Seismic_Acquisition_Act

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

Name	Seismic_Acquisition_Act
Entity Type	Abstract
Description	A process undertaken for the purpose of obtaining seismic data.
Submodel	Seismic
Entity Scope	Project
Primary Key	Id
Natural Key	Name , Existence_Kind , Version
Generalizations	Activity , Entity , IT_Object , Tracked_Object
Specializations	Acquisition_2D , Acquisition_3D

Columns

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Name	Value Domain / Measurement	Description	Required / Default	Type
Acquisition_Data_Type	R_Acquisition_Data	Refers to type of data stored with seismic acquisition.	No	VARCHAR2(64)
Acquisition_Format	R_Seismic_Format	Defines the seismic or navigation format associated with the acquisition. For Ex: SEGD, UKOOA_P2.	No	VARCHAR2(64)
Acquisition_Method	R_Acquisition_Method	The method used to acquire the data. Examples are Ocean Bottom Cable (OBC), Conventional Cable, and Radio Telemetry.	No	VARCHAR2(64)
Activity_State	STRING64 NA	The current state, or status, of the activity. Activity state is a refinement of the lifecycle indicator Existence_Kind. For example, a drilling job whose Existence_Kind is "Actual" could have an activity state of "turning to the right", "suspended due to weather", or "tool makeup or breakdown". An activity whose Existence_Kind is "Required" could have State values like "under investigation", "proposed" and "AFE approved". Note: The valid list of activity states will vary from one kind of activity to another, so the values entered into this column are not validated via a lookup table.	No	VARCHAR2(64)
Activity_Template_Id	Activity_Template	The Activity is an activation of, and is characterized by the associated Activity_Template.	No	NUMBER(38)
Auxiliary_Channel_Count	double No_Unit	The number of non-data channels recorded during acquisition.	No	NUMBER
Cable_Depth	double Depth	Nominal depth of cables maintained during survey.	No	NUMBER
Cable_Length	double Length	The length of the seismic cables used in acquisition.	No	NUMBER
Charge_Per_Hole	double Mass	The amount of explosive charge used per shot hole. Several shot holes may be drilled for each shotpoint.	No	NUMBER
Contract_Number	STRING64 NA	A number assigned to the contract, such as an AFE number.	No	VARCHAR2(64)
Cost	double No_Unit	The total cost of the acquisition.	No	NUMBER
Cost_Currency	R_Currency	The currency in which the costs related to the acquisition are expressed.	No	VARCHAR2(64)
End_Date	DATE NA	The date and time at which the activity will end or did end. For planned activities, this would be expected end date.	No	DATE
Energy_Source_Count	int No_Unit	The number of sources used for acquisition.	No	NUMBER(10)
Energy_Source_Depth	double Depth	The depth of the energy source.	No	NUMBER
Energy_Source_Spacing	double Length	Separation between the sources in an array.	No	NUMBER
Energy_Source_System	R_Energy_Source_System	Refers to the energy source system used for the acquisition.	No	VARCHAR2(64)
Energy_Sweep_Duration	double Time	The duration of the Vibroseis sweep. (PPDM 3.7)	No	NUMBER
Environment	R_Seismic_Environment	The environment in which the seismic data was acquired, such as marine or land.	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)
External_Reference	STRING64 NA	A value that is used by an external organization to reference this activity. For example, if an external organization is hired to perform this activity, this column could be used to store the work order or purchase order number that organization uses to reference this activity.	No	VARCHAR2(64)
Far_Receiver_Distance	double Length	The distance from the shotpoint to the farthest receiver.	No	NUMBER
Field_Test_Date	DATE NA	The date that the field tests used to determine the acquisition parameters were run.	No	DATE
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)
Group_Channel_Count	int No_Unit	The number of channels per receiver group.	No	NUMBER(10)
High_Filter_Frequency	double Frequency	The high frequency cutoff value of the filter used during acquisition.	No	NUMBER
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)
Internal_Reference	STRING64 NA	A value that is used internally within the organization to reference this activity.	No	VARCHAR2(64)
Lateral_Control_Method	STRING32 NA	A description of the method used to determine shotpoint locations.	No	VARCHAR2(32)
Line_Count	int No_Unit	The number of seismic lines acquired during this activity.	No	NUMBER(10)
Listen_Time	double Time	The duration of the recording time after the end of the Vibroseis sweep.	No	NUMBER
Low_Filter_Frequency	double Frequency	The low frequency cutoff value of the filter used during acquisition.	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)
Navigation_System	R_Navigation_System	Refers to the positioning system used for the acquisition.	No	VARCHAR2(64)
Near_Receiver_Distance	double Length	The distance from the shotpoint to the nearest receiver.	No	NUMBER
Nominal_Shot_Interval	double Length	The nominal distance between consecutive locations where seismic energy was released, or shotpoints	No	NUMBER
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)
Party_Number	STRING64 NA	The seismic crew party number or name.	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)
Purpose	STRING255 NA	A description of purpose of the activity or its stage	No	VARCHAR2(255)
Receiver_Count	int No_Unit	The number of receivers, hydrophones or geophones for example, per receiver group.	No	NUMBER(10)
Receiver_Group_Count	int No_Unit	Number of receiver groups per cable.	No	NUMBER(10)
Receiver_Group_Interval	double Length	Separation between receiver groups.	No	NUMBER
Receiver_Spacing	double Length	The distance between receivers, hydrophones or geophones for example, in a receiver group.	No	NUMBER
Record_Length	int Short_Time	The length of the shot record .	No	NUMBER(10)
Recording_System	R_Recording_System	Refers to the recording system used in acquiring the seismic data.	No	VARCHAR2(64)
Remarks	STRING2000 NA	Any type of remarks added to an entity instance.	No	VARCHAR2(2000)
Replacement_Velocity	double Acoustic_Velocity	Typically the datum velocity for land surveys or the water velocity for marine surveys.	No	NUMBER
SDAT_Label	int No_Unit	Label used by the security system for entitlements. SDAT is Secure Data Access Technology.	No	NUMBER(10)
Sample_Interval	double Short_Time	Seismic acquisition sample interval, in milliseconds.	No	NUMBER
Seismic_Receiver_Type	R_Seismic_Receiver	The type of receiver used in the seismic acquisition activity, such as a hydrophone or geophone.	No	VARCHAR2(64)
Shooting_Direction	double No_Unit	The compass direction in which the survey or line was shot, specified in degrees.	No	NUMBER
Shot_Count	int No_Unit	The number of locations that seismic energy was released, or shotpoints, during this acquisition activity.	No	NUMBER(10)
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)
Spread_Type	R_Seismic_Spread	The type of receiver spread used in seismic acquisition. Examples are Split or Straddle, inline, L-Spread, and T-Spread.	No	VARCHAR2(64)
Start_Date	DATE NA	The date and time at which the activity will start or did start. For planned activities, this would be expected start date.	No	DATE
Sweep_Frequency_High	double Frequency	The high end of the sweep frequency for Vibroseis data.	No	NUMBER
Sweep_Frequency_Low	double Frequency	The low end of the sweep frequency for Vibroseis data.	No	NUMBER
Tape_Density	double No_Unit	The nominal density in bits per inch of the tapes on which the data was recorded during acquisition. It may vary from the tape density of individual inventory items associated with the acquisition activity.	No	NUMBER
Time_Delay_Correction	double Short_Time	The field time delay correction. This is the amount of bulk shift needed to correct for any recording system delays.	No	NUMBER
Total_Acquisition_Charge	double Mass	The total amount of explosive charge used in the acquisition.	No	NUMBER
Total_Area	double Area	The area extent covered by the acquisition.	No	NUMBER
Total_Charge_Size	double Mass	The total amount of explosive charge used per shot for explosive source types.	No	NUMBER
Total_Drill_Depth	double Length	The sum of the depths of all the shot holes drilled for the acquisition.	No	NUMBER
Total_Gun_Pressure	double Pressure	The total gun pressure used per shot for air gun energy sources.	No	NUMBER
Total_Gun_Volume	double Volume	The total gun volume for air gun energy sources.	No	NUMBER
Total_Line_Length	double Length	The sum the lengths of all the lines acquired during this activity.	No	NUMBER
Transaction_Type	R_Seismic_Transaction	The type of seismic transaction that has been arranged, such as sale, trade, lease etc. (PPDM 3.7))	No	VARCHAR2(64)
Transient_Period	R_Transient_Period	Indicates whether the activity is executed daily, monthly, on demand, etc.	No	VARCHAR2(64)
Triggering_Event_Id	Event	The identifier of the event that triggered the start of this activity. Events can trigger activities. For example, an explosion event could trigger a firefighting activity. Note that this value should not conflict with, or be confused with, the value in Activity_Status.Triggering_Event.	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)
Vertical_Control_Method	STRING32 NA	A description of the method used to determine shotpoint elevation.	No	VARCHAR2(32)
Vessel_Name	STRING255 NA	The name of the vessel used in the acquisition.	No	VARCHAR2(255)

