0003-MI20-00P1-0450 REV 0 - WEIGHT CONTROL PROCEDURE.pdf

MODEC International, Inc. FPSO

Weight Control Procedure 0003-MI20-00P1-0450, Rev. 0

TABLE OF CONTENTS 1.0

EXECUTIVE SUMMARY .................................................................................................. 3

2.0

BACKGROUND ................................................................................................................ 3

3.0

BASIS ............................................................................................................................... 3 3.1 REFERENCES ...................................................................................................... 3

4.0

DEFINITIONS AND ACRONYMS..................................................................................... 4

5.0

PROCEDURES, SCHEDULE, AND DUTIES ................................................................... 6 5.1 ENTITIES .............................................................................................................. 6 5.2 WEIGHT HISTORY ............................................................................................... 7 5.3 HULL CONTRACTOR ........................................................................................... 7 5.4 TOPSIDES MODULE FABRICATOR.................................................................... 8 5.5 MARINE GROUP / NAVAL ARCHITECT .............................................................. 8 5.6 TOPSIDES ENGINEERING CONTRACTOR........................................................ 9 5.7 MOORING GROUP............................................................................................... 9 5.8 WEIGHT CONTROL REPORT............................................................................ 10 5.9 WEIGHT, COG, CATEGORY, AND ACCURACY TARGETS ............................. 10

APPENDIX A – DISCIPLINE CHECK LIST ............................................................................... 12

Figures Figure 5-1 Weight History ............................................................................................................. 7

Tables Table 5-1 Percentage of Contingency & Tolerance ...................................................................... 6 Table 5-2 Weight Sources ............................................................................................................ 6

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1.0


EXECUTIVE SUMMARY This document defines the Company procedure for ensuring that a reliable weight control program and system of weight and center of gravity (COG) reporting is implemented and continuously monitored in order to track both the floating unit and individual topsides modules’ total weights, and control the added and removed weights as well as the centers of gravity during the engineering and construction phases of Company Project. This document defines the requirements for weight estimating and includes definition / abbreviation applied to weight control, the basis for weight estimating, level of details required, weight allowances, reporting format to be used, and weighting requirement for all Company projects. Special arrangements for each project are covered in particular specifications which supplement or amend this general specification.

2.0

BACKGROUND Company facilities must meet minimum Industry standards to ensure that Quality, Health, Safety, Environmental, and Operations goals are attained. Standard specifications are used to communicate the minimum standards within the Company as well as to Suppliers and Contractors.

3.0

BASIS Industry codes, standards, and practices, as well as Company experience and preferences are the basis for this document. The following references apply only as specified in the body of this document. If the reference is not mentioned within, it is not applicable. Latest reference editions, including addendum, in force at contract award apply. Reference requirement conflicts shall be brought to Company attention for resolution. The most stringent requirement of the following references applies unless otherwise specified in writing by the Company.

3.1

REFERENCES

3.1.1

Company

Number / Identification

Title

None

3.1.2

Client

Number / Identification

Title

None

3.1.3

Industry Codes, Standards, Rules, and Regulations

Number / Identification API RP-2A WSD

Title Recommended Practice for Planning and Construction of Fixed Offshore Platforms - Working Stress Design

ISO 1000

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International system of units

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4.0


DEFINITIONS AND ACRONYMS The following definitions apply within the body of this document:

Term

Definitions

Bulks

Bulk, or standardized equipment, is defined as nonspecific equipment such as piping, valves, electrical cables, etc.

CA

Classification Authority

Calculated weight

"Design drawing," "fabrication drawing," and "installation drawing" stages according to API RP-2A. The weight determined by calculation, bill of quantities, MTO, etc.

Client

MODEC International, Inc. Client and / or its assigns.

COG

Center of Gravity

Company

MODEC International, Inc. and/or its assigns

Content

The weight of gas, liquid, and powder, etc. that a component, such as a tank, vessel, or piping line contains in normal operating condition.

Contingency A quantity that can be added to the weight of an item or assembly to reflect the level of design and/or implementation of the item concerned. Design margin

The weight difference between weight budget and reported weight is meant to cater for any design development; may have a negative or positive value.

Dry Weight

The weight of an item or assembly installed with no fluids, consumables, tools, etc.

