Jrm-AP-Eng-3900 r1 Pdms Modeling Drafting

J. Ray Ray McDe McDermo rmott tt – Asia Pacifi Pacific c Engin eeri eering ng

ENGINEERING PROCEDURE LEVEL 2

PDMS MODEL MODEL ING / DRAFTING JRM-AP-ENG-3900

Page S M

J. Ray McDermot t Asia Pacifi c Engineering

Procedure number

Procedure title

Rev No.

JRM-AP-ENG-3900

PDMS Modeling / Drafting

1

3 of 21 Date

31/03/06

REVISION INDEX

PREPARED BY

AUTHORISED BY ENG. MANAGER ENG. DIRECTOR JKT SING

REV NO.

REVISION DATE

AFFECTED SECTION

0

23/11/01

Initial Issue

S. Respatie

CK Mohan

1

31/03/06

General Revision

P. Murugesan

Handoko

QA

A. Pollack S. Kumar

S. Banerjee

M. Wilson

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


Rev No.

1

4 of 21 Date

31/03/06

TABLE OF CONTENTS

REVISION INDEX.....................................................................................................................3 1 INTRODUCTION & SCOPE ...................................................................................5 2 OBJECTIVES ...........................................................................................................5 3 REFERENCES..........................................................................................................6 4 DEFINITIONS & ABBREVIATIONS.....................................................................6 5 RESPONSIBILITIES................................................................................................8 6 PROCESSES...........................................................................................................10 7 INTERFACES.........................................................................................................13 8 REVIEW AND APPROVAL..................................................................................14 9 DOCUMENT ISSUE ..............................................................................................14 10 DRAWING STORAGE ..........................................................................................15 FLOWCHART 3901 – Work Process FLOWCHART 3902 – Work Process APPENDIX A – PDMS Model & Drawing Contents

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


1

Rev No.

1

5 of 21 Date

31/03/06

INTRODUCTION & SCOPE This document is a Level II procedure for J. Ray McDermott Asia Pacific Engineering (JRMAPE), and forms part of the management system as described in the J. Ray McDermott Asia Pacific (JRMAP) Level I Management System Manual. This Level II standard operating procedure outlines the functions of the Piping Drafting. Detailed work instructions and other relevant Level II procedures are referenced as applicable.

2

OBJECTIVES a)

The objectives of this procedure is to define the responsibilities, activities and functions of the Piping Drafting Group to be used by JRMAPE in performance of work on a project.

b)

Ensure that the design, the drawings, and the material takeoffs meet the following conditions: •

•

•

•

•

•

c)

Easily understood and accurate, and adhere to all applicable governing codes and regulations Be produced systematically in accordance with the approved basis of design criteria Present an piping system that establishes safety as a primary concern Fulfill the fabrication contractor's requirements with a minimum of explanation or assistance from J RMAPE Contain adequate information so that the customer can readily use them for maintenance and future revisions of the facility Ensure that all packaged units are interconnected safely and accurately and are compatible.

Provide guidelines for achieving and maintaining quality and consistency of work, by defining the detailing, checking, and coordination system to be followed on all projects.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


Rev No.

1

6 of 21 Date

31/03/06

This procedure will be subject to audit as part of the ongoing review of the quality management system. It is not the intent of JRMAPE to vary these processes for projects unless contractual reasons dictate otherwise. In those instances, any contractually agreed changes will be outlined in the Project Execution Plan.

3

4

REFERENCES a)

17-01-001, Level I Procedure Management System Manual – J. Ray McDermott Asia Pacific

b)

JRM-AP-ENG-0100, Organisation & Responsibilities

c)

JRM-AP-ENG-1800, Document Review & Verification

d)

JRM-AP-ENG-1900, Document Initiation, Signoff & Retention

e)

JRM-AP-ENG-2300, Interface Control

f)

JRM-AP-ENG-3700, Material Take-Off

g)

JRM-AP-ENG-3910, Piping Drafting

h)

Level II procedures, as applicable

DEFINITIONS & ABBREVIATIONS 3D

3-Dimensional

AFC

Approved For Construction

BOM

Bill Of Material

COG, CG

Center Of Gravity

JRMAP

J. Ray McDermott Engineering Asia Pacific

JRMAPE

J. Ray McDermott Engineering Asia Pacific Engineering

MFD

Mechanical Flow Diagram; also referred to as a P&ID (Piping & Instrument Diagram)

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


Rev No.

