Aseamless steel pipeis lub circularpipehaving ib ntu hollow thiab tsis muaj nqaws nyob ib puag ncig nws. ... Seamless pipeare pom tias zoo dua rau weldedpipesas lawv tau tsim siv monolithicsteelbillets, nrog kev siv tshuab lub zog tsis muaj zog, tsis muaj qhov txuas seam.
Thedifference hauv thebasic manufacturing method yog pom tseeb los ntawm cov npe.Seamlesstube yog extruded thiab kos los ntawm daim ntawv billet whileweldedtube yog tsim los ntawm cov khoom txaij uas yog yob tsim andweldedto tsim lub raj. ... Feem ntau cov leeg tub (seamlessandwelded) yog kos tsim kom tsim tawm qhov kawg ntawm kev thev naus laus zis.
Seamless steel yeeb nkab tsuas yog siv rau kev xa hluav taws xob, raj dej tub ntxhais thiab cov yeeb nkab drilling. Rau peb qhov tshwj xeeb cov yeeb nkab steel, lawv xav tau qib siab steel thiab xav tau kev kho tshwj xeeb rau cov yeeb nkab nto.
Tho yeeb nkab, yog hollow, nyias-walled, hlau los yog aluminium alloy piping uas tau siv nyob rau rigs rigs. Nws yog hollow tso cai rau kua dej tawm kom xau tawm lub qhov los ntawm lub ntsis thiab rov qab tawm hauv lub xyoo. Nws los ntawm ntau qhov ntau thiab tsawg, qhov ua tau zoo, thiab phab ntsa tuab, tab sis feem ntau 27 txog 32 ko taw nyob ntev (Ntau 2). Ntev ntev dua, mus txog 45 taw, muaj (Ntu 3).
Cov laum lev yuav tsum tsim los hloov qhov drilling torque rau cov qhov ntev ua ke uas feem ntau ntau dua ob peb mais mus rau hauv Ntiaj Teb' s lub ntsej muag, thiab kuj yuav tsum muaj peev xwm tiv taus lub zog qhov txawv ntawm sab hauv thiab sab nraud (lossis sab nraud), thiab muaj txaus lub zog kom muab ncua tag nrho qhov hnyav ntawm qhov tob hauv cov khoom sib txuas. Kev sib sib zog nqus qhov no xav tau tempered steel leeg uas kim heev, thiab cov tswv tau siv dag zog ntau yam rau rov qab siv lawv tom qab ua tiav lub qhov dej.
Lub laum siv kav yuav tshuaj ntsuam xyuas rau ntawm qhov chaw, lossis chaw tawm. Ultrasonic kuaj thiab hloov cov twj zoo ib yam li spherometer siv nyob rau hauv cov chaw soj ntsuam kom paub qhov tsis xws luag los ntawm cov hlau tsis muaj zog, txhawm rau txhawm rau txhawm rau ua kom tawg ntawm cov laum kav dej thaum yav tom ntej zoo. Cov laum yeeb nkab feem ntau pom tias yog chav kawm zoo tshaj plaws, uas yog 80% cov seem ntawm lub cev ntsa (RBW). Tom qab kuaj xyuas pom tias RBW qis dua 80%, cov yeeb nkab tau suav tias yog Class 2 lossis" qhab daj" yeeb nkab. Nws thiaj li lub laum yeeb nkab yuav muab laij raws li cov seem thiab cim nrog txoj kab liab liab.
Tho yeeb nkab yog ib feem ntawm txoj hlua ntawm tag nrho. Lub laum hlua muaj ob qho tib si laum yeeb nkab thiab hauv qab lub qhov sib dhos (BHA), uas yog cov tubular feem ze rau me ntsis. Lub BHA yuav ua rau cov phab ntsa tuab dua hnyav hnyav hnyav hnyav yeeb nkab (HWDP) thiab lub tsho me, uas muaj qhov loj dua sab nraud taub thiab muab qhov hnyav rau cov laum me ntsis thiab txhav rau lub rooj sib dhos drilling. Lwm qhov sib xyaw BHA tuaj yeem suav nrog cov av nkos, ntsuas thaum rub (MWD) cuab yeej, lub tshuab kom ruaj khov, thiab ntau yam khoom siv tshwj xeeb qis qis. Lub laum qov yuav suav tag nrho txoj hlua laum, ntxiv rau kelly tias cuam tshuam kev sib hloov thiab sib zog rau lub laum yeeb nkab rau saum.
