| Name | Stratigraphic_Layer |
|---|---|
| Entity Type | View |
| Description | A stratigraphic rock feature. This may include any of the formally defined disciplines in stratigraphy, including Lithostratigraphy, Sequence Stratigraphy, Chronostratigraphy, and Biostratigraphy. |
| Submodel | Geology |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | Standard_Layer_Name , Strat_Layer_Unit , Name , Source , Existence_Kind , Version |
| Generalizations | Geologic_Layer , Geologic_Feature , Feature , Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Base_Strat_Surface_Id | Stratigraphic_Surface |
|
Reference to the unique identifier of the base bounding surface. | No |
NUMBER(38) |
| Default_Color | COLOR_RGB | NA |
Default color to be used when rendering this geologic feature. | No |
VARCHAR2(64) |
| 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) |
| Fauna | R_Fauna |
|
The fauna found in this geologic layer. | No |
VARCHAR2(64) |
| Field_Id | Field |
|
Association between Field and Geologic_Layer | No |
NUMBER(38) |
| GUID | STRING128 | NA |
Globally Unique IDentifier for an instance of a class. USAGE NOTES: There are two cases: 1) GUID is not populated or used; and 2) it is populated with a value that is globally unique. If the GUID is populated there are two means of doing so for a given project: 2a) Seabed automatically generates and populates the GUID when an instance is created (valid only on Oracle based systems); and 2b) the GUID is generated and populated by an application (other than Seabed) on instance creation. Whether Seabed automatically generates GUIDs for a project is determined by the Auto_GUID flag in SDS_Account. Note that techniques 2a and 2b can coexist in the same project. When GUIDs are automatically generated an application can override the automatically generated GUID with its own GUID by simply supplying the GUID value. Applications that generate their own GUIDs and populate the GUID column will function correctly on projects which have automatic GUID generation turned on. | No |
VARCHAR2(128) |
| Geologic_Age | double | Geologic_Time Ma |
The minimum geologic age of the feature in millions of years. | No |
NUMBER |
| Geologic_Age_Duration | double | Geologic_Time Ma |
The duration of the geologic event. | No |
NUMBER |
| Hydrocarbon_System_Role | CODE | NA |
The characteristic role this geologic unit portrays in hydrocarbon system. The roles include, source, carrier, reservoir, seal or combination. | No |
VARCHAR2(64) |
| 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) |
| Lithologic_Description | STRING255 | NA |
A free text description of the lithology or mix of assorted Lithology contained in this layer. | No |
VARCHAR2(255) |
| 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) |
| 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) |
| Primary_Lithology | R_Lithology |
|
The primary lithology that defines this Geologic Layer. An example is Chalk for the Austin Chalk Formation. | No |
VARCHAR2(64) |
| Produced_By | STRING64 | NA |
The name of application role that created the entity, 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) |
| Source | STRING64 | NA |
Name of the person or organization responsible for this entitys 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) |
| Standard_Layer_Name | R_Geologic_Layer |
|
The standard or formal geologic layer name. For lithostratigraphy this will be the identifier of the formation name. An example is Austin for the Austin Chalk Formation. | No |
VARCHAR2(64) |
| Strat_Layer_Unit | R_Stratigraphic_Rank |
|
The unit or rank of the stratigraphic horizon in the stratigraphic hierarchy. For example Group, Formation, Member or Bed for Lithostratigraphy; Assemblage Zone, Range Zone or Concurrent Range Zone for Biostratigraphy and System, Series or Stage for Chronostratigraphy. | No |
VARCHAR2(64) |
| Strat_Scope | NUMBER | NA |
Stratigraphic Scope Identifier | No |
NUMBER |
| Sub_Type | Meta_Entity |
|
Sub type of Geologic_Layer | No |
VARCHAR2(30) |
| Top_Strat_Surface_Id | Stratigraphic_Surface |
|
Reference to the unique identifier of the top bounding surface. | No |
NUMBER(38) |
| Type_Locality_Id | Position |
|
A type locality is the place where the geologic layer is best known or most clearly defined. | No |
NUMBER(38) |
| 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) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Zone_DOV | Geologic_Layer | READ ONLY: Unique identifier for the geologic layer. | Cascade | No |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Strat_Layer_Unit | R_Stratigraphic_Rank | The unit or rank of the stratigraphic horizon in the stratigraphic hierarchy. For example Group, Formation, Member or Bed for Lithostratigraphy; Assemblage Zone, Range Zone or Concurrent Range Zone for Biostratigraphy and System, Series or Stage for Chronostratigraphy. | Restrict | No |
| Type_Locality | Position | _ | Control | No |
| Standard_Layer_Name | R_Geologic_Layer | _ | Restrict | No |
| Top_Strat_Surface | Stratigraphic_Surface | _ | Restrict | No |
| Field | Field | _ | Cascade | No |
| Fauna | R_Fauna | _ | Restrict | No |
| Base_Strat_Surface | Stratigraphic_Surface | _ | Restrict | No |
| Primary_Lithology | R_Lithology | _ | Restrict | No |