Real-Time Directional Survey Quality Improvement Using Web-Based Technologies

Optimal wellbore placement and collision avoidance requires accurate real-time steering of directional
wells. Uncertainties in the wellbore position are accounted for by industry standard error models.
However, these error models are only valid if the directional surveys are quality controlled and gross
error is prevented by appropriate procedures. Particularly effective quality control is achieved by
independent validation. A novel real-time web application was developed for the transfer of directional
survey data between the rig site and a remote operations center. Surveying professionals at the rig site
upload or import survey data into the web application in real-time.