Xaiv txoj cai API casing tsis yog qhov nyiam; nws yog akev xav taudictated los ntawm kojQhov Zoo Tsim (Drilling Program). Kev yuav qhov loj me lossis cov lus qhia tsis raug tuaj yeem ua rau muaj kev puas tsuaj loj tsis zoo lossis qeeb qeeb.
Simplify koj qhov kev yuav khoom.Rub tawm peb "OCTG Yuav Daim Ntawv Teev Npe & Qeb Sib Piv" kom ntseeg tau tias tsis muaj qhov nthuav dav.
Tshawb xyuas "Casing Tally" lossis "Drilling Program"
Txhua qhov project drilling muaj cov ntaub ntawv tsim los ntawm Drilling Engineer. Koj yuav tsum tsis txhob yuav casing yam tsis pom qhovCasing Specification Sheet. Nws yuav qhia koj txog qhov sib xyaw ua ke ntawm cov hauv qab no:
Qhov "Big Tsib" Specifications (RFQ Qhov Tseem Ceeb)
Thaum koj nug tus neeg muag khoom rau ib qho kev tsocai, koj yuav tsum muab tag nrho tsib yam ntawm cov kev txwv no. Yog tias ib qho ploj lawm, qhov loj me tsis tiav.
A. Sab nraud txoj kab uas hla (OD)
Qhov no yog lub cev loj (piv txwv li, 9-5/8 ").
Yuav paub li cas:Nws yog txiav txim siab los ntawm qhov loj ntawm qhov drilled thiab "Drift" (kev tshem tawm) xav tau rau cov hlua txuas ntxiv ntawm cov yeeb nkab lossis cov cuab yeej kom dhau mus.
Common Progression:13-3/8 "(Nto) → 9-5/8" (Intermediate) → 5-1/2" (Tshuaj).
B. Nominal Nyhav (lb/ft)
Qhov no sawv cev rau phab ntsa thickness. Piv txwv li, 9-5/8 "casing los ntawm 36.0, 40.0, 43.5, 47.0, los yog 53.5 lb / ft.
Yuav paub li cas:Cov hnyav hnyav muaj cov phab ntsa tuab. Koj yuav cov yeeb nkab hnyav dua yog tias tus engineer xav tau siabkev poob siab(los ntawm lub ntiaj teb) los yogtawg siab(los ntawm cov roj / roj).
C. Steel Qib (API 5CT)
Qhov no txiav txim siab lub zog thiab tshuaj tiv thaiv.
Txheem (J55 / K55 / N80):Rau kev niaj hnub, tsis yog - qhov dej corrosive.
Sour Service (L80/C90/T95):Yuav tsum tau yog lub qhov dej muajHydrogen sulfide (H2S ).
Lub zog siab (P110 / Q125):Rau ultra- tob, siab - qhov dej siab.
D. Kev sib txuas (Xov hom)
Kev sib txuas yog qhov feem ntau ntawm kev ua tsis tiav.
API LTC (Long Round):Tus qauv rau cov qhov dej ntsug.
API BTC (Buttress):Siv rau cov hlua hnyav uas xav tau lub zog tensile ntau dua (kom tiv thaiv "rub- tawm").
Kev sib txuas hwm hwm:Yog tias koj tab tom drilling aSiab -Pressure Gas Well, koj yuav tsum yuav Cov Xov Tooj (piv txwv li, VAM lossis Tenaris) rau roj- nruj hlau- rau- hlau foob.
E. Ntau yam (Length)
API casing los ntawm peb qhov ntev:
Ntev 2 (25-34 ft / 7.6-10.4 m):Covkev lag luam tus qauv. Feem ntau cov rigs yog tsim los tswj qhov ntev.
Ntau Yam 3 (34–48 ft / 10.4–14.6 m):Siv rau kev sib sib zog nqus ntawm ntug dej los yog cov qhov dej sib sib zog nqus kom txuag tau lub sijhawm (tsawg dua kev sib txuas), tab sis yuav tsum muaj lub tshuab siab dua.
Txheeb xyuas qhov "Drift" Requirement
Yog tias koj tab tom yuav casing rau ib txoj hlua nruab nrab, koj yuav tsum xyuas kom meejDrift Diameter(lub guaranteed internal clearance) yog loj txaus rau lub tom ntej no laum me ntsis kom dhau mus.
Piv txwv li: Yog tias koj qhov me ntsis tom ntej yog 8-1/2", koj lub casing yuav tsum muaj ib txoj kab uas hla ntawm yam tsawg 8-5/8".
Nkag siab PSL-1 vs. PSL-2
Cov neeg yuav khoom txawv teb chaws feem ntau nug yog tias lawv xav tauPSL-1(Standard) los yogPSL-2(Strict quality control).
PSL-2feem ntau yuav tsum tau rau sab ntug dej hiav txwv los yog siab - qhov dej muaj kev pheej hmoo vim nws suav nrog qhov yuav tsum tau kuaj qhov cuam tshuam thiab nruj dua cov tshuaj tiv thaiv.
Yuav Ua Li Cas RFQ Professional Yuav Tsum Saib
Txhawm rau kom ntseeg tau tias koj tau txais cov khoom tsim nyog thiab tus nqi, koj qhov kev nug rau tus neeg muag khoom yuav tsum zoo li no:
RFQ Specification Piv txwv:
Khoom siv:API 5CT Casing
Loj: 9-5/8"
Qhov hnyav:40.0 Ib/ft
Qib:L80 (Sour Service)
Kev sib txuas:BTC
Ntau yam:Ntau yam 2
Ntim:10,000 Feet
PSL Qib:PSL-2
GNEE API Casing txheej txheem kab
GNEE API OCTG Casing Pipe test equipments
GNEE Oil Well OCTG Casing Certificate
FAQ
Dab tsi ntawm cov hlau siv hauv API 5CT casing?
API 5CT steel qib tau muab faib ua plaub pawg loj:
Lub Hom Phiaj (J55, K55, N80):Feem ntau thiab tus nqi-zoo rau tus qauv, ntiav-rau- qhov dej nruab nrab.
Sour Service (L80, C90, T95,C110):Tshwj xeeb tsim rauH2S (corrosive)ib puag ncig; lawv tau tswj hardness.
Siab zog (P110):Rautob thiab siab -siabqhov dej; nws muaj peev xwm thauj khoom siab tab sis tsis muaj H2S tsis kam.
Ultra{0}}High Strength (Q125):Rau qhov tob tob thiab qhov xav tau zoo tshaj plaws.
OCTG casing thiab tubing yog dab tsi?
OCTGsawv rauRoj Lub Tebchaws Tubular Khoom. Nws yog lub npe sib sau ua ke rau cov kav hlau tshwj xeeb uas siv rau hauv qhov drilling, ua tiav, thiab tsim cov roj thiab cov qhov dej.
Ob hom thawj yog:
Casing:Qhov loj - txoj kab uas hla cov yeeb nkab cemented rau hauv borehole. Nws ua haujlwm raws li cov txheej txheem ruaj khov los tiv thaiv lub qhov dej los ntawm kev sib tsoo thiab tiv thaiv cov dej hauv av los ntawm kev sib kis.
Tubing:Cov yeeb nkab me me - txoj kab uas hla tso rau hauv lub casing. Nws ua raws li cov kav dej uas cov roj thiab cov pa ntws los ntawm cov dej hauv av mus rau saum npoo.
