Downhole recovery tools are widely used in oil and gas well repair and recovery operations. Due to the harsh underground conditions of high pressure and high temperature, these tools are prone to wear, deformation, and fatigue. Proper use and maintenance can significantly extend their service life.
Before lowering the tool into the well, operators must inspect its appearance, thread condition, and structural integrity. Any cracks, deformation, or thread damage could result in a failed retrieval or an accident involving the tool falling into the well. During operation, strictly control the running speed to prevent violent collisions inside the wellbore.
After salvage operations, thoroughly clean the tool surfaces to remove crude oil, sediment, and corrosive liquids. Apply rust-preventative oil to the threads and metal surfaces. For long-term storage, place the tools on a dedicated tool rack to prevent deformation from compression.
Regular professional inspections are also necessary. Fatigued components must be replaced periodically to ensure the safety and reliability of repeated downhole operations.
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