Equipment and Packages

The equipment and packages (the combination of equipment and related bulks) comprise the specific equipment responsible for or involved in a specific oil field function, such as separator, turbo-compressor, crane, etc. They are identified on drawings and documents by standardized identifiers; this identifier can be used to distinguish between bare equipment and packages. Disciplines concerned: boilermaking, mechanical, electrical, instrumentation, HVAC, safety.

Estimated Weight

"Bid drawing" stage according to API RP-2A. The weight based on the estimated equipment weights, on drawings, or design drawings with approximate calculations, on information available at particular times, or on experience giving an indication of the weight for an item or assembly.

Facility

Supplier or Subcontractor shop and/or any property owned by a Supplier or Subcontractor where any portion of the work shall be performed.

Hook Weight Lift weight plus weight of rigging Hull Contractor

Shipyard / Integration yard contracted by the Company to construct a new build or convert a tanker vessel as well as integrate the topsides modules and mooring system.

Hydrotest Weight

Weight of an item in test conditions, including equipment temporarily required for the test.

Lift Weight

The total weight of an item ready for lifting, excluding lifting rigging, including padeye.

Live Load

Theoretical load on deck area according to the defined function of the deck area.

Marine Group / Naval Architect

Group within Company Project Team tasked with designing, studying, and analyzing the new build vessel or the FPSO vessel conversion as well as the vessel response to various loading conditions. This group is also the overall entity responsible for all weight control activities.

Maximum Allowable Weight

Maximum stipulated weight for one or more stages in the implementation of a project (for example: lift, operating, etc.).

Mooring Contractor

Organization responsible for the fabrication, installation, and commissioning of the mooring system.

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MODEC International, Inc. FPSO Term

Weight Control Procedure 0003-MI20-00P1-0450, Rev. 0 Definitions

Mooring Group

Group within the Company Project Management Team responsible for engineering, design, and procurement of the mooring system required to anchor FPSO and interface with the subsea systems.

Operating Weight

The weight of an item or assembly installed and in operation including consumables, operating fluids, without floor live loads.

Reported Weight

The weight reported by the Contractor from sketches, take-off from drawings, CAD models, weight allowance, Supplier information and weighed weight. Calculated weight / Estimated weight + weight allowance = report weight

Rigging

Sling, spreader bar, lifting frame, shackle, etc.

Services

Any service or work performed by a Supplier that must comply with the requisition requirements or the contract to procure, design, manufacture, and deliver the work.

Standards

Industry Codes, Standards, Guides, and Recommended Practices referenced herein, meaning the latest issue or edition in force at the end of the Supplier bid validity date or the contract date.

Subassembly Part of a structure consisting of items that are indivisible for weight control purposes and lifted all at once. Known equipment to be added in future must be included in the subassembly and marked "Future." Supplier

At quote stage: any entity invited to provide a quotation for the equipment and/or any Subcontractors thereto. At Purchase stage: any entity contracted for the supply of the equipment and/or any Subcontractors thereto. In all cases, the Supplier is responsible for performance of all Work and shall be the single point of contact for all Work related issues. The Company shall not receive information from nor respond directly to Subsuppliers.

System

A system is defined as the combination of equipment and bulk supporting the same petroleum function. The definition and limits of the systems are defined in standard specifications.

Target weight

The weight of an item or assembly including the associated "tolerances" and "contingencies." This weight is determined at the beginning of the engineering phase and is checked throughout the project against the maximum allowable weight.

Tolerances

Positive or negative values linked to the construction tolerances of each item being used.

Topsides Firm / Organization contracted by the Company to engineer the topsides production facilities to be Engineering installed on the FPSO. Contractor Topsides Module Fabricator

Organization responsible for the Fabrication of the topsides module(s). Note that some modules shall be subcontracted as a “turn key” project where the Fabricator provides the Company with detail engineering/design and construction services.

Weighed weight

The weight of an item or assembly as measured in the presence of a third party witness and of necessity accompanied by a certificate and accuracy of weight. The certificate shall specify the status at the time of weighing (dry or other, etc.).

Weight Allowance

Weight added to the calculated weight to account for weight uncertainty and definable weight that could not be specified at the reported project phase such as weld material, paint, mill tolerances, etc.

