Nick Serpentzis, Fluor
-
Upload
informa-australia -
Category
Technology
-
view
344 -
download
3
Transcript of Nick Serpentzis, Fluor
Iron Ore Beneficiation Africa Conference
Lessons Learnt from Iron Ore DSO and Other Projects that will enhance opportunities for Iron Ore Beneficiation in Africa17 & 18 March 2014Nick Serpentzis Project Manager & Engineering Manager
Agenda
Lean execution – definition, principles and measure
Modularisation – What is modularisation? Reason’s for modularisation, and an example video
GV20130655001.pptx2
Definition – How do we define LEAN?
Definition of Lean –fit for purpose, trim, lowest Capex, fastest delivery etc
but not compromising plant throughput, operating costs, environmental,
community or safety
Accept that there will be trades off’s with ideal design, reliability,
accessibility and items may need to be improved after plant begins to
operate via mod squad or small projects in early production years.
Definition of LEAN engineering, procurement, construction management
are on following slides.
3
LEAN Engineering
Fit-for-purpose design (no gold plating)
Select equipment for design duty only (no or limited future capacity), no
redundancy, no duty standby equipment and minimal process flexibility
Seek alternative access to equipment without compromise to safety by
using EWPs, scaffolding and mobile cranes
Consider running pipes on sleepers rather than pipe racks where
practical to reduce quantity of steel pipe racks
Rationalise equipment where practical
Re-use equipment previously selected from other projects e.g. project
‘X’ mill could be a good fit for project ‘Y’
4
LEAN Engineering
Re-use area arrangement concepts previously used from other projects
e.g. primary crushing station on project ‘X’ could be a good fit
Use Fluor standards and specifications and not a combination of client
and Fluor’s
Minimise changes (not broken don’t fix it)
Freeze flowsheets and other key documents at study phase
Selective use of modularisation principals for cost savings where
practical and cost effective (identified during study phase)
Use of detailed 3D modeling for design development, review, shop
detailing assistance and construction assistance
5
LEAN Engineering (continued)
Consider workshare with low cost execution centres (for repetitive
related drafting activities)
"Hands On" Fluor managers and lead engineers
Once a team members deliverables are complete try to demobilize
individual off the project
Experience lean client team
6
LEAN Procurement
Agree on LEAN procurement procedures with client – clear and agreed procedures for award
Consider use of existing preferred vendors from either Fluor or client lists
Prequalify suppliers and limit number of bidders per package; hence bid list short (no more than 3)
Short bidding period (for small to medium equipment)
Sole source where practical (low cost and small packages)
Early engagement of potential suppliers so that facilities are suitably designed particularly long lead items
Don't sweat the details – get the big kit right and let the detailed design address small issues
7
LEAN Procurement (continued)
Cost effective steel and pipe sourcing
Cost effective manufacturing
China sourcing for equipment and fabrication
Use vendor standards a lot more – design from their catalogues
Less QC on lower risk packages
Use criticality rating system and only ask appropriate level QA/QC depending on criticality rating
Review potential of EPC packages (ideally ones with few interfaces)
8
LEAN Construction
Proven construction manager
Lean experienced (expat) team
Modularisation (where practical)
Complete bulk earthworks and major concrete works during dry season
Clear procedures for award and variations
Clear approval and decision making – not by committee
Sensible roster to keep team motivated and fresh
Use of skilled low cost expat labour (need to be compliant with in-country regulations)
9
LEAN Construction (continued)
Have a plan to live with some site rework to keep the fabricated
materials moving to the site and avoid EOT (extension of time) claims
from contractors
Don’t go with the cheapest constructor:
• Choose competent "reasonable" priced and companies that will make
your project a priority
