Question

The thickness of gravel pack in tubewells varies from

• A. 5 to 8 cm
• B. 8 to 15 cm
• C. 15 to 20 cm
• D. 20 to 25 cm

Hint:

An ideal gravel pack thickness is 3 inches (approx. 7.5 cm) to 6 inches (approx. 15 cm).
This provides a stable, porous filter without restricting the well development process.

Answer 1

The Correct Option is B