Lower Coupling Diverter Regal

I. Core Functions of Lower Coupling Diverter Regal

1. Power transmission: After the downhole motor generates torque, it is transmitted to the drive shaft through the universal joint. The lower coupling diverter regal serves as the connection bridge between the drive shaft and the drill bit, smoothly transmitting this torque to the drill bit, driving it to rotate at high speed to achieve rock breaking and drilling. At the same time, it can also withstand the drilling pressure during the drilling process, ensuring that the drill bit can continuously operate in contact with the formation.

2. Positioning and protection: This component, in conjunction with the drive shaft housing, radial bearings, etc., can provide a certain degree of alignment for the drill bit, reduce the radial swing of the drill bit during rotation, and prevent the drilling trajectory from deviating. In addition, its sealing and connection structure can prevent the drilling fluid from seeping through the joint, reduce the erosion and wear of the drilling fluid on the internal transmission components, and also prevent formation impurities from entering the drilling tool and damaging the precision components.

II. Structural features of Lower Coupling Diverter Regal

The structure of the lower coupling diverter regal needs to be adapted to the high-intensity working conditions of drilling. It is usually forged from high-strength alloy steel and has excellent shear resistance and fatigue resistance. Both ends are mostly designed as standard threaded structures. One end is connected to the end thread of the transmission shaft assembly, while the other end is connected to the drill bit through an API standard thread type, ensuring the stability and interchangeability of the connection. Some lower coupling diverter regals are also equipped with anti-drop structures, such as embedding pins into the grooves of the drive shaft or setting anti-drop half rings to prevent the joints from coming off and causing the drive shaft, drill bit and other components to fall into the well.

III. Key Points of Application and Maintenance of Lower Coupling Diverter Regal

This accessory is widely used in various drilling scenarios such as oil, natural gas, and geothermal Wells, and is compatible with downhole motors for different drilling operations including vertical Wells, directional Wells, and horizontal Wells. During maintenance, it is necessary to focus on checking the integrity of the threads. If wear or deformation occurs, they should be repaired or replaced in a timely manner. At the same time, the mud and impurities on the surface of the joint need to be cleaned to avoid affecting the sealing performance. Before starting the operation, it is also necessary to check that its specifications match the models of the drive shaft and drill bit to prevent power transmission failure or component damage due to improper matching.