arbeidsmiljø i prosjekt hts 15.03.2010 – generell yrkeshygiene – evu - ntnu systematical...

Arbeidsmiljø i prosjekt HTS 15.03.2010 – Generell Yrkeshygiene – EVU - NTNU

Systematical follow-up of WE in new building and modifications

(Norwegian Oil and Gas)

NORSOK S-002


Agenda• Norwegian O&G regulation (see separate presentation)

• Requirements for WE analyses in Norsok S-002

• Systematical follow-up of WE in projects– Working environmental program– Activity plan– Examples of studies

• Who to implement the NORSOK WE requirement in your project – when and where:

– Knowledge requirements – Involvment of other disiplines – Worker involvment


Your (the projects) WE philosopy


Comment No 1: Chapter 2, Page 5, last paragraph Nosok s-002 is described to constitute of only prescriptive requirements.

The standards constitute both prescriptive and goal-oriented requirements. The document fails in describing how the projects shall address and implements the goal oriented requirements in the projects.


Comment No 2: Chapter 3, Page 6

The activities described in Norsok s-002 is described in chapter 3 (and the following chapters) as list of activities.

The systematically follow-up of WE according to PSA and NORSOK requirements require an interaction between the activities – they are not a list of proceeding activities.

Systematic management and follow-up of working environment in design and

new-building

• WE program– Procedures and work instructions– Competence– Document list– Verification plan

• WE design basis– Acceptance criteria– WEAL– Manning and organization– Experience transfer

• WE analyses

• Follow-up / Verification of design requirements

– Working environment design reviews– Working environment inspections

Decomposition of requirements


Comment No 3: CompetenceThe NORSOK standard require the WE competence and resources to be stated in an early stage.

Resources allocated to a typical development project (FEED and detailed engineering):

WE resources design teamTechnical working environment, ergonomics (full time)Human Factors (full time)Acoustics ( full time)+ other specialists

CompanyTechnical working environment (full time)Human Factors (full time)Acoustics (part time)Ergonomist (part time)


NORSOK S-002 gives an example of WE analyses and when they preferable should be conducted in a normal project

A so-called ”fast track” project might impose special issues – this is not considerate in the document.

The interaction between the activities are not considered.


Managing and follow-up of WE in design and new-buildings are a continues process that could not be reduced to single work shop activities.

The analyses and activities listed needs carefully planning, information gathering, expert analyses, discussions and interactions with all parties (designer, worker representatives, discipline leaders, Company, PSA etc.). The suggested work shops are to be regarded as verification activities – not as the main activity.


Work shops are described as the major way of working.

Managing and follow-up of WE in design and new-buildings are a continues process that could not be reduced to single work shop activities.

The analyses and activities listed needs carefully planning, information gathering, expert analyses, discussions and interactions with all parties (designer, worker representatives, discipline leaders, Company, PSA etc.). The suggested work shops are to be regarded as verification activities – not as the main activity.


Working Environment Programme



• A WE programme shall be established for every project phase.

• The WE programme may be a separate document or integrated into the project’s HSE programme, and shall be linked to the project execution plan.



• The WE programme shall – define the project’s WE objectives– define risk acceptance criteria for

occupational safety, human error and health risks

– State references to applicable WE requirements and procedures

– describe means of ensuring the statutory worker participation in the design process



• The WE programme shall include an activity plan stipulating the responsibilities, schedule and deliverables for the various activities to manage WE in the design process.

• In particular, the WE analyses shall be planned with due consideration of the needs for timely input to design and procurement, and needs for verification and documentation.

• The WE activity plan shall be maintained to provide status regarding execution and documentation of the various WE management activities.



• Deviations from WE requirements shall be subject to the project’s nonconformity procedures.

• A follow-up system shall be established that enables proper documentation, handling, follow-up and closeout of agreed actions and recommendations from the various WE studies and analysis in the project. The WE follow-up system shall be integrated in the overall HSE management system in the project.



• To document status regarding implementation of WE requirements, Working Environment Area Charts (WEAC’s) shall be issued at predefined project milestones

• In principle, a WEAC shall be prepared for each room and area on the installation.


