Attachment 1 Engineering Method Statement

EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES (Pipeline scope -Rundown lines, Lean gas Lines & CO2 Injection Lines) Tender No.: LTC/C/NFE/3998/18

ENGINEERING METHOD STATEMENT

06/01/2019

DATE

0

REV. NO.

ISSUED FOR INFORMATION (WITH BID OFFER) REASON FOR REVISION

SPC

NKJ

MHPH

PREP

CHKD.

APPD.

RAMBOLL

RAMBOLL

RAMBOLL

RAMBOLL P.O. BOX 21404, DOHA, QATAR

APPD. CLIENT

EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

TABLE OF CONTENTS 1.0

INTRODUCTION ...................................................................................................... 3

2.0

SCOPE OF WORK ..................................................................................................... 3

3.0

RAMBOLL'S ROLES AND RESPONSIBILITIES ........................................................... 5

4.0

PROJECT EXECUTION STRATEGY ............................................................................. 5

5.0

STANDARD PROCEDURES ........................................................................................ 5

6.0

HSE&Q .................................................................................................................... 5

7.0

RAMBOLL PROJECT MANAGEMENT MODEL .............................................................. 6

7.1

PROJECT MANAGEMENT AND CONTROL SERVICES ..........................................................6

8.0

ENGINEERING APPROACH/EXECUTION PROCESS ................................................... 7

9.0

MOBILISATION OF THE PROJECT/ DESIGN ENGINEERING TEAM ............................ 7

9.1

KICK-OFF MEETING .....................................................................................................8

9.2

BASIC PROJECT MANAGEMENT DOCUMENTS FOR ENGINEERING ......................................8

10.0

DESCIPLINE-WISE ENGINEERING APPROACH......................................................... 8

10.1

SITE SURVEY..............................................................................................................8

10.2

DESIGN BASIS MEMORANDUM .....................................................................................9

10.3

FEED VERIFICATION .................................................................................................. 10

11.0

ENGINEERING EXECUTION.................................................................................... 10

11.1

PROCESS ................................................................................................................. 10

11.2

MECHANICAL ............................................................................................................ 12

11.3

PIPING .................................................................................................................... 12

11.4

PIPELINE ................................................................................................................. 15

11.5

INSTRUMENTATION................................................................................................... 16

11.6

TECHNICAL SAFETY / LOSS PREVENTION ..................................................................... 17

11.7

ELECTRICAL ............................................................................................................. 19

11.8

CIVIL AND STRUCTURAL ............................................................................................ 19

11.9

IT TOOLS & SOFTWARE ............................................................................................. 21

11.10

PROGRESS REVIEW ................................................................................................... 22

11.11

CODES & STANDARDS ............................................................................................... 22

12.0

ENGINEERING DOCUMENT / DRAWING REGISTER and PROJECT SCHEDULE /

PLANNING ........................................................................................................................ 22

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1.0 INTRODUCTION The Method statement is initiated for better planning, organizing, monitoring and controlling the various stages of the Project and to facilitate a clear process / procedure to secure a project effectively and successfully. The purpose of this document is to manage every aspect of the Engineering related to quality, cost, resources, schedule etc. Ramboll Consulting Engineering (RCE) follows its own HSEQ Management System for Health, Safety, and Environment and Quality aspects of the projects. In addition, RCE shall also incorporate the specific requirements of Client for this project. The document is owned, maintained and utilized by RCE Project team members to ensure the successful day to day operational management and control of the Project and quality of the outputs produced. This method statement document defines the procedures and the methods that shall be followed by Ramboll during Detailed Engineering phase, to achieve efficient preparation of good engineering documents and completion of the Engineering as per the schedule while complying with the appropriate Industrial, International and QG standards.

2.0 SCOPE OF WORK The FACILITIES pertaining to EPC-3 includes the following as shown: Product Rundown Lines • Plant and Deodorized Field Condensate (DFC) Rundown Line • Propane and Butane Rundown Line Pipeline Scope is defined in highlighted portion as below.

• Spent Caustic Rundown Line

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

Lean Gas export line The pipeline between from QG Station A4 to Lot W2/W3 – underground pipeline, incl. Pig launcher and Receiver stations.

CO2 export Pipeline The pipeline between the LNG plant (Lot W2/W3 and the CO2 injection well area (Lot W17A) will be stainless steel to mitigate against corrosion for a wet CO2 operation.

Overall view – Route map

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3.0 RAMBOLL'S ROLES AND RESPONSIBILITIES The basis of engineering shall be the SOW, the existing documents/drawings, MOM of Pre bid technical clarification meeting, TBC’s. Ramboll shall Update/Prepare of engineering deliverables required to meet intended purpose of the project.

4.0 PROJECT EXECUTION STRATEGY With more than 200 offices in 22 countries in Middle-east, northern Europe, USA and India, Ramboll’s approach emphasizes local expertise combined with a global knowledge base. Ramboll’ s project execution strategy is governed by the principle of minimizing risks to the project, not just from a health, safety and environmental protection viewpoint, but also from those of project quality and delivery, including project milestones and budget conformity. Ramboll will follow these general principles to ensure the highest quality of project execution: •

Ramboll will assign personnel for the duration of the project in order to ensure continuity and synergies.

