Why Desander Cone Plugging Keeps Coming Back?
A crew clears a blocked apex, restarts the feed pump, and twenty minutes later the same cone is packed again. The conclusion is usually that the cones are worn out, the wrong size, or that the whole bank needs replacing. But those are not the only causes. Desander cone plugging is often the final symptom of a problem that started somewhere else: a torn shaker panel, a feed line with too much head loss, or a suction compartment running low enough to pull air. Crews describe the same failure in different ways. The apex plugs, the cone ropes, the manifold pressure reads low, or the desander runs all day without moving the sand content. Each one points at a different fix. Telling them apart takes about thirty seconds at the cone, and nothing on the rig is cheaper than that. Read the discharge pattern before you read the gauge A cone doing its job throws a hollow, umbrella-shaped spray with a visible air core down the middle. Published procedures for some 10-inch desander cones put t...