Working_Key Technical Issue for Equipment Packages - 28-Jul-12

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KEY ISSUE FOR EACH PACKAGE DURING RFQ/ TBC/ POTR/EXECUTION

ITEM No KEY TECHNICAL ISSUE PROJECT CONTACT PERSON SOLUTION

1 STT-006002 E-house building

1.1 STT

1.2 Can not install the Switch Gear due to the door width limitation STT

1.3 The bunk bed in Temporary shelter (in LCR building) is supplied without railing side STT

1.4 Safety hook inside LCR buidling was damaged because it was taken out to use for commissioning. STT

1.5 HVAC PLC failed/not working during commissioning STT

1.6

2 STT-006003 LV MCC

2.1 Problem in glanding cable because many cable comes to one cubical STT Using pulling box to resolve this issue.

2.2 Torque value for termination STT

3 STT-006004 Generator

3.1 Vendor committed supply one thing then suddenly change to another thing (DEC 200 for Generator package) STT

3.2 Drawing submitted from vendor is not finalizde until FAT finished. STT

3.3 Painting problem, need to blasting all the exist painting to repaint for Generator skid STT

3.4 All the instrument device in Generator need to be re-calib STT

3.5 STT

3.6 The sonenoid valve is working with high temperature (76 ~ 80 Deg Celcious). STT

4 STT-006006 PAGA

4.1 package equipments do not have supply space enough for termination at site STT Increase QAQC check at Vendor work shop

Vendor pulled cable when cable schedule was not fixed. It cause a lot of cost impact because of pulling new cable, duplicated cable….

Expedite Detail design sub-contractor to provide and fix the cable schedule before E-house vendor pulling cable.

Require LV switch gear with separable or consider the door width during review vendor data

Engineering need to check carefully in drawing and inform to resident inspector to request LCR buidling vendor to do this job.

Remind commissioning team do not take the safety hook out for commsioning.

Engineering/inspector need to attend and check carefully in HVAC FAT

Engineering to request vendor to provide the torque value for interconnection especially for battery, big cable connect to equipment.

Increase checking the Vendor subcontactor unprice PO

Need to send engineering to vendor facilty to finalize the drawing.

Need to send resident painting inspector to vendfor facility

Remind generator vendor to request his subvendor to provide all the calibration sheet of device during his purchasing these equipment

There are a lot of spare core/pair/triad inside Junction box and cabinet. It lead to no space for installation Terminal for terminating this spare Junction box, cabinet.

Engineering to check and adivse the suitable of spare f core/Pair/ Triad for each signal. Solution in STT: Twisting a 2, 3 sapre core and terminate to Grouding.

Engineering need to check with vendor for operating temperature of solenoid valve then choose the suitable soneloid.

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4.2 STT

4.3 The design of charger does not meet project requirement STT

4.4 STT

4.5 The Ex'd' enclosure of PAGA system was delivered to vendor late. It caused slipaging FAT date STT

5 STT-006007 Navigation Aid

NIL

6 STT-006008 UPS

6.1 Termination for BMS cables go through MCT, Vendor use multi cables. STT Request vendor to change to multicore cable .

6.2 The trip signal to shunt trip coil in UPS is system, it lead to the coil becoming overheat and damage STTRequest FCS vendor to send trip signal to pulse type

7 STT-006015 Telecom

7.1 Problem in configuration of Multiplexer offshore in Telecom package STT

7.2 Problem with installing NDB cable to ATU cabinet of Telcom system. STT

7.3 Ringer card need to installed in Ex'd' Junction box, however it's was designed to install in Ex'e' Junction box. STT

7.4 The pig tail cable of CCTV is too short. The camera can not freely rotated 360 Degree STT Order long pig tail for CCTV camera (5 m)

8 STT-006016 Heat Tracing

8.1 Take time to do the TBE for heattracing package because of sending RFQ with unsigned isometric drawings. STT

8.2 Some piping line ( mark as: VT) was missing heat tracing STT Electrical and piping engineer to cross check.

9 STT-007001 Facility control system

9.1 STT Specify clear scope during bidding for FCS package

9.2 VMS and FCS can not communication STT

9.3 BD1

The Junction box of strobe light has terminal for 6 mm2 as maximum while the cable is 10mm2 - can not terminate.

Carefully checking vendor data and hilight to Vendor for their change the terminal size. STT Solution: add 1 intermidate junction to change 10mm2 cable to 4mm2 Cable.

Request PAGA vendor to work closely with Battery charger vendor/ Detail Design engineer.

