| Name | Seismic_Line_Segment |
|---|---|
| Entity Type | Table |
| Description | Definition of a segment of the seismic line in terms of start and end point numbers. |
| Submodel | Seismic |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations | Dataset_Line_Segment , Inventory_Line_Segment , Live_Trace_Line_Segment |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Existence_Kind | REF_EXISTENCE_KIND NA |
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. | Yes Actual |
VARCHAR2(64) |
| First_CDP | double No_Unit |
CDP number of the starting point of the segment. | No |
NUMBER |
| First_Field_File | double No_Unit |
The number of the first acquisition file that contains the data for the segment, For use with SEG-D and SEG-Y field data. | No |
NUMBER |
| First_Shotpoint | double No_Unit |
Shotpoint number of the first point of the segment. | No |
NUMBER |
| GUID | STRING128 NA |
Globally Unique IDentifier for an instance of a class. This GUID is not generated by the database, but is the GUID used by the application on first access of this object. Use of this property is optional and completely under the control of application developers. | No |
VARCHAR2(128) |
| Id | ID No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Insert_Date | DATE NA |
Date the entity was created in the repository | No |
DATE |
| Insert_User | STRING64 NA |
The name of the user responsible for the creation of this entity in the repository. | No |
VARCHAR2(64) |
| Last_CDP | double No_Unit |
CDP of the last point of the segment. | No |
NUMBER |
| Last_Field_File | double No_Unit |
The number of the first acquisition file that contains the data for the segment, For use with SEG-D and SEG-Y field data. | No |
NUMBER |
| Last_Shotpoint | double No_Unit |
Shotpoint number of the last point of the segment. | No |
NUMBER |
| Name | ENTITY_NAME NA |
The name given to any object or data item, e.g. Name of Well, Name of Field, etc. | No |
VARCHAR2(255) |
| Numbering_System | STRING255 NA |
Indicates whether start and end point numbers are CDP or shotpoint. | No |
VARCHAR2(255) |
| Original_Source | STRING64 NA |
The name of the person, Organization or project source that originally provided this entity, e.g. "IHS-EnergyData" or "FinderUpper Stratton Deeper Pool 15" | No |
VARCHAR2(64) |
| Produced_By | STRING64 NA |
ID of the activity that was executing when the entity was created, for data created programmatically. | No |
VARCHAR2(64) |
| Remarks | STRING2000 NA |
Any type of remarks added to an entity instance. | No |
VARCHAR2(2000) |
| SDAT_Label | int No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Seismic_Line_Id | Seismic_Line |
References the 2D line associated with the line segment. | No |
NUMBER(38) |
| Source | STRING64 NA |
Name of the person or organization responsible for this entity"s E and P content and quality. Not the data technologist or IT expert creating the entity, for which see IT_Object.Insert_User and Update_User. | No |
VARCHAR2(64) |
| Sub_Type | Meta_Entity |
Sub type of Seismic_Line_Segment | No |
VARCHAR2(30) |
| Traces_Per_Gather | int No_Unit |
Number of traces per gather. This is mostly true with prestack data. | No |
NUMBER(10) |
| Update_Date | DATE NA |
Date of the most-recent modification to the entity. | No |
DATE |
| Update_User | STRING64 NA |
The name of the user responsible for the last modification to this entity. | No |
VARCHAR2(64) |
| Version | STRING255 NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Seismic_Line | Seismic_Line | References the 2D line associated with the line segment. | Restrict | No |