Tubing thiab casing coupling cov ntaub ntawv yog ib feem tseem ceeb ntawm cov roj thiab roj qhov dej.
Lawv tuaj nyob rau hauv ntau yam duab, qhov ntau thiab tsawg, muaj zog, thiab cov ntaub ntawv nyob ntawm qhov chaw ua haujlwm thiab daim ntawv thov.
Cov khoom siv feem ntau siv rau tubing thiab casing couplings yog carbon steel, stainless hlau, bronze, txhuas, tooj dag, tooj liab alloy thiab thermoplastic. Txhua yam khoom muaj nws cov khoom tshwj xeeb uas ua rau nws haum rau ntau hom kev ua haujlwm.
Cov pa roj carbon steel yog cov khoom siv ntau tshaj plaws ntawm tubing thiab casing coupling khoom.
Nws yog pheej yig dua piv rau lwm cov kev xaiv, tseem muaj zog txaus rau ntau daim ntawv thov.
Cov pa roj carbon steel kuj tiv taus corrosion thiab kub heev. Stainless hlau yog lwm qhov kev xaiv nrov rau tubing thiab casing couplings vim nws lub zog siab-rau-hnyav piv thiab tiv thaiv corrosion hauv acidic ib puag ncig.
Bronze yog ib qho kev xaiv zoo tshaj plaws thaum cov kev cai nruj torque yuav tsum tau ua raws li nws cov khoom muaj zog dua li lwm cov kev xaiv hlau xws li txhuas lossis tooj dag.
Copper alloy muaj superior corrosion kuj thaum immersed nyob rau hauv dej ntsev los yog lwm yam corrosive kua, thaum txhuas muab zoo hluav taws xob conductivity ua ke nrog lub teeb yuag zog.
Thaum kawg, cov thermoplastics muab kev hloov pauv siab, uas tuaj yeem pab txo qis kev co suab nrov nrog rau cov tshuaj tiv thaiv hauv qee yam kev siv.
Txhua yam ntawm cov ntaub ntawv no muaj nws cov txiaj ntsig uas yuav tsum tau txiav txim siab thaum xaiv cov khoom sib txuas rau ib qho chaw ua haujlwm lossis daim ntawv thov.
Ua ntej xaiv cov khoom sib txuas, nws yog ib qho tseem ceeb uas yuav tsum xav txog tej yam xws li qhov chaw ua haujlwm (qhov kub thiab txias, raug submerged), qhov yuav tsum tau muaj torque theem, ntev npaum li cas koj xav kom lub cev qhov chaw nyob, thiab seb lub chaw ua hauj lwm puas xav tau kev sib txuas tsis yog hlau lossis hlau.
Tsis tas li ntawd, nyob ntawm seb hom kev sib txuas tau ua, cov ntaub ntawv sib txawv tuaj yeem siv tau (API threads lossis Premium threads).
Thaum kawg, xaiv cov khoom sib txuas zoo yuav ua kom paub tseeb tias koj txoj haujlwm oilfield muaj kev nyab xeeb thiab yuav tau txais txiaj ntsig zoo tshaj plaws ntawm koj lub cev.
Kev sib piv ntawm cov khoom vaj khoom tsev
Thaum xaiv cov khoom zoo tshaj plaws rau tubing thiab casing couplings, nws yog ib qho tseem ceeb uas yuav tau xav txog cov khoom siv. Cov ntaub ntawv sib txawv muaj qhov zoo sib txawv, yog li nws yog ib qho tseem ceeb kom nkag siab tias cov khoom zoo li cas rau daim ntawv thov.
Qee qhov kev xaiv cov khoom siv sib txuas feem ntau suav nrog hlau, stainless hlau, txhuas, tooj dag, thiab tooj liab.
Hlau yog qhov kev xaiv nrov rau ntau daim ntawv thov vim nws lub zog thiab kav ntev. Nws muaj lub zog tensile ntau dua li lwm cov hlau, txhais tau tias nws tuaj yeem tiv taus siab siab yam tsis muaj kev tawg lossis ua deformed.
Hlau kuj yog corrosion resistant thiab yuav siv tau nyob rau hauv ib puag ncig nrog huab cua kub. Txawm li cas los xij, cov hlau tuaj yeem ua rau xeb yog tias tsis raug kaw lossis coated.
Stainless hlau yog ib qho alloy ntawm hlau thiab chromium uas muaj kev tiv thaiv zoo tshaj plaws tiv thaiv corrosion piv rau cov hlau tsis tu ncua. Nws kuj muaj cov cuab yeej zoo heev xws li lub zog tensile siab thiab qaug zog ua haujlwm. Stainless hlau feem ntau yog siv nyob rau hauv daim ntawv thov uas tsis tshua muaj siab kub siab tam sim no vim nws superior kub stability. Txawm li cas los xij, stainless hlau tuaj yeem kim dua li lwm cov khoom sib txuas.
Aluminium yog lwm qhov kev xaiv nrov rau couplings vim nws lub teeb yuag thiab zoo corrosion kuj muaj peev xwm thaum anodized los yog pleev xim rau. Nws kuj yog ib qho yooj yim rau tshuab thiab tsim rau hauv cov duab sib txawv nrog kev siv zog tsawg. Aluminium feem ntau yog siv rau hauv cov ntawv thov uas tsis tshua muaj siab vim nws muaj lub zog tensile qis dua li lwm cov hlau xws li steel lossis stainless hlau.
Brass thiab bronze yog ob qho sib txawv alloys ua los ntawm tooj liab thiab zinc uas muaj cov khoom zoo corrosion kuj nrog rau cov khoom siv hluav taws xob zoo. Lawv tuaj yeem siv rau hauv cov dej ntub lossis qhuav nrog qhov tsawg kawg nkaus ntawm oxidation lossis xeb thaum lub sijhawm. Brass muaj lub zog tensile me ntsis dua li tooj liab tab sis ob qho tib si hlau kuj yog mos piv rau lwm cov ntaub ntawv sib txuas uas ua rau lawv yooj yim rau kev ua hauj lwm nrog rau cov txheej txheem installation.
Zuag qhia tag nrho, txhua yam khoom sib txuas muaj qhov zoo sib txawv nyob ntawm qhov chaw uas lawv tau siv nyob rau hauv yog li nws yog ib qho tseem ceeb uas yuav tau xaiv qhov zoo rau daim ntawv thov ntawm tes. Piv txwv li, aluminium tej zaum yuav haum rau cov ntawv thov uas tsis tshua muaj siab thaum stainless hlau tuaj yeem ua tau zoo dua rau cov xwm txheej siab dua vim nws cov yam ntxwv zoo tshaj qhov kub thiab txias.
Vigor cov kws tshaj lij muaj ntau xyoo ntawm kev ua haujlwm hauv kev ua haujlwm thiab kev paub dhau los hauv kev tsim cov khoom tshiab hauv kev lag luam roj thiab roj, yog tias koj txaus siab rau drilling thiab ua tiav cov cuab yeej hauv kev lag luam roj thiab roj, thov tsis txhob yig tiv tauj peb. kom tau Vigor muab koj cov khoom zoo tshaj plaws thiab cov kev pabcuam tshaj lij.
