Guidelines for Winter Construction Antifreezing of Rotary Drilling Rigs: Building A Strong Safety Line for Low Temperature Operations

    The sudden drop in seasonal temperature and low temperature environment can easily cause damage to key parts such as the start-up of rotary drilling rigs, hydraulic systems, and pipelines, leading to equipment failures and affecting construction progress and operational safety. In response to the pain points of winter construction for rotary drilling rigs, it is necessary to focus on three core measures: low-temperature start-up guarantee, hydraulic oil protection, and pipeline antifreeze. Standardize equipment operation and daily maintenance to ensure stable and efficient operation of equipment in low-temperature environments, and reduce construction safety hazards and equipment losses.

    Strengthen low-temperature start-up protection and avoid start-up failures. In low temperature environments, the capacity of the drilling rig battery decreases and the viscosity of the engine oil increases, which can easily lead to problems such as difficulty starting and weak starting. Before construction, it is necessary to conduct a comprehensive inspection of the battery, clean the oxide layer on the terminal posts, ensure that the wiring is firm, replace the low-temperature compatible battery if necessary, and regularly charge the battery to avoid power loss; Replace the engine oil and fuel that are suitable for low-temperature environments, and choose diesel with a pour point 5-10 ℃ lower than the local minimum temperature to prevent fuel wax from clogging the oil circuit. When starting, preheat the drilling rig for 10-15 minutes. Wait for the oil and hydraulic oil to circulate fully and the temperature to rise to the normal range before starting the operation. It is strictly prohibited to run the cooling machine directly at high speed to reduce engine and transmission system wear.

    Take good care of hydraulic oil protection to ensure the stability of the hydraulic system. The hydraulic system is the core component of a rotary drilling rig, and low temperatures can easily cause an increase in hydraulic oil viscosity and a decrease in fluidity, reducing the efficiency of the hydraulic system and even causing pipeline blockages and seal damage. During winter construction, it is necessary to replace the low-temperature anti-wear hydraulic oil to ensure that the hydraulic oil can maintain good fluidity and lubricity at low temperatures; Regularly check the hydraulic oil level and quality, promptly replenish or replace deteriorated hydraulic oil, and avoid impurities from entering and affecting system operation; Pay close attention to the temperature of the hydraulic system during the homework process. If the temperature is too low, the system temperature can be increased by running it without load. It is strictly prohibited to carry out heavy load operations when the hydraulic oil has not reached the normal working temperature.

    Strengthen pipeline antifreeze measures to prevent pipeline damage and leakage. The pipelines of rotary drilling rigs are densely packed, and the brittleness of the pipes increases in low-temperature environments. If there is residual water or poor hydraulic oil flow in the pipelines, it is easy to cause problems such as pipeline freezing and interface leakage. After completing daily homework, it is necessary to thoroughly drain any residual water in the pipeline, with a focus on inspecting parts such as water pumps, radiators, and hydraulic pipelines to ensure that there is no residual water; Insulate the exposed pipelines and joints, wrap them with insulation cotton or cold resistant sheaths to reduce heat loss and avoid pipeline freezing and cracking; Before starting work, carefully inspect the pipelines for any damage and loose connections. If any problems are found, repair and replace them promptly to prevent further damage at low temperatures.

    In summary, the core of anti freezing for winter construction of rotary drilling rigs lies in "anti condensation, anti freezing, and anti wear". By standardizing low-temperature start-up operations, selecting oil products suitable for low temperatures, and strengthening pipeline insulation and water discharge, the damage to equipment caused by low-temperature environments can be effectively reduced, ensuring smooth construction progress. At the same time, it is necessary to strengthen equipment inspection and maintenance on a daily basis, establish a sound anti freezing management system, ensure that every anti freezing measure is implemented in place, and balance construction efficiency and equipment safety.