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Well Production Packers

A packer is a tool used in oil and gas production well, which when set, seals the annular space between 2 strings of pipe or a string of pipe and the open hole. They also must have the capability of permitting production flow through them and onto the surface. As its major functions, a packer should : 1- Protect casing from bursting under conditions of high production or injection pressures 2- Protect casing from corrosive fluids 3- Provide better well control 4- Prevent fluid movement between productive zones