•

Ramboll will use the latest technology & approved software for design work.

•

Ramboll will establish and maintain close and transparent cooperation with OEM’s/CLIENT.

•

Ramboll will use QG engineering specifications, international standards and QG’s feedback. This will ensure an efficient project realization and engineering solution which is “Fit for Purpose”.

•

Ramboll attaches great importance to reliability and to the strict observance of contract stipulations and target dates.

5.0 STANDARD PROCEDURES The Ramboll Oil & Gas project management team will use Ramboll standard procedures for administration, cost control and reporting. The Ramboll Project Excellence Life Cycle model is based on generic project management structures with common and established phases with various Decision Gates and Stage gates.

6.0 HSE&Q The project will be executed in full compliance with QG's HSE requirements and QATAR HSE regulations. Ramboll Oil & Gas also operates with an HSEQ system in accordance with ISO 9001, ISO 14001 and OHSAS 18001.

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7.0 RAMBOLL PROJECT MANAGEMENT MODEL Ramboll is experienced in working with different project models; however they are all basically very similar with project stages, decision gates and deliverables. The exact content of the Decision Gate Packages, DGP / Decision Gate deliverables will be defined in the CTR catalogues and in agreement with QG. a) Project execution manual The Ramboll Oil & Gas Project Execution Manual, (PEM), combines the certified HSEQ Procedures, the Lean project tools and the document management system in order to align the working procedures and project execution between our offices. The PEM is in alignment with the RPM and is defined by the following phases: •

Creation and initiation Prequalification Tendering Agreement Planning Execution Project closing

b) LEAN tools Project management can be a complex discipline and we want to give project managers – and project participants – the best possible basis for running the projects. For this purpose we have developed 8 strong tools which are mandatory in all projects. The 8 tools strong project tools are: •

Value creation

•

Risk & opportunity management

•

Stakeholder management

•

Decision management

•

Project kick-off

•

Front Loading

•

Visual planning

•

Project completion

The LEAN tools are accessible for all employees via Ramboll’s intranet. 7.1

PROJECT MANAGEMENT AND CONTROL SERVICES Ramboll shall perform all necessary management and control services for this project in order to meet QG’s requirements as defined in the ITT documentation. Ramboll’s approach to project management has been designed to maximize QG benefits. a) Project Management One of the key factors next to the core engineer competences is the project management. Efficient and open Project management is essential to ensure success on a project like this. The execution principles for the defined phases are aiming at: • Achieve a controlled design development which ensures that design decisions and activities

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are performed in an optimal iteration process. • Obtain an efficient flow of information and ensure that information is available to all users immediately upon release • Achieve realistic measurement of design status, both regarding progress and quality. • Main activities for the project management team are: • Responsible for project planning activities and establishment of the Project Execution Plan (Engineering) and Project Quality Plan (Engineering) • Coordination of all office activities including sub-contractor. • Responsible for actual manning of the project • Follow-up on Project Execution Plan and Project Quality Plan. • Participate and follow-up on regular meetings with QG and the sub-contractor • Responsible for issue of weekly and monthly progress reports • Responsible for document control activities • Responsible for document quality control and reviews. • Internal reporting within Ramboll Oil and Gas. • Ensure coordination between the various teams inside the project and with the subcontractors b) Planning and Reporting The Planning and Reporting is a support function for the Project Management Team to achieve satisfactory control of cost/time/resources for the Project. The Project Manager and Planner will initially create a project ID in the Ramboll systems and define the necessary WBS (Work Breakdown Structure). All activities and tasks shall transfer to Primavera for establishment of a detailed Project Execution Planning Package. The plan includes key tasks, decision-gates and milestones for external input and milestones planned by QG, in accordance with EPC-3, Appendix -E. Establishing and maintaining an MDR (Master Document Register) will ensure a strict control of the revisions of documents during the project execution. During the project execution the planning function will support the Project Management Team by elaboration of bi-weekly and monthly progress reports to follow-up on the project execution plan.

8.0 ENGINEERING APPROACH/EXECUTION PROCESS The execution philosophy to be adopted for this project will be based on a common system long in practice within Ramboll to ensure its successful completion in order to meet the requirements for Safety, Quality and Schedule.

9.0 MOBILISATION OF THE PROJECT/ DESIGN ENGINEERING TEAM Immediately after contract award Ramboll will start the activities related to this project. Among others the following activities take place within the first 2 weeks after contract award: •

Kick-off meeting

•

Familiarize all project team members with the project.

•

Ramboll internal kick-off meeting.

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9.1

•

Issue a detailed program.

•

Issue a detailed list of deliverables / EDDR.

•

Prepare question list about all technical key items (Front Loading)

•

Initiate site visits and data collection.

