Spiral grooved directional drill pipe

Product introduction

Spiral groove directional drill pipe is mainly used in coal mine shaft broken coal seam and soft coal seam directional drilling construction, is the necessary supporting drilling tools while drilling measurement, with signal transmission, hole bottom motor required power medium transfer and power transfer of the rig and other functions, is mainly used for kilometer directional drill supporting.

Long borehole directional drilling technology has been widely used because of its advantages of controllable drilling trajectory. However, due to complex geological conditions and the development of structural coal such as soft coal and broken coal, it will cause huge economic losses once serious accidents such as stuck drilling and buried drilling occur. As a supporting tool, directional drill pipe not only needs a structure with large holes to set communication cables, but also requires the drill pipe to have high comprehensive mechanical properties to adapt to the combined forces of tension, pressure, bending and torsion. At present, the directional drill pipe is mainly the central cable type big hole drill pipe. When the outer horizontal directional drill pipe meets the soft protruding coal seam and broken coal seam, it is easy to get stuck and other accidents, which greatly increases the drilling cost.

Technological advantage

Compared with the outer flat type directional drill pipe, the integral spiral groove directional drill pipe has increased the spiral structure, which can effectively prevent the occurrence of stuck drilling, buried drilling and other hole accidents. Meanwhile, the high-strength joint structure of drill pipe improves the torsional, bending and tensile properties of drill pipe. The drill pipe can not only transmit the bottom signal in real time and accurately, but also greatly improve the drilling depth and completion rate of directional drilling while reducing the drilling cost.

Scope of application

It is mainly used for the complex stratum which is easy to collapse hole and cause the accident in hole