The AMI was damaged because he voltage ouput of battery charger is high in comparision with voltage operating range of AMI

Request PAGA need to do design carefully. Engineering to closely monitor for this issue.

Expeditor need to expedite on the delivery of sub-item of package.

This configuration need to be done during commsioning onshore, vendor to provide the necessary information and software for configurationNeed to check vendor data carefully to provide drawing for installation.

Engineering need to check carefully for design. Solution in STT: Move ringer card to install in safe area (Telecom cabinet)

Issue RFQ for Heattracing with isometric AFC drawing

Interface communication between FCS and 3rd party package (OPC server software with VMS and Generator Package)

VMS and FCS need to finalize the address of data transmission.

The IS calculation shall be done by designer instead of ICSS vendor If vendor cannot perform IS calculation. We need to clarify and get confirmation from vendor during bidding stage.

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9.4 BD1

9.5 BD1

9.6

The loop drawing should be prepared by vendor.

BD1

9.7 BD1

9.8 BD1

9.9 BD1

9.10 BD1

The third party serial link cable schedule interface between ICSS and third party package should be prepared by detail engineering contractor and procured by purchaser and pull by fabricator instead of vendor. Vendor to provide the serial link information of termination to detail engineering contractor to in-corporate and issue cable schedule and MTO during detail design stage.

The third party Modbus mapping list should be reviewed and coordinated by detail engineering contractor. After award to vendor, the format of Modbus link that required by ICSS package should be include to VDRL of third party package. The sub-system interface specification of ICSS vendor need to include in TR and notify to third party package vendor to strictly follow. ICSS vendor should responsible to verify the Modbus mapping list that approved by engineering contractor before implementation.

ICSS vendor should provide the detail of F&G detectors to Detail Engineering Contractor to prepare the installation detail.

If there is 2 communication link (fiber optic and radio) to shore or to another platform. The switching function should be done by telecommunication vendor.

Vendor to responsible for monitoring and supervise the installation of ICSS cabinet and pulling cable between cabinets. The pulling cable and installation should be by fabricator

Number of IO need to be estimated with correct contingency. In Bien Dong 1 project, the original IO estimation that informed by designer is 30% to accommodate the engineering grow during detail design stage. However, it's not enough due to changing type of signal for e.g from Foundation fieldbus to hart protocol, from IS to non-IS (because of third party vendor deviation from original requirement that we assigned in beginning of project)

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9.11 BD1

9.12 BD1

9.13 BD1

9.14 BD1

9.15 BD1

9.16 BD1

9.17 Commitment from the manufacturer BD1

9.18 Proven track record BD1

10 STT-007002 Wellhead control Panel

Number of serial Interface, type of protocol with third party package need to be identified in TR/Specification. The serial link cable schedule needs to be issued during TR preparation.

The Fire and Gas mapping need to be included in project. In Bien Dong 1 project, there is no fire and gas mapping; therefore the F&G detector is increased due to LR/VR comment. There are many addition and deletion that lead to many cost impact.

Vendor will start to do engineering and vendor data submission after the freeze design input is handover to them (P&ID, CEM, IO list, wiring, cable block, cable schedule …). The first round of submission of vendor data is required for detail engineering design contractor to perform vendor data incorporation. Vendor data incorporation including the vendor data from ICSS package as well as other related package. We need to plan for expediting vendor data of other package to make sure the vendor data in code A or at least code B with minor comment before proceeding with vendor data incorporation to issue design input for ICSS vendor.

The delivery of the package needs to be identified in TBE stage and notify to vendor during PO stage and we have to make sure not delivery too early but not too late with construction schedule to avoid the modification at site because of changing vendor data at final stage.

Technical Specification:- System Architecture: cyber security requirement for system architecture i.e. separate process control network and safety network, dedicated safety bus for SDS/FGS from PCS network. FF & Hart data asset management, number and type of operator work stations, separate Engineering work station for PCS and SDS/F&G- SIL 3 requirement for SDS/FGS: fault tolerant CPU, dual redundant I/O, certified by TUV, TUV Report submitted.- SIL 1 for AFGS- Power supply: vendor responsible for power distribution to peripheral devices- IO count: as per I/O schedules and P&IDs, 20% spare installed I/O , 20% spare space for future I/O including power supply. PCS system: for Close control loops hot-standby AI/AO cards.

Scope of supply:- TBE with scope of supply completed- Documentation per VDRL- Unit rates- Commissioning Spares- 2 Years operational Spares.

