Units logbook

Quantity Units How units are written
Pressure Atm atm
bar bar
bara bara
barg barg
kPa kpa
MPa mpa
Pa pa
psi psi
psia psia
psig psig
kgf/cm2 kgf_cm2
Liquid Flowrate bbl/d bbl_d
bbl/h bbl_h
bbl/min bbl_min
ft3/d ft3_d
ft3/h ft3_h
ft3/min ft3_min
ft3/s ft3_s
m3/d m3_d
m3/h m3_h
m3/s m3_s
gpm gpm
L/min l_min
mL/min ml_min
Dynamic Viscosity cp cp
kg/m-h kg_mh
kg/m-s kg_ms
mPa-s mpas
N-s/m2 ns_m2
Pa-s pas
lb/ft-h lb_fth
Area cm2 cm2
ft2 ft2
in2 in2
m2 m2
Density g/cm3 g_cm3
kg/m3 kg_m3
lb/ft3 lb_ft3
lb/in3 lb_in3
Corrosion Rate m/s m_s
m/yr m_y
mm/yr mm_y
mpy mpy
Gas Standard Flowrate MMscf/d mmscf_d
scf/d scf_d
scf/h scf_h
scf/s scf_s
sm3/d sm3_d
sm3/h sm3_h
sm3/s sm3_s
Mscf/d mscf_d
Msm3/d msm3_d
Msm3/h msm3_h
GOR MMscf/sbbl mmscf_sbbl
scf/scf scf_scf
scf/sbbl scf_sbbl
sm3/sm3 sm3_sm3
Kinematic Viscosity cSt cst
ft2/h ft2_h
in2/s in2_s
m2/s m2_s
Mass Flowrate g/s g_s
kg/h kg_h
kg/s kg_s
kt/d kt_d
lb/h lb_h
lb/s lb_s
t/d t_d
Volume ft3 ft3
m3 m3
gal gal
L l
MMft3 mmft3
bbl bbl
cm3 cm3
mL ml
Thermal Conductivity btu/ft-h-R btu_fthr
cal/m-h-K cal_mhk
W/m-C w_mc
W/m-K w_mk
Temperature °C celsius or degC
°F fahrenheit or degF
K rankine or degR
°R kelvin or degK
Temperature Difference dTC dtc
dTF dtf
dTK dtk
dTR dtr
Specific heat Capacity btu/lb-F btu_lbf
btu/lb-R btu_lbr
J/kg-C j_kgc
J/kg-K j_kgk
kJ/kg-C kj_kgc
Energy btu btu
cal cal
J j
Surface Tension dyn/cm dyn_cm
mN/m mn_m
N/m n_m
Molecular Weight kg/kmol kg_kmol
g/mol g_mol
kg/mol kg_mol
lb/lbmol lb_lbmol
Molar Volume cm3/mol cm3_mol
m3/mol m3_mol
L/mol l_mol
ft3/lbmol ft3_lbmol
Angular Velocity rad/sec rad_s
deg/sec deg_s
Angle degree degree or deg
rad rad or radian
Area Per Length in2/ft in2_ft
m2/m m2_m
mm2/m mm2_m
Brine Density g/cm3 g_cm3
kg/m3 kg_m3
lb/ft3 lb_ft3
lb/in3 lb_in3
ppg ppg
mg/L mg_l
Acceleration cm/s2 cm_s2
ft/s2 ft_s2
in/s2 in_s2
m/s2 m_s2
CGR scf/scf scf_scf
sm3/sm3 sm3_sm3
sm3/MMsm3 sm3_mmsm3
sbbl/MMscf sbbl_mmscf
sbbl/scf sbbl_scf
Density Per Pressure kg/m-N kg_mn
s2/m2 s2_m2
Density Per Temperature kg/m3-C kg_m3c
kg/m3-K kg_m3k
Diffusion Coefficient cm2/s cm2_s
