Offshore Platform Installation.pdf

8/11/2019 Offshore Platform Installation.pdf

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EngineeringEngineeringProcurementProcurement

ConstructionConstructionInstallationInstallation

& Commissioning& CommissioningPresented byPresented by

Mr. Therasap RattanapatMr. Therasap Rattanapat

OVERVIEW OF OFFSHORE

PLATFORM


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World Primary Energy DemandWorld Primary Energy Demand


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Concession in ThailandConcession in Thailand-Bongkot Field Development (PTTEP)

-Arthit Field Development (PTTEP)

-Erawan Group

-Nang Nuan-Tantawan

-etc


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Joint Development Area (JDA)Joint Development Area (JDA)Thailand / MalaysiaThailand / Malaysia

-Carigali - Triton Company Sdn.Bhd (CTOC)

-Carigali PTTEPI Operating Company Sdn.Bhd (CPOC)

-etc


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PTT EXPLORATION AND PRODUCTIONPTT EXPLORATION AND PRODUCTION


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Type of Offshore StructureType of Offshore Structure

-Fixed Platform Gravity Base Platform, Jacket Type Platform

-Compliant Tower Compliant Piled Tower, Guyed Tower

-Tension Leg Platform

-Floating Platform Semi-Submersible, Extendable Draft Platform, FSO, FPSO

-Spar


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Drilling RigDrilling Rig

JackJack--UpUp

Tender RigTender Rig


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Offshore Platform in ThailandOffshore Platform in Thailand

Fixed Platform, Jacket TypeFixed Platform, Jacket Type

More economicalMore economical

Rich gas reserveRich gas reserve-- lessless

storage requirementstorage requirement

Expected long field lifeExpected long field lifeeasyeasy

expansionexpansion

Suitable for shallow waterSuitable for shallow water

(The water Depth In Gulf of(The water Depth In Gulf of

Thailand is 80m Approx.)Thailand is 80m Approx.)


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Field Development OrganizationField Development Organization

Field

Development

Exploration

Drilling

Project

Development Operation

Financing and

Accounting

Legal and

Contracting

HSESchedule and

Planning

Major

Modification

Conceptual

Design

Detailed

Design Procurement Fabrication

Abandonment

Load-out,

Transportation,Installation

Hook-up &

Commissioning


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E : EngineeringE : EngineeringEngineering DesignEngineering Design

Feasibility StudyFeasibility Study Conceptual DesignConceptual Design

FEED ( Front End Engineering Design)FEED ( Front End Engineering Design)

Detail EngineeringDetail Engineering

HAZOPHAZOP ENGINEERING

Process Structure Piping InstrumentMechanical Electrical


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Field Development PlanField Development Plan

Central Processing ComplexCentral Processing Complex CPPCPP

QP, bridge connected to the CPPQP, bridge connected to the CPP

WP, bridge connected to the CPPWP, bridge connected to the CPP

FP/T, bridge connected to the CPPFP/T, bridge connected to the CPP

Five remote WellheadsFive remote Wellheads

Gas gathering pipelines connecting the remote wellheadGas gathering pipelines connecting the remote wellheadplatformplatform

A gas pipeline to export the gasA gas pipeline to export the gas

A condensate line to export to Silver FSOA condensate line to export to Silver FSO

Facilities for the first stage of the development


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Living QuarterPlatform (LP)

Processing Platform(PP)

Low-Pressure Flare (LP)

High-Pressure Flare (HP)

Riser Platform(RP)

Wellhead Platform

(WP)


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Design conditionDesign condition

ReservoirsReservoirs Characteristic of waveCharacteristic of wave

Direction of windDirection of wind

100 years storm100 years storm 30 years design life.30 years design life.

80 meters water depth80 meters water depth

No seismic.No seismic.


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CPP Facilities DesignCPP Facilities DesignOverall Processing facil it iesOverall Processing facil it ies

Receiving facilitiesReceiving facilities

Mercury removal facilitiesMercury removal facilities

Gas processing facilitiesGas processing facilities

Condensate processingCondensate processing

facilitiesfacilities

Produced water treatmentProduced water treatment

and pumping facilitiesand pumping facilities


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CPP Facilities DesignCPP Facilities DesignTopsides LayoutTopsides Layout

All high pressure gas handling equipment should be located on eiAll high pressure gas handling equipment should be located on eithertherthe top or main deck and preferably be located at the west end othe top or main deck and preferably be located at the west end of thef theplatformplatform

All major rotating equipment including gas turbine driven ProcesAll major rotating equipment including gas turbine driven ProcesssCompressors and Main Power Generation Units shall be located onCompressors and Main Power Generation Units shall be located on thethe

top decktop deck Two cranes shall be used, one probably located on the west sideTwo cranes shall be used, one probably located on the west side of theof the

platform and the other crane on the opposite side (platform and the other crane on the opposite side (i.ei.e east side) of theeast side) of theplatformplatform

Boat landing facilities are not required on the CPP, only on theBoat landing facilities are not required on the CPP, only on the LQ andLQ and

the DWPthe DWP--1. However bumper bars are required to facilitate supply boat1. However bumper bars are required to facilitate supply boataccess for diesel fillaccess for diesel fill

UseUse ofofaa singlesingle--levellevel bridgebridge accessaccess betweenbetween LQLQ andand CPPCPP shallshall bebeusedused.. TheThe bridgebridge willwill connectconnect thethe mainmain deckdeck levellevel ofofthethe CPPCPP andand thetheLQLQ..


