8/4/2019 Mathcad in Oil & Gas TD

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Mathcad in Oil & Gas

Thomas Devaraj, Senior Application Engineer PTC

February 2010

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2010 PTC2

Major O&G Companies are Standardising on Mathcad

Maersk, Drilling Operations

Audit requirements to ISO 5167 on metering devices foroil/gas flow. Excel made iterations difficult and littletransparency. Mathcad is used for all auditing/checking.

Previous tools written reports, calculators,

spreadsheets, programming solutions, etc

Smith Rea, Metering Performance

Subsea7, Pipelines & Structures

Mathcad used to analyse and communicate drillingperformance calculations between on-shore andoffshore teams resulted in significant drillingperformance and production improvements

Mathcad is the critical tool for performing & documentingall pipeline and structural calculations to ISO and DNVspecifications.

Oil & Gas

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2010 PTC3

ConceptualDesign

Role of Mathcad in Engineering & Product Development

DetailDesign

Analysis Tooling&Mfg

Validation&Prototype

Validationand TechPubs

ProductRequirements

To design and engineer effectively and efficiently, engineeringcalculations must be captured and re-used as critical intellectualproperty (IP)

Mathcad leverages engineering intent that cannot be captured bythe CAD systems and design geometry, driving design throughengineering best-practices

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2009 PTC4

Inefficiencies of Traditional Tools in capturing design intent & IP

1. Hand Calculations / Reference Material

Easy to use and everyone has it

But audit process is a complete re-work to check EVERYcalculation, correct unit-handling, etc

Its strictly a static documentation solution modifications or reusabilityrequires a re-write

2. Excel (& Word) ~ Pervasive, but ImperfectExcel - live calculations but formulae hard to read auditing

difficult/lack of documentation in one tool

No units management (eg Mars Explorer issue, etc)

Prone to error re-use (90% of spreadsheets over 150 rows)

3. Programming-based Solutions

Very specialized capabilities, requires very fluent users (non-engineers)

Geared toward heavy analysis/simulation (where applicable)

Typically a high learning curve, low reusability, not for documentation

Mathcad ~ addresses clear, documented,reusable engineering solution

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2010 PTC5

Mathcad

Intuitive

Easy to use, whiteboard interface

Natural math notation human readable

Comprehensive

Combines text, live math, graphics, andannotations in a single worksheet

Unmatched breadth of application-powerful mathematics functionality

Unit awareness

Automates process; repeatable &auditable

Interoperable

Easily integrates with other engineeringapplications

0 0.5 1 1.5 2 2.5 3 3.5 41

0.5

0

0.5

1

Fig 1: Airfoil Shape using Bezier Curves

Yj

Vj

v1s 1

v2s 1

Xj Uj v1s 0 v2s 0

Mathcad is used to explain the theory of airfoil lift, provides anumerical analysis of the flow over an airfoil (to compute CL) and

correlates the experimental results.

Lift Ap cos

d A0.5 U2

1u

U

2

cos

d

CLLift

0.5 U2

AsCL

2

N

j

dxj 1

0.5 Vj 1

Vj

Integral Part of PTCs Product Development System

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2006 PTC

Mathcad Capabilities

Live Numeric and Symbolic Calculations

Over 1000 built-in functions and solvers

Vectors, Matrices

2-D and 3-D graphing

Units Capabilities

Programming capabilities

Unique Provenance capabilities

Publish to a variety of formats includingpdf, rtf, html, etc.

Help, Tutorials, Quicksheets

S

1

10

xx2

d 333

0

xcos x( ) sin x( )

d 2

i

i3

1

4i4

1

2i3

1

4i2

s

3s( )2 s

2

d

d18 s

1

2

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2010 PTC7

Mathcad Engineering Libraries (E-books)

Key Benefits and CapabilitiesLeverage standard libraries to solve design engineering problems

Gain instant electronic access to critical engineering resources

Work faster and easier using live, interactive content

Easily copy content, including live equations, from the libraries to your own worksheets

No need to recreate these libraries they are ready on day one

Three Libraries

Mathcad Electrical Engineering Library

Mathcad Mechanical Engineering Library

Mathcad Civil Engineering Library

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2010 PTC

Electrical

Saipem Energy International (SEI) is an offshore engineering company. SEI combines its know-

how and engineering design skills of the Saipem with its experience of construction,management and marine operations.

