Horizontal directional drill pipe

While window milling sidetracking drilling technology offers numerous advantages for oilfield productionenhancement, it presents several technical challenges in practical application. These primarily include: the smallwellbore size leading to relatively high pump pressure,and the narrow downhole annular clearance. These factorscollectively result in increased annular pressure loss and reduced drilling fluid displacement rates. When usingconventional drill pipes such as 2-3/8" (73mm) and 3-1/2" (88.9mm), the sidetracking length is often limited by thetool 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.