TY - SER AU - Elkatatny, Salaheldin AU - Kamal, Muhammad Shahzad AU - Alakbari, Fahd AU - Mahmoud, Mohamed TI - OptimizingRheological Properties of Water-Based Drililng Fluid Using Clays and Nanoparticles for Drililng Horizontal and Multi-Lateral Welis KW - Bentonite KW - Drililng KW - Nanosilica ER -