Casing yog cov yeeb nkab steel uas txhawb nqa cov phab ntsa ntawm cov roj thiab cov qhov dej. Txhua qhov dej siv ob peb txheej ntawm casing nyob ntawm qhov tob drilling thiab geology. Casing tom qab lub qhov dej siv cov cement rau cement, casing thiab tubing, laum yeeb nkab sib txawv, nws tsis tuaj yeem rov qab siv dua, belongs rau cov khoom siv ib zaug. Yog li, casing noj nyiaj ntau dua 70% ntawm tag nrho cov kav dej zoo. Casing yuav muab faib ua yeeb nkab, nto casing, technical casing thiab roj txheej casing raws li kev siv, thiab lawv cov qauv nyob rau hauv cov roj zoo yog qhia nyob rau hauv daim duab.
Cov yeeb nkab: feem ntau yog siv hauv dej hiav txwv thiab suab puam drilling, cais cov dej hiav txwv thiab cov xuab zeb, kom ntseeg tau tias cov drilling du, cov ntsiab lus tseem ceeb ntawm cov txheej txheem no yog: ∮762mm (30in) × 25.4mm, ∮762mm (30in) × 19.06mm.
Nta casing: Feem ntau yog siv rau thawj qhov drilling, drilling cov muag muag rau lub txaj, kom thiaj li ntim cov hauv av yam tsis muaj kev sib tsoo, yuav tsum tau siv cov nplaim hluav taws rau kev sib khi. Cov ntsiab lus tseem ceeb ntawm cov npoo npoo: 508mm (20in), 406.4mm (16in), 339.73mm (13-3/8in), 273.05mm (10-3/4in), 244.48mm (9-5/8in), thiab lwm yam. Qhov tob ntawm cov yeeb nkab yog nyob ntawm qhov tob ntawm qhov muag muag, uas feem ntau yog 80 ~ 1500m. Nws lub siab sab nraud thiab sab hauv siab tsis loj, feem ntau siv K55 steel qib lossis N80 steel qib.
Technical casing: yog siv nyob rau hauv cov txheej txheem drilling ntawm complex tsim, thaum nws ntsib lub cev qhuav dej txheej, roj txheej, roj txheej, dej txheej, poob txheej, ntsev paste txheej thiab lwm yam complex qhov chaw, nws yuav tsum tau muab kaw, txwv tsis pub lub drilling tau. tsis tau ua. Qee qhov dej tob tob thiab nyuaj, thiab qhov tob ntawm lub qhov dej yog ntau txhiab meters, qhov tob tob no yuav tsum muaj ntau txheej txheej txheej txheem, nws cov khoom siv kho tshuab thiab kev sib khi ua haujlwm siab, kev siv cov qib steel kuj siab dua, ntxiv rau. K55, ntau N80 thiab P110 steel qib, qee qhov sib sib zog nqus Wells kuj siv Q125 lossis siab dua tsis yog API steel qib xws li V150. Cov ntsiab lus tseem ceeb ntawm cov txheej txheem yog: 339.73mm (13-3/8in), 273.05mm (10-3/4in), 244.48mm (9-5/8in), 219.08mm (8-5/8in), 193.68 mm (7-5/8in), 177.8mm (7in), thiab lwm yam.
Roj txheej casing: Thaum drilling mus rau hauv lub hom phiaj txheej (cov roj thiab cov roj bearing txheej), nws yog ib qhov tsim nyog los muab cov roj thiab roj txheej thiab sab sauv exposed tsim nrog roj casing, thiab cov roj yeeb nkab nyob rau hauv lub roj casing. Nyob rau hauv txhua yam ntawm casing casing, qhov drilling qhov tob yog qhov tob tshaj plaws, thiab nws cov khoom siv kho tshuab thiab sealing kev ua tau zoo yog qhov siab tshaj plaws. Cov qib steel yog K55, N80, P110, Q125, V150 thiab lwm yam. Lub ntsiab specifications ntawm reservoir casing yog: 177.8mm (7in), 168.28mm (6-5/8in), 139.7mm (5-1/2in), 127mm (5in), 114.3mm (4-1/2in), thiab lwm yam .
Post lub sij hawm: Oct-13-2023
Room 703 Building B, Greenland center, Hi-tech development Zone Xi'an, Suav teb
86-13609153141