KICK-OFF MEETING A kick-off meeting with QG, shall take place as soon as possible. During this meeting all procedural matters will be clarified and agreed, including, the following: •

Contacts

•

Correspondence

•

Meeting schedule

•

Reporting requirements

•

Technical key items

•

Information required

•

Site visit

This meeting will also be used to have a first HSE risk assessment with the team to raise the team’s awareness of HSE issues. 9.2

BASIC PROJECT MANAGEMENT DOCUMENTS FOR ENGINEERING Ramboll as a standard procedure will prepare the following project management related documents in the early stages: Project Execution Plan to cover procedures for interface, correspondence, execution plan etc and additionally; •

Organization Chart

•

Health and Safety Plan for Ramboll engineering activities

•

Quality Plan for Ramboll engineering activities

10.0 DISCIPLINE-WISE ENGINEERING APPROACH Document Register: The schedule of documents to be delivered shall be given as part of the Engineering Document & Drawing Register (EDDR)/ Technical Document Register (TDR). Interdisciplinary Work To achieve the project objectives, the engineering activities shall be executed ensuring close cooperation between Civil & Structural, Instrumentation, Mechanical, Piping, Pipe Line and Loss Prevention/Safety in accordance with the project requirements. All the interdisciplinary Documents shall be verified by respective Disciplines before releasing to COMPANY for approval. 10.1 SITE SURVEY Following the Kick-off meeting and collection of relevant documents from COMPANY, the site visit (s) by dedicated discipline Engineers will be conducted. Discipline Engineer shall prepare the Site survey

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methodology and check lists (discipline wise) and carry out site surveys in accordance with COMPANY’s “Procedure for Site Survey”. The scope of the site surveys will include collection and verification of all relevant data, documents and drawings to familiarize with the existing facilities. The scope of the surveys is likely to include, but not be limited to: 1. Familiarization with the existing facilities, their operation and COMPANY codes of practice, systems of work and regulations. 2. Observing / obtaining full details of the facilities and their condition. 3. Verification of all relevant documents and drawings. 4. Observation of the conditions and physical state of the existing systems where applicable. 5. Check the Details of existing Piping, Pipeline, Civil/Structural, Instrumentation 6. Discussion with COMPANY Site personnel. 7. Site Survey Reports will be prepared for comments/review, which includes all findings of the visits, list of documents collected/updated and specific recommendations. Project Manager will forward the request of relevant technical documentation to QG. All necessary, existing drawings, documents related to existing facilities shall be collected, including soft copies where available. Meeting and discussion with QG would be sought, to gain better insight into project background, end user requirements, limitations and necessary interaction required as a result of other ongoing projects which may impact on the design. During site surveys and document retrieval Ramboll will identify tie-in points and interfaces with existing systems and facilities. All personnel shall be fully aware of the safety precautions to be followed and will be equipped with relevant PPE and will have the necessary safety training. The site visits will be documented in a report supported by photo documentation. A document retrieval report if required shall be submitted to COMPANY. 10.2 DESIGN BASIS MEMORANDUM Upon verification of the design information, completion of the Site Survey, and submission of the Work Site Survey Report, Consultant will commence the preparation of the Design Basis Memorandum (DBM) for all sub-projects and submit to QG for review and comment. DBM shall include information on Project design Objectives, basis, specifications and standards and general design conditions. The design basis shall also include operating and control philosophy of system. It shall also discuss the interfaces with other facilities, process requirements, HSE requirements, tie-in details and replacement

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philosophy approach. The constraints and areas of concern to be considered in the design shall be highlighted. The final design basis shall be approved by QG. 10.3 FEED VERIFICATION FEED drawings, documents, calculations, data sheets, etc. provided along with the bid documents by the client shall be verified in line with Detail Engineering SOW and survey findings. In case any inadequacies, errors, changes or potential problems are identified in the FEED documents/reports/ drawings, these will be highlighted in the Technical Query to be issued to QG. Package FEED endorsement by Process Package Vendor, the overall FEED endorsement will be by EPIC Contractor.

11.0 ENGINEERING EXECUTION The discipline engineering shall be performed by a team comprising of a Project Manager, Lead Engineers, Engineers and designers. The Project Manager has the overall responsibility for the project and is the focal point for QG. Discipline Lead Engineers will be responsible for the activities of their respective discipline and sub-projects. The common / general documents are listed below. 1. Design Basis Memorandum 2. Drawing and Document Register 3. Site Survey Report 4. List of long lead items

11.1 PROCESS Ramboll will prepare a list of the perceived missing drawings, documents, and data after the kick-off meeting and the same will be submitted to Company. QG shall arrange to provide at the earliest. All required documents including shall be provided during the start of the project to avoid any schedule delay. It is assumed that all native files of existing drawings/documents/software files required for this project shall be provided by Company. Site survey: Process participation in site survey is not envisaged. A. HIPPS Study Not envisaged pending on TQ clarification. B. Workshops / reviews Process shall participate in the following workshops. • • • •

