AQUFLUX

Variant 1 — SOLUTION section

The AQUFLUX keyword defines the properties of Constant Flux Analytical Aquifers, that allows for a constant water influx to the connected grid blocks. This type of aquifer is connected to the model using either the AQUANCON keyword for global cells, or the AQUANCONL keyword for cells belonging to a Local Grid Refinement ("LGR"), both the aforementioned keywords are in the GRID and SOLUTION sections. The keyword itself may be utilized in both the SOLUTION and SCHEDULE sections, with subsequent entries overwriting the previous entry.

Notes:

The keyword is followed by up to NANAQ records as defined on the AQUDIMS keyword in the RUNSPEC section

Each record is terminated by a “/” and the keyword should be terminated by a “/”. Note the commercial simulator only requires a terminating “/” if the number of records on this keyword are less than NANAQ on the AQUDIMS keyword in the RUNSPEC section. If the number of records are equal to NANAQ and a terminating “/” has been entered then the commercial simulator will issue a warning message; however, the commercial simulator run will proceed as expected.

The water flow rate into a connected grid cell for this type of aquifer, is calculated from:

[q_w`=`AQUFLUX(AQFLUX) ` times ` A_( i, j, k) ` times ` AQUANCON(AQUCOEF)]

(10.14)

Where:

AQUFLUX(AQFLUX)= the AQFLUX parameter on the AQUFLUX keyword,

AQUANCON(AQUCOEF)= the AQUCOEF parameter on the AQUANCON keyword

Note that [A_( i, j, k )]is calculated from the connected cell geometry, and thus the is calculated from the connected cell geometry, and thus the AQUANCON(AQUFLUX) and the AQUANCONL(AQUFLUX) parameters are ignored for this type of aquifer.

The AQUFLUX keyword should only be used in runs that have been initialized by equilibration or with enumerated values, and should not be used in RESTART runs.

See also the BCCON keyword in the GRID section and the BCPROP keyword in the SCHEDULE section that can be used to specify boundary conditions.

Records

One or more records, each terminated by /

Items per record

5

Parameters

Example

Given a total of five analytical aquifers as declared by the NANAQ parameter on the AQUDIMS keyword being set to five, of which three are Constant Flux Aquifers and two Carter-Tracy Aquifers, then:
--
-- CONSTANT FLUX AQUIFER DESCRIPTION
--
-- ID WATER SALT AQF AQU
-- NUM INFLUX CONC TEMP PRES
--
AQUFLUX
1 0.0004 1* 1* 1* /
2 0.0005 1* 1* 1* /
3 0.0003 1* 1* 1* /
/
--
-- CARTER-TRACY AQUIFER DESCRIPTION
--
-- ID DATUM AQF AQF AQF AQF AQF AQF INFL PVT AQU
-- NUM DEPTH PRESS PERM PORO RCOMP RE DZ ANGLE NUM TAB
--
AQUCT
4 2000.0 269 100.0 0.30 3.0e-5 330 10.0 360.0 1 2 /
5 2000.0 269 100.0 0.30 3.0e-5 330 10.0 360.0 1 2 /
/
Defines three Constant Flux Aquifers and three Carter-Tracy Aquifers, and the connection of the aquifers are set in the GRID or SOLUTION sections via:
--
-- ANALYTIC AQUIFER CONNECTION
--
-- ID ---------- BOX --------- CONNECT AQF AQF ADJOIN
-- NUMBER I1 I2 J1 J2 K1 K2 FACE INFLX MULTI CELLS
AQUANCON
1 1 198 1 14 1 10 J- 1* 1.0 'NO' /
2 1 198 1 14 12 22 J- 1* 1.0 'NO' /
3 1 198 1 14 23 54 J- 1* 1.0 'NO' /
4 1 198 1 14 61 70 J- 1* 1.0 'NO' /
5 1 198 15 172 71 71 K+ 1* 1.0 'NO' /
/
| [q_w`=`AQUFLUX(AQFLUX) ` times ` A_( i, j, k) ` times ` AQUANCON(AQUCOEF)] | (10.14) |
|----------------------------------------------------------------------------|---------|

Manual source: parts/chapters/subsections/10.3/AQUFLUX.fodt

Variant 2 — SCHEDULE section

The AQUFLUX keyword defines the properties of Constant Flux Analytical Aquifers, that allows for a constant water influx to the connected grid blocks

See AQUFLUX - Define Constant Flux Analytical Aquiferin the SOLUTION section for a full description.

Records

One or more records, each terminated by /

Items per record

5

Manual source: parts/chapters/subsections/12.3/AQUFLUX.fodt