The casing float shoe is used in large-displacement well completion in oil fields. It technically utilizes a sealing device to seal a certain amount of lightweight liquid or gas inside the casing to reduce the weight of the entire casing string in the drilling fluid, thereby effectively reducing the friction between the casing and the wellbore, solving the problem of difficulty in running casing during large-displacement well completion, and featuring a simple and practical structure that can reduce friction and allow the casing to be run smoothly into place. It can be widely used in large-displacement well completion operations in oil field drilling.
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Expanding reamers can overcome wellbore obstacles and guide casing or pipelines to the predetermined depth. Their short profile and optimal cutting structure allow them to mitigate any anticipated or unforeseen difficulties during casing or pipeline running.
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The main function of the casing shoe is to act as a casing guiding device, connected to the lower end of the casing, to ensure that the casing does not pierce the well wall during casing running, allowing the casing to enter the well smoothly.
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