m2/s m2_s
mm2/s mm2_s
Distance cm cm
ft ft
in in
km km
m m
mi mi
mm mm
yd yd
Enthalpy btu btu
cal cal
J j
Enthalpy Per Mass btu/lb btu_lb
J/kg j_kg
kJ/kg kj_kg
Enthalpy Per Mol btu/lbmol btu_lbmol
cal/mol cal_mol
J/mol j_mol
Enthalpy Per Volume btu/ft3 btu_ft3
cal/m3 cal_m3
J/m3 j_m3
Enthalpy per mole per Temperature btu/lbmol-R btu_lbmolr
J/mol-K j_molk
Entropy btu/R btu_r
cal/K cal_k
J/K j_k
Entropy Per Mass btu/lb-F btu_lbf
J/kg-C j_kgc
kJ/kg-C kj_kgc
Entropy Per Mol btu/lbmol-R btu_lbmolr
cal/mol-K cal_molk
J/mol-K j_molk
Entropy Per Volume btu/ft3-R btu_ft3r
cal/m3-K cal_m3k
J/m3-K j_m3k
Erosion Rate in/yr in_y
mm/yr mm_y
in/kyr in_kyr
Force dyn dyn or dyne
kgf kgf
N newton
lbf lbf
Fraction ppm ppm
ppb ppb
Frequency Hz hz
1/h one_h
1/min one_m
1/s one_s
Friction Factor N-s/m ns_m
g/s g_s
kg/h kg_h
kg/s kg_s
kt/d kt_d
lb/h lb_h
lb/s lb_s
t/d t_d
Gas Flowrate bbl/d bbl_d
bbl/h bbl_h
bbl/min bbl_min
ft3/d ft3_d
ft3/h ft3_h
ft3/min ft3_min
ft3/s ft3_s
m3/d m3_d
m3/h m3_h
m3/s m3_s
gpm gpm
L/min l_min
mL/min ml_min
GLR MMscf/sbbl mmscf_sbbl
scf/scf scf_scf
scf/sbbl scf_sbbl
sm3/sm3 sm3_sm3
Heat Flux btu/ft2-s btu_ft2s
btu/in2-s btu_in2s
kW/m2 kw_m2
W/cm2 w_cm2
W/m2 w_m2
Heat Transfer Coefficient btu/ft2-h-F btu_ft2hf
cal/m2-h-C cal_m2hc
W/m2-C w_m2c
W/m2-K w_m2k
Heat Transfer Per Length btu/s-ft btu_sft
kW/m kw_m
W/m w_m
Length cm cm
ft ft
in in
km km
m m
mi mi
mm mm
yd yd
Linear Momentum kg-m/s kgm_s
N-s ns
Liquid Standard Flowrate sm3/d sm3_d
sm3/h sm3_h
sm3/s sm3_s
sbbl/d sbbl_d
sbbl/h sbbl_h
sbbl/min sbbl_min
Mass g g
kg kg
mg mg
kt kt
kips kips
oz oz
lb lb
t t
Mass Flowrate Per Area kg/h-m2 kg_hm2
kg/h-cm2 kg_hcm2
kg/s-m2 kg_sm2
lb/h-m2 lb_hm2
lb/s-m2 lb_sm2
mg/h-in2 mg_hin2
Mass Gradient g/cm g_cm
g/ft g_ft
g/in g_in
g/m g_m
kg/m kg_m
lb/ft lb_ft
lb/in lb_in
Mass Moment Of Inertia kg-m2 kgm2
lb-ft2 lbft2
lbf-in-s2 lbfins2
lb-in2 lbin2
Mass Per Area g/cm2 g_cm2
g/ft2 g_ft2
g/in2 g_in2
g/m2 g_m2
kg/ft2 kg_ft2
kg/m2 kg_m2
Molar Concentration Gradient mol/cm4 mol_cm4
mol/m4 mol_m4
lbmol/ft4 lbmol_ft4
Molar Density mol/cm3 mol_cm3
