I-casing yipayipi lensimbi elisekela izindonga zemithombo kawoyela negesi. Umthombo ngamunye usebenzisa izendlalelo eziningana ze-casing kuye ngokujula kokubhoboza kanye ne-geology. I-casing ngemuva komthombo ukusebenzisa usimende kusimende, i-casing kanye ne-tubing, ipayipi lokubhoboza lihlukile, alikwazi ukusetshenziswa kabusha, lingokusetshenziswa kwezinto kanye kuphela. Ngakho-ke, ukusetshenziswa kwe-casing kubalwa ngaphezu kwama-70% awo wonke amapayipi emithombo kawoyela. I-casing ingahlukaniswa ibe yipayipi, i-surface casing, i-technical casing kanye ne-oil layer casing ngokuya ngokusetshenziswa, futhi isakhiwo sazo emthonjeni kawoyela siboniswe esithombeni.
Ipayipi: lisetshenziswa kakhulu ekubholeni olwandle nogwadule, ukuhlukanisa amanzi olwandle nesihlabathi, ukuqinisekisa ukubhoboza okubushelelezi, imininingwane eyinhloko yalolu ngqimba lwebhokisi yile: ∮762mm(30in) ×25.4mm, ∮762mm(30in) ×19.06mm.
Ibhokisi elingaphezulu: elisetshenziswa kakhulu ekubholeni kokuqala, ukubhoboza umhlabathi othambile uye edwaleni elingaphansi, ukuze kuboshwe le ngxenye yomhlabathi ngaphandle kokuwa, kudingeka kusetshenziswe ibhokisi elingaphezulu ukuze kuvalwe. Imininingwane eyinhloko yebhokisi elingaphezulu: 508mm(20in), 406.4mm(16in), 339.73mm(13-3/8in), 273.05mm(10-3/4in), 244.48mm(9-5/8in), njll. Ukujula kwepayipi kuncike ekujuleni kokwakheka okuthambile, okuvame ukuba ngu-80~1500m. Ingcindezi yayo yangaphandle kanye nengcindezi yangaphakathi akukukhulu, ngokuvamile kusetshenziswa ibanga lensimbi le-K55 noma ibanga lensimbi le-N80.
Ibhokisi lobuchwepheshe: lisetshenziswa enqubweni yokubhoboza yokwakheka okuyinkimbinkimbi, lapho lihlangana nengqimba yokugoba, ungqimba kawoyela, ungqimba lwegesi, ungqimba lwamanzi, ungqimba olulahlekile, ungqimba lokunamathisela usawoti nezinye izingxenye eziyinkimbinkimbi, kudingeka livalwe, ngaphandle kwalokho ukubhoboza akukwazi ukwenziwa. Eminye iMithombo ijulile futhi iyinkimbinkimbi, futhi ukujula komthombo kuyizinkulungwane zamamitha, lo mthombo ojulile udinga izendlalelo eziningana zebhokisi lobuchwepheshe, izakhiwo zawo zemishini kanye nezidingo zokusebenza kokuvala ziphakeme, ukusetshenziswa kwebanga lensimbi nakho kuphakeme, ngaphezu kwe-K55, ibanga lensimbi le-N80 ne-P110 elingaphezulu, eminye iMithombo ejulile isebenzisa nebanga lensimbi le-Q125 noma elingaphezulu elingeyona i-API njenge-V150. Imininingwane eyinhloko yebhokisi lobuchwepheshe yile: 339.73mm(13-3/8in), 273.05mm(10-3/4in),244.48mm(9-5/8in),219.08mm(8-5/8in),193.68mm(7-5/8in),177.8mm(7in),njll.
Ibhokisi lezingqimba zikawoyela: Uma ubhoboza ungqimba oluqondiwe (ungqimba oluthwala uwoyela negesi), kuyadingeka ukuvala ungqimba lukawoyela negesi kanye nokwakheka okungaphezulu okuveziwe ngebhokisi likawoyela, kanti ipayipi likawoyela lingaphakathi kwebhokisi likawoyela. Kuzo zonke izinhlobo zebhokisi lezingqimba, ukujula kokubhoboza kujule kakhulu, futhi izakhiwo zalo zomshini kanye nezidingo zokusebenza kokuvala nakho kuphakeme kakhulu. Amabanga ensimbi yi-K55, N80, P110, Q125, V150 njalo njalo. Imininingwane eyinhloko yebhokisi lezingqimba yile: 177.8mm(7in),168.28mm(6-5/8in),139.7mm(5-1/2in),127mm(5in),114.3mm(4-1/2in), njll.
Isikhathi sokuthunyelwe: Okthoba-13-2023
5-1203, Indawo Yezimboni yaseDahua, No.2 Yunshui Road, indawo yokuthuthukiswa kobuchwepheshe obuphezulu, eXi'an, 710065, eShayina
86-13609153141