WE activity plan


Working Environment Activity Plan

• This Working Environment Activity Plan (WE Activity Plan) provides information on WE activities and documentation to be performed or issued by xxx during execution of xxx EPCH Project.

• This activity plan supports project /1/ Working Environment Program, doc. no. xxx and is established for survey and status reporting between Company and Contractor throughout Project



• The plan contains planning and status information provided in the following tables:

• Table 1: WE documentation and analyses • Table 2: WE Area design reviews• Table 3: Specific WE reviews and analyses• Table 4: Human Factor activities and analysis• Table 5: WE Packages Follow-Up • Table 6: Familiarisation of WE Design Basis



• WE Program WE Activity Plan• WE Design Specification • HSE Check List for Equipment

and Packages • Working Environment Area Limits

(WEALs) • HSE Data Sheets• Chemical Health Risk Assessment

(CHRA) • Weather Protection Study Report• Constructability Analysis WEIA

report• Working Environment Area Charts

(WEACs)• Working Environment Summary

Report• Illumination Layout Report

• Coarse Noise Control Report• Noise Prediction Report• Sound Absorption Requirements

• HUMAN FACTORS:See Table 4 below

• CLIENT DOCUMENTS: Organisation and Manning Study including Psychosocial Analysis

• Psychosocial Preconditions report, (Demand Resource Analysis (DRA)


Working Environment Activity Plan HF

• Rapporter• CCR Specification• Functional Analysis of CCR &

Collaboration Room• Task & Error Analysis of CCR

& Collaboration room operations

• Workload Analysis of CCR & Collaboration room operations

• Communication Analysis of CCR & Collaboration Room

• Situation Analysis of xxx SAS & safety system interfaces

• Human Factors Analysis Report (Summary report)

• ACTIVITIES• HF related to integrated

operations • HF related to SAS design &

development • HF Group meetings• Verification & Validation

activates for Control Centre• Miscel. meeting/input


Activity Plan 3D layout Review

• DECK (Utility, Process, Riser & Flare modules);

• Coarse Layout and WE Design Review

• UTILITY MODULE; • Detailed Layout & WE Design

Review

• PROCESS MODULE;• Detailed Layout & WE Design

Review

• RISER MODULE; • Detailed Layout & WE Design

Review – • FLARE• Detailed Layout & WE Design

Review

• WORKSHOPS; • Detailed Layout & WE Design

Review

• LABORATORY• Detailed Layout & WE Design

Review

• HULL:• HULL Coarse Layout & WE

Design Review –

• Detailed Layout & WE Design Review -


Activity Plan Specific analysis and reviews

• Coarse Chemical Health Risk Assessment (Coarse CHRA) of DECK and HULL

• Detailed Chemical HRA; CHEMICAL SAMPLING ARRANGEMENTS

• Detailed Chemical HRA;MEG & TEG SYSTEMS

• Detailed Chemical HRA; PIGGING OPERATIONS

• Detailed Chemical HRA; CHEMICAL INJECTION SYSTEMS

• WE Design Review;WIND AND WEATHER PROTECTION

• WE Design Review;ACCESS TO EQUIPMENT, VALVES AND INSTRUMENTS

• WE Design Review;ACCESS TO FLOODLIGHTS, LIGHT FIXTURES, F&G, TELECOM

• ERGONOMIC ANALYSIS OF MAJOR MANUAL WORK


WE Package Follow-Up BE: Bid Evaluation DR: Design ReviewPI/SI: Package/Site Inspection Noise: Includes noise activity

