The processing flow of the drilling fluid solid control system is a multi-level collaborative and dynamically optimized closed-loop process, with the core goal of achieving clean and circular utilization of drilling fluid through physical separation and performance regulation. The typical processing flow can be decomposed into the following five technical steps:
- 1. Primary solid-phase separation (from wellhead to vibrating screen)
- Rock cuttings reception: After the drilling fluid containing rock cuttings returns from the bottom of the well, it is transported to the vibrating screen through a high-pressure pipeline (pressure 10-35MPa) with a flow rate of usually 50-200m³ /h。
- Mechanical screening: The vibrating screen uses dual mass resonance technology (frequency 50-150Hz) to drive multiple layers of screen mesh (40-325 mesh) to achieve solid-liquid separation, which can remove particles larger than 75 μ m and has a processing efficiency of>90%.
