Cov yeeb nkab laum tau muab faib ua peb pawg: square laum yeeb nkab (Kelly), cov yeeb nkab txheem txheem, thiab hnyav- hnyav laum yeeb nkab. Kev sib txuas ua ke yog raws li hauv qab no: square laum yeeb nkab (1 sib koom ua ke) + txheem laum yeeb nkab (*n* pob qij txha, txiav txim siab los ntawm qhov tob tob) + hnyav- hnyav laum yeeb nkab (*n* pob qij txha, txiav txim siab los ntawm txoj hlua sib dhos tsim).
Square Laum Pipe (Kelly)
Lub square laum yeeb nkab yog positioned nyob rau hauv lub Uppermost kawg ntawm lub laum txoj hlua; Nws muaj nyob rau hauv ob configurations: square (plaub-sided) thiab hexagonal (rau-sided).
Muaj nuj nqi
① Thaum lub sijhawm ua haujlwm drilling, lub square laum yeeb nkab koom nrog tus tswv bushing thiab cov lus teb ntxig kom xa cov torque los ntawm qhov chaw mus rau lub laum yeeb nkab, yog li tsav tag nrho cov hlua tho thiab laum me ntsis tig;
② Nws txhawb nqa tag nrho qhov hnyav ntawm txoj hlua tho;
③ Nws ua haujlwm raws li cov kav dej rau kev ncig ntawm cov dej drilling.
Qauv
Lub square laum yeeb nkab muaj cov cuab yeej sab sauv thiab sab qis thiab cov yeeb nkab lub cev seem. Cov yeeb nkab lub cev nta ob lub xwmfab lossis hexagonal cross-section (square configurations are predominant in oil drilling operations). Cov cuab yeej sab sauv sib koom ua ke nta sab laug- tes sab hauv (poj niam) xov, uas txuas rau lub voj voog; sab laug no - tes xov tiv thaiv kev sib tsoo unscrewing (rov qab-tawm) thaum tig. Cov cuab yeej qis dua sib koom ua ke muaj txoj cai- tes sab nraud (txiv neej) xov, uas txuas rau tus qauv tho yeeb nkab. Thaum lub sijhawm ua haujlwm, qhov kawg ntawm lub square laum yeeb nkab tseem nyob saum toj ntawm cov lus teb, thaum seem qis tseem nyob hauv qab nws.
Standard Drill Pipe
Muaj nuj nqi
Standard laum yeeb nkab yog qhov tseem ceeb ntawm cov hlua laum. Nws lub luag haujlwm tseem ceeb yog xa cov rotational torque thiab xa cov kua dej drilling, thiab - los ntawm kev sib ntxiv ntawm cov yeeb nkab txuas ntxiv - kom txuas ntxiv mus tob rau hauv qhov dej. Yog li ntawd, tus txheej txheem laum yeeb nkab occupies ib txoj hauj lwm ntawm qhov tseem ceeb ntawm cov roj drilling ua hauj lwm.
Qauv
Standard laum yeeb nkab yog tsim los ntawm seamless steel tubing, feem ntau featuring phab ntsa thickness ntawm 9 mus rau 11 hli. Nws muaj ob qhov tseem ceeb: cov yeeb nkab lub cev thiab cov cuab yeej sib txuas; cov yeeb nkab lub cev thiab cov cuab yeej cuab tam tau koom ua ke siv kev sib txhuam vuam.
Heavy- Nyhav Laum Pipe (HWDP)
Hnyav- hnyav laum yeeb nkab yog zoo ib yam li cov qauv tho yeeb nkab, uas muaj lub hollow steel raj li ntawm 10 meters ntev. Txawm li cas los xij, qhov hnyav ntawm ib qho kev sib koom ua ke yog ntau dua li ntawm cov qauv tho yeeb nkab, thiab nws cov phab ntsa thickness yog ob mus rau peb npaug ntawm cov yeeb nkab txheem. Hnyav- hnyav laum yeeb nkab yog nyob nruab nrab ntawm tus qauv laum yeeb nkab thiab lub laum dab tshos; nws lub hom phiaj yog los tiv thaiv kev qaug zog tsis ua haujlwm los ntawm kev hloov pauv sai ntawm tus ntoo khaub lig-sectional geometry ntawm lub laum hlua sib dhos. Tsis tas li ntawd, nws tuaj yeem ua ib feem hloov pauv rau cov dab tshos laum; Txawm li cas los xij, nws muaj qhov zoo ntawm kev tuav yooj yim dua thiab yooj yim dua thaum lub sijhawm ua haujlwm tripping (khiav hauv thiab rub tawm ntawm lub qhov), yog li pab txo qis tag nrho lub sijhawm tripping.