• ER252 GAS COMPRESSORS(CENTRIFUGAL) – High priority•BE DR PI Noise

•ER254 PROCESS & UTILITY PUMP – Medium priority•BE Noise

•ER255 EMERGENCY & ESSENTIAL DIESEL GENERATOR – High priority•BE DR PI Noise

•ER256 NITROGEN COMPRESSOR, AIR COMPRESSORS – Medium priority•BE Noise


Document Title: HSE Check List for Packages and Equipment

(NORSOK S-002, S-003 & S-005)• 1 INTRODUCTION• 2 ABBREVIATIONS• 3 SURVEY OF EQUIPMENT AND HAZARDS• 3.1 Checklist 1 - LISTING OF EQUIPMENT• 3.2 Checklist 2 – GENERAL - SUMMARY OF HAZARDS AND RISKS• 4 ENVIRONMENTAL CARE (EC)• 4.1 Checklist 3 – PLANNED EMISSIONS AND DISCHARGES (NORSOK S-003)• 4.2 Checklist 4 – EXPECTED WASTE GENERATION (NORSOK S-003)• 5 WORKING ENVIRONMENT (WE)• 5.1 WE Checklists• 5.2 Checklist 5 - WE DOCUMENTATION RESPONSIBILITIES (TYPICAL)• 5.3 Checklist 6 - HAZARD IDENTIFICATION AND JOB HAZARD ANALYSIS

(JHA)• 5.4 Checklist 7 - WE RISK ASSESSMENT (S-005 Annex E)• 5.5 Checklist 8 - CHEMICAL INVENTORY (S-005 Annex F)• 5.6 Checklist 9 - WE DESIGN REVIEW (S-005 Annex G)• 5.7 Checklist 10: RISK ASSESSMENT FOR HEADROOM 1900-2100 MM AND

ACCESS WAY WIDTH 500-600 MM (ISO 14122-2)• 6 REFERENCES• ATTACHMENT 1: WE DESIGN BASIS (HIERARCHIC LISTING)


WEATHER PROTECTION STUDY• TABLE OF CONTENTS• 1. INTRODUCTION• 1.1. Purpose• 1.2. Scope• 1.3. Conditions• 2. ABBREVIATIONS AND DEFINITIONS• 2.1. Abbreviations• 3. WIND CHILL REQUIREMENTS• 3.1. Gjøa Working Environment Program• 3.2. Petroleum Safety Authorities (PSA) requirements• 3.3. STATOIL requirements• 3.4. NORSOK S-002 requirements• 4. WIND CHILL CALCULATIONS• 5. WEATHER PROTECTION EVALUATIONS• 5.1. Wind chill effects on personnel• 5.2. Evaluations of need for wind protection• 6. CONCLUSION AND RECOMMENDATIONS• 6.1. Recommendations• 7. REFERENCES• 8. ATTACHMENT 1: WIND CHILL CALCULATIONS• 9. ATTACHMENT 2: WIND PROTECTION WALLS (MARKED UP PLOT PLANS)


WEATHER PROTECTION STUDY

• Wind Chill Index (WCI) has been calculated and evaluated for typical work places on Topsides by a methodology advised in NORSOK S-002.

• First local wind velocities have been calculated using Computational Fluid Dynacics (CFD) code FLUENT on a platform 3D-model inclusive first proposal for wind walls.

• Then the results of the wind calculations have been combined with Gjøa field temperature data.

• The Wind Chill Index average is calculated for a year and for the seven coldest months. See Attachment 1.



• Based upon the WCI calculations and operational work tasks evaluations in this report, 3 m high (40 % porosity) wind walls should be included in the following areas. See marked-up plot plans in Attachment 2.

• Lower Deck : Wind walls to be included on North and South at periphery of central part of platform

• Tween Deck : Wind protection not required• Main Deck : Wind walls to be included in central process

module North and South at platform periphery and for pig launcher area at South/East

• Upper Deck : Wind walls to be included on all periphery of the area.

• Staircases : Wind walls to be included for all open staircases at periphery of platform.

• At a later phase in the Project the WCI calculations should be updated to include of the modified wind walls proposed in this report and the wind walls arrangement re-evaluated.


WEATHER PROTECTION STUDYCalc.point Area WCI > 1000 W/m2

[% in time] Dominating wind direction

giving contribution to WCI > 1000 W/m2

Annual January Annual January

main_wci3 0.9 3.2 - SE, SW

main_wci4 0.5 0.5 - -

main_wci5

Separator area

6.7 20.5 SW, S S, SW

main_wci6 MEG regeneration 2.3 8.9 SW, S SW, S

main_wci7 Export compr.scrubber

0.3 0.3 - -

main_wci8 Recompr. suction scrubber

0.2 0.7 - -

main_wci9 Fuel gas area 0.7 2.3 - SE

main_wci10 Flare area 2.3 5.6 SE SE, N

main_wci11 Pig area 4.4 8.5 NE, SE SE, NE, N



Figure 6‑5: WCI at Main Deck with wind velocity 7.5 m/s from south, ambient temperature 2.5°C at 1.5m above deck. Colour scale: 1200<WCI<400 W/m2 (Blue is cold and red is warm)


