Overview:
- A valuable tool in the right hands, but currently only run by experts
- What are acceptable differences?
- Bias really works here – otherwise its hard to understand systematic differences.
- Random Errors affect inclination & azimuth error band and standard deviation but are under represented in error model
Why Compare Surveys?
- Validation: Independent surveys check each other for gross errors
- Post Well, QA, Data Transfers, Relief Wells
- Surveys must be completely independent
- Gyro vs. Magnetic
- MWD vs. ESS
- Gyro vs. Gyro (different types)
....
View the entire Presentation:
Survey Comparison Drilling and Production
Jerry Codling - Landmark Software & Services