.

Application of Mathcad to perform a probabilistic study and plot the results. Looking for anintuitive and light tool which could assist in performing the analysis without knowing anyprogramming languages

Mathcad worksheet to support decision about the subsea valves location and installation,

instead of adopting common rule-of-thumb techniques. Future work will improve thedescription of the impact scenario and the pipeline response to the load. In particular, astructural-reliability based analysis with Mathcad will be utilized for evaluating the failureprobability given the impact

Oil & Gas

Perform a Risk Assessment of Pipeline Protection (Dropped Object Study) which is a risk-based approach for assessingpipeline protection against accidental external loads like dropped crane loads on offshore risers, pipelines and umbilicals

BUSINESS INITIATIVE

RESULTS

SOLUTION

We have chosen Mathcad due to ease of use, self-explaining, intuitive application and full capability ofdeveloping the integral/differential equations for the probabilistic assessment; moreover the Mathcad worksheetis easily managed by every HSED Engineer.What you see is what you getthis is what we needed and what we gotMathcad!

Massimiliano Colombi Saipem Energy International HSED Manager

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Oil & Gas Reference: www.drillers.com

The Electronic DrillingManual:

Online mathematicalcapability, which allows alogged-in subscriber to carryout mathematical operationswith pre-defined Mathcadworksheets for a variety ofoilfield operations with only aweb browser.

Plan to expand this capabilityto assist Drilling Engineersand Supervisors to plan anddrill wells safely and costeffectively.

Oil & Gas

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Solution: Selected Mathcad

Deployed a highly accessible tool forcalculations & documentation

Standardised on Mathcad for all engineeringcalculations

Standard: Mathcad is now a best practice

Drilling performance and productionimprovements resulted from more effectivecalculations and communication

Oil & Gas Reference

Peter Aird

Maersk Oil

Managements Key Objectives:

Streamline communications

Improve quality

Improve performance

Situation: Used spreadsheets, hand-calcs &

best-guess to analyse and communicatedrilling performance calculations between on-shore and offshore teams

Inconsistent results because of differentmethods of calculation

Significant margins of error incorporated

due to lack of confidence in accuracy ofcalculations

Oil & Gas

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Mathcad & Product Integrations

Pro/ENGINEER, Pro/MECHANICA

Solidworks

Bentley Microstation

AutoCAD Inventor

ANSYS WorkBench

CATIA

ESRD StressCheck 7

Excel

National Instruments - LabView

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The Complete Digital Product Definition

Pro/ENGINEER answers the question of WHAT the design is and Mathcadanswers the question of WHY the design was done that way.

WHAT? WHY?

Pro/ENGINEER Mathcad 2010 PTC12

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Mathcad 14 & Pro/E WF 5.0 in Structural applications

2010 PTC13

Cross section properties stored in Excel components

Beam calculations using Excel data performed in Mathcad

Beam requirements specs automatically drive Pro/E model

Pro/E model updates geometry used in Mechanica FEA

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Demonstration: Mathcad

Thomas Devaraj, Senior Application Engineer - PTC

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Call to Action

View the online demos & other information

http://www.ptc.com/products/tutorials/mathcad.htm

Discuss Mathcad with your Managers and Colleagues

Book another discussion with PTC to progress it further

Contact us if you have any other questions:

Contact your regional representative

or

Email: Stig Jensen on sjensen@ptc.com

Thank you for your time!

http://www.ptc.com/products/tutorials/mathcad.htmhttp://www.ptc.com/products/tutorials/mathcad.htm