=SAWSDL Prototype for Semantic Days 2008 =




=== Survey Station ===
A Survey Station is a point in the drilling process where a measurement of the inclination and azimuth is performed. The Survey Station (the measured point) is used to calculate the trajectory of the well.

The Daily Drilling Reporting schema has a Survey Station complex element (on line 1333). The survey station consists of the following five fields:

[http://projects.dnv.com/reference_data/RD4Browser/default.aspx?RDLDesignation=DATE%20OF%20SURVEY%20OPERATION dTim - Date/Time for Survey Operation]

[http://projects.dnv.com/reference_data/RD4Browser/default.aspx?RDLDesignation=MEASURED%20DEPTH%20TO%20DIRECTIONAL%20SURVEY%20POINT%20RELATIVE%20TO%20RKB%20-%20METRE md - Measured Depth ]

[http://projects.dnv.com/reference_data/RD4Browser/default.aspx?RDLDesignation=TRUE%20VERTICAL%20DEPTH%20FROM%20RKB%20TO%20SURVEY%20POINT%20-%20METRE tvd - True Vertical Depth]

[http://projects.dnv.com/reference_data/RD4Browser/default.aspx?RDLDesignation=MEASURED%20INCLINATION%20OF%20WELLBORE%20AT%20SURVEY%20POINT%20-%20DEGREES incl - Hole inclination]

[http://projects.dnv.com/reference_data/RD4Browser/default.aspx?RDLDesignation=MEASURED%20AZIMUTH%20OF%20WELLBORE%20AT%20SURVEY%20POINT%20RELATIVE%20TO%20TRUE%20NORTH%20-%20DEGREES azi - Hole azimuth]