• Will end up with lean construction in the field in the long term
Highly visible schedule and objectives for short and medium term
targets
10
LEAN Management
Aligned with client on goals, scope and execution
Don’t change execution strategy during execution phase
Don’t change key people on project both client and EPCM/EPC
Use experience management team members
Single project procedures and standards:
• Not partially Fluor’s or Client’s – just Fluor’s
Lean client team (no need to duplicate EPCM team organisation)
Clear approvals system
Permits and approvals in place before mobilisation of construction
Flatter organisation chart
11
LEAN Management (continued)
Simplified reporting:
• Progress reporting, scheduling, etc.,
• Don’t double up Fluor and client reporting – one only
Reduced overhead people where practical
Proper engagement of local authorities and community to ensure no problems or delays down the track
Minimise involvement of client in “detail” design process
Pick an energized management team on EPCM and client teams
Set-up a client and EPCM team combined office and mix up the discipline seating to break down the silos (where practical)
Define roles and responsibilities of key stake holders clearly and in writing
12
SUMMARY FOR LEAN SUCCESS
Alignment with client
Lean client team
Experienced Fluor team
Minimal client changes and client to allow autonomy for ‘detailed design’ phase deliverables
Regular face to face communication (video conferencing or literally face to face)
Fix flow sheets and other key engineering documents before detailed engineering
Single project procedures and tools
Shifting detailed design to fabricators, vendors, etc. wherever practical
Reuse arrangements and equipment from previous projects and rationalise wherever practical
Modularize sections of plant wherever practical
More construction involvement with engineering and more engineering involvement with construction
Fast tract procurement award procedures in place.
13
SUMMARY FOR LEAN SUCCESS (continued)
Fast tract contract procedures in place
Low cost sourcing for bulks and procurement. Investigate methods of allowing shorter delivery times so that materials can be pulled from farther up the supply chain
Avoid wastage, that is, anything not required for delivering value is discarded. This includes defects, overproduction, unnecessary detail, completed work that changed, mismatched deliverables that have either more or less than what is required, double handling or processing, employees waiting for anything and uncompleted work
Value is generated when customer capabilities are expanded, creating new needs and purposes, and when the facility better fulfills the purposes of customers/producers and demands of other stakeholders
Control level scheduling is coordinated by the controls manager and includes key participation by the material manager and field engineering in addition to construction supervision
Fewer site contractors
Integrate site teams wherever practical e.g. one commissioning manager
14
Modularisation
What is Modularisation?
The Reason for Modularisation
1st Generation Modules in the Pilbara
2nd Generation Modules in the Pilbara
Video example
Conclusions and Recommendations
15
What is Modularisation?
“What is?”
• Modularisation is an execution approach for design, procurement, contracting and construction that shifts construction hours away from the site
• Assemblies of process plant components
• Assembled at one location (fabricator) and transported to another (jobsite)
• Made up of structure, equipment, piping, electrical, and instrumentation
• Made in a variety of sizes
16
Prefabrication Preassembly
Process Modules Offsite Fabrication
Why Modularise ?
Project drivers for modularisation (pre-assembly, configuration, and fabrication location)
• Safer controlled construction –avoids onsite work at heights and temporary handrails, and utilises fab yard overhead craneage, transporters
• Reduce (unproductive) work hours onsite and reduce camp size
• Value – grating and handrail can be incorporated, platework, liners, and piping can be included in assembly
• Schedule benefits – parallel activities with earthworks/concrete and offsite fabrication
• Labour availability
• Risk management
17
Why Modularise ?
