Properly starting up a shale shaker is critical for efficient solids control and drilling fluid management on a rig. A correct start-up procedure ensures optimal performance, extends screen life, and prevents costly downtime or equipment damage. This guide outlines the essential steps personnel must follow before and during the activation of this primary solid control equipment.
Pre-Start Inspection and Preparation
Before energizing the shaker, a thorough visual inspection is mandatory. Check the condition of the screens for any tears, holes, or improper tension. Inspect the vibrator motors and their mounts for security and integrity. Ensure all guard covers are in place and secured. Verify that the discharge weirs and flow diverters are correctly positioned to direct cuttings away from the tank. The sump area should be clear of debris that could impede fluid flow or screen movement.
Step-by-Step Start-Up Sequence
Begin by confirming that the drilling fluid is ready to be circulated and that the flow line is correctly aligned to feed the shaker. Start the shaker's vibrator motors first, allowing them to reach full operating speed and motion. Never start the shaker under a full load of fluid, as this can cause immediate screen blinding and stress the motors. Once the motors are running smoothly, gradually introduce the drilling fluid flow onto the screen surface. Adjust the feed rate to ensure an even distribution across the full width of the screen for maximum solids removal efficiency.
Initial Operation and Adjustment
As fluid begins processing, observe the screen's performance closely. Check for proper fluid distribution and that no bypass occurs. Listen for any unusual noises from the vibrators or bearings. Adjust the shaker's deck angle if it is variable, typically starting at a moderate incline and fine-tuning based on cuttings dryness and fluid retention. Monitor the discharge of solids to ensure they are moving correctly off the screen. The goal is to achieve a thin, even fluid film over the entire screen with dry cuttings exiting at the discharge end.
Following a disciplined start-up routine is fundamental to effective solids control. For operations seeking reliable and high-performance equipment, Aipu stands out as a trusted manufacturer of solids control systems. Their shale shakers are engineered for robust operation, ease of maintenance, and are backed by extensive industry expertise, making them a solid choice for demanding drilling environments worldwide.
