
Operating water depth (design)	1,557 ft.

Drilling Equipment

Derrick	160 ft. x 40 ft. Pyramid, with a static hook load capacity of 1,023,000 lbs. with 12 lines (1-1/2 in. drilling line).
Drawworks	National 1625, powered by 2 Hi-Torque GE 752 motors complete with Baylor 7838 auxiliary brake.
Rotary table	National C-495, 800 short tons, independent drive, GE 752 through 2¬speed gear box.
Top Drive	MH DDM-650L-DC, 650 ton, with GE 752 Hi-Torque DC motor. Rated at 50,400 ft./lbs. @ 120 rpm in low gear - 17,687 ft./lbs. @ 237 rpm in high gear. Maritime Hydraulics Pipehandler.
Pipe handling	BJ type V-3A racking system comprising of upper and intermediate racking arms with lower arm manipulator.
Motion compensator	Shaffer 400k – 18 ft. stroke
Mud Pumps	Three National 12-P-160, 1,600 hp, driven by 2 each GE-752 motors.
Solids Control	Four Varco/Thule VSM 300 linear shakers with integral scalpers. Two Derrick Flo-Line model 200-28/258 gumbo shaker.

Storage Capacities

Liquid Mud	2,400 bbls. including process pits
Base oil	2,000 bbls.
Brine	2,000 bbls.
Bulk material	10,260 cu. ft. in 6 silos

Power Equipment

DC	Six OMC SCR bays, each rated at 1,200 KW.
AC	Four Wartsila 12 V 22B each developing 2183hp @ 1,000 rpm driving one Stromberg HSPTL 11/856 B16, 1400kw with 600volts.

Subsea Equipment

Riser	1,575 ft. of Vetco MR6C, 21”, 5/8” wall thickness riser.
Tensioners	8 x Shaffer, 80 kip, riser tensioner with 50 ft. stroke. Six Shaffer guide/pod line tensioners, 16 kip by 50 ft. stroke.

BOP Equipment

Diverter System	Regan KFDS, 49.5” with two 14” discharge lines & single remotely operated deflector valve.
18-3/4 in. System	Two Shaffer 5M SXF annular preventers, two Shaffer 10M SL double ram preveters with Ultralock II
Cranes	Two National OS-435 and one National OS-105

Mooring System

Chain	8 x 1,050 mtrs of 2 ¾ “ ORQ
Anchors	8 x 18,000 kg Offdrill 2 anchors
Winches	8 x National 2-521-E winches, capable of 261 tons max pull.

 

Istiglal

Semi submersible Drilling Vessel

General Description  
 

Design	Pacesetter Class, Shelf Series Design
Dimensions	301 ft. x 210 ft.
Normal operating draft	47 ft.
Towing Draft	19 ft.
Maximum variable load (drilling)	7,500 kips
Quarters capacity	120 persons
Operating water depth (as outfitted)	1,558 ft.
Operating water depth (design)	2,297 ft.

Drilling Equipment

Derrick	177 ft. x 40 ft., with static hook load capacity of 1,500,000 lbs. 26,600 ft. Drill Pipe capacity
Drawworks	Wirth GH2500, directly driven by two GE 752 Hi-Torque motors, 2500 horsepower, regenerative braking system & Baylor 7040 electric brake
Rotary table	Wirth RTSS49.5, 49.5 in. with hydraulic drive. Capable of Max. continuos 25,832 ft/lb torque @ 20 rpm , Static load 800,000
Top Drive	MH DDM-650L-DC, 650 ton, with GE 752 Hi-Torque DC motor. Rated at 50,400 ft./lbs. @ 120 rpm in low gear -17,687 ft./lbs. @ 237 rpm in high gear. Maritime Hydraulics Pipehandler
Pipe handling	MH 1862-10 Upper & Lower Racking Arms & Fingerboard
Motion compensator	MH 270 - 25, rated at 600,000 lbs.
Mud Pumps	3x Continental Emsco FC1600, 1600 hp.
Solids Control	Two Derrick LX-50 gumbo shakers with four Derrick Flo-Line 2000 linear shale shakers, Derrick Cyclone 16 Desilter

Storage Capacities

Liquid Mud	2,575 bbl. (above deck tanks)
Base oil	2,645 bbl.
Brine or Mud	1,794 bbl.
Bulk Mud	170 cubic meters
Bulk Cement	146 cubic meters

Power Equipment

DC	Ten ABB SCRs, rated at 1125 kw each
AC	Four Wartsila 12CV-W200 diesel engines rated at 2400 kw per, each driving Leroy Somer 2400 kw generators

Subsea Equipment

Riser	1600 ft. Vetco MR6D 21 in. OD. 750 ft. equipped with Emerson-Cuming Ecco-Float Buoyancy Modules
Tensioners	Eight Maritime Hydraulics MH 3459-04 riser tensioners with 50 ft. stroke - rated at 120,000 lbs. each, four 16,000 lb. guideline tensioners with 40 ft. stroke

BOP Equipment

Diverter System	Hydril FS 21-500, 49.5 in. with two 16 in. discharge lines & single remotely operated deflector valve
18-3/4 in. System	Two Hydril GX 10,000 psi Annular Preventers. One each Hydril Dual Compact & Dual Extended 15,000 psi Double Ram Preventers, 5,000 psi accumulator system
Cranes	Three Dreco 72DNS-120, all with 120 ft. booms, Dynamically rated at 45 metric tons for the main block and 10.5 for the whip line
Mooring System	Four Skagit Smatco double winches, Traction winch mounted at deck level – spooling winches in Lower Hulls, capable of 317 metric tons pull, eight point mooring with 15 metric ton Stevpris BV-15 Mark V anchors on 15,000 ft. of 88mm wire