Noise study report• 1. INTRODUCTION• 1.1. Purpose• 1.2. Scope• 1.3. Conditions• 2. ABBREVIATIONS AND DEFINITIONS• 2.1. Abbreviations• 2.2. Definitions• 3. NOISE EVALUATIONS• 3.1. Noise Strategy• 3.2. Design Criteria• 3.3. Equipment Noise Control• 3.4. Other Noise Control Measures• 3.5. Living Quarter• 3.6. Hull Areas• 4. ESTIMATES OF AREA NOISE LEVELS• 5. DEVIATIONS / TECHNICAL CLARIFICATIONS• 6. CONCLUSION AND RECOMMENDATIONS• 6.1. Conclusion• 6.2. Recommendations• 7. REFERENCES• ATTACHMENT 1 – AREA NOISE AND VIBRATION LIMITS• ATTACHMENT 2 – ESTIMATED AREA NOISE LEVELS• ATTACHMENT 3 – SOME ACOUSTIC TERMS

Arbeidsmiljø i prosjekt HTS 15.03.2010 – Generell Yrkeshygiene – EVU - NTNU09.02.2007 www.ohs.no

Noise study report• Noise Strategy

– The Installation shall have an acceptable noise level within the authority requirements. This implies that as-built measurements, performed under platform design conditions, shall demonstrate that personnel noise exposure requirements are within statutory requirements given in PSA/SFT/NSHD – The Facilities Regulations, § 22, and that area noise levels as a minimum are within the limits as given in NORSOK S-002, rev. 04. For process and utility areas shall 85 dBA apply as noise limit, and an internal deviation request is needed if increased up to 90 dBA.

– Use of ALARP-principle. Where relevant, the selection of low noise equipment shall be proritized utilizing the ALARP-principle.


Noise study report– Project noise control activities shall be in accordance with

NORSOK S-002. Noise control is a multi-discipline activity with line responsibility and shall be performed in accordance with Annex H of NORSOK S-002, rev. 04. Noise control engineer(s) shall be part of the project organisation throughout the project. Noise control shall be included in all project phases, including engineering, fabrication, commissioning and start-up of production. Relevant design changes shall be checked with respect to possible noise impact. The status for the noise control activities shall be included in HSE meetings.

– Personnel noise exposure evaluations to be performed Personnel noise exposure evaluations shall be performed as a parallel activity to the work to fulfil area noise requirements. The calculations shall be updated as a part of the noise predictions. Company will provide relevant personnel matrix as basis for noise exposure evaluations.


Noise study report– Procurement of packages shall be followed-up. Requirements to

equipment noise control and noise limits shall be included in inquiry and Purchase Order documentation. All main equipment shall be followed up including witnessing the performance of noise test as part of Factory Acceptance Test. A cost-effective equipment noise control design shall be aimed for.


Noise study report

Table 3.1 Equipment Noise Level Limits – Long Lead Tagged Equipment

Package

Top Tag no Description Sound Limit, dBA

23KZ001 1st and 2nd stage Compressor Package Lw = 100

Lp = 80

23KZ004 LP/3rd stage Compression Package Lw = 100

Lp = 80

ER 252

GAS COMPRESSORS

23CS050 3rdstage/LP Compressor Lube Oil Console Lw = 95

Lp = 77

Lp = average sound pressure level in dB (ref. 20 Pa) at one meter distance, free-field conditions over a reflecting planeLw = sound power level in dB (ref. 1 pico W)


Noise study reportTable 3.2 Actual Equipment Noise Control Measures – Long Lead Tagged Equipment

Package

Top Tag no Description Possible noise control measures

23KZ001 1st and 2nd stage Compressor Package

Complete acoustic enclosure, skid on vibration isolators

23KZ004 LP/3rd stage Compression Package Complete acoustic enclosure, skid on vibration isolators

23CS050 3rdstage/LP Compressor Lube Oil Console

Low noise motors

27KZ001 Export Compressor Skid Complete acoustic enclosure, skid on vibration isolators

27XX060 Export Compressor Air Intake and Ventilation System

Silencers. Acoustic duct lagging.