Project considerations
• Schedule acceleration requirement
• Engineering design safety factors
• Need early vendor design information
• Design software for engineering and shop drawings
• Transportation to remote locations
• Skilled labor shortages and/or low labor productivity
• Industrial Relations challenges
• HSE challenges
• Risk mitigation: final cost and schedule certainty
Recent mmodularisation project results
• Allowed for more productive work in shop environment from experienced craft (almost 2:1)
• Reduced field workforce, congestion, travel time, remote location impacts, overtime, and created more work fronts
• Facilitated more ground level work, less preparation, and scaffolding
• Broke job into smaller, more manageable pieces
• Facilitated less dependency on weather, remoteness, or site conditions
• Reduced strain on the availability of experienced site craft and supervision
18
1st Generation Modules in the Pilbara
19
2nd Generation Modules
Key Lessons Learned(1st Generation to 2nd Generation)
More structures could/should be modularised – stair towers, transfer stations, and train load out facility
Screening building screen support Modules, bins, and hopper Modules worked well – replicate
Maximum of 4 lift points better suited fab yard, ship, and site crane/lifting requirements
Use of lifting trunnions where possible – safer/easier than lifting lugs and shackles
21
Key Lessons and Differences (1st Generation to 2nd Generation)
Distance Port Hedland to Site = 350 kilometres (1st Generation)
Distance Port Hedland to Site = 500 kilometres (2nd Generation)
More structures modularised – stair towers, transfer stations, and train load out facility. Max Module weight kept to approximately 200 tonnes due to increased distance and uncertainty of bridge limits during design. Decreased bridge inspection requirements, faster convoys.
Screening building screen support Modules, bins, and hopper Modules worked well – replicated (3 PS Screen Support Modules installed in 1 day).
2nd Generation – Modularisation of Stockyard Transfer Stations proved very effective for site install and access (4 Modules installed in 3 days).
Engaged Chinese Fabricator with more “Offshore” Modularisation experience and better safety culture (Australian scaffold standard essential).
22
Shop Detailing – Strategy from Lessons Learned on 1st Generation
The Chinese fabrication facilities can utilise their own in-house shop detailing capability however they will not be familiar with WA and other associated standards, especially mechanical platework detailing, and would require extensive in-house supervision. This issue was experienced on 1st Generation.
Execution strategy was for shop detailing undertaken by WA contractor, and issued directly to the nominated fabricator. Providing shop detail drawings by Perth based shop detailers, allows schedule gains to engineering progress by the early release of drawings.
Detailing of grillage was effectively completed by Chinese Fabricator –simple detailing.
23
Summary of Fabrication Strategy
China Based Fabrication
• Drivers No mechanical or electrical
equipment to be shipped overseas for fit out of Modules
Remove work hours offsite Reduced cost (improved value) and
improved schedule Larger transport envelope. EPCM efforts to be concentrated in
one location and maintain a level of tonnages that will be attractive to the larger fabrication workshops
• Scope Modularisation of inflow, OHP, and
outflow building steelwork Shuttle trusses and GTU drive
towers, transfer stations, and TLO bins
Australian Based Fabrication
• Drivers Install equipment – pulleys, idlers,
etc. Optimise local fabrication content
(IR local content) Locally fabricate and deliver early
steel to site to enable early mobilisation of SMP contractor
• Scope Conveyor steelwork COS hoppers and chutes Dust collection structures. Train load out smart Module (PAM)
24
Total Tonnes = 15,000 Total Tonnes = 5,200
Offshore versus Onshore Fabrication and Pre-assembly of Modules/Trusses
Fabrication, pre-assembly, shipping, and transport to site
• Offshore fabrication = 15,300 tonnes
• Onshore fabrication = 5,296 tonnes
Schedule comparison – tonnes per month from award to completion in fab yard
• Offshore fabrication output 850% more tonnes per month compared to
onshore fabrication
25
Modularisation – Safety
Key requirement in selection process/criteria for fab yards as well as tender presentations and evaluations.
Almost 3.25 million work hours were recorded on the Offshore Fabrication project, with no lost time injury and 2 first aid cases
Safety culture during the life of the project changed due to supervision and the introduction of the hazard card system
Hazard cards – encouraged increased management focus on close out of action items
26
Traffic Management Plan – Overall Philosophy
Objective was to minimise police and pilot resources and to reduce the number of disruptions
Night time movements down Great Northern Highway to minimise community impact
MRWA approval was required, requested, and granted for Project
27
Night Time Movements Study
A report that quantitatively analysed the impact of night time movements of oversize load operations between Port Hedland and the mine site compared to day time was commissioned
30 kilometres/hour average speed –9:00 A.M. Port Hedland departure:
• A scenario in which oversize load operations are conducted across three days. Two campsites are utilised in route. Operations commence at 09:00 on each day.
