Factors of mud pump bearing burnout in oil drilling and preventive extension measures

Drilling mud pump bearings is to ensure the normal operation of the mud pump is an important component, is to ensure that the mud pump power output of one of the main accessories, parts, although small, the role of a large, so the study of the mud pump bearings is also to ensure that the mud pump reasonable use of one of the topics.

The mud pump is an important part of drilling operations, the main function is to carry cuttings of high-pressure mud into the well. When drilling, the high-pressure mud should be stable and continuously pumped to avoid the problem of well collapse and abandonment of the construction site caused by high-pressure mud interruption. Therefore, it is not difficult to see the importance of mastering the operating state of the mud pump. The fault time domain signal is expanded through resonance demodulation technology, and the frequency domain research is carried out. Combined with the fault characteristics of bearing components, the fault analysis is carried out according to the characteristic parameters of mud pump bearing fault conditions.

Reasons for bearing burnout: The analysis of the drilling team's usage shows that the main reasons for bearing burnout are: 1. Poor oil circuit. 2. Insufficient oil level. 3. Quality defects in the bearing itself.

Methods to Extend the Service Life of Bearings

1. Regular Cleaning and Maintenance: 
Given that the operating environment for mud pumps is harsh, poor sealing within the pump can allow mud to enter. Regular oil circuit cleaning and flushing are essential to ensure unobstructed flow. The simplest method is to use air blowing to check the oil circuit's smoothness. Ensuring the oil circuit is sealed and airtight is crucial. Commonly used CB50 gear oil pumps are simple and convenient, but they require high sealing standards to prevent air leakage. Air leaks can lead to oil pump burnout and inadequate lubrication of lubrication points.
2. Frequent Inspections: 
Ensure that the oil level is within the upper and lower marks on the dipstick, neither too much nor too little. Excessive oil can cause the bearing to overheat, while too little oil results in poor lubrication. Additionally, ensure the bearing housing is intact to provide sufficient lubrication for the bearings.
3. Smooth Engagement: 
When engaging the vehicle, do so smoothly and avoid sudden impacts. Excessive shocks can significantly damage various components of the pump.
4. Ensure Oil Cleanliness: 
SIRKEN recommends using a combination of splash lubrication and forced lubrication for mechanical mud pumps. This method generally prevents bearing burnout and other issues.
5. Addressing Bearing Defects: 
Currently, there are no effective measures to address inherent bearing defects. While visual inspections and measurement tools can detect surface defects, issues related to bearing material, such as alloy composition, hardness, and wear resistance, are challenging to resolve. These material properties significantly impact the bearing's service life. SIRKEN's partner, Rongli Petroleum Machinery, enhances the fatigue limit of bearings by sourcing from reputable manufacturers.

In conclusion, extending the service life of mud pump bearings requires diligent efforts from the rig team. Regular cleaning, frequent inspections, and ensuring the cleanliness of lubricating oil are critical to prolonging the lifespan of mud pump bearings.