HAZOP SIL Design Review Model Review Participation

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C. Philosophies/documents The following Philosophies/documents shall be prepared by Process as part of the SOW and submit for the Company approval. Process Deliverables Document Description Mass, Heat and Utility Balance

Included X

Process Flow Diagrams (PFDs)

X

Utility Flow Diagrams (UFDs)

X

Process & Instrumentation Diagrams (P&ID’s)

X

Material Construction Diagram (MCDs)

X

Process Safeguarding Flow Diagram/Scheme (PFSD) Process Design Basis FEED Endorsement Report Hydraulic Calculation (Process/Utilities Line Sizing)

X

Equipment List Equipment Sizing

X X

Utility Summary Process Datasheet

X X

Relief valve sizing calculation Relief valve specification/ datasheets Relief and Blowdown report

X X

Line list Dynamic simulation study for Lean Gas System Transient Analysis for product rundown lines Transient Analysis for Co2

X

Cause and Effect Charts

X X X

X

(X) X

Remarks Included for lean gas system, update to the latest native file from Company for Co2 and product rundown lines. Update to the latest native file from Company. . MicroStation will be the tool used. Update to the latest native file from Company. . MicroStation will be the tool used. For tie-in’s, update to the latest native file from Company. Smartplant P&ID will be the tool used for construction P&ID and for demolition P&ID, MicroStation will be used. FEED material of construction will be used and the same is already clarified in TQ. Identified as early study deliverable. MicroStation will be the tool used. Update to the latest native file from Company. . MicroStation will be the tool used. Identified as early study deliverable Identified as early study deliverable Line size from the FEED study will be used and the same is already clarified in TQ. Identified as early study deliverable for the main process line. Inhouse Spreadsheet will be used for validating the product rundown line size, Co2, Lean gas and other utilities. Process will give input to pig launcher, pig receiver and equipment specification Update to the latest native file from Company Input will be given for equipment, instruments and packages

Relief load of PSV, orifice will be given. No update will be done for Flare Network Model and flare adequacy check. The same is clarified in TQ Transient Analysis is not to be delivered as it is clarified in TQ. Transient Analysis is not to be delivered as it is clarified in TQ. Pending on TQ Clarification. Applicable for Co2 System. OLGA will be used. Third party support will be used for this analysis. Lean gas C&E will be delivered. For Co2 system, C&E is not applicable as it is pipeline scope. For production rundown lines, not to be delivered as it

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is clarified in TQ that ESV and metering is not EPC3 SoW. Not to be delivered and it is clarified in TQ.

Operation & Control philosophy Process simulation HAZOP report incl. close out actions

Not to be delivered and it is clarified in TQ. X

Notes: X - Documents will be delivered (X) - Pending on TQ Clarification 11.2 MECHANICAL To achieve the objectives of the project, the Mechanical engineering activities shall be executed closely with Client in accordance with the requirements specified for this project is based on the following methodology: a) Kick of Meeting: The project kick of meeting with client provides the opportunity to brief about the understanding and requirements of the project which helps to finalise schedule, deliverable and task related to Mechanical Engineering. Mechanical activities are limited to the Engineering Design of Pig Launcher / Pig Receiver. b) Design Basis Memorandum: Mechanical Design Basis input shall be provided to Design basis Memorandum and will be submitted to QG for approval. After obtaining Design Basis Memorandum approval, detail Engineering activity shall start. The documents shall be prepared based on QG specification. c)

•

Mechanical Engineering activities: The following Mechanical deliverables will be prepared. i)

Input to Design basis Memorandum

ii)

Mechanical data sheet for Pug Launcher / Pig Receiver

iii)

Technical specification for Pug Launcher / Pig Receiver

iv)

Material Requisition for Pug Launcher / Pig Receiver

v)

Technical Bid Evaluation for Pug Launcher / Pig Receiver

Procurement assistance: It shall be attempted that the equipment will be procured from QG preferred vendor list. EPC Contractor to coordinate with vendor and to get the Technical proposal for Pig launcher / Pig Receiver. The vendor offers shall be reviewed and TBE shall be prepared. The following activities shall be carried out under Mechanical scope for the procurement of new equipment. i)

Vendor offers Review and Technical Queries

ii)

Coordination with Vendor

iii)

Technical Bid Evaluation

iv)

