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375ft CJ46 Jack-up Drilling Rig
"NAGA 6","NAGA 7"

Owner:

Tianjin Haiheng Ship Building & Offshore Engineering Serice Co., Ltd.

Builder:

China Merchants Heavy Industry (Shenzhen) Co., Ltd.

Class:

ABS

Designer:

GustoMSC B.V. (Series:CJ46-×100-D)

Delivered:

"NAGA6":Sep.2014
"NAGA7":Jan.2015

Function:

For oil & Gas Exploration, Drilling Operatiion, the Max Drilling Depth Up to 9,144m.

Main Particulars

 Hull

Overall length

65.25m

Overall breadth

62m

Depth hull

7.75-8m

Design draft

4.5 m

Leg / Spudcan

Number of legs

3

Type of  leg

Triangular open truss, x-brace structure

Leg chord center to center

10m

Leg length (include spudcan)

153.4m

Aft leg centers

46m                            

Centerline aft legs to forward leg

40m                            

Max. spudcan reation force

Approx. 7,900t

Spudcan approx  area

150㎡                    

Jacking System

Jacking unit

54 unit pinions

Normal jacking capacity

215t/pinion

Jacking speed

0.45m/min

Driven type

Variable speed

Cantilever

Type of cantilever

X-Y skidding

Cantilever length

45.7m

Cantilever envelope

70 × 20 ft

Max drilling depth

30,000 ft

Total power

8,550kW

Main generator set

5 × 1,530kW

Emergency generator set

1 × 900kW

Drilling System

Mud pump

3 × 2,200 hp . 7,500 psi

Rotary table

49½’’ , 45,000 lbs/ft

Drawworks

3,000 hp

Derrick

35’ × 40’ × 170’ . 1,500 kips

BOP

18 ¾’’ , 15,000 psi

Max variable load at drilling operation

3,500 mt

Deck Winch

Quantity

4

Winch

35t

Fixation System

Quantity

18 sets

Capacity

47MN in compression/one leg chord

34MN in tension/one leg chord

Driven type

Electrical

Skidding System

Quantity

4

Type

X-Y cantilever skidding type

Skidding speed

10m/hour

Deck Crane

 

Quantity

3

Capacity

50t

Helideck

Helicopter type

S92

Helideck diameter

Φ22.2m

Complement

120

Classification

A1 Self-Elevating Drilling Unit
CDS