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CPP Facilities DesignCPP Facilities DesignStructure DesignStructure Design

Fixed platform 8 legsFixed platform 8 legs

8484

diameters pilesdiameters piles

Skirt pile (if 8 legs are inadequate)Skirt pile (if 8 legs are inadequate)

TopsideTopside -- FloatFloat--over installationover installation

JacketJacket --Launching and craneLaunching and craneassisted upendingassisted upending 20 years of sacrificial anodes20 years of sacrificial anodes


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CPP Facilities DesignCPP Facilities Design

Glycol

ContactorWellhead

Platform

Wellhead

Platform

Wellhead

Platform

Separator

Condensate

Stabilization

FSO

Compression

GasMetering

Pipeline

WaterTreatment


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QP Facilities DesignQP Facilities DesignDiamondDiamondLivingLivingQuartersQuartersBuildingBuilding

Designed for modular construction withDesigned for modular construction with maximaummaximaum capacitycapacity

of 150 personnelof 150 personnel

AA HelideckHelideck to land a Sikorsky Sto land a Sikorsky S--61, S61, S--76 or a76 or a EurocopterEurocopterEC155 helicopterEC155 helicopter

Dining/mess facilities designed to accommodate 90Dining/mess facilities designed to accommodate 90personnel at one servingpersonnel at one serving

A medical centreA medical centre

AA gymnasiumgymnasium andand outdooroutdoorrecreationrecreation facilitiesfacilities ((atat roofrooflevelleveljustjust belowbelow thethe HelideckHelideck).).

AA TVTV//cinemacinema//trainingtraining roomroom providedprovided toto accommodateaccommodate 8080

personnelpersonnel


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QP Facilities DesignQP Facilities Design

TopsideLayout

Three deck levels are envisaged which include a Maindeck, a Mezzanine deck, and a Lower deck.

The LQB shall be installed on the Main deck.

The Central Control Room building will be installed on acantilever on the QP.

All other facilities shall be located either on the Mezzaninedeck, Lower deck or in spaces available on the Main Deck.

A single level bridge shall be used to connect the CPP to

the LQ.


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QP Facilities DesignQP Facilities DesignStructure DesignStructure Design

Fixed platform 4 legsFixed platform 4 legs

ThroughThrough--leg piles and groutedleg piles and grouted

annuliannuli SideSide--lifting and cranelifting and crane

assisted upendingassisted upending

20 years of sacrificial anodes20 years of sacrificial anodes


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FP/T DesignFP/T Design A flare tower, bridge connected to the CPP shall beA flare tower, bridge connected to the CPP shall be

provided. The tower will support the flare tips of the HP, LPprovided. The tower will support the flare tips of the HP, LP

and Acid Gas flare systems.and Acid Gas flare systems. Preliminary flare and dispersion studies have initially setPreliminary flare and dispersion studies have initially set

the bridge length to be 120 m and tower height to be 25 mthe bridge length to be 120 m and tower height to be 25 mabove the flare platform deck.above the flare platform deck.

Structure DesignStructure Design

A 3 legged tripod structureA 3 legged tripod structure

UngroutedUngrouted leg pilesleg piles 15 years of sacrificial anodes15 years of sacrificial anodes


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WP DesignWP Design The function of the wellhead is toThe function of the wellhead is to

maintain surface control of the well.maintain surface control of the well.

All actuated wellhead valves will beAll actuated wellhead valves will behydraulically operated.hydraulically operated.

Wells will be drilled by tender rig.Wells will be drilled by tender rig.

All of Christmas trees that be usedAll of Christmas trees that be usedin the project are dry type.in the project are dry type.

Structure DesignStructure Design

4 legs with though leg piles4 legs with though leg piles

Sided lifting and craneSided lifting and craneassisted upendingassisted upending

20 years of sacrificial anodes20 years of sacrificial anodes


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3D Design3D Design


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Approx Tonnage of PlatformApprox Tonnage of Platform

10001000

12001200

Wellhead ( 6 WH)Wellhead ( 6 WH)

JacketJacket

TopsideTopside

100100Bridge (2 bridges)Bridge (2 bridges)

500500

500500

FP/TFP/T

JacketJacket

TopsideTopside

800800

15001500

QPQP

JacketJacket

TopsideTopside

600060001500015000

CPPCPP

JacketJacketTopsideTopside

Approx. weightApprox. weight

(Tons / Each)(Tons / Each)

FacilitiesFacilities

Offshore Platform Installation.pdf

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