A float shoe is a floating equipment, that comes in handy throughout the process of drilling gas and oil wells. It is a single cylindrical section, performing and functioning of both a float collar and a guide shoe. The key purpose of a float shoe is to guide drilling apparatus to the well’s bottom without tearing, similar to a guide shoe. It also has a check valve to let the passage of fluids in only a single direction, just as a float collar.

With the operators drilling a well, they mark the hole with casing. This is a steel pipe having the similar diameter, that of the hole. It averts the caving in of the walls of the hole throughout the entire drilling process. It also stops fluid from flowing into the hole. When petroleum is discovered at the site, the casing is used as a channel to pump petroleum from the borewell.

With every section of casing, is only 30 feet in length, a few of them are required for reaching to the bottom of a majority of the wells. A few casings joined together is known by the name of a casing string. 

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With the upward movement of the liquid to the float shoe, it powers the ball upward, till the time it hits the thinner neck at the tube’s top. The liquid pressure against the ball covers it to the tube, stopping the entry of the liquid in the rest of the casing string. If cement or water is pumped down the float shoe, the dropping of the ball is far from the neck, permitting the flow of the liquid.

Due to the increasing population, all over the world and also the industrialization, there is a growing requirement for oil and gas. For the pumping out of the oil and gas, there is a need for centralizers and float equipment, just as the float shoe, which is discussed in detail in this blog.