<p>The Hassi Messaoud region in southern Algeria faces significant sand accumulation from oil drilling, creating environmental pollution that poses risks to humans and nature. Additionally, oil companies struggle with sand scarcity for construction. This study examines the mechanical and physical properties of concrete made from oil well sand—focusing on density, compressive and flexural strength, shrinkage, ultrasonic wave speed, and water absorption—to evaluate its potential as an alternative to conventional materials. Results show that concrete with oil well sand has a fresh density of 2208.6 kg/m³, hardened density of 2144.07 kg/m³, and flexural strength of 3.26 MPa, meeting about 80% of European standards. Compressive strength reached 39.70 MPa, aligning with these standards. Additionally, shrinkage was low (1086 μm/m), ultrasonic speed reached 3820 m/s, and water absorption was 1.59%. These findings suggest that oil well sand concrete could be a viable material for desert construction, potentially mitigating environmental impact in the Hassi Messaoud area.</p>