Boundary Output Variables
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Boundary Variables Description ( See also: Variables) WCST,GORST, QGST, QLST, QOST and QWST are given at standard conditions (60 oF, 1 atm). A single stage flash from in-situ to standard conditions has been performed, that is, mass transfer between the phases from in-situ to standard conditions is taken into account. The gas is not dehydrated unless WATERFLASH = OFF. For table-based simulations, OLGA uses the gas mass fractions and densities from the fluid property file to perform the conversion. Note: These variables are CPU demanding for Compositional Tracking simulations since a flash must be performed for each section and time they are plotted, and should be used with care.
Erosional Velocity ratio The erosional velocity ratio (EVR) defined in API RP-14E is: EVR = C-1(EVRVACTUAL)(EVRRHOMIX)1/2 where EVRVACTUAL =|Usg| + |Usl| + |Usd|, EVRRHOMIX = [
g|Usg| +
l(|Usl| + |Usd)|]/(|Usg|+|Usl| + |Usd|),
and C = 100 for U in ft/s and
in Lb/ft3
C = 121.99 for U in m/s and in kg/m3 Here |Usg|, |Usl| and |Usd| denote the absolute value of the superficial velocity for gas, liquid film and liquid droplets respectively. Similarly
g and
l denote the gas and liquid density.
Boundary Variables ( See also: Description)
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Boundary Output Variables
Use as
Name
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Units
Definition
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Boundary Output Variables
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Boundary Variables O|TP|PP|C
ACCGAG
KG
Accumulated gas mass flow
O|TP|PP|C
ACCGAQ
M3
Accumulated gas volume flow
O|TP|PP|C
ACCGT
KG
Accumulated total mass flow
O|TP|PP|C
ACCLIG
KG
Accumulated liquid mass flow
O|TP|PP|C
ACCLIQ
M3
Accumulated liquid volume flow
O|TP|PP|C
ACCOIG
KG
Accumulated oil mass flow
O|TP|PP|C
ACCOIQ
M3
Accumulated oil volume flow
O|TP|PP|C
ACCWAG
KG
Accumulated water mass flow
O|TP|PP|C
ACCWAQ
M3
Accumulated water volume flow
O|TP|PP|C
CFLFACT
NoUnit
Local CFL factor
O|TP|PP|C
CGR
SM3/SM3
O|TP|PP|C
DPZ_GRAV_FACTOR
-
Factor describing the gravity domination of the flow
O|TP|PP|C
DPZA
PA/M
Additional pressure drop gradient
O|TP|PP|C
DPZF
PA/M
Frictional pressure drop gradient
O|TP|PP|C
DPZG
PA/M
Gravitational pressure drop gradient
O|TP|PP|C
DS
NoUnit
Distribution slip ratio
O|TP|PP|C
DUG
M/S2
Time derivative of gas velocity
O|TP|PP|C
DUL
M/S2
Time derivative of liquid velocity
O|TP|PP|C
EVR
NoUnit
Erosional velocity ratio
O|TP|PP|C
EVRRHOMIX
KG/M3
O|TP|PP|C
EVRVACTUAL
M/S
O|TP|PP|C
FRRG
KG/M3-S
Gas wall drift friction factor
O|TP|PP|C
FRRH
KG/M3-S
Oil wall drift friction factor
O|TP|PP|C
FRRW
KG/M3-S
Water wall drift friction factor
O|TP|PP|C
GASMFRBOUN
-
Gas mass fraction at boundary
O|TP|PP|C
GD
KG/S
Droplet mass flow
O|TP|PP|C
GDHL
KG/S
Mass flow rate of oil in droplet field
O|TP|PP|C
GDWT
KG/S
Mass flow rate of water in droplet field
O|TP|PP|C
GG
KG/S
Gas mass flow
O|TP|PP|C
GL
KG/S
Liquid bulk mass flow
O|TP|PP|C
GLHL
KG/S
Mass flow rate of oil in film
O|TP|PP|C
GLRST
SM3/SM3
Gas/liquid ratio at standard conditions
O|TP|PP|C
GLT
KG/S
Total liquid mass flow
O|TP|PP|C
GLTHL
KG/S
Mass flow rate of oil
O|TP|PP|C
GLTWT
KG/S
Mass flow rate of water excluding vapour
O|TP|PP|C
GLWT
KG/S
Mass flow rate of water in film
O|TP|PP|C
GLWV
KG/S
Mass flow rate of water vapour
O|TP|PP|C
GLWVT
KG/S
Total mass flow rate of water including Vapour
Ratio between condensate and dry gas (with water vapour).
Mixed density used in calculation of erosional velocity ratio Actual volume flux used in calculation of erosional velocity ratio.
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Boundary Output Variables
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O|TP|PP|C
GORST
SM3/SM3
Gas/oil ratio at standard conditions
O|TP|PP|C
GORST_DRY
SM3/SM3
O|TP|PP|C
GT
KG/S
Total mass flow
O|TP|PP|C
HOLHLNS
-
No-slip oil volume fraction
O|TP|PP|C
HOLNS
-
No-slip liquid volume fraction
O|TP|PP|C
HOLWTNS
-
No-slip water volume fraction
O|TP|PP|C
HTOT
W
Total Enthalpy flow rate
O|TP|PP|C
ID
NoUnit
O|TP|PP|C
IDWHBUB
NoUnit
Dry gas/oil ratio at standard conditions. Gas does not include water vapour.
