New Instrument Performance Models for Combined Wellbore Surveys Facilitate Optimal Use of Survey Information

Contents:

• Introduction
• Challenge
• Solution
• Results
• Conclusions

Benefits of Multiple Surveys:

• Mutual quality check and validation
• Weighted average gives optimal position estimate
• Weighted average gives minimum position uncertainty B

Two Assumptions:

• The surveys must have passed standard quality tests - No gross errors
• The surveys must be interpolated to common MD

Error Analysis Procedure

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New Instrument Performance Models for Combined Wellbore Surveys Facilitate Optimal Use of Survey Information

 

Adrián Ledroz, Jon Bang, John Weston

 

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