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10.1 Vendor can not supply the equipment on schedule due to their mistake in BOM preparation (WHCP package) STT

10.2 The number of NC and NC in Motor Strop PB of WHCP not match with Loop drawing STT

10.3 The PB equip LED don’t have power supply for LED in WHCP. STT

10.4 Vendor changed the type of valve inside WHCP without any notification STT

STT

11 STT-007003 ON-OFF Valve

11.1 On-Off valve were damaged during transportation for testing STT

11.2 Limit Switch for On-Off Valve are preinstalled with wrong IL/EOL value STT

11.3 12" ON-OFF valve was installed in wrong possition of open and close STT

12 STT-007004 Control Valve

12.1 STT Request vendor to limit number of supplier

12.2 The high pressure regulator is easy change set point and fail during commsioning STT Need to change other type of valve

13 STT-007005 Pressure Safety Valve.

13.1 Many PSV failed during calibration at site. STT

14 STT-007006 Virtual Metering System

NIL

15 STT-007007 Electronic Transmitter

15.1 Needle Valve for Pressure Transmitter is found cracked at PTSC warehouse STT

15.2Positive Displacment Flowmeter did not meet project process condition. It was changed to Coriolis type.

STTCheck carefully with vendor for process condition.

16 STT-007008 Sand monitoring

16.1 HSTD

17 STT-007009 H2S Scavenger

Increase epediting/checking work to vendor to avoid any material missing

Engineering to advise PB type to WHCP vendor before their starting procure PB.

Engineering to note this item to comment on vendor data.

Increase QAQC checking when the package is in fabrication.

Secure the transpotation fastening. Record the the equipment status right after handover to other party.

Increase cheking the Material at Vendor work shop and at PTSC warehouse

Engineering to advise fabrication team to install this valve

Control valve package: There are a lot of supplier of Control vavle in many contries. It cause miscontrolling and difficult to expediting. The Rumanian manufacture fabricate the valve very late.

Send engineer to witness PSV testing at Vendor facility.

- Replace a whole new batch for Needle Valve- Increase checking the material at Vendor Factory

Usually sand detector is clamp on type, so material selection is not a concern. Review the requirement of interface unit: local or remote installation which may affect to CCR/ EIR arrangement. Review how sand detector interfaces with ICSS/ FCS, where the sand rate calculation will be performed, any software or formular needs to be installed/ configured on ICSS/FCS. Review the distance from Sand detector (pipe bend) to choke valve which may impact to piping routing and 3D model as well.

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17.1 The fiber optic of H2S analyzer is too short STT

18 STT-007010 Orifice Plate

18.1 HSTD

19 STT-007011 Rotameter

19.1 STT

20 STT-007013 Pressure Gauge

20.1 Pressure gauge was damaged because Pressure leak test vendor. STT

20.2 Pressure gauge (diaphragm type) was damaged after tightening the bolt of flange STT

20.3 the temeperature gauge was damaged because of worker step on it. STT

20.4 HSTD

21 STT-007014 Pig Detector

21.1 HSTD

22 STT-007016 Level Gauge

22.1

The Glass Flip/Flap indicator of Level Gauge was damaged during transportation

STT

22.2 the Level sketch was finalized late. It impacted to package delivery STT

23 STT-007021 Fire and Gas

23.1 HSTD

Engineering to consider to request vendor provide suitable lenghth of fiber optic.

Vendor shall confirm that material of plate shall be able to withstand design condition stated in datasheet. Plate holder for RO class 1500# and above can be of integral RTJ ring (conventional) or screwed type RTJ ring (manufacturer std). Calculation shall be as per Miller handbook.

Vendor can not supply the equipment as per PO due to vendor overlook the technical requirement stated in the Specification and datasheet. (Rotameter package)

Make sure vendor do not overlook during the Bidding

Remind pressure leak test vendor do not touch to any Instrument equipment on platform

Engineering to ask vendor for torque value for tightening the bolt.

The Temperature gauge need to remove and storage in safe area after finishing pressure test and commsioning. Warning worker not step on the gauge.

Vendor must confirm all gauges are able to withstand design condition stated in datasheet. There are manufacturer standard items with no engineering code/ standard to review: PG/ DPG diaphragm seal type. Material of all components shall be as per datasheet and alternative material to be carefully reviewed in terms of ASME pressure-temperature rating and anti-corrosion ability. For thermowell, retaining flange/ cover flange if required shall be same as piping flange to suit the design condition while thermowell can be SS316L as minimum. If thermowell is one piece design and not the Vanstone type (retaining flange not required), carefully review the suitability of thermowell material with design condition.

Carefully review the following aspects: online isolation capability, principle of operation, online removal tool for intrusive pig detector, output signal requirement. Material of wetted parts shall be able to withstand design condition.

