1. What is Distance From Observation Well To Real Well?

Distance from Observation Well to Real Well is the hydraulic distance to boundaries from the analysis of aquifer-test data. It represents the actual distance between the observation well and the real pumping well in aquifer analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( rr \) — Distance from Observation Well to Real Well (m)
• \( ri \) — Distance from Observation Well to Image Well (m)
• \( tr \) — Time of Drawdown caused by Real Well (s)
• \( ti \) — Time of Drawdown caused by Image Well (s)

Explanation: This formula calculates the distance to the real well based on the relationship between drawdown times and distances to both real and image wells.

3. Importance of Distance Calculation

Details: Accurate distance calculation is crucial for aquifer characterization, boundary identification, and proper interpretation of pumping test data in hydrogeological studies.

4. Using the Calculator

Tips: Enter all distances in meters and times in seconds. All values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is an image well in aquifer analysis?
A: An image well is a theoretical well used to simulate the effect of aquifer boundaries in pumping test analysis.

Q2: Why is the square root function used in this formula?
A: The square root function accounts for the non-linear relationship between drawdown times and distances in aquifer systems.

Q3: What units should be used for input values?
A: Distances should be in meters (m) and times should be in seconds (s) for consistent results.

Q4: When is this calculation typically used?
A: This calculation is used in pumping test analysis to determine the distance to aquifer boundaries and characterize aquifer properties.

Q5: Are there limitations to this method?
A: This method assumes ideal aquifer conditions and may require adjustments for complex geological settings or multiple boundaries.