Weight Budget

The project weight reference established by the Company as control reference during the design, fabrication, and installation process.

Weight monitoring

Obtaining, verifying, recording, and processing information on the weight of each item of an assembly so that the total weight and position of the centre of gravity of that assembly is known at all times.

Work

Any material, item, or service listed in the requisition or contract as being in the Supplier’s Scope of Supply

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5.0

PROCEDURES, SCHEDULE, AND DUTIES

5.1

ENTITIES The applicable Entities shall submit to the Company for approval the proposed weight control system upon contract award. The system shall be capable of calculating weight and Center of Gravity (COG) totals for lift, dry, and operating conditions including all equipment, bulks, and other categories contributing to the weight. These conditions shall be totaled both for individual modules and for the overall topsides facilities. The report shall show the detail weights of structural steel items, equipment, piping, instrumentation, electrical items, HVAC system, supports, safety equipment, cable trays, grating, deck plating, handrails, stairs, etc. The Entities shall maintain a system for applying contingencies to the reported weights to account for inconsistencies in estimates and weight reporting methods. Contingencies shall be applied to both dry and operating weights and shall depend on the degree of definition included in the reporting of individual weight items. The following degrees of contingency are typical for varying degrees of definition in weight reporting: Table 5-1 Percentage of Contingency & Tolerance Phase

Weight Sources

FEED

Detailed

Construction

a

b

c

d

e

Discipline

AFD

AFD

AFC

As Built

Weighed

Structural

20

12

7

5

2

Mechanical

20

12

7

5

2

Piping

20

12

7

5

2

Electrical

25

15

10

5

2

Instrumentation

25

15

10

5

2

Architectural

25

15

10

5

2

HVAC

25

15

10

5

2

Safety

25

15

10

5

2

Table 5-2 Weight Sources No

Weight Sources

a

Preliminary estimates based on historical data, calculated weights based on accepted formulas, Supplier catalogue, educated guesses

b

Weight confidence ranging from engineering estimates and initial Supplier bid weights to Supplier provided weights based on Approved for Design (AFD) weight submittals

c

Approved for Construction (AFC) engineering discipline data and approved Supplier weight

d

Weight based on As Built documents

e

Final certified weights, to account for inaccuracies associated with load cells and post weighing additions

The various Entities shall designate a Weight Control Group composed of a Lead Weight Control Engineer and responsible discipline representatives to maintain and report monthly

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MODEC International, Inc. FPSO weight totals and COG locations. Engineer to: • Collect discipline data

Weight Control Procedure 0003-MI20-00P1-0450, Rev. 0 It is the responsibility of the Lead Weight Control

•

Input the data into the reporting system

•

Analyze the weight totals and COG locations for validity, including Supplier data

•

Produce the monthly report noting changes from the previous month and submit to the Project Management Team.

The discipline representatives (Mechanical, Structural, Piping, Electrical, etc.) are responsible for submitting weight information to the Lead Weight Control Engineer, when required, using the designated reporting form developed at project onset. These representatives are tasked with confirming the validity of the reported weight, submitting the weight, and describing the basis of the weight and COG.

5.2

WEIGHT HISTORY The reported weight is built up from weights derived from the equipment list, drawings, weight take-off, and weight allowance that represents weights added for items not yet identified. The proportion of weight take-off shall vary as the design develops and more detailed information becomes available. An important issue of the weight control is to evaluate the weight allowance and change it according to the level of accuracy of the weight take-off. The figure below schematically describes the planned development of weights from initial estimation to completion.

Weight

Max allowable weight

Weight budget Target weight

Contingency

Design change

Design Margin Weight Allowance

Reported weight

Estimate Weight take-off Weighed weight FEED

Detailed Engineering

Time Construction

Hook up

Figure 5-1 Weight History

5.3

HULL CONTRACTOR After the vessel arrives at the Hull Contractor’s lay-up site, measurement of the draft at the forward, midship, and aft perpendiculars as well as dead weight inventory onboard at that