- Secure the transpotation fastening. Record the the equipment status right after handover to other party.- Change to Plastic flip/flap

engineering cross check between Mechancal and Instrument

Response time (T90) and SIL-rating are critical factors for Gas detector. Maximum distance (m) and installation direction are critical for Flame detector. Accessories: calibration kit and calibration method are to be discussed and agreed with Client's operation team, particularly for Gas detector which has remote or local calibration option. Alignment tool usually required for Intruder alarm installation. Wiring configuration for Smoke/ Flame detector with line monitoring ability to be carefully reviewed and agreed with ICSS Vendor for thier system wiring/ configuration. Intruder Alarm: power converter 24/12 VDC usually required with appropriate hazardous certification.

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24 Fusible Plug Panel

24.1 HSTD

25 Tube, fitting and valves

25.1 HSTD

Panel schematic must follow Purchaser design with no deviation. N2 Cylinder sizing calculation to be submitted with bid, country of origin to be clarified during TBC/ CBC. ESD Pressure transmitters may be SIL-2 rated.

For Tubing, Mo content should always be at least 2.5%, carefully review if any additional testing other than ASTM A269 is required. Fittings should always be Swagelok made. For valves & manifold, pay attention on pressure - temperature rating and material selection.

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REMARK

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Scope of work/ responsibility among Vendor/ Detail Engineering Contractor/ Fabricator/ T&I contractor.

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Other specific requirement to avoid the change and additional cost during execution.

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Essential criteria for package








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1 Please input package name here

1.1 Please input package concern here

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ITEM No KEY TECHNICAL ISSUE PROJECT CONTACT PERSON SOLUTION REMARK

General

BD1

There are the wrong Equipment Tie-In point than GA Drawing specified. BD1

BD1

Equipment which is fabricate from Carbon Steel has Flange Face rusty due to the tropical Enviroment BD1

BD1

HSTD Remind vendor to update the weight of equipment.

Potable Water Pump

HSTD Correct Standards shall be selected earlier to save time and effort

Diesel Transfer Pump

HSTD Good communication

HSTD For this service should select the pump which steep curve

HSTD

HSD Closed Drain PumpsThese pumps is required API 674 standard but using API 675 datasheet form. HSTD It's better if we use API 674 datasheet form here.

DIAPHRAGM PUMP

TLDD Should understand real model of pump.

TLDDnote position of pump skid, and it shall suitable with model.

TLDDnoted that.

Pump Skid completed with Drip pan TLDD noted that.Immersion Heater for Test Separator

Some packages are lack of interface and Vendor Data's incorporation from Instrument Discipline. Thus some connection from Nozzles of Equipment to LG/LT… have conflict and need to be modified at Site.

Package Engineer shall have to be connected to others disciplines and check newest vendor data for incorporation.

Package Engineer shall have responsibility to advise the Dimension QAQC to check all main dimensions and layout drawing which have effect to connection to Piping Discipline and correct before approving for fabrication.

Some equipments have a difference content of name plate between Name Plate Drawing and the one is mounted on equipment. Thus, it effects to close re-instatement, punch list after finishing hydrotest piping system.

Package Engineer shall have responsibility to correct Name Plate Drawing after finishing FAT.

PE shall check carefully preservation procedure and notify the vendor to maintain flange face

Missing Hold down Bolts, Blind Flange, Bolts, Nuts, Gaskets for Vent and spare Nozzles which don't have connection to others. (Note: These items were not capture in the piping bulk MTO, it only belongs to equipment)

PE shall clarify all accessories when doing TBEto avoid missing subsequently.

The vendor updated the crane weight from 48MT to 60MT in nearly completion of Detail Engineering phase.The 12MT increase will impact to the overall platform weight.

At first API 610 standard was used and changed to ASME B73.1 Pump. The datasheet format is different for above Standards.Replacing with new datasheet is time consuming.

The flowrate and Pump Head was updated in datasheet by SG team without informing to VT engineers.

Since VT engineers are involved in this equipment and to vendor data review. All changes to design data should notify to concerned engineers for their awareness.

Vendor supply the flat performance curve for this service. It's difficult for control and dangerous for motor if the head increase immediately

The suction line is 2" with reducer 2"x3" directly connected to pump suction of 3".

In this case, suction line is smaller than pump nozzle, which may result to pump starvation. We noticed this installation but currently still unchanged.

As good engineering practice, suction line shall be equal or larger size with reducer. Follow manufacturers recommendation.

size and weight of pump are much larger than the model that we design in PDMS

the design of Pump skid meets with pump weight and provides all data for Open Drain Tank manufacturer to connect (in this case, pump skid is placed on the top of tank)

Nitrogen charging kit shall be supplied as special tool for dampener.

