WL: Well Logs and Traces
Entity Relationship Diagram for Epicentre V3.0 Data Model Copyright (C) 2001 POSC, All Rights Reserved.
wellbore Each well_log may depict the properties of one and only one wellbore. well_log Each wellbore may be represented by one or more well_log. earth_feature Each well_log may depict the properties of one and only one earth_feature. well_log Each earth_feature may be described by one or more well_log. aliased_object Each data_trace_alias must identify one and only one data_trace. data_alias Each data_trace may be known by one or more data_trace_alias. wellbore Each well_log_trace may characterize one and only one wellbore. well_log_trace Each wellbore may be characterized by one or more well_log_trace. well_log_trace Each well_log_trace_classification must classify one and only one well_log_trace. trace_classification Each well_log_trace may be classified by one or more well_log_trace_classification. earth_feature Each well_log_trace may characterize one and only one earth_feature. well_log_trace Each earth_feature may be characterized by one or more well_log_trace. kind Each well_log_trace must be fundamentally defined by one and only one well_log_trace_class. characterized_trace Each well_log_trace_class may fundamentally define one or more well_log_trace. child_class Each well_log_trace_class may be the generalization of one or more well_log_trace_class. parent_class Each well_log_trace_class may be a specialization of one and only one well_log_trace_class. well_log_trace_class Each well_log_trace_classification must reference one and only one well_log_trace_class. trace_classification Each well_log_trace_class may classify one or more well_log_trace_classification. be_classified_as Each well_log_trace_class_clsn must be classified as one and only one well_log_trace_class. classify Each well_log_trace_class may classify one or more well_log_trace_class_clsn. have_as_a_member Each well_log_trace_class_clsn must have as a member one and only one well_log_trace_class. be_a_member_of Each well_log_trace_class may be a member of one or more well_log_trace_class_clsn. naming_system Each data_trace may have name specified by one and only one naming_system. data_trace Each naming_system may be referenced by one or more data_trace. trace_mnemonic Each well_log_trace may be labeled with one and only one well_log_trace_mnemonic. well_log_trace Each well_log_trace_mnemonic may be the mnemonic for one or more well_log_trace. well_log_trace_class Each well_log_trace_mnemonic must be characterized by one and only one well_log_trace_class. characterized_mnemonic Each well_log_trace_class may characterize one or more well_log_trace_mnemonic. property_kind Each well_log_trace_mnemonic may represent one and only one property_kind. common_data_trace_property Each property_kind may be common to one or more well_log_trace_mnemonic. naming_system Each well_log_trace_mnemonic may have identifier specified by one and only one naming_system. well_log_trace_mnemonic Each naming_system may be referenced by one or more well_log_trace_mnemonic. activity Each process_data may be the result of one and only one activity. process_data Each activity may result in values for one or more process_data. activity data_trace data_trace_alias document_specification earth_feature naming_system process_data property_kind well_log well_log_trace well_log_trace_class well_log_trace_class_clsn well_log_trace_classification well_log_trace_mnemonic wellbore