Pup joint casingyog ib qho tseem ceeb hauv kev tsim kho thiab ua tiav cov roj thiab roj qhov dej. Cov ntu luv ntawm cov yeeb nkab no ua haujlwm rau ntau lub hom phiaj, los ntawm kev kho qhov ntev ntawm cov hlua khi kom muab cov haujlwm tshwj xeeb hauv kev xav tau ib puag ncig zoo. Nws muaj pes tsawg hom?
Standard Casing Pup Joints
TxujPup joint casingyog hom siv ntau tshaj plaws hauv kev tsim kho zoo. Cov no yog cov qauv luv luv ntawm cov kav dej tsis tu ncua, tsim los muab kev yooj yim hauv kev kho qhov ntev ntawm cov hlua casing kom tau raws li qhov xav tau qhov tob.
◆ Yam ntxwv:
①Length: Tus qauv pup pob qij txha feem ntau yog li ntawm 2 mus rau 12 ko taw ntev, nrog rau 3- ko taw thiab 6- ko taw ntu yog feem ntau.
② Khoom siv: Lawv feem ntau yog tsim los ntawm tib yam khoom raws li cov hlua tseem ceeb, kom ntseeg tau tias muaj zog thiab tiv thaiv corrosion.
③Thread Hom: Pup pob qij txha tuaj nrog ntau hom xov kom phim cov hlua casing. Cov no tuaj yeem yog API (American Petroleum Institute) cov qauv xov lossis cov kev sib txuas uas tsim los ntawm cov tuam txhab tsim khoom rau cov ntawv thov tshwj xeeb.
④ Qhov ntau thiab tsawg: Muaj nyob rau hauv ntau qhov ntau thiab tsawg kom phim cov qauv casing diameters, los ntawm 4 1/2 ntiv tes rau 20 ntiv tes lossis ntau dua.
⑤ Ua raws li: Cov txheej txheem casing pup pob qij txha ua raws li API 5CT cov lus qhia, ua kom lawv ua tau raws li cov qauv kev lag luam rau kev ua tau zoo thiab kev ua haujlwm.
Qhov tseem ceeb ntawm kev siv cov pob qij txha tus qauv yog los kho qhov ntev ntawm txoj hlua casing, uas yog qhov tseem ceeb heev thaum qhov kev tso kawm qhov tob yog qhov yuav tsum tau ua kom tiav cov haujlwm zoo.
Perforated Pup Joints
Perforated pup pob qij txha yog cov khoom tshwj xeeb uas tsim los nrog cov qauv tshwj xeeb ntawm lub qhov lossis cov qhov tso cai rau kev tswj cov kua dej. Cov pob qij txha no ua lub luag haujlwm tseem ceeb hauv ntau yam kev siv downhole, tshwj xeeb tshaj yog nyob rau hauv kev saib xyuas kom zoo thiab kev tswj xyuas qhov xwm txheej.
Sour Service Pup Joints
Cov kev pabcuam qaub qaub pob qij txha yog tsim tshwj xeeb los tiv thaiv qhov hnyav, corrosive ib puag ncig pom nyob rau hauv qib siab hydrogen sulfide (H2S) lossis carbon dioxide (CO2) qhov dej. Cov khoom tshwj xeeb no yog qhov tseem ceeb rau kev tswj kom muaj kev ncaj ncees nyob rau hauv corrosive downhole tej yam kev mob, xws li cov av qaub.
◆ Yam ntxwv:
①Material Composition: Feem ntau yog tsim los ntawm cov hlau tshwj xeeb uas muaj kev tiv thaiv siab rau sulfide kev nyuaj siab tawg (SSC) thiab lwm yam kev xeb.
② Ua raws li: Yuav tsum ua kom tau raws li lossis dhau NACE MR0175 / ISO 15156 tus qauv rau cov khoom siv hauv H2S-muaj ib puag ncig.
③Hardness Control: Ua tib zoo tswj cov qib hardness kom sib npaug zog nrog kev tiv thaiv hydrogen-induced cracking.
④ Kev Kho Hniav: Qhov no yuav suav nrog kev kho mob tshwj xeeb lossis txheej txheej rau kev tiv thaiv corrosion ntxiv.
Qib siab Chromium
High chromium qib pup pob qij txha sawv cev rau qhov kawg ntawm lub zog thiab kev tiv thaiv corrosion hauv cov khoom siv zoo. Cov pob qij txha tshwj xeeb no yog tsim los tiv thaiv kev kub ntxhov, kub, thiab corrosive ib puag ncig, ua rau lawv zoo tagnrho rau qhov nyuaj tshaj plaws.
◆ Yam ntxwv:
①Chromium Cov ntsiab lus: Feem ntau muaj 13% lossis ntau dua chromium, uas tsim cov txheej txheem oxide tiv thaiv ntawm qhov chaw.
②Strength: Muab lub zog ua haujlwm siab, feem ntau tshaj 80, 000 psi (13Cr80) lossis 95, 000 psi (13Cr95).
③ Corrosion Resistance: Zoo heev tiv thaiv CO2 corrosion thiab nruab nrab tsis kam rau H2S.
④ Kev kho cua sov: Kev kho cua sov tshwj xeeb kom ua tiav cov khoom xav tau.
⑤ Ua raws li: Ua tau raws li API 5CT thiab NACE MR0175 / ISO 15156 tus qauv rau kev siv hluav taws xob siab, kub siab (HPHT).
Vigor yuav muab cov kev daws teeb meem txhim khu kev qha rau kojPup joint casing, Thov hu rau peb ntawminfo@vigorpetroleum.com.
