Downhole Equipent Casing Shoe Float Collar Guide Shoe
Nqe lus piav qhia:
Guide Khau yog ib qho yooj yim thiab pheej yig txheej txheem los khiav casing nyob rau hauv lub qhov dej. Cov no yog txuas rau hauv qab casing thiab muab buoyancy rau cov hlua casing thaum nws qis dua.
Qhov kev tsim no muaj lub puab taper nyob rau hauv qab kom paub meej tias tsis muaj hassle-dawb nkag ntawm cov cuab yeej drilling rov qab mus rau hauv txoj hlua casing tom qab lub laum tawm thiab thaum lub sij hawm drilling. Lub qhov ntswg puag ncig coj lub casing kom deb ntawm ledges thiab obstructs nyob rau hauv lub wellbores li casing yog txo.
Ib qho kev kos valve ua rau muaj kev cuam tshuam rau txoj hlua casing thiab tseem tiv thaiv cov cement los ntawm rov nkag mus rau hauv lub casing tom qab nws raug tshem tawm. Tag nrho cov khoom siv sab hauv yog tag nrho PDC drillable.
Cov Khau Taw Qhia yog cov cuab yeej tseem ceeb rau kev tsim kho kom zoo, tsim los txhim kho cov txheej txheem kev teeb tsa casing. Nws tsim kom muaj kev tiv thaiv tsawg thiab hassle thaum ua haujlwm. Lub built-in check valve tsis tsuas yog pab tswj lub buoyancy ntawm cov hlua casing tab sis kuj ua kom lub siab ncaj ncees ntawm cov cement txoj hauj lwm los ntawm kev tiv thaiv cov cement rov qab. Tsis tas li ntawd, nws txoj kev sib raug zoo nrog PDC drilling ua rau nws haum rau kev ua haujlwm niaj hnub drilling. Nws muaj nyob rau hauv ntau qhov ntau thiab tsawg, thiab kev xaiv rau qhov tshwj xeeb ntau thiab tsawg ntawm kev thov, ua rau nws muaj ntau yam cuab yeej hloov tau rau ntau qhov ntau thiab tsawg thiab cov hlua casing.