1

7 of 21 Date

31/03/06

MTO

Material Take-Off

NPSH

Net Positive Suction Head

PDMS

Plant Design Management System. A proprietary computer-based design management system structured to allow multi-discipline design teams to build a full-scale facility from which detailed 3D graphical representations can be viewed and manipulated. PDMS is specificationdriven and object-oriented and consists of a single relational database management program with separate and distinct modules, each performing a distinct function.

SPECGEN

Specification generation, a computer program used by Mechanical Engineering to prepare a computer piping catalog input for PDMS and to transfer the piping specifications created to the PDMS system.

CAESAR

A proprietary, computerized, PC-based, stress analysis program used by Mechanical Engineering to perform stress analysis on designated lines. Piping systems identified as critical or stress-sensitive are electronically transferred from the PDMS model directly to CAESAR to produce annotated stress sketches. Corrected or approved lines are sent back to the Piping Drafting Group electronically.

MACTROL

A program designed to transfer material takeoffs from PDMS to the Materials Department.

PDMS– Clasher module

The PDMS model can be clash-checked by single- and multi-discipline interference checking. This is carried out progressively through the project.

PDMS– Review module

The PDMS model can be downloaded, in its entirety, to REVIEW. With this system, the 3D model is displayed as a fully rendered, realistically illuminated, solid entity with a walk through attribute.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


5

Rev No.

1

8 of 21 Date

31/03/06

RESPONSIBILITIES a)

General responsibilities of the group include preparation of the following: • • • • • • • • • • •

Plot Plans Equipment Arrangements Piping Plans Piping Sections and Details Isometrics Miscellaneous Pipe Support Material Take-Off Report Piping Weight and COG report As-Built drawings Deck Bulkhead Penetrations Spool Drawings

b)

The individual responsibilities within Piping Drafting Group are defined in Procedure No. JRM-AP-ENG-0100, Organisation & Responsibilities.

c)

General responsibilities of the Piping Drafting Squad include: •

•

•

•

•

•

Developing plot plans, equipment arrangements, piping, and support system design drawings that incorporate the requirements of all other departments and those of the fabricator when applicable Producing plot plans, equipment arrangements, and piping construction and fabrication drawings Coordinating project related activities with other disciplines / groups Developing vessel nozzle orientation and support arrangement design, in conjunction with the Mechanical Engineering Group Reviewing and commencing on equipment vendor drawings, in conjunction with the Mechanical Engineer Group Developing piping layout and studies

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


•

Rev No.

1

9 of 21 Date

31/03/06

Developing pipe stress sketches.

d)

A drafting squad, led by a Drafting Squad Leader, is the key organisation in the performance of project piping drafting work. All drafting is done at the squad level, which consists of designers and draftsmen. Staffing is accomplished through the combined efforts of the Squad Leader and the Drafting Supervisor / Section Leader.

e)

The Drafting Supervisor / Section Leader has overall responsibility for the piping drafting work. The Drafting Supervisor / Section Leader is responsible for allocating the personnel for various drafting squads, and appointing Drafting Squad Leader.

f)

The assigned Drafting Squad Leader is responsible for coordinating all drafting activities on a project and for reviewing all drawings prior to their issue. The Drafting Squad Leader is also responsible for obtaining approval signatures required for review, approval, AFC, and revision drawing issues.

g)

The Drafting Squad Leader will ensure that drawing lists are maintained to show progress and current drawing status.

h)

General responsibilities of the PDMS Administrator include: •

•

•

•

Coordination with IT department to set up PDMS Software and related Applications (APPS) Preparation of Project PDMS procedures (Job Notes) Set up the PDMS project and establish databases for all disciplines Set up Clash Management system and establish clash Management Procedure

•

Set up PDMS key plan with area break down

•

Set up and maintain the project REVIEW model

•

Set up ISO draft / draft macro and backing sheets

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


•

•

•

6

Rev No.

1

10 of 21 Date

31/03/06

Create, update and maintain special piping / instrument catalogue and specification Create and update piping weight database and update with PDMS Assist Piping MTO Engineer with material report dumps from PDMS.