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time of measurement shall be compared with drafts calculated for the vessel prior to modification. Data from this initial condition shall form the basis for estimates of lightship weight and subsequent trim and stability calculations for the completed FPSO. At the end of FPSO construction, inclination tests shall be performed to establish the weight of the ship, center of gravity, and other data required by the Marine Group/Naval Architects. All information shall be evaluated and compared with the calculated data and shall be prepared and submitted in a manner acceptable to the Classification Authority. The Hull Contractor shall be responsible for implementing and monitoring an ongoing weight control program for the FPSO hull structure and appurtenances. Duties shall include: • Gathering weight control data from applicable Entities

5.4

•

Issuing to the Marine Group/Naval Architects monthly detail and summary reports including progress, weights, and centers of gravity for various components and load cases

•

Approve the weighing plan for each module constructed by the Topsides Module Fabricator(s)

TOPSIDES MODULE FABRICATOR The Topsides Module Fabricator shall be responsible for providing on a monthly basis the detail information for the Topsides Weight Control Report prepared by the Topsides Engineering Contractor. All documentation/information provided by the Topsides Module Fabricator shall be approved by the Topsides Engineering Contractor and the Company. The Topsides Module Fabricator shall also provide the Company with the detail plan for weighing each module including equipment details, etc. for review and approval. The Topsides Module Fabricator shall be responsible for weighing each “As Built” module using calibrated and certified load cells. The certified weight and documentation of each module shall be provided to the Company prior to module loadout.

5.5

MARINE GROUP / NAVAL ARCHITECT The Marine Group/Naval Architect shall have the overall responsibility of maintaining and issuing a monthly Weight Control document for both the FPSO and topsides modules which shall contain all dry, lift, wet weight, and COG information. This information shall be gathered from the Hull Contractor, Topsides Engineering Contractor, Client Suppliers, Company Suppliers, and Mooring Group. This document shall be updated as information becomes available and issued monthly during the engineering / design and construction / conversion phases of the FPSO work. The format and data in this document shall be completed in a manner acceptable to the Client and Classification Authority (CA). The Marine Group/Naval Architect is the overall entity who shall be responsible for: • Establishing appropriate procedures for weight control •

Maintaining the overall Weight Control Report (entire FPSO i.e. hull, topsides, etc.)

•

Monitoring the ongoing weight control program of the FPSO and topsides modules

•

Gathering weight control data from the various entities

•

Resolving issues pertaining to weight control activities

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•

Issuing monthly report

•

Summarizing and reporting the progress status

•

Issuing the final documentation to both the Client and Classification Authority for classification of the FPSO.

The format of the weight control document of each entity shall be approved by the Company.

5.6

TOPSIDES ENGINEERING CONTRACTOR The Topsides Engineering Contractor shall furnish calculated weight and COG information for all the topsides modules as scheduled below: • One month after contract award to the Topsides Engineering Contractor

•

•

-

Submit equipment list with target weight and COG calculation

-

Submit summary report listing weights and COG for each topsides module

Monthly intervals during Detail Engineering / Design and Construction -

Update weight and COG information based on the latest design progress

-

List the differences from the previous month’s report

Ship-Out date for every topsides module or equipment package to the Hull Contractor -

Finalize “As Built” weight and COG information

-

Submit a final report summarizing all of the information

The Topsides Engineering Contractor shall be responsible for implementing and monitoring an ongoing weight control program of the topsides production facilities, including gathering data from the various Topsides Module Fabricator(s) and issuing monthly detail reports such as summary data of weights and centers of gravity for lift, dry, and operating conditions to the Marine Group/Naval Architect.

5.7

MOORING GROUP The Mooring Group shall furnish calculated weight and COG information for the mooring system components as scheduled below: • One month after contract award to the Mooring Group •

Monthly intervals during Detail Engineering / Design and Construction -

•

Submit equipment list with target weight and COG calculation

Update weight and COG information based on the latest information

Ship-Out date of every topsides module or equipment package to the Hull Contractor -

Finalize “As Built” weight and COG information

The Mooring Group shall follow a similar procedure as described in Section 5.5. The Mooring Group shall be responsible for implementing and monitoring an ongoing weight control program for the mooring systems including: • Gathering data from the Mooring Contractor

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MODEC International, Inc. FPSO •

5.8


Issuing monthly detail and summary reports stating progress, weights, and COG for various components and load cases to the Marine Group/Naval Architect.

