Lithology

[Columns] [Composed Of] [Referenced By] [Refers To]

General Information

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Name Lithology
Entity Type Table
Description A description of the origin, form, composition, and genesis of rock samples. Both free-text and structured (i.e., code-based) descriptions of lithology, fabric, sedimentary structures, digenesis, and visible porosity can be specified. The description may apply to the rock as a whole or to a rock sample fraction. All attributes of the description are considered part of a cohesive narrative.
Submodel Rock_Sample_Description
Entity Scope Project
Primary Key Id
Natural Key
Generalizations Entity , IT_Object , Tracked_Object
Specializations


Columns

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NameValue DomainProperty /
Storage Unit		DescriptionRequired /
Default		Type
Author USER_NAME NA
 The author of the rock sample description. The geologist who specified the data in this record. No
 VARCHAR2(255)
Depositional_Environment R_Depositional_Environ
A value that represents the environment of deposition of the rock sample. 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)
Fracture_Condition R_Fracture_Condition
The name of the fracture condition observed in the rock sample. A fracture condition is used to describe the fracture state of a rock sample. Examples include, CLOSED, OPEN and VUGGY. No
 VARCHAR2(64)
Fracture_Geometry R_Fracture_Geometry
The name of the fracture geometry observed in the rock sample. A fracture geometry is used to describe the geometry of a fracture in a rock sample. Examples include LINEAR and PLANAR. No
 VARCHAR2(64)
Fracture_Origin R_Fracture_Origin
The name of the observed fracture origin. A fracture origin is used to describe the cause of a fracture in a rock sample. Examples include, HYDRAULIC, INDUCED and NATURAL. No
 VARCHAR2(64)
Framework_Percent double Percent
%		 Volume of framework expressed as a percent. No
 NUMBER
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_Layer_Id Geologic_Layer
The geologic layer associated with this lithology. No
 NUMBER(38)
Grain_Rounding R_Grain_Rounding
A value that represents the grain rounding of the rock sample. No
 VARCHAR2(64)
Grain_Sorting R_Grain_Sorting
A value that represents the grain sorting of the rock sample. No
 VARCHAR2(64)
Grain_Sphericity R_Grain_Sphericity
A value that represents the type of grain sphericity in the rock sample. 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)
Litho_Zone_Fraction_Id Litho_Zone_Fraction
The lithologic zone fraction that these descriptions reference. No
 NUMBER(38)
Lithologic_Log_Id Lithologic_Log
The descriptive record of lithology. No
 NUMBER(38)
Lithology_Base_Depth double Depth
m		 Base depth of a lithology description interval, as measured by its original acquisition method. No
 NUMBER
Lithology_Desc_Date DATE NA
 The date when the lithology was described. No
 DATE
Lithology_Top_Depth double Depth
m		 Top depth of a lithology description interval, as measured by its original acquisition method. No
 NUMBER
Lithology_Type R_Lithology
A value that represents the predominant lithology of the sample. Examples include Sandstone, Shale, Limestone. Yes
 VARCHAR2(64)
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)
Porosity_Length double Length
m		 A measurement that represents the sum of the visually observable porous interval lengths within this sample. No
 NUMBER
Primary_Age CODE NA
 Age code for top formation of cored interval. No
 VARCHAR2(64)
Primary_Form CODE NA
 Top formation of cored interval. No
 VARCHAR2(64)
Primary_Porosity R_Porosity
A value that represents the primary type of porosity that was visually observed in this sample. Example values are; Intergranular and Fenestral. Many authors reserve primary porosity types to those related to depositional processes. 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)
Rock_Matrix R_Rock_Matrix
A value that represents the matrix of the rock sample. No
 VARCHAR2(64)
Rock_Matrix_Percent double Percent
%		 Rock matrix volume expressed as a percent. No
 NUMBER
Rock_Profile STRING32 NA
 Identifies the type of rock weathering or borehole profile associated with the particular described interval. Examples of the rock profiles can be recessive, cliff, etc. (PPDM 3.7) No
 VARCHAR2(32)
Rock_Pty_Set_Id Rock_Pty_Set
The rock property set that the lithologic description references. No
 NUMBER(38)
Rock_Sample_Fraction_Id Rock_Sample_Fraction
The rock sample fraction that these descriptions reference. No
 NUMBER(38)
Rock_Sample_Id Rock_Sample
A number that uniquely identifies the rock sample described by the rock sample description. No
 NUMBER(38)
SDAT_Label int No_Unit
 Label used by the security system for entitlements. SDAT is Secure Data Access Technology. No
 NUMBER(10)
Sample_Hardness R_Sample_Hardness
The name the sample hardness that describes this rock sample. A sample hardness is used to describe the level of induration of a rock sample. Examples include, HARD, INDURATED, CONSOLIDATED, FRIABLE and UNCONSOLIDATED. No
 VARCHAR2(64)
Secondary_Porosity R_Porosity
A value that represents the secondary type of porosity that was visually observed in this sample. Example values are; Solution and Fracture. Many authors reserve secondary porosity types to those related to post-depositional processes. No
 VARCHAR2(64)
Solid_Hydrocarbon_Percent double Percent
%		 Volume of hydrocarbons expressed as a percent. No
 NUMBER
Solid_Hydrocarbon_Type STRING32 NA
 The type of solid hydrocarbon type such as pyrobitumen. No
 VARCHAR2(32)
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)
Thin_Bed_Flag boolean NA
 A flag indicating if the described interval contains thinner rock intervals. For example, a lithologic interval may be comprised of interbedded shale and sandstone setting the thin bed indicator to 1. No
 NUMBER(1)
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)