PROCESSES This section gives a brief outline of the processes involved in the overall functioning of PDMS Modeling and Drafting.

6.1

OVERVIEW OF PROCESS The activities involved in the development of PDMS Modeling Drafting Group deliverables are as detailed in Flowcharts 3901, 3902 and Appendix A.

6.2

MODEL SET-UP & MAINTENANCE a)

Project administrative detail, specifications and catalogue information are first input into the PDMS system in accordance with input from Lead Discipline Engineers.

b)

The input from the sources shown in Flowchart 3901 are used to start the 3D modeling. Flowchart 3902 indicates the sequence of events followed for the 3D modeling process.

c)

Appendix A shows the minimum amount of information input into the PDMS model for any project to ensure that the drawings produced from the model meet the indicated criteria.

d)

The Piping Drafting Squad Leader divides the project into workable sections in order to control the input into PDMS. These sections will usually be divided by area (e.g., north or south end of platform) or by different deck levels. A designer is assigned to each area designated as a database. Only one designer can work in any database at any one time.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


6.3

Rev No.

1

11 of 21 Date

31/03/06

e)

Daily, weekly, and monthly backups are run on the PDMS model to ensure information can be retrieved from any phase of the project.

f)

All input into the PDMS model is verified by a series of reports and/or checklists.

g)

The interface requirements from Structural Drafting Group includes the modeling of primary and secondary structures as required for clash purposes

h)

Similarly the Electrical and Instrumentation Drafting Group shall model cable trays, light fixtures, push button stations and junctions boxes.

PLOT PLANS These drawings are the layouts or maps of the entire facility. Plot plans show the plant/platform site in relationship to the surrounding area.

6.4

EQUIPMENT ARRANGEMENTS Equipment arrangements show and locate the equipment, pipe supports, buildings, etc., inside a designated area of the platform.

6.5

PIPING PLANS The piping plans depict the equipment and show all piping systems indicated on the MFDs.

6.6

PIPING SECTIONS AND DETAILS These drawings clarify and support the piping plan drawings by developing elevation views and detailed drawings of areas that would not be understood by plan views only.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


6.7

Rev No.

1

12 of 21 Date

31/03/06

ISOMETRICS Isometrics (ISO’s) are pipe fabrication details for the use of the fabricator's pipe shop. They are used in the fabrication of the pipe and piping components and also in erection. Isometrics are produced for all piping over ¾", and they are dimensioned, contain coordinates at the origin point, and include a complete BOM on the drawing. Normally, isometrics 2" and larger are for fabrication; isometrics 1-½" and smaller are for MTO only. These requirements may vary with project requirements.

6.8

MISCELLA NEOUS PIPE SUPPORTS These drawings are fabrication details of any pipe supports not designed by the Structural Engineering Group.

6.9

6.10

MATERIAL TAK E-OFF REPORTS a)

The material take-off list is a total of all pipe, valves and fittings that are listed on the isometric drawings.

b)

The generation of MTO will be as per the Procedure No. JRM-APENG-3700, Material Take-Off.

PIPING WEIGHTS AND COG REPORTS The weights of all pipes, valves and fittings are developed from the material takeoff list. This is a computer-generated list that can also locate the platform's COG.

6.11

AS-BUILT DRAWINGS These drawings are developed as revisions are made to the piping system during fabrication and erection. The fabrication site will advise any revisions to drawings and send them to Piping Drafting for incorporation into the finished as-built drawings.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


6.12

Rev No.

1

13 of 21 Date

31/03/06

DECK BULKHEAD PENETRATIONS Drawings or reports that can be created to show sizes and locations of all penetrations through a deck, bulkhead, firewall, etc.

6.13

SPOOL DRAWINGS These are fabrication drawings extracted from the isometric drawing. These drawings show smaller sections of the isometric drawings that are broken at welds, field welds, or flanges and are also available from the 3D model.