VDRL Review

11.3 PIPING A. Scope of Work

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

To achieve the objectives of the project, the Piping engineering activities shall be executed closely with Client in accordance with the requirements specified for this project. The following methodology is proposed. Piping system will be designed based on discipline inputs (i.e. Detailed Design P&IDs and Process Line List) and in accordance with ASME B31.3, Company specifications and Standards and other referenced international codes and standards. Following activities are planned during the course of project: 1. FEED documents / drawings and existing information 2. Site Survey / data collection and followed with Site survey Report 3. Design Basis The piping scope engineering shall be executed under the direction of the Lead Engineers supported by a staff of engineers and designers. Design The following methodology shall be followed for the execution of the piping discipline activities for the Detail engineering works and also in accordance with the requirements specified for this project: Piping documents/drawings developed during detailed engineering stage shall be reviewed and validated and shall be used as the basis for detailed design. Detailed design documents/drawings shall be prepared based on FEED doc/dwg and site survey reports. The following major design activities shall be carried out to fulfil the project objectives. 1. Overall Plot Plan/Plot Plan/Equipment Layout: - These layouts shall be developed based on FEED layouts to show the new facilities as per the project scope of work/ requirement. 2. Tie-in schedule: Tie-in details will be defined interface split and responsibility between EPC Contractors (EPC-1, EPC-2, EPC-3 & EPC-4) and shall be categorized in line with discussions with EPC Contractor. 3. Piping GAD/Layout: - Rundown A/G pipelines approx.8KMs & Station area of Pig Launcher & Receiver for Lean Gas Pipeline. The new modifications are covering in existing area; the new piping shall be superimposed on existing drawings with project specific scope cloud. It is expected that the existing drawings are provided by client. If Native AutoCAD/ MicroStation drawings are not provided by client, Ramboll will use Raster CAD software and use the image files provided by client. 4. Piping Isometrics: Rundown A/G pipelines approx.8KMS & Station area of Pig Launcher & Receiver for Lean Gas Pipeline. Piping isometrics for the complete scope of work only for Rundown lines will be prepared based on piping layouts. Isometrics shall consider ease of fabrication and installation. All isometric drawings shall have a Material Take-Off listing, including material description, quantities and grade of material, clearly marked on the drawing. Piping isometrics shall also include test requirements, stating methods and pressure, NDT and stress relieving requirements, operating and design pressure, temperature.

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5. Piping Bulk MTO: The Piping bulk MTO for the complete scope of work will be issued after issue of final piping isometrics. Valve Schedule shall be prepared based on the approved P&ID’s. Pipe support MTO shall be issued after submission of final piping isometrics. 6. Pipe Stress analysis: Piping & pipeline stress analysis will be performed for all critical lines, using CAESAR II software, complying with the requirements of Client standards. The basis for stress critical lines shall be as per ASME B31.3, existing drawings and site data and critical line list will be based on the agreed procedure. The purpose of the stress analysis is to check the adequacy of piping layout and supports for the new pipe routing. Where new piping is connected to existing piping, stress system shall include relevant sections of existing piping to simulate the effect of the existing system on the new system. Pipeline sections up to the anchor blocks shall be considered in the stress system. 7. Pipe supports: - Pipe support shall be designed as per QG Standard, “Pipe Supports”. Support types shall be based on the results of stress analysis / review. Pipe support locations and types shall be indicated on Piping GA Drawings, as applicable. Secondary structure for the pipe supports shall be designed by Structural team and verified for pipe loads. 8. Specifications/Calculations/ Procurement Assistance: - Project specific specifications of piping components, PMS/VMS, review of existing client specifications, and shall be developed. Preparation of data sheets for mechanical valves, special items etc are considered. Procurement assistance like (Material Requisition / Technical Bid Analysis / Purchase Requisition / vendor document review etc.) is considered only for the manual valves and piping speciality items. TBE shall include maximum up to 3 vendors only for Evaluation. For piping bulk items, only MTO will be submitted to EPC contractor for procurement. 9. Piping Deliverables: The piping deliverables shall be prepared and submitted for client’s review and approvals as per Scope of Work / Scope Matrix for outside the battery limits. The following documents shall be prepared and provided to: 1. Overall Plot Plan 2. Plot Plan 3. Piping Key Plan 4. Piping General Arrangement Drawings and pipe support location drawings (Construction and Demolition) 5. Piping Bulk MTO – Only RAMBOLL Scope of Work 6. Piping Isometrics (Construction and Demolition) – Only RAMBOLL Scope of Work 7. Valve Schedule - Only RAMBOLL Scope of Work 8. Pipe Support Schedule - Only RAMBOLL Scope of Work 9. Pipe Stress Critical Line List - Only RAMBOLL Scope of Work 10. Pipe Stress Analysis and Issue of Pipe Stress Reports - Only RAMBOLL Scope of Work.

