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

This jack-up drilling rig is Self-Elevating Mobile Drilling rigs. The HaiYang 931 is designed to provide first class drilling services in all weather environments. It holds Russia & CCS classification and is fully IMO compliance and certified. COSL has a proven track record in offshore drilling operations and assures its customers that our rigs will be operated according to stringent international and industry standards particularly in regards to Quality and HSE.

COSL 931
Design Criteria
Max/Min Operating Water Depth: 328/67 ft(100/20meters)
Max Rated Drilling Depth: 21,325 ft(6,500meters)
Storage Capacities
Fuel Oil: 546 m3
Lube oil: 20 m3
Drilling Water: 433 m3
Potable Water: 302 m3
Bulk Mud: 335 m3
Bulk Cement: 128 m3
Heavy Mud Accepted: 12m3
Total of Active Mud and Reserve Mud: 323 m3
Sack Storage: 2000(sacks)
Main Dimensions
Length Overall£º 341.2¡¯ (104 meters)
Breadth Overall: 223.1¡¯ (68 meters)
Length of Hull: 288.71' (88 meters)
Breadth of Hull: 216.5' (66.0 meters)
Depth of Hull: 31.8' (9.7 meters)
Overall Length of Leg: 479 ft including Spud Cans
Number of Legs: 3
Type of Legs: Independent/Triangular
Heli-Deck Diameter: 88.5'x 88.5'
Max. Cantilever Combined Load: 2,600 kips at 75ft/0ft
1,109 kips at 75ft/15ft
Living quarters: 108 persons per UK HSE
Maximum Gross Variable Load
Transit VL: 1320t
Drilling VL: 2520t
Survival VL: 1930t
Jacking VL: 1320t
Power Equipment
Main Diesel: Caterpillar D399 x 6
Diesel Engines: 660KW x 6, 1000 rpm
Main Generators: 660KVAx6, 50Hz,0.8pf
Drilling Equipment
Draw works: National 1625-DE
Derrick: Uralmash
Traveling Block: Uralmash / §µ§´§¢§¡ - 6 - 400
Crown Block: URALMASH §µ§¬§¢§¡ 7-500
Top Driver: Varco IDS-1
Rotary Table: National D-495
BOP Equipment
BOP Stack: One Set Hua Bei 13-5/8" 15K
One Set Hua Bei 21-1/4¡± 2K BOP Stack
BOP Control System: Koomey / TA 40380-3S
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 1/2
Accommodations:  
Number of single rooms:
4
Number of double rooms:
50
Toilets: 20
Showers: 64
Galley: 2
Recreation Room: 1
Gym: 0
Changing Room: 1
Deck Crane
Crane: Russia/Plant:§á/§ñ §¥- 3780
Location: Port/Stb
Boom Length: 30m
Block capacities and hoisting speeds:  
Load/Radius/Speed(min.radius): 40/10-12m /
Load/Radius/Speed(max.radius): 10/30m
Jacking Systems and Rack chock system
Make/type: Finland, Rauma Deckmashin / crawling monkey type
No. of jacks or pinions: 36 units
Maximum normal jacking capacity: 12000 t
Maximum preload jacking capacity: 12000 t
Jacking speed: 0.33 m/min
Rack chocks available: none
 
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