6.14

7

CONTROL OF REVISIONS TO MODEL a)

All revisions to a PDMS project must come through the Piping Drafting Squad Leader. When a revision or a change is marked on the "master flowsheets," the Piping Drafting Designer will check the isometric stick or issue list to see the status of the revised isometric. If the isometric has been issued AFC, the Fabricator is notified by phone to "HOLD & DO NOT FABRICATE UNTIL REVISION IS ISSUED"; details of the conversation are recorded.

b)

If the Isometric has not been issued, the model is revised in the normal flow of design. Any changes or revisions are either corrected immediately or marked-up in the Iso stick to be fixed later. The marked-up Isos are folded up in the stick file to stand out as a flag to ensure that the change is not missed.

c)

All corrections to the model are checked back to the correct report or checklist to ensure accuracy. The revised model is then reviewed with the customer by way of progress plots or a new model review. All revised isometrics will indicate the change to the isometric, and the change is "clouded" for easy recognition.

INTERFACES All interfaces are performed and controlled in accordance with Procedure No. JRM-AP-ENG-2300, Interface Control.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


8

Rev No.

1

14 of 21 Date

31/03/06

REVIEW AND APPROVAL The design deliverables shall be reviewed and approved in accordance with Procedures No. JRM-AP-ENG-1800, Documents Review & Verification.

9

DOCUMENT ISSUE All documents, procedures and drawings will be issued in accordance with Procedure No. JRM-AP-ENG-1900, Document Initiation, Signoff & Retention. a)

Piping plans and sections are issued to other departments on the project as required. These progress plots are made to keep the other departments updated on the status of the 3D model and to give them the information required to undertake their activities on the project.

c)

Isometrics are issued to other disciplines that may require them to perform their tasks (e.g., Mechanical Engineering for stress analysis, NPSH, etc., and Instrument Engineering for instrument location, in-line dimensional checks, etc.). Isometrics are issued to other disciplines upon request.

d)

Progress plots are a complete set of piping plans and sections issued to the customer as required for review

e)

Fabrication isometrics are the first drawings available from the 3D model, and final piping plans and sections are the last. As a result, the normal Customer approval procedure cannot be used. Clients are kept informed of project progress via progress plots.

f)

Clients comments are made in the form of lists of questions or requested changes. These comments are acted upon, and the model is corrected and re-issued as required. The lists of client questions or requested changes are maintained on file instead of the normal comment prints. In addition to the progress plots, a review meeting is held as required to update the customer and other departments and groups on the status of the 3D model.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


10

Rev No.

1

15 of 21 Date

31/03/06

DRAWING STORAGE The Drafting Squad Leader will maintain hard and soft copies of latest revision of drawings as well as superseded revisions and check prints during the course of the project. When a project is complete, the Original Revision 0 drawings, duly signed/stamped, along with a set of the final-issue drawings and a CDROM(s) containing the electronic files for these drawings/revisions, will be sent to library for archiving purposes.

Page S M


Procedure number

Procedure title

Rev No.

JRM-AP-ENG-3900


1

16 of 21 Date

31/03/06

PDMS Modeling/ Draftin g FLOWCHART 3901 Work Process

DISCIPLINE ENGINEER

Process Eng'g - Preliminary flowsheets - Equipment list & equipment sizes - Input to line list

Mechanical Eng'g

PDMS MODELLING/ DRAFTING

Project set-up / PDMS administration Create databases Set project name, description, & number Specifications & catalogs Get piping specifications from SPEC GEN Obtain instrument dimensions Obtain details of specialty items Check specifications & catalogs

- Preliminary/final equipment sizes - Piping specifications (from SPEC GEN) - Specialty items

Modeling Equipment, steel, piping, cable tray, miscellaneous pipe supports

Instrument Eng'g

3D model review Transfer model to review

- In-line instrument dimensions - Panel sizes - Input to equipment arrangement

OTHER DISCIPLINE

Mechanical engineer to transfer ISO to CAESAR software, review and comment of model

Electrical/ Instrument and Structural engineer review and comment of the model

Incorporate discipline engineer comments

Structural Eng'g - Preliminary structural drawings - Numbers & sizes of decks

Incorporate clients comments

Pipeline Eng'g

Drawing production Perform drawing set-up Perform annotation & dimensioning

- Preliminary structural drawings - Numbers & sizes of decks - Preliminary Pipeline and Schematic - Preliminary Layout Schematic - Preliminary Overall Field Layout

Output Equipment arrangements piping isometrics/ spools, piping PLEMs and section, create weight and COG

Issue drawings for signoff in accordance with procedure

Issue approved drawings in accordance with procedure

Client review and comment of the model

Page S M


Procedure number

Procedure title

Rev No.

