Selection and Optimization of Drilling Equipment for CBM Horizontal Well

In order to meet the construction requirements of CBM horizontal well and reduce the drilling cost, it is necessary to investigate and summarize the conventional water-source drilling rig, oil drilling rig and truck-mounted drilling rig. Combined with the characteristics of geological conditions, operating environment and construction technology of CBM horizontal well, the fully hydraulic truck-mounted drilling rig is selected, which was suitable for CBM horizontal well. The characteristics of conventional mud pump group are analyzed, the 150 kW energy-saving generator is connected in parallel at the output of diesel engine, and the mud pump group is optimized. Based on the conventional oil solid control system, a four-stage solid control system for CBM horizontal well is designed. Thus, a set of drilling equipment for CBM horizontal well is formed.