WEIGHT CONTROL REPORT The Marine Group/Naval Architect shall provide on a monthly basis a Weight Control Report for incorporation into the Monthly Project Report. The report shall be comprehensive in nature containing trending charts and graphs illustrating the progress of the monthly weight and COG. Each report shall also include explanations of any weight or COG changes from the previous month.

5.9

WEIGHT, COG, CATEGORY, AND ACCURACY TARGETS During the detail engineering / design phase of the project, weight and COG of each component shall be estimated as described in the following: • The Weight Estimate shall be developed separately in each category:

•

•

•

-

Lift case for individual topsides module including pipe racks, flare / vent structure, mooring components, etc. for Hull Contractor lifts

-

Dry weight onboard the FPSO

-

Operating weight onboard the FPSO including process fluids, etc.

Target accuracy of the Weight Estimate shall be: -

+/- 2.0 % of the summed weight of each topside module (includes both Topsides Modules and Packages/Skids)

-

+/- 2.0 % of the summed weight for each mooring system (including Chain Table, Swivels, Swivel Supports, etc.)

-

+/- 2.0 % of total FPSO lightship weight (Marine Systems)

The COG of the weight shall be developed separately for each weight category in accordance with the following: -

In the longitudinal direction (stern to bow), the origin shall be the FPSO Aft Perpendicular (A.P.), positive toward ship forward

-

In the transverse direction (port to starboard), the origin shall be the FPSO center line, positive toward ship port side

-

In the vertical direction, the origin shall be the FPSO base line (top of bottom keel plate), positive toward ship upper.

-

The report shall include an illustration of the coordinate system for reported weight and the current location of the COG

Target accuracy of the COG shall be: -

In the ship’s longitudinal direction, +/- 0.2 % of the FPSO’s length between perpendiculars (Lpp). (Topsides Modules, Packages, Skids, Mooring System)

-

In the ship’s longitudinal direction, +/- 1.0 % of the FPSO’s length between perpendiculars (Lpp). (Marine Systems)

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-

In the ship’s transverse direction, +/- 0.2 % of the FPSO’s Molded Breadth (B). (Topsides Modules, Packages, Skids, Mooring System)

-

In the ship’s transverse direction, +/- 1.0 % of the FPSO’s Molded Breadth (B). (Marine Systems)

-

In the ship’s vertical direction, +/- 0.2 % of the FPSO’s Molded Depth (D). (Topsides Modules, Packages, Skids, Mooring System)

-

In the ship’s vertical direction, +/- 1.0 % of the FPSO’s Molded Depth (D). (Marine Systems)

If it becomes clear at any time during the course of the project (engineering / design and construction), or during the lifting phase, that the estimated weight and COG shall be over the above defined criteria, then the Topsides Engineering Contractor, Mooring Group, and Marine Group/Naval Architect Engineering Managers shall be responsible for: identifying the cause for the discrepancy, determining the appropriate action, and reporting the recommendation / action to the Company. During ship conversion, the Hull Contractor in the shipyard shall weigh all components added and removed that have an estimated weight of 5 tonnes or more. Prior to any weighing, load measuring devices and systems shall be calibrated and certified. Identification numbers of load measuring devices and digital readout equipment shall be noted on the calibration certificates. The Hull Contractor’s Engineering Manager shall be responsible for the accuracy of weight and/or COG of the measured weights as well as meeting CA requirements for calculation of the FPSO lightship weight, weight distribution, and COG. The Marine Group/Naval Architect shall be responsible for finalizing the Weight Control document within 1 week following the final deadweight survey (or inclining test) to reflect “As Built” conditions. 3 copies of this document shall be submitted to the Project Management Team after the CA review and approval.

