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 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

fspr

Field solvent production rate

wspr

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

fsir

Field solvent injection rate

wsir

Well solvent injection rate

fsmir

Field solvent mass injection rate

wsmir

Well solvent mass injection rate

fsit

Field solvent injection total

wsit

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)

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

wvip

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.

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.