Composed Of

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CardinalityEntity
One Lithology_Remarks


Referenced By

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From EntityLinkDescriptionImplementation TechniqueRequired
Lithologic_Color Lithology The lithology to which the color description applies. Cascade Yes
Lithologic_Diagenesis Lithology The lithologic description of which the description of diagenesis is a part. Cascade Yes
Lithologic_Grain_Size Lithology The lithology to which the grain size description applies. Cascade Yes
Lithologic_Porosity Lithology The major rock description of which this porosity description is a part. Cascade No
Lithology_CaCO3_Grains Lithology The rock description that these carbonate particles reference. Cascade No
Lithology_Minerals Lithology The rock description that these minerals reference. Cascade No
Lithology_Sed_Structures Lithology The rock description that these sedimentary structures reference. Cascade No
Sample_Show_Desc Lithology The description of the show used in the description of lithology. Cascade No


Refers To

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LinkTo EntityDescriptionImplementation TechniqueRequired
Lithologic_Log Lithologic_Log The descriptive record of lithology. Restrict No
Fracture_Geometry R_Fracture_Geometry The name of the fracture geometry observed in the rock sample. A fracture geometry is used to describe the geometry of a fracture in a rock sample. Examples include LINEAR and PLANAR. Restrict No
Rock_Pty_Set Rock_Pty_Set The rock property set that the lithologic description references. Cascade No
Rock_Sample Rock_Sample A number that uniquely identifies the rock sample described by the rock sample description. Cascade No
Rock_Sample_Fraction Rock_Sample_Fraction The rock sample fraction that these descriptions reference. Cascade No
Sample_Hardness R_Sample_Hardness The name the sample hardness that describes this rock sample. A sample hardness is used to describe the level of induration of a rock sample. Examples include, HARD, INDURATED, CONSOLIDATED, FRIABLE and UNCONSOLIDATED. Restrict No
Secondary_Porosity R_Porosity A value that represents the secondary type of porosity that was visually observed in this sample. Example values are; Solution and Fracture. Many authors reserve secondary porosity types to those related to post-depositional processes. Restrict No
Litho_Zone_Fraction Litho_Zone_Fraction The lithologic zone fraction that these descriptions reference. Cascade No
Grain_Sorting R_Grain_Sorting A value that represents the grain sorting of the rock sample. Restrict No
Grain_Rounding R_Grain_Rounding A value that represents the grain rounding of the rock sample. Restrict No
Geologic_Layer Geologic_Layer The geologic layer associated with this lithology. Nullify No
Fracture_Origin R_Fracture_Origin The name of the observed fracture origin. A fracture origin is used to describe the cause of a fracture in a rock sample. Examples include, HYDRAULIC, INDUCED and NATURAL. Restrict No
Primary_Porosity R_Porosity A value that represents the primary type of porosity that was visually observed in this sample. Example values are; Intergranular and Fenestral. Many authors reserve primary porosity types to those related to depositional processes. Restrict No
Lithology_Type R_Lithology A value that represents the predominant lithology of the sample. Examples include Sandstone, Shale, Limestone. Restrict Yes
Rock_Matrix R_Rock_Matrix A value that represents the matrix of the rock sample. Restrict No
Depositional_Environment R_Depositional_Environ A value that represents the environment of deposition of the rock sample. Restrict No
Fracture_Condition R_Fracture_Condition The name of the fracture condition observed in the rock sample. A fracture condition is used to describe the fracture state of a rock sample. Examples include, CLOSED, OPEN and VUGGY. Restrict No
Grain_Sphericity R_Grain_Sphericity A value that represents the type of grain sphericity in the rock sample. Restrict No


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