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Preventing drill bit and casing damage from the drill out of conventional shoetracks.

The subsea well cementing status quo currently involves the use of the poor boy inner string method and SSR plug method. The standard poor boy inner string cement job involves running an inner string to within a pre-designed distance of the float shoe and making this up to the running tool. The cement job is then pumped and displaced, leaving a designed shoetrack length to try and guarantee quality cement…

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