30 kilometres/hour Average Speed –9:00 P.M. PH departure:
• As above, except that operations commence at 21:00 on each day.
As illustrated in the figure to the right, switching to night time operations results in a 91% reduction in the number of light vehicles delayed, and a 76% reduction in the number of heavy vehicles delayed. Total delay, as quantified by vehicle hours expected to reduce by 85%.
Scenario
9 A.M. 9 P.M. Change
Vehicles
Delayed
Light 454 39 -91%
Heavy 348 84 -76%
Total Delay 269 hours 39 hours -85%
28
0
50
100
150
200
250
300
Ho
urs
Total Delay
0
200
400
600
800
1000
Ve
hic
les
Vehicles Delayed
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
9AM:Heavy 9AM:Light 9PM:Heavy 9PM:Light
Divisible Loads – Optimisation
Approximately 19 off loads (stacked flat packs)
• 70% reduction of police
escorts
• 70% reduction of road
closures for passing
Approximately 63 off loads (disassembled flat packs)
• Unachievable police
escort requests
• Significant other road user
interface issues
29
Transport with Approval for Night Time Moves and More Than 2 Loads/Convoy
Night time Module movements – 3 nights travel to site rolling road block
136 Modules moved over 27 night time convoys
Total = 81 nights of rolling road blocks
30
Transport Without Approval for Night Time Moves and Greater Than 2 Modules per Convoy
Day time travel (refer impact on traffic on GNH) 3 days
136 Modules would have been moved more than 68 convoys
Resulting in total = 204 days of rolling road blocks, compared to 81 nights
31
Transport Envelope from Port Hedland for Offshore Fab
32
Transport Envelope from Perth for Onshore Fab
33
Incentive for using Freight Forwarder –Module Shipping and Transport
Total Transport Solution – Door-to-door solution i.e. ex-China organise origin transportation/export clearance/marine warranty surveying/pre AQIS compliance/sea freight/customs clearance/ discharge/cranage/haulage to site and offloading at site
Cost Effective – a multinational freight forwarder, with the ability to negotiate in the market place with shipping companies, airlines, and heavy haulage without sole sourcing
3 Site SMP install contracts meant site was the obvious interface for Module handover
34
Project PhotosCritical Path Ship 7 – Product Screen Support Modules
35
Project PhotosCritical Path Ship 7 – Product Screen Support Modules
36
Modular Construction Recommendations
• The decision to modularise is a program execution decision NOT one that is made in construction
• To be successful it is a detailed process of --- What, When, How, and Why --- to modularise
• Need a commitment to move engineering forward to support the decision
• Need a commitment from the owner’s approval process to support all earlier execution requirements
• Understanding of the early work sequences must be built into the fabricator's organisation
• Fabricator selection process provides a clear understanding of the fabricator's internal work processes and sequences. Shop drawings, nesting plans, weld maps, QC documents, and erection mark drawings
• Ensure that engineering requirements matches the material grades and component configurations available within the fabricators market
• Designing with rolled sections produced within that country
• Have the original engineering drawings translated into the local language
• Ensure Engineering Platform matches the fabricator’s
• An advantage to Module Fabrication in a major shop is the ability to work double or triple shifts, coupled with a larger permanent workforce
37
Modular Construction Recommendations
Ensure route survey and transport corridors are understood
Detailed planning for Module moves
Understand the critical path
Recognise that Risk exists and manage that risk
It’s a cultural change
Modularisation can accelerate schedule and firms up cost certainty
Modularisation can deliver cost savings, but expectations must be tempered by shipping costs
Modularisation can lead to higher quality
3rd Generation – “Smart Module” Maximisation
Use someone who has done it before – make use of the “lessons learned”
38
Presentation End
Questions?
39