Key terms are defined below. For more information, many terms can be found in the Petroleum Information data Dictionary (PIDD) and in the Schlumberger Oilfield Glossary.
Entity and attribute definitions are available in the Web report
� � Borehole Point � A point on a Borehole trajectory. There are borehole points which have been correlated to a feature by populating the association to a Geologic_Surface.
� � Borehole Zone � An interval in a wellbore. There are borehole zones which have been correlated to feature by populating the association to a Geologic_Layer.