Drilling Manual | Well Production Packers In Oil & Gas

https://www.drillingmanual.com/wells-production-packers-oil-gas/ - 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