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HSTD Good communication.

Mechanical Handling

HSTD Good coordination between disciplines

HSTD Update PDMS model promptly upon received vendor information

Remove the monorail, Use crane instead of monorail

Tank

HSTD

HSTD

The Chemical Storage tank does not bolted in the left and right side HSTD The tank shall be bolted aroundThe lifting lugs is welded on the roof while the Open Drain Tank's is welded on the shell HSTD Weld the lifting lug on the shell but Vendor did not agree.

HSTD

Clarify and scrutinize bids during TBC.Utility Gas Cooler

HSTD

HSTD

Pig Launcher/Receiver

The code apply for design is not confirmed the requirement from VR HSTD Note, and attend when prepare the datasheet for another project

HSTD To follow the Insulation Specifications.

Test Separator Vessel

It was informed that the area for immersion heater is tight with possible obstruction to Piping, Structural bracing, Panel and hand railing.With several follow-up until such items (panel, piping etc.) already setup on that location. Then vendor issued GA drawings with length cannot fit due to obstructions.

In this case, SG decided to reduce the length and the KW rating of heater of one heater which may result to uneven heating.

The preferred location for lifting items ( lugs, beam clamps etc.) are already with overhead piping, pipe support and cable trays which causes obstruction.

In this case, to facilitate the mechanical handling equipments inter-discipline coordination is necessary.

It was informed to update PDMS model for Pedestal Crane due to visible obstruction at crane ladder & maindeck handrailing. This was left un-changed until lately it was recognized that the interference requires maindeck extension.

In HST, use the monorail trolley hoist for drop down the pigging tool and heavy Valve even though The Pedesal Crane can reacher

The elevation of Open Drain Tank was incorrect in the Vendor Data & PDMS Model against Structural Drawings.

To check alignment of relevant drawings, documents, PDMS models and current vendor data.

The Chemical Storage tank did not have nozzles support under the bottom.Manhole did not use the straddle bolts

Need to have support type for nozzles under the bottom of tank.The Manhole must use the straddle bolts

Rectangular tanks are not provided by Vendor with roof perimeter stiffeners. Roof stiffeners shall be provided in tanks per good engineering practice, these should be clarified with Vendor during TBC..

The HSD Utility Gas Cooler design and location was discussed and not finalized for long time. Natural Air Gas Cooler type location is adjacent to walkway and on Hazardous Area.

Study of equipment design should be done in earlier phase of the project. Hot surface heat transfer equipments should locate outside the hazardous area as possible.

Focus on equipment design at earlier stage of project considering safety & fit-for-purpose study.

The required material of this service is corrosion resistance and can work at 128 oC

At first the SS was selected but the maximum temperature is 60 oC only. Carbon Steel could work upto 150 oC but it's corroded in salinity environment. Therefore, Duplex Stainless Steel SS 31803 was the best choice with non corrosion and maximum temperature 140 oC (material piping specification)

We noticed the personnel protection insulations are not provided for Production Launcher which is operating up to 128degC as per datasheet and vendor drawing.

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HSTD

CLOSED DRAIN VESSEL

TLDD

TLDDexternal corrosion of CDV can calculate 1mm

TLDD

we shall use the latest standard in this case

TLDDwe must carefully review the drawing, and note that.

We noticed that Sliding Plates of Test separator are not model on PDMS and clarified to lead whose scope, able to determine the dimension and thickness provided so the elevation of equipment and its nozzles can be fixed.

Later the sliding plates are informed to be provide by Structural.

In practice, sliding plate sets are provided by Vessel Vendor, since vendor are more aware of the loads, know the sliding plate material considered on saddle design, friction factor, allowable expansion and to provide correct sizes for sliding plate.

Close heater drain vessel does not have enough space to remove for maintenance and repair, because of affect the space around the device as the column structure.(Closed drain vessel)

Should have experience in 3D models, when we design, we need to understand principles of operation and maintenance of equipment to fit the space allocated.

External corrosion of closed drain vessel, if CDV have insulation, corrosion of CDV can include internal and external corrosion.

we need to note about material of heater that complied with NACE or not?In the later NACE standard (2000), incoloy 800 is compiled comply.But NACE standard (2003), incoloy 800 is compiled comply. Only incolloy 825 is complied.

Insulation support ring for these vertical vessels are not indicate in GA drawing at the bottom of vessels, so we can't insulate.

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Documents

Working_Key Technical Issue for Equipment Packages - 28-Jul-12