Flow regime: 1=Stratified, 2=Annular, 3=Slug, 4=Bubble. Oil/water flowregime indicator for slug bubble: 0=Stratified smooth, 1=Stratified wavy, 2=Dispersed, -1= not applicable. Oil/water flowregime indicator for separated flow:
O|TP|PP|C
IDWHSEP
NoUnit
0=Stratified smooth, 1=Stratified wavy, 2=Dispersed, -1= not applicable. Oil/water flowregime indicator for slug: 0=Stratified
O|TP|PP|C
IDWHSLU
NoUnit
smooth, 1=Stratified wavy, 2=Dispersed, -1= not applicable.
O|TP|PP|C
IKH
NoUnit
Inviscid Kelvin-Helmoltz factor
O|TP|PP|C
INHIBMFRBOUN
-
Inhibitor mass fraction in water at boundary
O|TP|PP|C
LAMTURB_GAS
-
O|TP|PP|C
LAMTURB_OIL
-
O|TP|PP|C
LAMTURB_WATER
-
O|TP|PP|C
MDHLCONV
KG/M3
Specific convective mass of oil droplets
O|TP|PP|C
MDHLSLOPE
KG/M3
Specific mass adjustment of oil droplets
O|TP|PP|C
MDWTCONV
KG/M3
Specific convective mass of water droplets
O|TP|PP|C
MDWTSLOPE
KG/M3
Specific mass adjustment of water droplets
O|TP|PP|C
MGCONV
KG/M3
Specific convective mass of gas
O|TP|PP|C
MGSLOPE
KG/M3
Specific mass adjustment of gas
O|TP|PP|C
MLHLCONV
KG/M3
Specific convective mass of oil in film
O|TP|PP|C
MLHLSLOPE
KG/M3
Specific mass adjustment of oil in film
O|TP|PP|C
MLWTCONV
KG/M3
Specific convective mass of water in film
O|TP|PP|C
MLWTSLOPE
KG/M3
Specific mass adjustment of water in film
O|TP|PP|C
PSID
KG/M3-S
Deposition rate
O|TP|PP|C
PSIE
KG/M3-S
Entrainment rate
O|TP|PP|C
QD
M3/S
Droplet volume flow
O|TP|PP|C
QDHL
M3/S
Volumetric flow rate oil droplets
O|TP|PP|C
QDWT
M3/S
Volumetric flow rate water droplets
O|TP|PP|C
QG
M3/S
Gas volume flow
O|TP|PP|C
QGST
SM3/S
Gas volume flow at standard conditions
Blending parameter between laminar and turbulent flow, gas layer Blending parameter between laminar and turbulent flow, oil layer Blending parameter between laminar and turbulent flow, water layer
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Boundary Output Variables
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Dry gas volume flow at standard conditions. Water
O|TP|PP|C
QGST_DRY
SM3/S
O|TP|PP|C
QL
M3/S
Liquid bulk volume flow
O|TP|PP|C
QLHL
M3/S
Volumetric flow rate oil film
O|TP|PP|C
QLST
SM3/S
Liquid volume flow at standard conditions
O|TP|PP|C
QLT
M3/S
Total liquid volume flow
O|TP|PP|C
QLTHL
M3/S
Volumetric flow rate oil
O|TP|PP|C
QLTWT
M3/S
Volumetric flow rate water
O|TP|PP|C
QLWT
M3/S
Volumetric flow rate water film
O|TP|PP|C
QOST
SM3/S
Oil volume flow at standard conditions
O|TP|PP|C
QT
M3/S
Total volume flow
O|TP|PP|C
QWST
SM3/S
Water volume flow at standard conditions
O|TP|PP|C
QWTST
SM3/S
O|TP|PP|C
SHRHL
1/s
Oil film - shear strain rate
O|TP|PP|C
SHRWT
1/s
Water film - shear strain rate
O|TP|PP|C
SLAG
KG/M3-S
Gas friction coefficient
O|TP|PP|C
SLAI
KG/M3-S
Interfacial friction coefficient
O|TP|PP|C
SLAIGHL
KG/M3-S
Gas/oil film interfacial friction factor
O|TP|PP|C
SLAIHLWT
KG/M3-S
Oil film/water film interfacial friction factor
O|TP|PP|C
SLAIWTG
KG/M3-S
Water film/gas interfacial friction factor
O|TP|PP|C
SLAL
KG/M3-S
Liquid friction coefficient
O|TP|PP|C
SLALHL
KG/M3-S
Oil film wall friction factor
O|TP|PP|C
SLALWT
KG/M3-S
Water film wall friction factor
O|TP|PP|C
SLGH
KG/M3-S
Oil wall friction due to gas
O|TP|PP|C
SLGW
KG/M3-S
Water wall friction due to gas
O|TP|PP|C
SLHG
KG/M3-S
Gas wall friction due to oil
O|TP|PP|C
SLWG
KG/M3-S
Gas wall friction due to water
O|TP|PP|C
STDROG
KG/M3
Standard gas density
O|TP|PP|C
STDROHL
KG/M3
Standard oil density
O|TP|PP|C
STDROWT
KG/M3
Standard water density
O|TP|PP|C
TAUWG
PA
Gas - wall shear stress
O|TP|PP|C
TAUWGA
PA
Gas - average wall shear stress
O|TP|PP|C
TAUWHL
PA
Oil film - wall shear stress
O|TP|PP|C
TAUWHLA
PA
Oil film - average wall shear stress
O|TP|PP|C
TAUWWT
PA
Water film - wall shear stress
O|TP|PP|C
TAUWWTA
PA
Water film - average wall shear stress
O|TP|PP|C
TC_GH
-
Turbulence parameter gas-oil interface, gas side
O|TP|PP|C
TC_HG
-
Turbulence parameter gas-oil interface, oil side
O|TP|PP|C
TC_HW
-
Turbulence parameter oil-water interface, oil side
O|TP|PP|C
TC_WH
-
Turbulence parameter oil-water interface, water side
O|TP|PP|C
TINHIBMFRBOUN
-
Inhibitor mass fraction in water+vapour at boundary
vapour is removed from flow.
