Piping material management

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Piping Material Management

Piping Material Management Software

3D model

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Piping Material Classes

Step 1: Process produces the Fluids list with

• Fluid(s) services,

• Service conditions (range of temprature and pressure)

• Basic material,

• Corrosion allowance,

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Step 2: Process groups the Fluids in Piping classes of same material and range of service conditions

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Step 3: Piping produces the Piping Classes Summary with

• Definition of type of valve (gate, globe , check, ball , butterfly, …),

• Definition of trims of valves,

• Definition of kind of gasket,

• Definition of bolting quality,

• The others requirements (corrosion, heat treatments,…),

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Step 4: Piping produces the specification for each Piping Class

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Piping material class specification

Each item is defined by a Material Standard and a Dimensional standard

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The wall thickness of pipes, elbows and tees must be calculated as per the applicable design code, for oil & gas facilities, ASME B31.3

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Piping wall thickness calculation

ASME B 31.3

)(

PY 2SWE

D * Pt

Calculation spreadsheet: https://drive.google.com/open?id=0BxBpbhTfKqRBY3pGaEYxVDVtQlk

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Flanges shall be selected for the design P, T limit of the material

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Piping material class specification Design & construction code, types and materials of seat/seal, trim, are specified for valves

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12

Once the Piping Material Classes are defined, they are entered into the Piping Material Management Software


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Each component is codified « smartly » with Commodity Code

Commodity code: FWN1C54X12L201

Example: Commodity Code (welding neck flange)

Table Name: Table Detail Digits Code

Group: Flanges 1 F

A-Dimensional Std: ASME B 16-5 1 1

B-Material: ASTM A105 4 C54X

D-Ends: R.F. 2 12

F-Rating: 150 lbs 2 L2

X-Alias: Ra=3.2 to 6.3µm 2 01

Part: Welding neck flange 2 WN

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The piping classes are loaded from the Piping Materials Management software into the 3D model

Piping Material Management Software 3D model

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Piping material requisition

Now let’s see what are the time requirements to order Piping materials.

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Let’s consider a lareg 3-year Project. Piping material is usually required at Site on month 18. When shall it be ordered latest?

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Piping material is required at Site on month 18. When shall it be ordered latest? Required On Site (ROS) date - procurement cycle - transport duration = required Engineering requisition issue date

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Piping material is required at Site on month 18. When shall it be ordered latest? Required On Site (ROS) date - procurement cycle - transport duration = required Engineering requisition issue date

Inquiry to PO 4 months PO to ex-works Pipes 6-8 months Fittings & flanges 8 months Transport, incl. Custom clearance 2 months ======================================================== POs to be placed month 18 – 2 – 8 = month 8 of the 3 year Project! Inquiries to be placed month 18 – 2 – 8 – 4 = month 4

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MANUFACTURING INQUIRY

4 8 18

PROJECT MONTH

TRANSPORT

Inquiries issued

Purchase orders placed

Material Site delivery

Isometric drawings

Piping fab.

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The Piping MTO is issued 3 times as a minimum: 1st MTO: issued for Inquiry, to get the Unit prices 2nd MTO: issued for Order 3rd and subsequent MTOs: to top-up

On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared?

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO:

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available)

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO: IFD P&IDs + Piping studies/layouts or 3D model (part)

How are Quantities to purchase (BOM) obtained from the MTO quantities?

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Material Take-Off’s

Piping installation

Piping material

MTO

Material Requisition P&IDs

Piping routing /

layout

Bill of Materials

+ Estimates of what is not taken-off

+ Allowances for cut & losses

MTO quantities

- Uncertain items

+ Allowances for design development

Piping specifications

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Material Take-Off’s

0

10

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30

40

50

60

70

80

90

100

MTO 01 MTO 02

qu

an

titi

es

(%

)

Estimation

Validity factor

Manual take-off

Model 3D

1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO: IFD P&IDs + Piping studies/layouts or 3D model (part)

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO: IFD P&IDs + Piping studies/layouts or 3D model (part) 3rd and subsequent MTOs

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On the basis of which document(s) are the 1st, 2nd and 3rd piping MTO prepared? 1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO: IFD P&IDs + Piping studies/layouts or 3D model (part) 3rd and subsequent MTOs: (IFC P&IDs) + isometrics (3D model)

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Above ground Piping

2nd MTO (for order)

1st MTO

(for inquiry)

3rd MTO (top-up’s)

Piping Material Take-Off’s

IFR IFD IFC P&ID

Piping routing drawings

Piping layout drawings/3D model

Piping isometric drawings

Drawing

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Isometric

3D

Once the isometric is issued the final list of material is known.

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Isometric

3D

These quantities are fed into the Piping Material Management software.


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Isometric

3D

They replace the previous quantities (that of MTO 2).

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34

0

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20

30

40

50

60

70

80

90

100

qu

an

titi

es (

%)

MTO 01 MTO 02 MTO 03

Model 3D IFC

Estimation

Validity factor

Manual take-off

Model 3D

1st MTO: P&IDs 1st issue + Plot Plan or Line diagram (if available) 2nd MTO: IFD P&IDs + Piping studies/layouts or 3D model (part) 3rd and subsequent MTOs: (IFC P&IDs) + isometrics (3D model)

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What is Piping Material matching? A check to know if all materials required to fabricate a piping iso/spool are available at Site. In the positive the spool is called a « Yes » spool .

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Material match?

« Yes » spool

« No » spool

Bill of materials

Shop isometric

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Material match?

« Yes » spool

« No » spool

50%

75%

˜ 33%

Shop isometric

Bill of materials

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What is Piping Material matching? A check to know if all materials required to fabricate a piping iso/spool are available at Site. In the positive the iso/spool is called a « Yes » iso/spool. It enables you to assess the workfront.

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What is Piping Material matching? A check to know if all materials required to fabricate a piping iso/spool are available at Site. In the positive the iso/spool is called a « Yes » iso/spool. It enables you to assess the workfront. To do the material matching you must allocate the BOM of the iso/spool to the materials in the Piping Material Management System. This is done by feeding the BOM with the iso/spool reference in the Piping Materials Management system.

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Piping Materials Procurement

Piping Design

3D model

Material requisition

Design/shop iso Activity Document

Legend

Piping Materials Management software

Piping Material Management System

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What is Piping Material matching? The Piping Material Management System is fed with the materials deliveries.

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Piping Design

3D model



Legend


Piping Material Management System Site Materials receipt

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Material match?

« Yes » spool


Piping Design

Site Materials receipt

3D model



Legend


Piping Material Management System

Piping material management

Engineering

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