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Interface contractor / consultancy shall provide the allowable loads at boundary/battery limits. 11.4 PIPELINE This section outlines the engineering approach that will be adopted for the Detailed engineering of the following pipelines. 1. Lean Gas Pipeline – 36" U/G 2. CO2 Injection line – 12" U/G Site survey will be performed after the award of project. During site survey the existing facilities and proposed pipeline route will be studied to familiarize the site conditions. Detailed site visit report highlighting the concerns, if any, will be submitted to COMPANY for review and approval. EPC Constructor will carry-out detailed topographic and underground survey to verify all above and below ground services at all proposed sites for new and existing facilities, access roads and at pipeline routes. Pipeline routings shall be thoroughly surveyed and confirmed for any underground or above ground interferences. Existing documents will be verified and reported to company for any discrepancies and it shall be taken care during Detailed design. Pipeline will be considered buried and design will be carried out as per ASME B31.8, referenced QG Standards and specifications and other referenced international codes and standards further supplement and amend the ASME codes in order to meet QG requirements. Pipeline design calculation report consisting wall thickness calculations and bend thinning and will be submitted to ensure the proposed wall thickness and material grade complies with the requirements of ASME B31.8; referenced COMPANY standards and International specifications. Stress analysis will be carried out using CAESAR II, upon approved stress analysis specification, alignment sheets and piping layouts. Data sheets and specifications would be prepared for components like line pipe, hot bends, barred tees, pipeline valves etc. Material take-off will be prepared based on the Alignment sheets and Pipeline route drawings. It includes the quantity of standard wall line pipe, heavy wall line pipe, induction bends and fittings. Based on project requirement material requisitions will be prepared for the items like Line pipe, Induction bends, Barred Tee, Valves, Isolation Joints and anchor flanges followed by Technical bid evaluation and vendor document review. Burial requirement study shall be carried out to assess the pipeline depth of cover in accordance with COMPANY standards and specifications in case of QG pipelines corridors and other referenced international codes and standards in case of RLC & RLTO pipelines corridors. Alignment sheet preparation will commence, after completion of topographical survey. Horizontal scale of 1:2000 and vertical scale of 1:200 would be followed in alignment sheets and as this will subject to QG approval. Drawing Template of the alignment sheet would be submitted to COMPANY for approval prior to the preparation of drawing. Pipeline route layouts, station approach drawings, Tie- in drawings and other drawings for various crossings will also be prepared based on project requirements. EPC Contractor / TOPO Constructor shall identify all the third-party service crossings along the proposed pipeline route during Detailed Engineering stage. Overhead power line crossings design would consider the relevant COMPANY, and other third-party standards. Crossing matrix showing the location, type, and method of construction would be provided during Detailed Engineering. Typical drawings for all types of crossings will also be prepared according to Company standards and submitted for approval.

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Deliverables The following pipeline engineering deliverables are considered for this scope of work (Lean Gas Pipeline and CO2 Injection Line) •

Site Survey report

•

Wall Thickness Study & Hot/ Cold bend calculation

•

Roads / Tracks and Third-Party Crossing Matrix including pipelines and utilities crossings

•

Trenchless Crossing drawings

•

Expansion & Flexibility and Spanning analysis report

•

Pipeline Material Take-Off

•

Long Lead Item List

•

Specifications ( Line pipe, Barred Tee, Hot bends, Insulation Joint)

•

Data sheet (Line pipe, Barred Tee, Hot bends, Insulation Joint)

•

Material Requisition (Line pipe, Barred Tee, Hot bends, Insulation Joint)

•

Pipeline Overall Route Layout

•

Pipeline Route Key Plan

•

Pipeline Route drawing

•

Pipeline Alignment Sheet Key Plan

•

Pipeline Alignment Sheets

•

Station Approach Layout

•

Crossing Matrix

•

Crossing Drawings for Road/ Culverts/ Micro tunnelling / Duct back

•

Pipeline Typical standard drawings

11.5 INSTRUMENTATION To achieve the objectives of the project, instrument engineering activities shall be executed through coordination with other disciplines and in accordance with the requirements of the Company. Overview of the scope understanding for engineering is as follows: Ramboll shall develop a detailed design document package for the CONTRACT in accordance with the identified requirements and Standards and Codes listed or referred to in the CONTRACT. Engineering design shall include the Instrumentation minimum design requirements will be based on QG Standards. Ramboll shall inform EPC contractor to involve OEM for initial WORKSITE surveys to verify the existing systems and for the FEED verification if required. Instrumentation deliverables shall be prepared for product rundown lines, Lean gas export pipeline, CO2 injection lines. All instrument and fire& gas requirements for metering system, pig launcher / receiver and other misc. system shall be prepared as per scope of work. Telecom: Ramboll shall develop a detailed design document package for the CONTRACT in accordance with the identified requirements and Standards and Codes listed or referred to in the CONTRACT. Design shall

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

be in accordance with QG standards and all applicable national and international telecommunications standards. Deliverables The following Instrument / Telecom engineering deliverables are considered for this scope of work (Lean Gas Pipeline and CO2 Injection Line) 1. Design basis Memorandum (Input to common DBM) 2. Instrument Index 3. Instrument IO list 4. Instrument cable schedule 5. Datasheet for Field Instruments 6. Cable Block diagram 7. Interconnection diagram 8. Cause & effect – F&G 9. Instrument Location layout 10. Instrument Cable routing layout 11. Specifications for field instruments / packages 12. Alarm Trip schedule 13. Instrument Loop diagram 14. Instrument MTO 15. Telecom Index 16. Telecom Cable schedule 17. Telecom Datasheet 18. Telecom – Specification 19. Telecom MTO

11.6 TECHNICAL SAFETY / LOSS PREVENTION Technical Safety / Loss Prevention discipline shall demonstrate all foreseeable and credible accidental Hazards have been identified and ensure sufficient barriers and controls are in place such that risks to People, Assets, Environment and Company reputation are within As Low As Reasonable and Practical (ALARP).