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APPENDIX A – DISCIPLINE CHECK LIST

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Architectural General Inclusions •

Heat Shields (prefabricated)

•

Prefabricated Internal Walls

•

Partitions

•

Wall Linings

•

Ceilings

•

Subfloor Construction (screed, floating floors)

•

Floor Finishes (carpets, linoleum, PVC, tiles)

•

Floor Finish Protection

•

Comfort Insulation (sound and heat)

•

Furniture and Equipment

•

Doors (louvers, handles, hinges, actuating equipment)

•

Signs

•

Weather Louvers

•

Prefabricated External Walls

•

Floating Top Deck Elements

•

Passive Radiation Protection

•

Sanitary Ware

Specific Inclusions •

Electrical and control room finishes such as special doors, walls, and ceilings

•

Internal enclosed staircases (except steel content)

•

Dry fix passive protection

•

Electrical and instrumentation room false floors

•

Vending machines

•

Drinking water coolers

•

Laboratory furniture

•

Windows

•

Platform ID signs (except structural support)

•

Cafeteria equipment

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Specific Exclusions •

Main supports for cladding, louvers, heat shields etc. designed by structural

•

Platform ID sign supports designed by structural

Electrical General Inclusions •

High Voltage Switchboards

•

Low Voltage Switchboards

•

Uninterrupted Power Supply Systems (batteries, charger, inverters, static switches, distribution boards)

•

Welding and Small Power Socket Outlets

•

Volt Distribution Boards

•

Motor Control Stations

•

Junction Boxes

•

Electrical Cables

•

Transformers

•

Transits

•

Lighting Equipment Systems (normal, emergency)

•

Permanent Navigation Aids (foghorns, lights)

•

Heat Tracing

•

Cable Racks, Trays, and Supports for electrical and instrument cables (excludes field run instrument cable racks)

Specific Inclusion •

Local supports and hangers for cable racks designed and requisitioned by electrical

•

Instrumentation on electrical requisitioned equipment packages

•

Power systems to HVAC areas

•

Field run electrical cables, trunking, dips, trays, etc.


Cable trays for instrument field cables by instrument.

•

Instrument/telecom cables including field run instrument

•

Cable rack supports designed and requisitioned by structural

•

Electrical and control room finishes such as special doors, walls, and ceilings by architectural

•

Electrical, including motors supplied with equipment packages by mechanical

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•

False floors by architectural

•

Free standing electrical equipment purchased by mechanical (control panels, frequency converters, etc.)

HVAC General Inclusions •

Air Conditioning Units (air handling units, spot extract units).

•

Fans

•

Humidifiers

•

Dampen (shut off, pressure control, fire)

•

Coils (heating, cooling)

•

Electrical heaters

•

Filters (coalescers, separators, chillers)

•

Ducting (internal, external), including Insulation

•

Louvers (grills, vents, diffusers)

•

Sound Attenuators


Ducting supports designed and requisitioned by HVAC

•

Piping associated with HVAC equipment, up to, but excluding, the block valve

•

Instruments on HVAC requisitioned equipment


Ducting supports designed and requisitioned by Structural

•

Ducting and air intake/outlet chambers designed by Structural

•

Material handling equipment in HVAC areas by Mechanical

•

Power systems to HVAC areas by Electrical

•

Tubing, piping, and fittings scheduled/requisitioned by Instrumentation

•

All HVAC instrumentation outside requisitioned equipment packages

•

Main supports for weather louvers designed and requisitioned by Structural

•

Weather louvers by Architectural

Instrumentation General Inclusions •

All telecommunication field equipment

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•

Dishes (telecommunications, tropospheric)

•

Telecom central equipment

•

All instrumentation and control equipment

•

All fire/gas detection devices and control equipment (detectors, alarms, cabinets, panels)

•

All packaged equipment requisitioned by Instrumentation (oil/gas metering skids, hydraulic power packs for ballast system)

•

Computer hardware

•

Instrument junction boxes (marshalling cabinets)


Instrument/telecom multicore cables in main cable racks

•

Tubing, piping, and fittings scheduled/requisitioned by Instrumentation

•

Support frames, mounting posts and brackets scheduled/requisitioned by Instrumentation

•

Field run instrument/telecom cables, field trays, and clips

•

Control cabinets including accumulators for all actuated valves


Cable racks and supports for instrument cables designed by Electrical

•

Instrumentation supplied with equipment packages by Mechanical and Electrical

•

Instrumentation on vessel trims. Information to be passed to Piping (Process)

•

False floors by Architectural

•

Hydraulic power packs not requisitioned by Instrumentation

•

Choke valves, control valves, safety valves, including actuators, in-line instruments, and actuators for piping on/off valves reported by Piping (Process) under Instrumentation discipline code. Instrumentation to give information to Piping (Process)