JRM-AP-ENG-3900


1

17 of 21 Date

31/03/06

PIPING

PDMS Modeling/ Drafti ng FLOWCHART 3902 Work Process

Set north/south and east/ west elevations

Locate general pipeways Create general layouts (model pipe with preliminary information)

Obtain approvals for overall layout and pipe routing (review) Perform bulk MTOs Calculate weights & perform COG studies

Correct Iso with latest information

Run DATACON & CLASHER checks

Generate ISOs

Check ISOs

EQUIPMENT

STRUCTURAL STEEL

CABLE TRAY

Model with preliminary information

Model steel with preliminary engineering sketches

Receive sketches from Electrical Drafting

Update model with approved information

Update model with approved structural drawings

Input tray into model

Check model, and file

Keep model updated with all revisions from Structural Engineering/Drafting

MISCELLANEOUS PIPE SUPPORTS Make miscellaneous pipe support (MPS) sketches where support is required

Model & located MPS in PDMS

Clash tray for interferences Generate MPSs on 8.5" x 11" drawings Correct clashes/model with Electrical Drafting Check with clash report & drawing plots

Page S M


Procedure number

Procedure title

Rev No.

JRM-AP-ENG-3900


APPENDIX A PDMS MODEL & DRAWING CONTENTS

1

18 of 21 Date

31/03/06

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


1

Rev No.

1

19 of 21 Date

31/03/06

PURPOSE The intent of these guidelines is to establish the minimum amount of information to be input into the PDMS model for any project to ensure the following objectives are met by the piping drawings developed from the model:

2

a)

Drawings must meet the fabrication contractor's erection requirements without the need for an on-site JRMAPE employee to interpret them.

b)

Drawings must contain adequate information so that the Customer and/or its future consultants can readily understand the drawings for maintenance purposes and for future revisions.

PDMS MODEL CONTENTS a)

All main steel.

b)

Representative lengths (for example, 10') of bridges, vent booms, or other structures leaving the facility.

c)

All stairs, ladders, and access platforms with soft volumes for personnel movement on these structures.

d)

Soft volumes for access/walkways through the facility.

e)

Handrails.

f)

All equipment modeled as geometric shapes with all connections shown.

g)

Suitable block representation of all non-piped items, such as control panels, major lighting panels, fire cabinets/monitors, etc., to prevent interferences.

h)

All pipe, fittings, valves, and inline instruments, as well as bridled instruments on vessels.

i)

Buildings with soft volumes modeled for door openings/access.

j)

Supports for equipment and pipe.

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


3

Rev No.

1

k)

Major cable tray runs.

(l)

Light fixtures , push button stations and junction boxes

20 of 21 Date

31/03/06

PIPING DRAWING CONTENTS a)

All pipe lines are to be tagged (planes, sections, and details) with the line number and its size. The ISO sheet number will be included with the number if more than one sheet is required (2" A-123SHT1, 2" A-123-SHT2, 2" A-123-SHT3, 2" A-123-SHT4, etc.).

b)

All instruments shall be tagged with their respective number on all piping drawings, plans, sections, and details.

c)

All pipe supports are to be shown, located, and tagged.

d)

On piping plans, the following items are to be tagged and located with dimensions and/or coordinates: Equipment Deck legs and/or main support columns Major pipe supports All piping located on pipe racks All piping 2" and larger Piping tie-ins to large modules Inlet or outlet piping such as pipe risers, plant inlets/outlets, etc. • • • • • • •

e)

Piping sections will show elevations at the following places: Deck levels or at grade Top of foundations and/or major supports Platforms Equipment All piping 2" and larger Pipe supports Inlet and/or outlet piping Tie-in points. • • • • • • • •

Page S M


Procedure number

Procedure title

JRM-AP-ENG-3900


4

Rev No.

1

21 of 21 Date

31/03/06

ISOMETRIC DRAWING CONTENTS a)

Isometrics will be produced for all piping 2" and larger.

b)

Isometrics will be dimensioned and will contain coordinates at origin points.

Isometrics will contain a bill of material and cut lengths.

Jrm-AP-Eng-3900 r1 Pdms Modeling Drafting

Recommend Documents