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| Baker Marine Pacific Class 375 Jack-up Rig |
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Conceptualised in 1998 by Baker Marine, a wholly-owned subsidiary of PPL Shipyard, it is designed to operate in non harsh environmental conditions and up to 375 ft water depth, plus incorporating large drilling and variable loads. |
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Developed by our engineers with practical feedbacks from clients |
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Active marketing launched in 2002/2003 |
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1st unit awarded in January 2004 |
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16 units contracted by November 2006 |
| Merits of Pacific Class 375 Design |
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Superior design environmental conditions and drilling loads as compared to competing designs |
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Large variable loads |
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Large liquid mud and bulk mud capacity |
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Increased deck space at Main Deck level |
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Increased deck space at Intermediate Deck level |
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Drill centre extended to 70 ft aft |
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Improved jacking system capable of jacking with 100% preload |
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Space for future installation of 4th mud pump and 6th generating set |
| Principal Particulars |
| Hull length (m) |
72.1 |
| Hull breath (m) |
68.4 |
| Hull depth (m) |
8.5 |
| Leg length including spud can (m) |
154.35 |
| Leg centres Fwd/Aft (m) |
44.3 |
| Leg centre PS/SB (m) |
47.3 |
| Leg chord distant (m) |
13.25 |
| Spud can dimension across flat (m) |
16.9 |
| Accommodation (man) |
115 |
| Drill centre maximum aft (m) |
21.34 |
| Drilling depth (ft) |
30,000 |
| Helideck comply to CAP 437 |
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| Design Parameters |
Normal Drilling Conditions |
Storm Conditions |
| Water Depth (m) |
114.3 |
114.3 |
| Max wave height (m) |
13.7 |
13.7 |
| Wave period (sec) |
13.5 |
15.0 |
| Surface current (m/sec) |
0.64 |
0.64 |
| Wind speed (m/sec) |
36.0 |
51.4 |
| Air gap (m) |
15.2 |
15.2 |
| Leg penetration (m) |
3.05 |
3.05 |
| Variable load (mt) |
2721 |
2721 |
| Hook load (mt) |
680 |
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| Conduction load (mt) |
- |
227 |
| Max combined variable load (mt) |
3401 |
2948 |
| Tank Capacity |
Barrel |
Bulk Capacity |
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| Pre load |
58500 |
Bulk cement |
165 m³ |
| Fuel oil |
3900 |
Bulk mud |
165 m³ |
| Potable water |
3600 |
Sack storage |
5000 |
| Drill water |
4850 |
Mud surge tank |
2 x 2 m³ |
| Active & Reserve mud pit |
4150 |
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| Base oil |
1200 |
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| Brine |
1200 |
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| BMC Jacking System |
| Number of pinions |
72 |
| Number of Jacking motors |
36 |
| Normal jacking load |
43,560 kips |
| Preload jacking load |
58,608 kips |
| Jacking speed |
0.36 m/sec |
| Load monitoring |
| Rack Phase Differential monitoring |
| Local and remote control |
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