Mechanical For weight analysis purposes, this discipline has been split into the following subgroups: 1. Static Equipment 2. Rotating Equipment 3. Material Handling Equipment 4. Drilling Equipment

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1. Static Equipment General Inclusions •

Separators and Scrubbers

•

Towers (columns)

•

Drums

•

Tanks including Pots and Sumps

•

Coalescers and Filters

•

Pig Launchers, Receivers, Pigs

•

Heaters

•

Coolers

•

Bundles

•

Attachments to above (supports, skid steel, insulation, linings, internals, gaskets, nozzles)

•

Packages (structure, vessels, exchangers, pumps, valves, in-line filters, powder and control systems, and attached HVAC items)

•

Flare tips

•

Workshop maintenance equipment and tools

•

AFFF Tanks


Skid steel, supports, platforms and ladders on equipment packages supplied by equipment Supplier.

•

Pipework, electrics, and instrumentation supplied with equipment packages


Ladders, platforms, and supports for equipment designed and requisitioned by Structural

•

Piping and instrumentation attached to equipment piping, that is not part of the Supplier supply (i.e. vessel trims)

•

Structural integrated tanks designed by Structural

2. Rotating Equipment General Inclusions •

Turbines

•

Compressors

•

Generator Sets

•

Diesel Engines

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•

Pump

•

Attachments to above (motors, gearboxes, gearbox oil, couplings, silencers, filters, ducting, tanks, insulation, acoustic hoods, protective covers, skid steel)


Free standing electrical equipment purchased by Mechanical (i.e. control panels, frequency converters)

•

Electrical motors on mechanical equipment

3. Material Handling Equipment General Inclusions •

Runway Hoists

•

Hoists located in stores

•

Pedestal Cranes including Pedestal and Adaptors

•

Lifts, Lift Motors, and Gear

•

Supply Hoses

•

Flare Tip Removal Equipment

•

Forklift Tucks and Hand Trolleys

•

Riser and Umbilical Handling Winch


Gantry runway hams and cantilevers supplied by crane or hoist Supplier

•

Crane pedestal supplied by crane Supplier

•

Storage system/racking and stores

•

Material handling equipment in HVAC area


Lifting lugs/monorails designed and requisitioned by Structural

•

Gantry/runway beams and cantilevers designed and requisitioned by Structural

•

Hose landing platforms by Structural

•

Lift shafts by Structural

4. Drilling Equipment (optional) •

BOP Handling System

•

Motion Compensators

•

Chemical Injection Unit

•

Desilters

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Shale Shakers

•

Mud Pumps and Centrifuges

•

Agitators

•

Drilling Control Panels

•

Mechanical Handling Systems (drilling related)

•

Explosive and Radioactive Stores

•

Pressure Vessels and Surge Tanks

•

ROV and Handling System

•

Cementing Unit

•

Piperack Gantry Crane

•

Catwalk

•

Well Logging Unit and Tool House

•

Winches

•

Drawworks

•

Deadline Anchor

•

Rotary Table

•

Choke Manifold

•

Hydraulic Cathode

•

Iron Roughneck and Rails

•

Mouse Hole

•

Riser Tensioning System

•

Fingerboards

•

Travelling Block

•

Top Drive and Dolly

•

Drilling Bulk Tanks

•

Hydraulic Power Packs (drilling related)


Material and Corrosion General Inclusions •

Paint

•

Metalizing

•

Nonslip Floor/Deck Coatings

•

Cathodic Protection

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Piping General inclusions •

Main Process System Piping

•

Utilities System Piping, including Drains

•

Insulation and Linings on Pipe Work

•

Manifolds

•

Piping Special Items (strainers, traps, etc)

•

Pipe Supports


Contents of piping systems during permanent and temporary phases

•

Pipe supports designed and requisitioned by piping

•

Piping attached to mechanical equipment, not supplied by Supplier (i.e. vessel trims)

•

Piping to and from HVAC equipment up to and including the first block valve

•

Active fire protection piping (fire mains, deluge systems, sprinkler systems)

•

Deluge/sprinkler nozzles (information from safety)

•

Plumbing for sanitary ware

•

Choke valves, control valves, safety valves, including actuators, in-line instruments and actuator for piping on/off valves reported by Piping (Process) under instrumentation discipline code. Instrumentation to give information to Piping (Process).


