general specification introduction 1.introduction 1.1general service *the “300ft s.e.u.” is a...

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GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing rig for offshore oilfield production; *The unit configuration and design has also considered for wind turbine installation and repairing; *The deck area of the unit is about 970 m² and can be applied as a living support vessel with the living module;

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Page 1: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

GENERAL SPECIFICATION INTRODUCTION

1.INTRODUCTION

1.1General Service*The “300ft S.E.U.” is a jack-up self-elevation unit

designed as a drilling and repairing rig for offshore oilfield production;

*The unit configuration and design has also considered for wind turbine installation and repairing;

*The deck area of the unit is about 970 m² and can be applied as a living support vessel with the living module;

Page 2: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

GENERAL SPECIFICATION INTRODUCTION

*The unit contain Four Main generators can supply 4800Kw power;

*Two cranes be installed around the forward two legs and have max 190t lifting capacity for offshore service.

Page 3: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

GENERAL SPECIFICATION INTRODUCTION

1.2 Rules, Regulations and Convention1.2.1 The construction of the unit shall satisfy

the following existing applicable rules,regulation and conventions;

The applicable rules and regulations issued by ABS

Guide for building and Classing Mobile offshore Units(2008)

Rules for Building and Classing Mobile Offshore Drilling Units(2008)

Steel Vessel Rules 2009

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GENERAL SPECIFICATION INTRODUCTION

1.2.2 The applicable international rules and regulations:

SOLAS(Consolidated edition 2004)and amendment

IMO Code for the Construction and Equipment of Mobile Offshore Drilling Units(bound edition 2001)

IMO International Load Lines Convention and Protocol for International Load line Convention(1988)

IMO Convention on the International Regulations for Preventing Collisions at Sea 1972 and Amendment

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GENERAL SPECIFICATION INTRODUCTION

IMO International Convention for the Prevention of Pollution from Ship (MARPOL 73/78)(Consolidated Edition 2006) and Annex

International Convention on Control of Harmful Anti-fouling System on Ships

International Convention on Tonnage Measruement of Ships 1969

Page 6: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATION

2. GENERAL DESCRIPTION AND SPECIFICATION2.1 General Description2.1.1 The unit principally length overall is 49.20m

(161.4ft) long, 42.67 m (140ft) wide, and 6.80 (22.3ft) deep at the hull side (amidships). The unit service depth 5-45m (16.4-147.6ft) at the air gao 20m (25.6ft), and it also can service at depth of 5-50m(16.4-164ft) at air gap 15m (49.2ft). Three legs position as an approximately equilateral triangle. The two legs forword are positioned symmetrically. The aft leg is positioned on centerline.The spud cans 11.7m × 11.7m × 1.5m. The total leg length, including the spud can, is approximately 91.44(300ft).

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GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATION

2.1.2 The accommodation area provides space for catering, hospital, offices, meeting room and recreational facilities in addition to accommodations for a crew complement of up to 47 persons, as shown in the general arrangement plans.

2.1.3 The unit is to be outfitted with a system of two diesel driven fixable pitch propellers one bow tunnel thruster and one stern tunnel thruster to allow self propulsion for field moves and positioning without outside assistance.

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GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATION

2.1.4 The unit will further be outfitted with a ballast system for ballasting / de-ballasting of ballast tanks in order to optimize the pre-loading of the unit if required or where pre-diving is not feasible.

2.1.5 The main particulars of the unit are as follow:

Page 9: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATIONHull Particulars:

*length overall 49.20m (161.4ft)*length molded 46.80m (153.5ft)*Breath molded 42.67m(140ft)*Depth molded 6.80m (22.3ft)*Design draught 3.60m(11.8ft)*Design speed 6.0kn*Max.Jacking variable load 1200t*Service depth 5-50m(16.4-164ft)*Air gap 20m(65.6ft)*Deck stress 4.8 t/m²*Main deck area >970 m²

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GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATIONLeg,Spud can and jacking system particulars*Leg configuration columnar with spline*Leg diameter 2.8 m(9.2ft)*Leg length(including spud can) 91.44m(300ft)*Spud can dimension 11.7m × 11.7m(38.4ft ×

38.4ft)*Jacking system hydraulic*Jacking speed 1.22m/min(4ft/min)

Accommodation (total 47 persons)*Single cabins ×3 =3p*2-men cabins × 2=4p*4-men cabins × 10=40p

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GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATION

2.2 Performance Critera and Design Conditions

2.2.1 Design Operating ConditionsWoking state

Depth(m)