Refers To

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Link	To Entity	Description	Implementation Technique	Required
Acquisition_Data_Type	R_Acquisition_Data	Refers to type of data stored with seismic acquisition.	Restrict	No
Triggering_Event	Event	_	Nullify	No
Acquisition_Format	R_Seismic_Format	Defines the seismic or navigation format associated with the acquisition. For Ex: SEGD, UKOOA_P2.	Restrict	No
Cost_Currency	R_Currency	The currency in which the costs related to the acquisition are expressed.	Restrict	No
Energy_Source_System	R_Energy_Source_System	Refers to the energy source system used for the acquisition.	Restrict	No
Environment	R_Seismic_Environment	The environment in which the seismic data was acquired, such as marine or land.	Restrict	No
Navigation_System	R_Navigation_System	Refers to the positioning system used for the acquisition.	Restrict	No
Transaction_Type	R_Seismic_Transaction	The type of seismic transaction that has been arranged, such as sale, trade, lease etc. (PPDM 3.7))	Restrict	No
Spread_Type	R_Seismic_Spread	The type of receiver spread used in seismic acquisition. Examples are Split or Straddle, inline, L-Spread, and T-Spread.	Restrict	No
Seismic_Receiver_Type	R_Seismic_Receiver	The type of receiver used in the seismic acquisition activity, such as a hydrophone or geophone.	Restrict	No
Recording_System	R_Recording_System	Refers to the recording system used in acquiring the seismic data.	Restrict	No
Activity_Template	Activity_Template	_	Restrict	No
Transient_Period	R_Transient_Period	_	Restrict	No
Super_Activity	Activity	_	Assoc to One	No
Fulfilled_Activity	Activity	_	Assoc to Many	No
Acquisition_Method	R_Acquisition_Method	The method used to acquire the data. Examples are Ocean Bottom Cable (OBC), Conventional Cable, and Radio Telemetry.	Restrict	No

[Seabed Objects] [Entities in Schema Seabed] [Index]

Seismic_Acquisition_Act

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