Cellar Plugged with Mud During 26inch Casing Drilling 1. Causes: Excessive spillage of drilling mud from the wellbore during large-diameter drilling. Insufficient drainage or poor cellar design, leading to accumulation of cuttings and mud. High pump rates and mud volume during spudding or top-hole drilling, especially in unconsolidated formations. Lack of proper flow control or redirection around the wellhead. 2. Consequences: Restricted access to wellhead equipment. Difficulties in running and

Understanding the Consequences of Downhole Pressure A real-time example from the rig floor In this video, we see a situation that underscores the importance of pressure management and situational awareness during drilling operations—particularly when tripping pipe. From the very start of the video, it’s clear that something is not normal. The drill string appears to be pushed upwards, with the elevators latched, and long bails under tension. There’s a visible and unnatural bending of the pipe ju

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