Drill pipe for drilling for performing horizontal wells.

摘要

The drill pipe (1) is designed for a drilling device for executing horizontal bores, and comprises a relatively light tube body (3) made of a fiber-composite-plastic. The tubular body (3) has a relatively large bending elasticity in spite of high torsional stiffness. Several drill pipes (1) can be assembled to a drill string means formed at the ends of the coupling elements (5b 5a). The aerodynamic design of the coupling elements (5a, 5b) and the relatively large inner diameter of the tubular body (3) allow even when drilling pipes (1) with small external diameters the passage of compressed air without large pressure drop.