27CS050 Export Compressor Lube Oil Console

Low noise motors

27CT011 Hydarulic Start Unit Export Compressor

ER 252

GAS COMPRESSORS

41HW300 Export Compressor Waste Heat Recovery Unit and Exhaust Assembly

Silencers. Acoustic duct lagging.


Noise study report

Q114-04 Emergency generator room

110 80 1) 3 Total limit is 85 dBA when equipmnet is not

running.

Q114-05 Dehumidification unit 85 70 1) 3

Q114-06 Maintenance route N/S 80 70 1) -

Q121-01 Air compressor room 85 70 1) 3

Q122-01 Maintenance route E/W 80 70 1) -

Q122-02 Goods lift (all levels) 80 70 1) -

Q122-03 Hot water heater area 85 70 1) 3

Q122-04 Air lock 80 70 1) -

Attachment 1: Area Noise and Vibration Limits Applying to Gjøa Semi

Noise Level in dBA

Area ID. Area Type 5)

Project Total Limit 3)

HVAC Limit

Vibration Level

Category, NORSOK S-

002 4)

Comments


Noise study reportAttachment 2: Estimated Area Noise Levels – Normal Platform Operating Conditions

TOTAL NOISE LEVEL IN dBA

Area ID. Area Type 1)

LIMIT 2) ESTIMATED

Comments

Q114-04 Emergency generator room

85 / 110 65 - 70 105 – 110 when Emergency Generator is in operation.

Q114-05 Dehumidification unit 85 70 - 75

Q114-06 Maintenance route N/S 80 70 - 75

Q121-01 Air compressor room 85 85

Q122-01 Maintenance route E/W 80 75 - 80

Q122-02 Goods lift (all levels) 80 < 80 Noise level depending of lift type

Q122-03 Hot water heater area 85 80 - 85


Human Factors reports

• CCR Specification

• This report identified the functional design requirements and concept for the xx Control Suite (Central Control Room and adjacent areas) and shall provide the basis for detailed design phase work. The requirements in this document and the requirements given in the law, the applicable regulations, recognised standards and other project requirements together forms the xx CCR requirements.



• Situational Analysis of xxx CCR

• As xxx was to be closely based on yyy it was important to gather operational feedback on how well yyy is functioning in practice. The purpose of this Situational Analysis was to document how the CCR design on yyy is functioning and to ensure that any features working well are reused on xx whilst any that are not are improved in the xx design.



• Functional Analysis of CCR

• The purpose of this document was to identify all the main functions that the xxx control room is responsible for. The main aim of the analysis during the FEED phase was to provide input for the layout of the Central Control Room (CCR) and surrounding area by clarifying the functions that they will be involved in and ensuring that the goals and requirements for these are accounted for in the layout

• The main focus for this report was Functional Analysis. Functional Allocation was not conducted at this stage of the design but shall be done early in Detailed Engineering.



• Communication Analysis of CCR

• The purpose of this document was to identify the main communication links for the xxx Central Control Room.

• The analysis considered communication needs for the main parties within the control room, those in communication with the control room and the frequency and the importance of the communication. Both normal and emergency situations were analysed.



• Task Listing for CCR

• The purpose of this document was to list the main tasks to be performed in the xxx CCR, to provide information for the FEED Phase deliverables.


Human Factors reports• CRIOP 1 of CCR

• The purpose of the CRIOP process was to verify and validate the design of the xxx CCR after the FEED phase work was in accordance with a set of Human Factors requirements given in the CRIOP checklists and also to ensure it meets best practice and complies with project and agreed requirements (international, national and regulatory). This work is seen as a part of requirements in ISO 11064 Part 1 Ergonomic Design of Control Centres Scope.

• The analysis concentrated on the CCRs Layout and Work Environment, as these are the main FEED deliverables. In addition parts of the checklists for Control and Safety Systems that are relevant for FEED Phase deliverables have also been applied.

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