Drilling Services
Key specifications of our jackup rigs: To Drilling Services

BoHai NO.7 jack-up platform which was built in 1983 and with possess CCS and ISO9002 certificates. Since 1994, bohai NO. 7 rig unit has been cooperating with a few of foreign oil company. Such as APAGI, KMC, PHILIPS.and retain high praise .The Bohai No.7 Drilling Unit is hydraulic self-elevating drilling unit which has China ¡ïCSA5/5 self-elevating drilling unit, its main working ocean has 8.5m¡«40m water depth, and its drilling depth is 6000m.

BOHAI ¢÷
Design Criteria
Max/Min Operating Water Depth: 40M/8.5M
Max Rated Drilling Depth: 6000M
Storage Capacities
Fuel Oil: 365 m3
Lube oil: 44.68 m3
Drilling Water: 170.2 m3
Potable Water: 391 m3
Bulk Mud: 240 m3
Bulk Cement: 90 m3
Heavy Mud Accepted: 90 m3
Total of Active Mud and Reserve Mud: 315 m3
Sack Storage: 3000(sacks)
Main Dimensions
Length Overall£º 76.0 meters
Breadth Overall: 46.6.meters
Length of Hull: 57.6 meters
Breadth of Hull: 34 meters
Depth of Hull: 5.5 meters
Overall Length of Leg: 79.2 M including Spud Cans
Number of Legs: 4
Type of Legs: column
Heli-Deck Diameter: Independent/circular
Living quarters: 98 persons per UK HSE
Maximum Gross Variable Load
Transit VL: 790t
Drilling VL: 1376.89t
Survival VL: 790t
Jacking VL: 790t
Power Equipment
Main Diesel: DEUTZ TBD620V12
Diesel Engines: 1042KWX1500rpm rpm
Main Generators: IFC 2563-4 SB92X1250KW 600V/50Hz/1202A
SCR Drilling System: 5EA, GE Co. 750V 1800A, now set 1250A
Drilling Equipment
Draw works: EMSCO C-II
Derrick: EMSCO 20RD
Traveling Block: EMSCO RA 52-7
Crown Block: EMSCO RA 52-6H-5500
Top Driver: TDS11SA
Rotary Table: T-3750
BOP Equipment
BOP Stack: One Set Varco Shalfer 13-5/8" 10K
BOP Control System: INGERSOLL-RAND MATERIAL HANDLINGBHS40MC3-30-30-4
Accommodation
Company Representative¡¯s Office: 1
Contractor¡¯s Representative¡¯s Office: 1
Control Room: 1
Radio Room: 1
Helicopter Assembly Room: 1
Hospital / No of Beds 1/1
Accommodations:  
Number of single rooms:
3
Number of double rooms:
2
Toilets: 7
Showers: 4
Galley: 1
Recreation Room: 1
Gym: 0
Changing Room: 1
Deck Crane
Crane: Two Seatrax 4224HD
Location: Port/Stb
Boom Length: 90 ft
Block capacities and hoisting speeds:  
Load/Radius/Speed (min. radius): 35/20 /1.0 ft/sec
Load/Radius/Speed (max.radius): 11.7/94/1.5 ft/sec
Jacking Systems and Rack chock system
Make/type: Dalian shipyard
No. of jacks: 4 units
Maximum normal jacking capacity: 1600 t/units
Maximum preload jacking capacity: 2100 t/units
Jacking speed: 0.8 ft/min
Rack chocks available: Yes
 
©Copyright 2006-2007,China Oilfield Services Limited. Legal Disclaimer