Overview:

- Explain the error model in layman’s terms

€- Provide a standard implementation
        - Models
        - IPM’s
        - Mappings
        - Propogation Modes
        - Sep Factor
        - Ellipse Definition
€

- Become the self appointed authority people already think we are!

 

Top 10 Most common complaints

- Two companies using the same tool get different results but both say ISCWSA

- Gyro error models show very small ellipses, are they right?

- Old error models don’t ‘map’ directly to the ISCWSA standards

- What does semi-major axis actually mean?

- Why can’t I use the 1 sigma result?

€- Where can I get one of these Ferranti Tools?

- Separation Factor / Clearance Factor why isn’t there a standard?

-€ Is 1 in 10,000 chance of collision safe?

€- How come fewer surveys don’t affect the uncertainty?

-€ If I run all my wells from one site can I say that I have applied IFR ?

 

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View the entire Presentation:

Error Model

 

Angus Jamieson

 

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