Class EmissionsTracker

java.lang.Object

neqsim.process.fielddevelopment.screening.EmissionsTracker

public class EmissionsTracker
extends Object

Emissions tracker for concept-level CO2 intensity estimation.

Estimates greenhouse gas emissions based on:

• Power consumption (compression, pumping, etc.)
• Flaring and venting
• Fugitive emissions
• CO2 from produced fluids (if vented)

Provides CO2 intensity metrics (kg CO2e per boe) for concept comparison.

Version:

1.0

Author:

ESOL

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	EmissionsTracker.EmissionsReport	Emissions report from screening.

Field Summary

Fields

Modifier and Type	Field	Description
private static final double	BASE_FACILITY_MW
private static final double	CO2_REMOVAL_MW_PER_PERCENT
private static final double	COMPRESSION_MW_PER_STAGE
private static final double	FLARE_EFFICIENCY
private static final double	FLARE_KG_CO2_PER_SM3
private static final double	FUGITIVE_PERCENT
private static final double	GAS_TURBINE_KG_CO2_PER_MWH
private static final double	GRID_POWER_KG_CO2_PER_MWH
private static final double	MEG_REGEN_MW
private static final double	METHANE_GWP
private static final double	TEG_REGEN_MW

Constructor Summary

Constructors

Constructor	Description
EmissionsTracker()	Creates a new emissions tracker.

Method Summary

Modifier and Type	Method	Description
EmissionsTracker.EmissionsReport	estimate(FieldConcept concept, FacilityConfig facilityConfig)	Estimates emissions for a concept with facility configuration.
private double	estimateAnnualVentedCO2(FieldConcept concept, double gasProductionSm3d)
private double	estimateFlaringEmissions(FieldConcept concept, FacilityConfig facilityConfig)
private double	estimateFugitiveEmissions(double productionSm3d)
LifecycleEmissionsProfile	estimateLifecycle(FieldConcept concept, FacilityConfig facilityConfig, Map<Integer,Double> productionProfile)	Estimates lifecycle emissions from an annual production profile.
private double	estimatePowerConsumption(FieldConcept concept, FacilityConfig facilityConfig)
private double	estimateVentedCO2(FieldConcept concept, FacilityConfig facilityConfig)
private double	getAnnualGasProductionSm3d(FieldConcept concept, double annualProduction, boolean gasConcept)
private double	getAnnualProductionBoe(FieldConcept concept)
private double	getAnnualProductionBoe(FieldConcept concept, double annualProduction, boolean gasConcept)
private double	getEmissionFactor(InfrastructureInput.PowerSupply powerSupply)
private double	getProductionRate(FieldConcept concept)
private boolean	isGasConcept(FieldConcept concept)
EmissionsTracker.EmissionsReport	quickEstimate(FieldConcept concept)	Quick emissions estimate without detailed facility config.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

GAS_TURBINE_KG_CO2_PER_MWH

private static final double GAS_TURBINE_KG_CO2_PER_MWH

See Also:

• Constant Field Values

GRID_POWER_KG_CO2_PER_MWH

private static final double GRID_POWER_KG_CO2_PER_MWH

See Also:

• Constant Field Values

FLARE_EFFICIENCY

private static final double FLARE_EFFICIENCY

See Also:

• Constant Field Values

FLARE_KG_CO2_PER_SM3

private static final double FLARE_KG_CO2_PER_SM3

See Also:

• Constant Field Values

FUGITIVE_PERCENT

private static final double FUGITIVE_PERCENT

See Also:

• Constant Field Values

METHANE_GWP

private static final double METHANE_GWP

See Also:

• Constant Field Values

COMPRESSION_MW_PER_STAGE

private static final double COMPRESSION_MW_PER_STAGE

See Also:

• Constant Field Values

TEG_REGEN_MW

private static final double TEG_REGEN_MW

See Also:

• Constant Field Values

MEG_REGEN_MW

private static final double MEG_REGEN_MW

See Also:

• Constant Field Values

CO2_REMOVAL_MW_PER_PERCENT

private static final double CO2_REMOVAL_MW_PER_PERCENT

See Also:

• Constant Field Values

BASE_FACILITY_MW

private static final double BASE_FACILITY_MW

See Also:

• Constant Field Values

Constructor Details

EmissionsTracker

public EmissionsTracker()

Creates a new emissions tracker.

Method Details

estimate

public EmissionsTracker.EmissionsReport estimate(FieldConcept concept,
 FacilityConfig facilityConfig)

Estimates emissions for a concept with facility configuration.

Parameters:

concept - field concept

facilityConfig - facility configuration

Returns:

emissions report

quickEstimate

public EmissionsTracker.EmissionsReport quickEstimate(FieldConcept concept)

Quick emissions estimate without detailed facility config.

Parameters:

concept - field concept

Returns:

emissions report

estimateLifecycle

public LifecycleEmissionsProfile estimateLifecycle(FieldConcept concept,
 FacilityConfig facilityConfig,
 Map<Integer,Double> productionProfile)

Estimates lifecycle emissions from an annual production profile.

The calculation scales compression and utility power with production load while keeping a fixed base-load component. Flaring, fugitive emissions, and vented CO2 are calculated from annual gas throughput, so emissions follow decline profiles rather than a single annual screening value.

Parameters:

concept - field concept

facilityConfig - facility configuration

productionProfile - annual production profile in Sm3/year for gas or bbl/year for oil

Returns:

lifecycle emissions profile

estimatePowerConsumption

private double estimatePowerConsumption(FieldConcept concept,
 FacilityConfig facilityConfig)

getEmissionFactor

private double getEmissionFactor(InfrastructureInput.PowerSupply powerSupply)

estimateFlaringEmissions

private double estimateFlaringEmissions(FieldConcept concept,
 FacilityConfig facilityConfig)

estimateFugitiveEmissions

private double estimateFugitiveEmissions(double productionSm3d)

estimateVentedCO2

private double estimateVentedCO2(FieldConcept concept,
 FacilityConfig facilityConfig)

getProductionRate

private double getProductionRate(FieldConcept concept)

getAnnualProductionBoe

private double getAnnualProductionBoe(FieldConcept concept)

isGasConcept

private boolean isGasConcept(FieldConcept concept)

getAnnualGasProductionSm3d

private double getAnnualGasProductionSm3d(FieldConcept concept,
 double annualProduction,
 boolean gasConcept)

estimateAnnualVentedCO2

private double estimateAnnualVentedCO2(FieldConcept concept,
 double gasProductionSm3d)

getAnnualProductionBoe

private double getAnnualProductionBoe(FieldConcept concept,
 double annualProduction,
 boolean gasConcept)