Free Water Excess Calculator

The Free Water Excess Calculator helps you determine the amount of free water available in a reservoir by subtracting the connate water volume from the total water volume.

Key Concepts

• Total Water Volume: The entire amount of water present in the reservoir.
• Connate Water Volume: The water that is naturally trapped in the reservoir rock, usually non-movable and not recoverable.

Calculation Formula

\[ \text{Free Water Excess} = \text{Total Water Volume} - \text{Connate Water Volume} \]

Example Calculation

If the total water volume is 500 m³ and the connate water volume is 100 m³: \[ \text{Free Water Excess} = 500 - 100 = 400 \text{ m³} \]

Importance

Understanding free water excess is crucial in reservoir engineering and hydrology to assess the amount of recoverable water from a reservoir. It aids in effective water management and extraction planning.

Common FAQs

1. What is free water?

   • Free water refers to the water that is not bound to the rock and can be easily extracted from a reservoir.

2. How is connate water different from free water?

   • Connate water is the water that is trapped in the pores of a rock and is usually not recoverable, while free water can be easily extracted.

3. Why is it important to calculate free water excess?

   • Calculating free water excess helps in determining the amount of usable water in a reservoir, which is essential for planning extraction and water management strategies.