Desanding agents are mainly used in mud purification and solids control systems to assist in solid-liquid separation and particle removal. Insufficient pressure during operation will directly affect desanding efficiency and may even lead to system instability. Insufficient pressure is usually related to decreased pump performance, pipeline problems, filter blockage, or unreasonable operating parameter settings. It is necessary to troubleshoot and adjust step by step based on the on-site conditions.
Abnormal Pump Operation Leading to Pressure Drop
The pressure of the desanding agent system mainly relies on the pump body. If the pump body is worn or malfunctions, it will directly affect the output pressure. After long-term operation, impeller wear, seal aging, or decreased motor efficiency can all cause insufficient pressure. During operation, if the pressure remains consistently low, equipment vibration is abnormal, or noise increases, the pump body condition needs to be checked carefully. If necessary, repairs or replacement of key components should be carried out to restore normal output capacity.
Pipeline Blockage or Leakage Affecting System Pressure
Blockage or leakage in the delivery pipeline will also lead to a drop in pressure. Accumulation of sand or sediment inside the pipeline increases flow resistance, causing gradual pressure loss during transmission. Simultaneously, poor joint sealing or micro-cracks in the pipeline can also lead to pressure leakage, making it difficult for the system to reach its set value.
- Sedimentation inside the pipeline hinders flow.
- Poor joint sealing causes pressure leakage.
- Local blockage increases system operating resistance.
- Long-distance transport leads to significant pressure loss.
- Pipeline aging affects overall sealing performance.
By inspecting the pipeline section by section, pressure loss points can be quickly located.
Clogged Filters Reduce Circulation Efficiency
Sand removal cleaning agent systems are typically equipped with filters to separate solid particles. If the filter is not cleaned for a long time, it is prone to clogging, increasing system resistance and causing a pressure drop. After the filter screen becomes clogged, liquid flow is restricted, circulation efficiency decreases, and the system pressure is difficult to maintain a stable state. In this case, the filter needs to be cleaned regularly to prevent solid particle accumulation and ensure smooth system operation.
Inappropriate System Parameter Settings Affect Output
Insufficient pressure may also be related to operating parameter settings. For example, excessively low pump speed, unreasonable valve opening, or uneven flow distribution can all affect system pressure performance. If multiple devices operate simultaneously, uneven load distribution may also occur, leading to insufficient pressure in some components. During adjustment, parameters need to be gradually optimized according to actual operating conditions to maintain a balance between flow and pressure, thereby improving overall operational stability.
Liquid Concentration and Operating Condition Changes Affect Pressure Performance
Changes in the concentration of the desanding agent and the properties of the mud also affect system pressure. If the solid content in the liquid is too high, it will increase flow resistance, making it difficult for the system pressure to rise; if the concentration is too low, it may affect the pump’s working efficiency. The properties of the mud will change at different construction stages, therefore, the agent ratio needs to be adjusted in a timely manner according to the site conditions to ensure the system maintains stable operation under different operating conditions.