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

The project kick of meeting with QG provides the opportunity to brief about the understanding and requirements of the project which helps to finalize schedule, deliverable and task related to Technical Safety / Loss Prevention. Technical Safety discipline shall carryout Safety reviews i.e. HAZID & HAZOP review & closeout, SIL review & verification and documents / drawings in line with the QG Scope of work (SOW) document. The work shall be performed as per QG Specifications and other International Codes & Standards. All necessary Loss Prevention documents and drawings i.e. Hazardous area classification schedule, safety equipment and drawings, fire and gas detection system layouts etc. shall be carried out. Also Safety equipment datasheet and Bill of material shall be prepared for necessary procurement. All reviews i.e. HAZID, HAZOP, SIL review etc. will be conducted through 3rd party chairman and all the required discipline engineers shall participation in the session and provide their inputs and relevant discipline closeouts shall be addressed by them and close out report will be issued. HSE Risk Register will be prepared for all the safety reviews. The same shall be monitored and closed time to time. Hazardous Area Classification (HAC) schedule shall be prepared as per EI 15. Necessary input required from Process, Mechanical, Piping discipline shall be obtained for perform the HAC schedule. In line with the HAC schedule, HAC drawing shall be prepared showing various HAC zone i.e. 0, 1 & 2 to select the appropriate classified electrical equipment and instrumentation. Fire & Gas detection mark-up shall be provided to instrumentation discipline to prepare the drawing for the pig launcher/receiver, metering skid area etc. and necessary alarm, tripping & executive actions through F&G Cause & Effects. Pipe line QRA and Risk assessment document shall be prepared by third party and the same shall be reviewed and commented by Technical Safety Engineer prior to issue of document to QG. Technical Safety Deliverables: • Fire & Safety Philosophy •

Engineering HSE Plan

•

HAZID Terms of Reference

•

HAZID Review Report

•

HAZID Closeout Report

•

HAZOP Terms of Reference

•

HAZOP Review Report

•

HAZOP Closeout Report

•

SIL Terms of Reference

•

SIL Review Report

•

SIL Verification Report

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

•

HSE Risk Register

•

Hazardous area classification Schedule

•

Hazardous area classification drawing

•

Safety equipment layout

11.7 ELECTRICAL No Scope.

11.8 CIVIL AND STRUCTURAL The Civil & Structural Engineering shall be executed under the direction of the Lead Engineer, supported by a staff of engineers and designers. To achieve the objectives of the project, the Civil & Structural Engineering activities shall be executed closely with Client in accordance with the requirements specified for this project. The steps involved in the execution and major deliverables are briefly outlined below: Kick-off Meeting: The project kick-off meeting with client provides the opportunity to brief about the understanding and requirements of the project which helps to finalize the schedule, deliverable and task related to Civil & Structural Engineering. Collection of Documents/Drawings: All the relevant drawings and documents pertaining to the project scope shall be collected from COMPANY. Ramboll will prepare list of drawings, documents, specifications, standards that are required for this project and the same shall be collected from COMPANY at the earliest before commencing for a site survey. It is proposed that all the requirements are mentioned as early as possible and to have an overview of the existing facility. Native files of all applicable existing documents/drawings shall be provided by COMPANY for further updates during the DETAIL Engineering. In case native files are not available, PDF / Tiff files of the required documents/drawings shall be provided by COMPANY for further updates in Raster CAD image, during the Engineering. Conversion of PDF / Tiff file to native format is not in ROG scope. Following existing latest civil & structural drawings / documents shall be required. a) Latest specifications related to Civil & structural works. b) Foundation GA and detail drawings of existing Culvert. c)

Foundation Layout, GA and detailed drawings of existing pipe support & access platform.

d) Foundation Layout, GA and detailed drawings of existing road, paving & grading. e) Foundation Layout, GA and detailed drawings of existing spill pit & pig handling facility f)

Foundation Layout, GA and detailed drawings of existing impact wall. If any

g) Plot plan / site layout / Equipment Layout. General:

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

Prior to the site survey activities, existing as built drawings shall be retrieved from the COMPANY and reviewed to have overview of philosophy of existing facility. Site survey shall be carried out as part of multi-discipline team to verify the condition of existing facilities to establish the location of equipment’s and piping arrangements as per as-built drawings. Assess the requirement of modifications and new civil and structural items needed to accommodate the requirements of Piping, Mechanical, Instrumentation. Site survey shall be carried out to reviewed for the validating the modification and suggestion provided. Inputs to multi-disciplinary site survey report shall be given based on the observations made during site visit. The requirement of new foundations/ modification of foundations shall be finalized based on the Equipment and Piping layouts. All civil & structural analysis will be performed using STAAD.Pro and Foundation check will be carried out using Mat-3D. Wherever the software is not feasible shall be carried out using in-house developed and validated spread sheets. The necessary design documents and drawings shall be submitted to the COMPANY for review and approval. The COMPANY comments shall be reviewed and incorporated along with comment compliance statement or response sheet. COMPANY shall provide the Existing as-build existing Culvert design report files (like STAAD, excel & word files) and related NATIVE calculation report and for checking the Adequacy of extension of culvert analysis and integrity check purpose and those culvert as-build drawing native file of Civil and structural works associated with the extension of culvert. COMPANY shall provide the Existing As-built structural Analysis files (like STAAD, excel) and related NATIVE calculation report for checking the Adequacy of existing sleeper / pipe support / pipe rack structure and foundation details and pipe rack analysis and integrity check purpose. If existing pipe rack reports are not available, the adequacy shall be checked locally assuming all existing piping as water filled loads. Foundation adequacy will not be performed. ROG will prepare a list of missing drawings and documents and collect the information from client at the earliest before commencing the site survey. It is essential that all the requirements as mentioned above are met at the earliest. Site survey: Site survey shall be conducted in tandem with other disciplines viz. Piping, Mechanical and E&I to determine the Civil and Structural requirements as per the scope out lined in the tender document. The observations shall be noted and presented in the site survey report. Site surveys will ensure if the existing drawings match the as built conditions.

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

Design Basis: Inputs shall be provided for a multidisciplinary Design Basis Memorandum for the project. All engineering shall be based on COMPANY specification and other international standards which will be mentioned in the design basis memorandum. Vendor/other discipline drawing review: Vendor drawings shall be reviewed by the upstream disciplines viz. Piping, E&I and Mechanical and the necessary inputs required for Civil and Structural shall be communicated. Interdisciplinary checks: Relevant Civil and Structural deliverables shall be sent for an interdisciplinary check prior to submitting them to COMPANY. Design Documents: The necessary design documents and drawings shall be submitted to COMPANY for review and approval. The comments made on such documents and drawings by the COMPANY shall be reviewed internally and incorporated appropriately along with comment compliance statement or response sheet. List of Deliverables The following deliverables are broadly considered during the detailed engineering: CO2 Injection Lines, Lean gas Pipeline and Rundown Pipelines area: •

Site Survey Report (Provide input for Civil & Structural)

•

Design Basis Memorandum (Provide input for Civil & Structural)

•

Scope of work for the geotechnical investigation survey

•

Scope of work for the Topo / Underground survey

•

Civil and structural General arrangement drawings.

•

Site grading and pavement details drawing.

•

Storm water drainage drawings.

•

Road and pavement details.

•

Pig launcher / receiver foundations, hard standing, impact wall and spill pit details

•

Foundation for Equipment, pipe rack, bridge, Piping Supports and Misc. Supports

•

Structural steel access platforms and pipe crossovers details

•

Typical drawing for cable trenches, Protection Slab and Duct bank etc.,

•

Consolidated Bill of Quantities (Structural Steel & Concrete)

11.9 IT TOOLS & SOFTWARE Ramboll shall utilize the latest software and IT tools for this project, including the following: •

AutoCAD / Raster CAD - as required

•

MicroStation

•

Microsoft visio

•

Smart Plant P&ID

•

PVTSim

•

OLGA

•

Hexagon Smart Plant P&ID (SPPID)

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EPC-3 SCOPE OF WORK FOR NORTH FIELD EXPANSION (NFE) PROJECT – DEATILED ENGINEERING FOR OFFPLOT FACILITIES - PIPELINES

•

Caesar -II

•

STAAD Pro Vi8

•

MAT 3D - as required

•

In-house Calculation Templates

11.10

PROGRESS REVIEW

RAMBOLL Engineering Project Manager who will be the focal point will be having a back-up crew (Document controller & Planner, Technical clerks) who are well trained and aided by fully computerized system will be available and dedicated to maintain proper system for monitoring and flow of documentation / traceability of all deliverables pertaining to this Project. EDDR will form the basis for reporting progress. Ramboll will update and issue the EDDR on weekly basis if required and the deliverable turnaround is as given below as indication. This can be adjusted subject to Client’s requirements. •

For Qatargas (QG) to review/approval: 15 Working Days.

•

For RAMBOLL to update comments : 10 Working days

11.11

CODES & STANDARDS

All the Detailed Design Studies & design will be done in compliance with Qatargas (QG) Engineering standards as well as International Standard and Code Authorities. All QG standards are considered up to date with International codes, hence any review or updates of QG standards are not envisaged.

12.0 ENGINEERING DOCUMENT / DRAWING REGISTER AND PROJECT SCHEDULE / PLANNING

Engineering Document and Drawing Register is the basic document for Engineering Project Progress Monitoring, Execution and Invoicing. It helps to keep current progress of deliverables. RAMBOLL Document controller will keep update status record of each deliverables produced by Project team. The Project Schedule will be prepared in Primavera P6 for Project planning and Execution. It will be regularly updated as per the status in EDDR, and shall be included in the progress reports.

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