Ukubhoboza kuyinqubo yokudala izimbobo ku-casing (noma kulayini) ukuze kuxhunywe ichibi nendawo ebhobozayo futhi kuvumele ama-hydrocarbon ukuthi agelezele emthonjeni. Izibhamu ezibhobozayo ezinamacala zisetshenziselwa ukubhoboza izimbobo emgodini womthombo. Endaweni evulekile, izibhamu zehliswa emthonjeni kusetshenziswa i-electric-line (E-line) noma ishubhu. Izibhamu zigijimelwa ekujuleni okufunayo, emva kwalokho umsebenzi wokubhoboza uqala. Inqwaba yezinhlelo zezibhamu ezihlukene ziyatholakala ukuze zikhethwe, kuye ngezimfuneko ezingaphansi komhlaba kanye nezimbobo.
Kunezindlela ezi-3 zokuhambisa ezinkulu zokwehlisa izibhamu ezibhobozayo emthonjeni, njengoba ngezansi:
I-1) I-Chreat-Casing Perforating isetshenziswa ngaphambi kokuqedwa komthombo ukuze kufakwe izibhamu ezinkulu. Ubukhulu bezibhamu ngokuvamile buphakathi kuka-3” no-5” ububanzi futhi buqhutshwa kusetshenziswa intambo yocingo. Le ndlela yokubhoboza isetshenziselwa ukunikeza ukungena okukhulu ngenxa yobukhulu obukhulu bezibhamu. Futhi, lokho okubizwa ngokuthi "ogandaganda" kungase kusetshenziswe ukuvumela izibhamu ukuba zifakwe emithonjeni echezukile. Omunye wemikhawulo emikhulu yokusebenzisa le ndlela ukuthambekela okuhle kanye nezidingo zengcindezi, isb lapho kudingeka ukulinganisela okuncane.
2) I-Tubing Conveyed Perforating (TCP) isebenzisa izibhamu ezixhunywe kushubhu (ipayipi lokubhoboza, ishubhu elihlanganisiwe noma ishubhu lokukhiqiza). Izinzuzo ezinkulu zale ndlela ukuthi ivumela ukushiya amashubhu okukhiqiza emthonjeni, ngemva kokuba ukubhoboza sekuqediwe (kugijima kanye nentambo yokuqedela), izikhawu ezinde nezinezikhala ezibanzi, nokusetshenziswa emithonjeni echezuke kakhulu nevundlile. Umphumela omkhulu wezibhamu ze-TCP kuze kube yilapho ukuqedwa kubuyisiwe (umsebenzi ogcwele) izibhamu azikwazi ukutholwa. Ngakho-ke, ukwethembeka kwezibhamu ze-TCP kubaluleke kakhulu, njengoba noma yikuphi ukudubula okungalungile kuzoholela ekusebenzeni kabi kwe-perforating futhi kuthinte kakhulu amaphrofayili wokukhiqiza wesikhathi esizayo.
3) Izibhamu Zokubhoboza Emigodini ziyizibhamu, ezincane ngosayizi, zisetshenziswa emithonjeni eqediwe futhi zisebenza ngamashubhu okukhiqiza. Uhlelo luyizindleko eziphansi futhi luvumela ukubhobozwa okulinganiselwe, nokho inikeza ukungena okulinganiselwe.
Amasistimu ezibhamu awela ezigabeni ezimbili ezihlukene:
1) Izibhamu eziveziwe (Capsule) kanye
2) Izibhamu zenethiwekhi ezingenalutho. Zonke izibhamu zicushwa ngogesi phezulu futhi ziza ngobukhulu obuhlukahlukene ukuze zihambisane nezidingo zokubhobozwa kahle.
Ulwazi olungaphezulu luvela ku-http://www.scmdaleel.com/category/e-logging-amp-perforation/19
Noma yiziphi izintshisekelo zokubhoboza isibhamu kanye nezinsiza sicela uthinte i-Vigor info@vigordrilling.com
Isikhathi sokuthumela: Mar-20-2023