Total water (liquid and vapour) volume flow at standard conditions
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Boundary Output Variables
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O|TP|PP|C
TRBPAR_CAP
-
Capilary number from the TURBPAR routine
O|TP|PP|C
TRBPAR_FROUD
-
Froud number from the TURBPAR routine
O|TP|PP|C
TRBPAR_REYG
-
O|TP|PP|C
TRBPAR_REYH
-
O|TP|PP|C
TRBPAR_REYI
-
O|TP|PP|C
TRBPAR_WEB
-
Weber number from the TURBPAR routine
O|TP|PP|C
TWATMFRBOUN
-
Total water mass fraction at boundary
O|TP|PP|C
UD
M/S
Droplet velocity
O|TP|PP|C
UDHL
M/S
Oil droplet velocity
O|TP|PP|C
UDO
M/S
Relative velocity droplets
O|TP|PP|C
UDWT
M/S
Water droplet velocity
O|TP|PP|C
UG
M/S
Gas velocity
O|TP|PP|C
UHLCONT
M/S
Oil continuous velocity
O|TP|PP|C
UL
M/S
Average liquid film velocity
O|TP|PP|C
ULHL
M/S
Oil film velocity
O|TP|PP|C
ULWT
M/S
Water film velocity
O|TP|PP|C
UO
M/S
Relative velocity
O|TP|PP|C
USD
M/S
Superficial velocity total liquid droplets
O|TP|PP|C
USDHL
M/S
Superficial oil droplet velocity
O|TP|PP|C
USDWT
M/S
Superficial water droplet velocity
O|TP|PP|C
USG
M/S
Superficial velocity gas
O|TP|PP|C
USL
M/S
Superficial velocity total liquid film
O|TP|PP|C
USLHL
M/S
Superficial oil film velocity
O|TP|PP|C
USLT
M/S
Superficial velocity liquid (USL+USD)
O|TP|PP|C
USLTHL
M/S
Superficial velocity oil
O|TP|PP|C
USLTWT
M/S
Superficial velocity water
O|TP|PP|C
USLWT
M/S
Superficial water film velocity
O|TP|PP|C
USTOT
M/S
Total volume flux
O|TP|PP|C
UWTCONT
M/S
Water continuous velocity
O|TP|PP|C
VKH
NoUnit
Viscous Kelvin-Helmoltz factor
O|TP|PP|C
WATMFRBOUN
-
Water mass fraction at boundary
O|TP|PP|C
WCST
-
Water cut at standard conditions
O|TP|PP|C
WD
KG/S-M2
Droplet mass flux
O|TP|PP|C
WDHL
KG/S-M2
Mass flux of oil in droplet field
O|TP|PP|C
WDWT
KG/S-M2
Mass flux of water in droplet field
O|TP|PP|C
WG
KG/S-M2
Gas mass flux
O|TP|PP|C
WGR
SM3/SM3
O|TP|PP|C
WL
KG/S-M2
Liquid mass flux
O|TP|PP|C
WLHL
KG/S-M2
Mass flux of oil in film
Reynolds number for gas layer from the TURBPAR routine Reynolds number for oil layer from the TURBPAR routine Reynolds number for gas oil interface from the TURBPAR routine
Ratio between water (including water in gas phase) and dry gas (with water vapour).
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Boundary Output Variables
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O|TP|PP|C
WLWT
KG/S-M2
Mass flux of water in film
O|TP|PP|C
WTOT
KG/S-M2
Total mass flux
O|TP|PP|C
YBOU
M
O|TP|PP|C
ZZBOU
M
Vertical distance from branch inlet boundary to section boundary Distance along the pipeline from branch inlet boundary to section boundary
Link to: Boundary Variables Description Variables
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