Casing ndi chitoliro chachitsulo chomwe chimachirikiza makoma a zitsime zamafuta ndi gasi. Chitsime chilichonse chimagwiritsa ntchito zigawo zingapo kutengera kuzama kwa kubowola ndi geology. Casing pambuyo pa chitsime ntchito simenti kuti simenti, casing ndi chubu, kubowola chitoliro ndi osiyana, sangathe reused, ndi wa nthawi imodzi kumwa zipangizo. Chifukwa chake, kugwiritsa ntchito ma casing kumapitilira 70% ya mapaipi onse amafuta. Choyikacho chikhoza kugawidwa mu chitoliro, pamwamba pa casing, casing luso ndi mafuta wosanjikiza casing malinga ndi ntchito, ndi kapangidwe kawo mu chitsime mafuta akuwonetsedwa pa chithunzi.
Chitoliro: makamaka ntchito pobowola m'nyanja ndi m'chipululu, kulekanitsa madzi a m'nyanja ndi mchenga, kuonetsetsa pobowola yosalala, mfundo zazikulu za wosanjikiza casing ichi ndi: ∮762mm(30in) ×25.4mm, ∮762mm(30in) ×19.06mm.
Chophimba pamwamba: chomwe chimagwiritsidwa ntchito pobowola koyamba, kubowola nthaka yofewa mpaka pamwala, kuti asindikize gawo ili la nthaka popanda kugwa, amayenera kugwiritsa ntchito choyikapo pamwamba kuti asindikize. Mfundo zazikuluzikulu za casing pamwamba: 508mm (20in), 406.4mm (16in), 339.73mm (13-3/8in), 273.05mm (10-3/4in), 244.48mm (9-5/8in), etc. kuya kwa chitoliro kumadalira kuya kwa mapangidwe ofewa, omwe nthawi zambiri amakhala 80 ~ 1500m. Kuthamanga kwake kwakunja ndi kupanikizika kwa mkati sikuli kwakukulu, nthawi zambiri kumagwiritsa ntchito kalasi yachitsulo ya K55 kapena kalasi yachitsulo ya N80.
Technical casing: imagwiritsidwa ntchito pobowola mapangidwe ovuta, ikakumana ndi kugwa, wosanjikiza mafuta, gasi wosanjikiza, wosanjikiza madzi, wosanjikiza wotayika, wosanjikiza wa mchere ndi magawo ena ovuta, uyenera kusindikizidwa, apo ayi kubowola kumatha. sizingachitike. Zitsime zina ndi zakuya komanso zovuta, ndipo kuya kwa chitsime ndi mamita masauzande ambiri, chitsime chakuya ichi chimafuna zigawo zingapo za casing yaukadaulo, mawonekedwe ake amakina ndi zofunikira zosindikizira ndizokwera, kugwiritsa ntchito kalasi yachitsulo ndikokweranso, kuwonjezera pa K55, zambiri N80 ndi P110 zitsulo kalasi, zina zakuya Wells amagwiritsanso ntchito Q125 kapena apamwamba non-API zitsulo kalasi monga V150. Mfundo zazikuluzikulu za casing luso ndi: 339.73mm (13-3/8in), 273.05mm (10-3/4in), 244.48mm (9-5/8in), 219.08mm (8-5/8in), 193.68 mamilimita (7-5/8in), 177.8mm (7in), etc.
Chophimba chamafuta: Pobowola mu gawo lomwe mukufuna (mafuta ndi gasi), ndikofunikira kusindikiza wosanjikiza wamafuta ndi gasi ndi mawonekedwe apamwamba owonekera ndi chotengera chamafuta, ndipo chitoliro chamafuta chimakhala mkati mwa chotengera chamafuta. Mumitundu yonse ya ma casing casing, kuya kwa kubowola ndikokuya kwambiri, ndipo mawonekedwe ake amakina ndi zofunikira zosindikizira ndizokwera kwambiri. Makalasi achitsulo ndi K55, N80, P110, Q125, V150 ndi zina zotero. Mfundo zazikuluzikulu za posungira posungira ndi: 177.8mm (7in), 168.28mm (6-5/8in), 139.7mm (5-1/2in), 127mm (5in), 114.3mm (4-1/2in), etc. .
Nthawi yotumiza: Oct-13-2023
Room 703 Building B, Greenland center, Hi-tech Development zone Xi'an, China
86-13609153141
