API 5CT Oilwell Float dab tshos

Cov khoom siv ntab ntab muaj xws li Float Collar thiab Float Shoe:

Float Shoe muaj lub backpressure valve uas tiv thaiv cov kua dej nkag mus rau hauv lub casing thaum cov yeeb nkab tau qis rau hauv lub qhov thiab tiv thaiv cov cement tsis ntws rov qab mus rau hauv lub casing tom qab muab tso rau hauv thaum uas ua rau cov dej ntws los ntawm lub casing.

Float Collars muab tso rau ib mus rau peb lub pob qij txha saum Cov Khau Taw Qhia lossis Float Shoe. Lawv muab lub rooj zaum rau cov cement plugs, hauv qab ntsaws twj tso kua mis ua ntej ntawm cov cement thiab sab saum toj ntsaws tom qab tag nrho cov ntim ntawm slurry. Thaum zaum, lub ntsaws sab saum toj kaw cov dej ntws tawm thiab tiv thaiv kom tsis txhob txav ntawm cov cement. Qhov chaw nruab nrab ntawm Float Shoe thiab Float Collar muab qhov chaw ntim khoom kom nkag mus rau cov kua dej uas yuav kis tau los ntawm kev so ntawm cov cementing plug sab saum toj, ua kom cov kua paug paug tawm ntawm cov khau uas muaj zog cement bond yog qhov tseem ceeb. Float Collars muaj xws li lub backpressure valve thiab ua haujlwm zoo ib yam li Float Shoe. Cov cuab yeej no yog qhov tseem ceeb rau kev tswj xyuas qhov zoo ntawm qhov zoo thiab kev ua haujlwm zoo cementing, ua kom lub hauv paus ruaj khov rau kev ua tiav ntawm qhov dej.