Which component helps support the well and reduce sand entry into the well?

Which component helps support the well and reduce sand entry into the well?

• A. Gravel pack
• B. Casing
• C. Well vent
• D. Well screen

Answer: (A)

Sand control around a pumped well is achieved by placing a gravel pack around the screen. The gravel pack fills the space between the screen and the surrounding formation, acting as a permeable filtration layer that stops sand grains from entering the well while still allowing water to pass. It also provides mechanical support to the screen and helps keep the borehole open, reducing sand-induced erosion and screen wear. The casing simply lines the borehole and doesn’t filter sand, the well vent handles pressure and gas issues rather than sand control, and the screen alone would admit formation sand without the protective filter and support the gravel pack provides.

Sand control around a pumped well is achieved by placing a gravel pack around the screen. The gravel pack fills the space between the screen and the surrounding formation, acting as a permeable filtration layer that stops sand grains from entering the well while still allowing water to pass. It also provides mechanical support to the screen and helps keep the borehole open, reducing sand-induced erosion and screen wear. The casing simply lines the borehole and doesn’t filter sand, the well vent handles pressure and gas issues rather than sand control, and the screen alone would admit formation sand without the protective filter and support the gravel pack provides.