Saeedeh Komasi

To define dispersion for salt in a low salinity water flooding code in Eclipse, you can follow these steps:

1. **Define the tracer component**: In the Eclipse input file, you need to define a tracer component to represent the salt. This can be done using the `COMPONENTS` keyword, for example:

```

COMPONENTS

WATER SALT /

```

2. **Set the dispersion parameters**: The dispersion of the salt (tracer) component can be defined using the `TRACER` keyword in the Eclipse input file. You can specify the longitudinal and transverse dispersivities for the salt component:

```

TRACER

DISPERSION

LONG 0.1

TRAN 0.01 /

/

```

In this example, the longitudinal dispersivity is set to 0.1 and the transverse dispersivity is set to 0.01.

To activate the interactions between the tracer (salt) and the polymer in Eclipse, you can use the following steps:

1. **Define the polymer component**: In the Eclipse input file, define the polymer component using the `COMPONENTS` keyword:

```

COMPONENTS

WATER OIL POLYMER SALT /

```

2. **Specify the tracer-polymer interactions**: Use the `TRACERKR` keyword to define the interactions between the tracer (salt) and the polymer. You can specify the adsorption and desorption rates, as well as the partition coefficient:

```

TRACERKR

SALT POLYMER

ADSORPTION 1.0

DESORPTION 0.1

PARTITION 0.5 /

/

```

In this example, the adsorption rate is set to 1.0, the desorption rate is set to 0.1, and the partition coefficient is set to 0.5.

Make sure to include any other necessary keywords and parameters, such as `ROCK`, `SOLUTION`, `POLYMER`, and `SCHEDULE`, to complete the Eclipse input file for your low salinity water flooding simulation with tracer and polymer interactions.

good luck; partial credit ai