Horizontal directional drill pipe

While window milling sidetracking drilling technology offers numerous advantages for oilfield production enhancement, it presents several technical challenges in practical application. These primarily include: the small wellbore size leading to relatively high pump pressure,and the narrow downhole annular clearance. These factors collectively result in increased annular pressure loss and reduced drilling fluid displacement rates. When using conventional drill pipes such as 2-3/8" (73mm) and 3-1/2" (88.9mm), the sidetracking length is often limited by the tool joint's outer diameter, inner diameter, and thread profile. Our company has developed specialized horizontaldirectional drill pipes for window milling sidetracking, which effectively address the aforementioned challenges.