Hinged Bow-Spring Centralizer, Nws yog ib qho cuab yeej tshwj xeeb uas siv los pab lub qhov chaw hauv lub qhov dej thaum lub sij hawm cementing txheej txheem.

Covhinged bow-caij nplooj ntoos hlav centralizeryog tsim los nrog kev sib txuas hinged, ua rau nws yooj yim rau nruab thiab ua kom muaj kev ruaj ntseg haum nyob ib ncig ntawm lub casing. Hom centralizer no kuj muab cov txiaj ntsig ntawm kev txo nqi tsheb thauj mus los, vim nws tuaj yeem yooj yim folded thiab stacked rau kev xa khoom zoo thiab khaws cia.

Thaum lub sijhawm ua haujlwm cementing, lub hom phiaj tseem ceeb ntawm kev siv cov khoom siv hauv nruab nrab yog los xyuas kom meej tias lub casing yog qhov zoo nyob rau hauv qhov dej. Qhov no yog qhov tseem ceeb heev rau txoj haujlwm cement zoo, vim nws tso cai rau kev faib cov cement nyob ib ncig ntawm lub casing, uas thaum kawg tsim ib qho chaw zoo thiab txhim khu kev qha. Covhinged bow-caij nplooj ntoos hlav centralizerplays lub luag haujlwm tseem ceeb hauv kev ua tiav qhov no, vim tias nws cov qauv tsim pab txhim kho cov dej ntws ntawm cov cement nyob ib ncig ntawm lub casing, txo qhov kev pheej hmoo ntawm cov cement tsis zoo thiab cov chaw tsis muaj zog hauv qhov dej.