Pipe supports designed and requisition by Structural

•

Pipe work supplied with equipment packages by Mechanical and HVAC

•

Instrument tubing, piping, and fittings by Instrumentation

•

Caissons by Structural

•

Control cabinets for piping on/off valves including accumulators by Instrumentation

Safety, Environment, and Security General Inclusions •

Fire Fighting Equipment

•

Spray on Passive Fire Protection

•

Fireman Equipment, including Cabinets

•

Central Safety Points/Central Fire Points

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•

Fire Monitors (fixed and portable)

•

Foam Injection Packages

•

Deluge and Sprinkler Skids

•

CO2 stores (skids)

•

Hydrants and Cabinets (water, foam)

•

Fire Hose Reels and Cabinets

•

Extinguishers (dry powder, CO2, water, foam)

•

Lifebuoys

•

Escape Chute

•

Survival Suits, including Lockers

•

Lifejackets, including Lockers

•

Breathing Apparatus (charging and testing equipment incl. Containers)

•

Personnel Baskets (storage box)

•

Stretchers (rescue, collapsible, basket)

•

First Aid Kits

•

Safety Showers and Eye Baths


Main platform signs by Architectural

•

Fire mains, deluge-piping system, sprinkler piping system and CO2 distribution systems by piping (Process).

•

Passive fire protection, dry systems by Architectural

•

AFFF tanks by Mechanical/Structural

•

Man overboard boats and launching equipment (davits) by Mechanical

Structural General Inclusions •

Main Module Framing and Plating

•

Main Trusses

•

Structural Castings

•

Intermediate and Mezzanine Deck Framing, Plating and Grating

•

Weather Deck Framing and Plating

•

Drilling Derrick

•

Skid Base

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•

Skid Rails

•

Main Pipe Racks and Cable Racks

•

Dropped Object Protection

•

Tanks integrated in structure

•

Crane Pedestal Support Steel

•

Crane Boom Rests

•

Temporary Bracing and Internal Seafastenings

•

Lift Shaft

•

Miscellaneous outfitting steelwork to include walkways, stairs, stair towers, ladders, hand railing, crash barriers, hatches, man ways, access platforms


Internal and external fire/blast walls designed by Structural

•

Internal and external wall supports for walls designed by Architectural

•

Equipment supports designed by Structural

•

Pipe, ducting/lifting lugs/crane rails designed by Structural

•

Platform ID signs supports

•

Installation and tugger padeyes

•

Padeyes, lifting points, bumpers, and guides

•

Rigging platforms, rigging guides, and protection structures

•

Temporary walkways and ladders for use during all phases of installation

•

Bridge landings

•

Weighing and fabrication supports

Weight Control General Inclusions •

Content in tanks, vessels, piping lines etc. caused by commissioning activities and included during marine operations

•

Hook-up items not linked to a specific discipline (i.e. a workshop container)

•

Temporaries caused by fabrication activities such as scaffolding, welding equipment, etc.

•

Temporary marine equipment for transport to mating site and tow-out to field (i.e. UPC container, workshop container, marine containers)

•

Temporary equipment for offshore works (office containers, electrical and mechanical containers, workshop and toolbox containers, storage and empty containers, open baskets etc.)

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Weighing adjustments

•

Crew, provisions, and stores

•

Live loads (weight discipline) - Set Back -

Hook Load

-

Drilling Riser Tension

-

BOP Stack

-

X-ms Tree

-

Riser Storage

-

Caisson Storage (if required)

-

Tool Stores

-

Mud Surge Tanks

-

Drilling Fluids

-

Drilling Bulk Storage

-

Sack Storage

-

Chemical Storage

-

Drilling Area Drain Tank

-

Umbilical Line Tensions

-

Transfer Line Tensions

-

Offloading Lines Tension

-

Mooring Load

-

Mooring Chain Storage

-

Ballast

-

Environmental Load

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0003-MI20-00P1-0450 REV 0 - WEIGHT CONTROL PROCEDURE.pdf

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