Northern Offshore is a global offshore drilling company that has historically operated 
in various markets around the world including the North Sea, West Africa, South Asia, and Southeast Asia. The company’s fleet consists of one floating production vessel and four (4) high specification jack-up rigs.
Rig Name: Energy Embracer
Owner: Blue Ocean Drilling
Manager: Northern Offshore Ltd
Rig Type: Jackup
Sub Type: Independent Leg Cantilever
Jackup Type: Premium
Max Water Depth (ft): 375
Max Drill Depth (ft): 30,000
Dimensions (ft): 226 x 203 x 26
Leg Length (ft): 504.6
Competitive Yes
Current Location:
Country: China (PRC)
Region: East Asia
Rig Construction Details:
Rig Design: Gusto MSC
Rig Model: CJ46-X100-D
Year Built: 2018
Country of Build: China (PRC)
Yard Name: Shanghai Waigaoqiao
Group Yard Name: China State Shipbuilding Corporation (CSSC)
Rig Contract Details:
Operating Status: Ready Stacked
Operator: ----
On January 27, 2020, (Houston, Texas) Northern Offshore announced a contract award from Qatar Petroleum for the GustoMSC CJ46 jack-up unit, “Energy Embracer”. The Energy Embracer was delivered from the Shanghai Waigaoqiao Shipyard in China to Northern Offshore in December 2018 and has since been warm stacked undergoing maintenance and inspections from the shipyard and OEM representatives. The drilling unit is expected to commence work offshore of Qatar in April 2020 for a period of two years plus options.
Chairman and CEO Dr. Yuanhui Sun stated, “We are very pleased to have contracted another high specification newbuild jack-up into the Middle East region. The contract for the Energy Embracer represents our third multi-year contract with Qatar Petroleum for work in the North Field offshore Qatar. This contract award is a significant milestone in the history of Northern Offshore as it successfully positions our fourth drilling unit into the market. These contracts provide Northern Offshore with fourteen rig-years of contract backlog and enable the company to further expand our fleet with additional newbuild jack-up rigs.”
Energy Embracer Jack Up Rig and Equipment Overview
Rig Specifications:
GENERAL:
Rig: Energy Emerger/Energy Embracer
Energy Embracer: IMO 9743019
Flag: Liberia
Owner: Energy Emerger Ltd/Energy Embracer Ltd
Year Built: 2017/2018
Builder: Shanghai Waigaoqiao Shipyard (SWS) Company Limited, China; Design: GustoMSC CJ46-X100-D, self-elevating cantilever jack-up; Classification: ABS ✠ A1 Self Elevating Drilling Unit
Accommodation: 120 beds + 2 beds in sickbay
MACHINERY:
Main Power: 5 x Caterpillar 3516C HD 2150 bhp (1,600 bkW) diesel engines
5 x Hyundai Ideal generator sets, 690V, 60 Hz, 1,534 kW each; 2287 kVA
Power Distribution: ABB variable frequency drive power management system, 690V/480V motor control centers
Emergency Power: Cummins CCFU900-E with marine generator, 1,370 kW; 1125 kVA; 480 VAC
DRILLING EQUIPMENT:
Derrick: NOV 170 ft x 35 ft x 40 ft; 1,500,000 lbs maximum rated static hook load with 14 lines; Crown Block – NOV 750 ton with 6 x 60” diameter cluster sheaves, 2 x 60” diameter fastline sheaves and 2 x 60” diameter deadline sheaves, all sheaves grooved for 1-5/8” wireline
Drawworks: NOV automated ADS-10T, 3,200 hp driven by 3 x DM27A HN A 1,150 hp AC induction motors; NOV water/air cooled multi-plate, fail safe disc brake system
Rotary: NOV RST 49-1/2” hydraulic operated rotary support table with dynamic slip ring, 49-1/2” opening, with up to 15 rpm intermittent rotary speed
Top Drive: NOV TDS-8SA, driven by 1 x GE GEB-20 1,150 hp AC induction motor with 62,500 ft-lbf continuous drilling torque @ 95 rpm, PH-100 pipe handler
Traveling Block: NOV Dreco 760TB-750-8C with 7 x 60” sheaves grooved for 1-5/8” wireline, 750 ton capacity
Pipe Handling: NOV ST-120 Iron Roughneck; PS-30 Power Slips; BX Hydraulic Elevator; NOV PRS-8i “Foxhole” Pipe Racking System with off-line drill pipe/drill collar stand building system; NOV CWS-P Pipehandling Catwalk Shuttle
Cementing: Schlumberger CPS361 15,000 psi WP recirculating cement mixing unit with CBS 355 mixing tank system
Mud Pumps: 3 x NOV 14-P-220, 2,200 hp each; 7,500 psi WP each with
2 x Mattco A7520 7,500 psi WP pulsation dampeners each
MUD SYSTEM:
Return Mud Treatment System: 1 x Derrick Flo-line Primer II unit; 4 x Derrick Triple Hyperpool shale shaker unit with flow control divider; 1 x Derrick 3 - 10” cone in-line Hydrocyclone, 1 x Derrick 20 - 4” cone in-line Desilter; 1 x Derrick Vacu-Flo 1200 degasser; 1 x 48” Brandt mud/gas separator
Mud Mixing System: 2 x 105 ft³ surge tanks, surge tank feeder and cyclone dust collector mounted over 2 x venturi mud mixers with hoppers
1 x NOV Big Bag Unit on main deck feeding mud hopper below deck
Active Mud Tank System: Total volume – 2,643 bbls; consisting of 4 active mud tank compartments – 2,158 bbls; 5 mud processing tanks - 157 bbls
2 x 122 bbl slug tanks; 2 x 32 bbl trip tank; 1 x 20 bbl stripping tank
Reserve Mud Tank System: Total volume – 2,158 bbls; consisting of 4 tank compartments
Other Tank Volumes: Drill Water - 22,325 bbls; Base Oil – 1,255 bbls; Potable Water – 3,675 bbls; Fuel Oil – 3,645 bbls; Completion Brine – 1,255 bbls; Total Pre-load – 70,440 bbls
Bulk Mud/Cement Storage Volumes: Total Volume – 14,800 ft³; consisting of 4 x 1,850 ft³ bulk barite P-tanks – 7,400 ft³ total and 4 x 1,850 ft³ bulk cement P-tanks – 7,400 ft³ total; sack storage – 5,000 sacks
MAIN DIMENSIONS/ DRAFT/DISPLACEMENT:
Length: 214 ft
Breadth: 203.4 ft
Hull Depth: 26.2 ft
Legs: 3 x 503.3 ft with 45.3 ft diameter spud cans; leg below hull - 440 ft
Cantilever: 70 ft lateral; 20 ft transverse each side
Transit Draft: 16.4 ft load line
Transit Displacement: 30,464 kips
OPERATING PARAMETERS:
Max Water Depth: 375 ft
Max Drilling Depth: 30,000 ft
Survival Conditions: Wind - 100 knots; waves - 45 ft; period - 15.0 sec @ 375 ft WD and 15 ft of leg penetration with max elevated weight of 24,230 kips
CAPACITIES:
Variable Load: 7,675 kips drilling (excludes cantilever load)
5,450 kips afloat (excludes cantilever load)
Total Cantilever Variable Load Capacity: 2,268 kips
Drilling Load Capacities: static hook load with top drive: 1,500,000 lbs; rotary: 1,500,000 lbs; rig floor setback: 1,120,000 lbs
BOP & CHOKE MANIFOLD SYSTEMS:
18-3/4” BOP system: 1 x 18-3/4” 10,000 psi NOV Shaffer Spherical BOP
2 x 18-3/4” 15,000 psi NOV Shaffer NXT-M double hydraulic operated ram preventers
Choke and Kill Manifold: NOV Shaffer 3-1/16” 15,000 psi H2S trim with
2 x hydraulic actuated automatic chokes and 2 x manual chokes
Diverter: Vetco Gray KFDJ, 500 psi with 12” Nominal ID port/stbd overboard lines
Control System: NOV Koomey BOP and diverter hydraulic control system consisting of 750 gal accumulator reservoir capacity, 11 station BOP manifold with 20 x 15-gallon 3,000 psi bottles for BOP functions and independent diverter control manifold with 6 x 15-gallon 3,000 psi bottles for all diverter functions;
BOP Handling: 150 mt handling system consisting of 2 x 75 mt air operated chain hoists
TUBULARS:
Drill Pipe: 25,000 ft x 5-7/8”, 23.4 lb/ft, Grade S-135, XT57 conn; 10,000 ft x 3-1/2”, 15.5 lb/ft, Grade S-135, NC38 conn
Hevi-wate Drill Pipe: 30 joints x 5-7/8”; 30 joints x 3-1/2”
Drill Collars: 15 joints x 9-1/2”; 30 joints x 8-1/4”; 30 joints x 6-1/2”; 30 joints x 4-3/4”
ADDITIONAL EQUIPMENT:
Craneage: 3 x Favelle Favco Model 7.5/10K pedestal crane (port side, port aft and starboard) with 135 ft (41.2 mtr) boom, 50 mt capacity (onboard) @ 32.8 ft (10 mtr) radius and 25 mt capacity (offboard) @ 32.8 ft (10 mt) radius with 30 knot wind speed and 1.5 mtr sig. wave height; 1 x knuckle boom crane (cantilever pipe deck), 12 mt capacity (max) and 3.2 mt capacity with gripper head (2-7/8” to 20” pipe sizes)
Jacking System: GustoMSC rack & pinion system with 18 x 896 kips (max) elevating units per leg; jacking speed: 1.5 ft/min (hull lifting), 2.2 ft/min (leg lifting)
Helideck: S-61N/S-92N; steel octagonal shape, 72.8 ft diameter (D-value) CAP 437 compliant
Lifeboats/Life Rafts: 3 x 60 man lifeboats, SOLAS approved; 6 x 20 man life rafts, SOLAS approved
Conductor Pipe Tensioning System: TSC; 225 mt (tension capacity); 4 lift points; 14” (350mm)
Fixture date: 27.01.2020
Name: Energy Embracer
Type: Jackup
Rig manager: Northern Offshore
Operator: Qatar Petroleum
Country: Qatar
Day rate: 80 000
Duration (days): 1 461
Start date: 02.04.2020
End date: 02.04.2024
Comment: ----
