API Drill Pipehais txog hnyav-lub luag haujlwm, tuab- cov kav dej hollow steel uas ua raws li American Petroleum Institute'sAPI 5DPspecification.
Nws yog lub hauv paus tseem ceeb ntawm txoj hlua laum, txuas cov khoom siv drilling (xws li cov tsav sab saum toj lossis lub rooj teb) mus rauHauv qab qhov sib dhos (BHA). Nyob rau hauv lub ntiaj teb drilling, nws yog feem ntau hu ua "caj qaum" ntawm kev ua haujlwm.
Los ntawm 2-3/8 "rau 6-5/8", peb muab tag nrho cov API 5DP laum yeeb nkab.Nyem qhov no los pib koj qhov kev nug nrog cov kws tshaj lij.
API Drill Pipe Dimensional & Weight Chart
Cov lus no suav nrog ntau tshaj Sab Nraud Diameters (OD), lawv qhov hnyav nominal, thiab cov qauv cuab yeej sib txuas sib txuas nrog lawv.
| Tube OD (inch) | Nominal Nyhav (lb/ft) | Phab ntsa Thickness (inch) | Sab hauv Dia (inch) | Standard Connection (NC/API) |
| 2-3/8" | 6.65 | 0.280 | 1.815 | NC26 (2-3/8" IF) |
| 2-7/8" | 10.40 | 0.362 | 2.151 | NC31 (2-7/8" IF) |
| 3-1/2" | 13.30 | 0.368 | 2.764 | NC38 (3-1/2" IF) |
| 3-1/2" | 15.50 | 0.449 | 2.602 | NC38 (3-1/2" IF) |
| 4" | 14.00 | 0.330 | 3.340 | NC 40 (4" FH) |
| 4-1/2" | 16.60 | 0.337 | 3.826 | NC46 (4" IF) |
| 4-1/2" | 20.00 | 0.430 | 3.640 | NC46 (4" IF) |
| 5" | 19.50 | 0.362 | 4.276 | NC50 (4-1/2" IF) |
| 5" | 25.60 | 0.500 | 4.000 | NC50 (4-1/2" IF) |
| 5-1/2" | 21.90 | 0.361 | 4.778 | 5-1/2 "FH |
| 6-5/8" | 25.20 | 0.330 | 5.965 | 6-5/8 "FH |
| 6-5/8" | 27.70 | 0.362 | 5.901 | 6-5/8 "FH |
API Length ranges
Laum yeeb nkab tsis yog muag raws li qhov ntev tab sis nyob rau hauv "Ranges" txhais los ntawm API.
Ntau yam 1 (R1):18 mus rau 22 ko taw (5.5 - 6.7 m) - Tsis tshua muaj siv rau cov qauv drilling.
Ntau yam 2 (R2):27 mus rau 32 ko taw (8.2 - 9.8 m) -Cov txheej txheem kev lag luam thoob ntiaj teb.
Ntau yam 3 (R3):38 mus rau 45 ko taw (11.5 - 13.7 m) - Siv rau kev sib sib zog nqus dej hiav txwv rigs kom txo tau lub sijhawm sib txuas.
API Steel Qib (Mechanical Properties)
Qib steel txiav txim siab lub zog tawm los thiab lub zog tensile ntawm cov yeeb nkab. Cov qib siab dua yog xav tau rau cov qhov tob tob thiab ntau dua.
| API Qib | Yield zog (psi) | Tensile zog (psi) | Kev siv yam |
| E-75 | 75,000 | 100,000 | Plab mus rau qhov dej nruab nrab. |
| L-95 | 95,000 | 105,000 | Tshwj xeeb load yuav tsum. |
| G-105 | 105,000 | 115,000 | Qhov dej tob / Kev ntxhov siab siab. |
| S-135 | 135,000 | 145,000 | Ultra- qhov tob / complex. |
Hom kev ntxhov siab (Internal / External Thickening)
Vim hais tias cov cuab yeej pob qij txha yog welded rau cov yeeb nkab, qhov kawg ntawm cov yeeb nkab yuav tsum thickened ( chim siab) rau ib tug muaj zog weld.
IU (Internal chim):Phab ntsa yog thickened mus rau sab hauv.
EU (Sab nraud chim):Phab ntsa yog thickened mus rau sab nraud.
IEU (Internal & External chim):Ob sab hauv thiab sab nraud yog thickened.(Qhov feem ntau niaj hnub qauv).
Lub luag haujlwm tseem ceeb ntawm API Drill Pipe
Transmitting torque thiab lub zog:Nws xa lub zog tig los ntawm cov khoom siv saum npoo mus rau qhov xyaum me ntsis hauv qab, tso cai rau me ntsis txiav los ntawm cov pob zeb tsim.
Circulating Drilling Fluid ( av nkos):Cov yeeb nkab yog hollow, tso cai rau cov twj tso kua mis kom ntws cov av nkos mus rau qhov txias, ntxuav lub qhov dej, thiab nqa cov pob zeb txiav rov qab rau saum npoo.
Extending lub Wellbore:Los ntawm kev sib txuas ib leeg cov pob qij txha ntawm cov yeeb nkab (ntxiv cov singles), lub laum txoj hlua lengthens, ua rau me ntsis mus txog qhov tob ntawm ntau txhiab meters.
Txhawb nqa Loads:Lub laum yeeb nkab yuav tsum txhawb nqa qhov hnyav hnyav ntawm tag nrho cov khoom hauv qab hauv qab nws (dhau yeeb nkab, laum dab tshos, me ntsis, thiab lwm yam).
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FAQ
Dab tsi yog qhov txawv ntawm laum yeeb nkab thiab qhov hnyav hnyav laum yeeb nkab?
Hnyav- hnyav laum yeeb nkab (HWDP) muaj phab ntsa tuab 2 mus rau 3 npaug ntau dua li cov pa laum yeeb nkab, thiab yog siv los txo cov kev ntxhov siab ntawm cov yeeb nkab laum thiab laum dab tshos, thaum tseem ua ib feem hloov rau cov hlua tho. Nws yog ntsia nruab nrab ntawm lub laum yeeb nkab thiab laum dab tshos raws li ib qho kev hloov pauv, txo qhov qaug zog tsis ua hauj lwm thiab txhim kho kev xyaum txoj hlua ruaj khov.
Yuav ua li cas txheeb xyuas cov yeeb nkab qib?
Cov qib laum yeeb nkab tuaj yeem raug txheeb xyuas los ntawm cov cim tas mus li ntawm cov yeeb nkab lub cev, uas feem ntau pom meej meej rau ntawm cov yeeb nkab laum lub cev thiab suav nrog cov npe qib xws li E75, X95, G105, S135, thiab lwm yam.