Wave heigh(m)

Peiod(s)

Velocity(m/s)

At surface(m/s)

At mud line(m/s)

AirGap(m)

Working1

50 6.5 6.5 25.7 1.03 0 16

Workin2

45 6.5 6.5 36 1.03 0 20

Storm survival

15 9.3 9.8 51.5 1.8 1.03 12

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GENERAL SPECIFICATION GENERAL DESCRIPTION AND SPECIFICATION2.2.2 Environmental Criteria Atmosphere temperature -10°C Water temperature -2° C2.2.3 Tank Capacities The detailed tank sizes are to be defined by the tank

plan drawing.Tank Capacity m3 Tank Capacity m3

Ballast tank 2520.14 Seawater storage tank 132.9

Fuel oil tank 318.8 Lube oil tank 4.4

Fuel oil day tank 64.83 Waste Oil TK 10.9

Fresh water tank 339.90 Bilge water

tanks 33.4

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GENERAL SPECIFICATION LEG,SPUDCAN AND JACKING SYSTEM

3.LEG,SPUDCAN AND JACKING SYSTEMThe leg is a cylindrical type which outside diameter is

2800mm.The leg length including apud can is 91.44m(300ft).The bottom of spud can is 11.7m × 11.7m rectangle. Each leg is connected to the hull by means of jacking gear units. The unit contains hydraulic motor, jacking pinion. The jacking units can jack/lower the leg or main hull raising to satisfy the operation requirement.

The jacking system consist of electric control and hydraulic drive, each leg equip with 14 sets jacking hydraulic motor, HPU, planetary gear box, jack pinion, brake, inclinometer etc.

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GENERAL SPECIFICATION LEG,SPUDCAN AND JACKING SYSTEM Main parameters: Normal jacking capacity: 1400 T per leg Preload Holding capacity: 1960 T per leg Max. Severe Storm holding capacity: 2800 T per legMax. Jacking speed: 4FT/min with full load HPU power source: 600V, 50Hz, 3 phase HPU Electric Motor Rated Power: 300KW per motor 

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GENERAL SPECIFICATION UNIT MAIN EQUIPMENT4.UNIT MAIN EQUIPMENT4.1 Main generatorThe unit is equipped with 4 engine generatorsRated power: 1200kw/eachOutput voltage: 600VRated Frequency: 50HzRated speed: 1800Rpm4.2 Emergency generatorThe unit is equipped with 1 generatorsRated power:400kwOutput voltage:400vRated Frequency:50HzRated speed:1800Rpm

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GENERAL SPECIFICATION UNIT MAIN EQUIPMENT

4.3 Leg ringer CraneTwo leg ringer cranes shall be installed

around the forward two legs as one each.Quantiy: 2 setsModel: Techcrane 190t-10m(8t-43m)Drive type: diesel engine and hydraulic

systemJib length:43mMaximum working load:190T

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GENERAL SPECIFICATION UNIT MAIN EQUIPMENT

4.4 Propulsion systemMain thruster Quantity: 2 sets Drive type: main engine-gear-propeller Input power: 1370kw Input speed: 0~ 1500Rpm Speed ratio: 5.9:1 Propeller diameter: 2100mm Propeller type: fixed pitch Blades quantity: 4

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GENERAL SPECIFICATION UNIT MAIN EQUIPMENT Bow thruster: Input power: 450kw Input speed: 1800Rpm Propeller diameter: 1300mm Propeller type: Variable pitch Blades quantity: 4 Motor: 600v/3ph/50Hz   Stern thruster Input power: 450kw Input speed: 1800Rpm Propeller diameter: 1300mm Propeller type: Variable pitch Blades quantity: 4 Motor: 600v/3ph/50Hz

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GENERAL SPECIFICATION UNIT MAIN EQUIPMENT4.5 Submersible pumpThe unit is equipped with two submersible pumps

and pump towers. After the unit is elevated, the pump tower is lowered into the sea by the tower jacking units to supply the sea water to fire system, ballast system and cooling system. The tower jacking unit is consisting of two electric drive jacking units. There are two submersible pumps in the pump tower. The pump parameters are as below:

Flow capacity: 250m³/h Water head: 0.67Mpa Power: 75kw

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General arrangement

Page 21: GENERAL SPECIFICATION INTRODUCTION 1.INTRODUCTION 1.1General Service *The “300ft S.E.U.” is a jack-up self-elevation unit designed as a drilling and repairing

General arrangement

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General arrangement

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Postscript-3D

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