mol/m3 mol_m3
mol/L mol_l
lbmol/ft3 lbmol_ft3
Molar Flux kmol/m2-s kmol_m2s
mol/m2-s mol_m2s
Molar Rate kmol/s kmol_s
mol/s mol_s
lbmol/s lbmol_s
Mole Density Per Temperature mol/m3-K mol_m3k
Moles kmol kmol
mol mol
lbmol lbmol
One Over Flowrate d/bbl d_bbl
min/bbl min_bbl
d/ft3 d_ft3
h/ft3 h_ft3
s/ft3 s_ft3
d/m3 d_m3
h/m3 h_m3
s/m3 s_m3
One Over Lenghth 1/cm one_cm
1/ft one_ft
1/km one_km
1/m one_m
1/mi one_mi
1/mm one_mm
One Over Standard Flowrate d/MMscf d_mmscf
d/MMsm3 d_mmsm3
s/MMscf s_mmscf
d/scf d_scf
s/scf s_scf
d/sm3 d_sm3
s/sm3 s_sm3
Power btu/h btu_h
hp hp
kW kw
mW mw
W w
Pressure Difference atm atm
bar bar
kPa kpa
Pa pa
psi psi
Pressure Gradient psi/ft psi_ft
kPa/m kpa_m
Pa/m pa_m
bar/m bar_m
Rate Of Change Of Density kg/m3-s kg_m3s
Rate Of Change Of Pressure pa/s pa_s
Rate Of Change Of Temperature F/s f_s
C/s c_s
K/s k_s
R/s r_s
C/min c_m
F/min f_m
C/h c_h
F/h f_h
Revolutions Per Time rpm rpm
Specific Capacity ft3/R ft3_r
m3/R m3_r
Specific Enthalpy btu/lb btu_lb
cal/kg cal_kg
J/kg j_kg
J/g j_g
kJ/kg kj_kg
Specific Mole mol/g mol_g
mol/kg mol_kg
lbmol/lb lbmol_lb
Specific Volume cm3/g cm3_g
ft3/lb ft3_lb
in3/lb in3_lb
m3/kg m3_kg
Standard Volume scm3 scm3
MMscf mmscf
sgal sgal
sL sl
scf scf
sm3 sm3
sbbl sbbl
Mscf mscf
Msm3 msm3
Standard Volumetric Flowrate MMscf/d mmscf_d
scf/d scf_d
scf/h scf_h
scf/s scf_s
sm3/d sm3_d
sm3/h sm3_h
sm3/s sm3_s
sbbl/d sbbl_d
sbbl/h sbbl_h
sbbl/min sbbl_min
Mscf/d mscf_d
Msm3/d msm3_d
Msm3/h msm3_h
Standard Volumetric Flowrate Per Length sbbl/d/ft sbbl_d_ft
m2/s m2_s
mm2/s mm2_s
cm2/s cm2_s
Temperature Gradient F/ft f_ft
Thermal Expansion 1/C one_c
1/F one_f
1/K one_k
1/R one_r
Time d d or day
h h or hour
ms ms
min min or minute
s s or second
yr y or year
Torque ft-lb ftlb
mN-m mnm
N-cm ncm
N-m nm
Velocity ft/h ft_h
ft/s ft_s
m/h m_h
m/s m_s
mph mph
in/h in_h
in/s in_s
km/s km_s
km/h km_h
Volumetric Flowrate bbl/d bbl_d
bbl/h bbl_h
bbl/min bbl_m
ft3/d ft3_d
ft3/h ft3_h
ft3/min ft3_m
ft3/s ft3_s
m3/d m3_d
m3/h m3_h
m3/s m3_s
gpm gpm
L/min l_m
mL/min ml_m
Wax Volume bbl bbl
cm3 cm3
ft3 ft3
m3 m3
gal gal
L l