Line Graph Mnemonic

The variable names are mnemonics that help to identify the location and variable types. In general, a variable name, is made of four components:

• ‘f’, ‘w’, ‘aaq’, ‘r:’ Is field, well, aquifer, region quantity

• ‘o’, ‘g’, ‘w’ or ‘s’ : Is oil, gas, water or solvent quantity

• ‘p’ or ‘i’ : Is production or injection quantity

• ‘r’ or ‘t’ : Is rate or total

These quantities are normally in surface volume terms. So rates are in \(sm^3/\mbox{day}\) (surface cubic meters) and totals are in \(sm^3\). However, some quantities, such as those for the CO₂ trapping analysis, are expressed in mass terms (kg).

In the mass case, an extra ‘m’ is included in the mnemonic. For example, fgip is the gas in place expressed in \(sm^3\) (surface cubic meters), and fgmip is the gas mass in place expressed in kg.

The tables below list the output variables. These are in lower cases in the mass files and in capital cases in in the ECLIPSE summary files.

The sign convention for the variable in the tables follows the convention:

• Producer: positive production

• Injector: positive injection

All quantities that can be output for line graph processing are explicitly spelled out below, grouped by field, aquifer and region:

Field and Well Quantities

For the gas component parition (e.g. trapped CO₂, CO₂ dissolved in brine, etc.):

Field
fgmip	Field gas mass in place
fgmgp	Field gas mass in the gas phase
fgmds	Field gas mass dissolved in the aqueous phase
fgmtr	Maximum potential gas mass trapped in gas phase
fgmmo	Field gas mass in the mobile gas phase
fgmst	Field mass gas stranded in the gas phase (a.k.a residual trapping)
fgmus	Field mass gas unstranded in the gas phase.

Note that these variables are currently available only in the ECLIPSE summary file when running the GAS_WATER mode.

For Water:

Field		Well
fwpr	Field water production rate	wwpr	Well water production rate
fwmpr	Field water mass production rate	wwmpr	Well water mass production rate
fwmpt	Field water mass production total	wwmpt	Well water mass production total
fwir	Field water injection rate	wwir	Well water injection rate
fwmir	Field water mass injection rate	wwmir	Well water mass injection rate
fwit	Field water injection total	wwit	Well water injection total
fwmit	Field water mass injection total	wwmit	Well water mass injection total

For Oil:

Field		Well
fopr	Field oil production rate	wopr	Well oil production rate
fompr	Field oil mass production rate	wompr	Well oil mass production rate
fompt	Field oil mass production total	wompt	Well oil mass production total
foir	Field oil injection rate	woir	Well oil injection rate
fomir	Field oil mass injection rate	womir	Well oil mass injection rate
foit	Field oil injection total	woit	Well oil injection total
fomit	Field oil mass injection total	womit	Well oil mass injection total

For Gas:

Field		Well
fgpr	Field gas production rate	wgpr	Well gas production rate
fgmpr	Field gas mass production rate	wgmpr	Well gas mass production rate
fgmpt	Field gas mass production total	wgmpt	Well gas mass production total
fgir	Field gas injection rate	wgir	Well gas injection rate
fgmir	Field gas mass injection rate	wgmir	Well gas mass injection rate
fgit	Field gas injection total	wgit	Well gas injection total
fgmit	Field gas mass injection total	wgmit	Well gas mass injection total

For Solvent:

Field		Well
fnpr	Field solvent production rate	wnpr	Well solvent production rate
fsmpr	Field solvent mass production rate	wsmpr	Well solvent mass production rate
fsmpt	Field solvent mass production total	wsmpt	Well solvent mass production total
fnir	Field solvent injection rate	wnir	Well solvent injection rate
fsmir	Field solvent mass injection rate	wsmir	Well solvent mass injection rate
fnit	Field solvent injection total	wnit	Well solvent injection total
fsmit	Field solvent mass injection total	wsmit	Well solvent mass injection total

Water cut and gas-oil ratio:

Field		Well
fgor	Field production gas-oil ratio	wgor	Well production gas-oil ratio
fwct	Field production water cut	wwct	Well production water cut

Pressure:

Field		Well
fpav	Field pore volume weighted average pressure	wbhp	Well bottom hole pressure
fhpav	Field hydrocarbon pore volume weighted average pressure

Fluid in place:

Field		Initial
foip	Field oil in place (as surface volume)	foip0	Field initial oil in place (as surface volume)
fgip	Field gas in place (as surface volume)	fgip0	Field initial gas in place (as surface volume)
fwip	Field water in place (as surface volume)	fwip0	Field initial water in place (as surface volume)
fsip	Field solvent in place (as surface volume)	fsip0	Field initial solvent in place (as surface volume)

Energy:

Field		Well
feipo	Initial field energy in place	weir	Well energy injection rate
feip	Field energy in place	weit	Well energy injection total
feir	Field energy injection rate	wepr	Well energy production rate
feit	Field energy injection total	wept	Well energy production total
fepr	Field energy production rate
fept	Field energy production total

Reservoir volumes:

Field		Well
fvpr	Field reservoir volume production rate	wvpr	Well reservoir volume production rate
fvpt	Field reservoir volume production total	wvpt	Well reservoir volume production total
fvip	Field reservoir volume injection rate	wvir	Well reservoir volume injection rate
fvit	Field reservoir volume injection total	wvit	Well reservoir volume injection total

Note that the reservoir volume quantities are currently computed with the well BHPs rather than the field average pressure.

COMP modes specific mnemonics:

Well
wzmfo	Total molar fraction of oil produced/injected (COMP4)
wzmfg	Total molar fraction of gas produced/injected (COMP3 and COMP4)
wzmfs	Total molar fraction of solvent produced/injected (COMP3 and COMP4)
wzmf#	Total molar fraction of component number # produced/injected (COMP EOS)

Note that for COMP3 and COMP4 the injector is limited to one component.

Aquifer Quantities

Aquifer output :

Aquifer
aaqgpr	Aquifer gas production rate
aaqgpt	Aquifer gas production total
aaqwpr	Aquifer water production rate
aaqwpt	Aquifer water production total
aaqopr	Aquifer oil production rate
aaqopt	Aquifer oil production total
aaqspr	Aquifer solvent production rate
aaqspt	Aquifer solvent production total
aaqp0	Aquifer initial pressure
aaqp	Aquifer pressure
aaqz	Aquifer reservoir volume production rate
aaqt	Aquifer reservoir volume total

Aquifer production rates are considered positive for influx from the aquifer to the reservoir.

Region Quantities

Region and Inter-region quantities:

Region
rwip	Region water in place
rgip	Region gas in place
roip	Region oil in place
rsip	Region solvent in place
rwfr	Region water flux rate
rwft	Region water total
rgfr	Region gas flux rate
rgft	Region gas total
rofr	Region oil flux rate
roft	Region oil total
rsfr	Region solvent flux rate
rsft	Region solvent total

For the GAS_WATER mode only, the following additional variables are available:

Region
rgmip	Region gas mass in place
rgmgp	Region gas mass in the gas phase
rgmds	Region gas mass dissolved in aqueous phase
rgmmo	Region gas mass in the mobile gas phase
rgmst	Region gas mass stranded in the gas phase (a.k.a. residual trapping)
rgmus	Region gas mass unstranded in the gas phase

The mnemonic above is used for FIPNUM. If additional FIP arrays are found (see FIPXXX for example), the letters added to FIP for the user-defined name of the array are used to identify the associated quantities, for example: rwfr_xxx, rgfr_xxx, etc.

The same region mnemonic is used for region and inter-region quantities, for the latter the user must select in the post-processor the region pair of interest.