Umsebenzi we-sleeve stabilizer

Ukusetshenziswa kwezinzinzisi zemikhono kuyisinyathelo esibalulekile sokuthuthukisa ikhwalithi yokufaka usimende. Inhloso yokufaka usimende ikabili: okokuqala, ukusebenzisa i-casing ukuvala izigaba zemithombo yamanzi ezijwayele ukuwa, ukuvuza, noma ezinye izimo eziyinkimbinkimbi, okunikeza isiqinisekiso sokubhola okuphephile nokushelelayo. Okwesibili ukuhlukanisa ngokuphumelelayo amathanga ahlukene kawoyela negesi, ukuvimbela uwoyela negesi ukuthi ungagelezi phezulu noma ukuvuza phakathi kokwakheka, okuhlinzeka ngemigudu yokukhiqiza uwoyela negesi.

Ngokwenhloso yokufaka usimende, amazinga okuhlola izinga likasimende angatholakala. Okubizwa ngokuthi ikhwalithi enhle yokufaka usimende ngokuyinhloko ibhekisela egodini eligxile emgodini womthombo, futhi umgodla usimende ozungeze ikesi ohlukanisa ngokuphumelelayo ikesi kusuka odongeni lomthombo kanye nokwakheka kusukela ekubunjweni. Kodwa-ke, umthombo wangempela ombiwe awumi ngokuphelele futhi ungase ubangele amazinga ahlukene okuthambekela komthombo. Ngenxa yokuba khona kokuthambekela komthombo, i-casing ngeke ngokwemvelo ibe phakathi komthombo, okuholela ezinhlobonhlobo zobude namazinga okuxhumana nodonga lomthombo. Igebe phakathi kwe-casing kanye ne-wellbore liyahlukahluka ngobukhulu, futhi lapho udaka lukasimende ludlula ezindaweni ezinezikhala ezinkulu, i-slurry yasekuqaleni ishintshwa kalula; Ngokuphambene nalokho, kulabo abanezikhala ezincane, ngenxa yokumelana nokugeleza okuphezulu, kunzima ukuthi udaka lukasimende luthathe indawo yodaka lwangempela, okuholela esenzweni esivame ukubizwa ngokuthi udaka lukasimende. Ngemuva kokubunjwa komzila, indawo yokugcina amafutha negesi ayikwazi ukuvalwa ngokuphumelelayo, futhi uwoyela negesi kuzogeleza ezindaweni ezingenazo izindandatho zikasimende.

Ukusebenzisa i-sleeve stabilizer ukumisa i-casing ngangokunokwenzeka ngesikhathi sikasimende. Ukuze kuqiniswe usimende emithonjeni eqonde ngqo noma echezuke kakhulu, kudingekile nakakhulu ukusebenzisa iziqinisi zemikhono. Ukusetshenziswa kwe-casing centralizers akukwazi nje ukuvimbela ngempumelelo usimende ukuthi ungangeni emgodini, kodwa futhi kunciphise ingozi yokuhluka kwengcindezi ye-casing nokunamathela. Ngenxa yokuthi i-stabilizer igxilisa i-casing, i-casing ngeke inamathele ngokuqinile odongeni lomthombo. Ngisho nasezigabeni zomthombo ezinokungena kahle, i-casing cishe ayinakubanjwa amaqebelengwane odaka akhiwe ukuhluka kwengcindezi futhi abangele ukubhoboza imigodi. I-sleeve stabilizer nayo inganciphisa izinga lokugoba le-casing ngaphakathi komthombo (ikakhulukazi engxenyeni enkulu ye-wellbore), okuzonciphisa ukuguga kwethuluzi lokubhoboza noma amanye amathuluzi e-downhole ku-casing ngesikhathi senqubo yokubhoboza ngemva kokufakwa kwe-casing, futhi ubambe iqhaza ekuvikeleni i-casing. Ngenxa yokusekelwa kwe-sleeve stabilizer ku-casing, indawo yokuxhumana phakathi kwe-casing kanye ne-wellbore iyancishiswa, okunciphisa ukungqubuzana phakathi kwe-casing kanye nomthombo. Lokhu kunenzuzo ukuthi i-casing yehliselwe emthonjeni futhi i-casing ihanjiswe ngesikhathi sikasimende.