Heavy Weight Drill Pipe (HWDP)yog ib qho tseem ceeb ntawm kev hloov pauv nyob rau hauv txoj hlua xyaum. Nws yog positioned ntawm tus qauv laum yeeb nkab saum toj no thiab lub laum dab tshos hauv qab no.
Tsis zoo li tus qauv laum yeeb nkab, uas yog cais los ntawm API 5DP qib (xws liE-75, G-105, lossis S-135),Heavy Weight Drill Pipe (HWDP)feem ntau yog tsim los rau cov qauv khoom sib txawv vim nws yog ib qho kev hloov pauv ntawm cov yeeb nkab uas hloov tau yooj yim thiab cov hlua khauj khaum.
Nrhiav kev lag luam tus qauv?Nug txog peb cov kev daws teeb meem API 7-1 raws HWDP hnub no!
Khoom siv: AISI 4145H (Hloov kho)
Feem ntau HWDP yog tsim los ntawmAISI 4145H (Hloov kho)hlau alloy. Qhov no yog Chromium-Molybdenum (Cr-Mo) quenched thiab tempered steel.
Vim li cas?Cov khoom no raug xaiv rau nws qhov tob tob - cov yam ntxwv hardening, toughness, thiab tsis kam ua rau qaug zog. Nws yog tib yam siab - cov khoom siv zog siv rauLaum dab tshos.
Yield Strength Specs
Thaum nws tsis tas yuav siv "Letter" qib ntawm cov yeeb nkab txheem, nws cov khoom siv tshuab yog siab heev:
Yield zog:Feem ntau110,000 psi rau 120,000 psiyam tsawg kawg nkaus.
Tensile zog:Feem ntau ib ncig140,000 psiyam tsawg kawg nkaus.
Kev ua tau zoo:Nyob rau hauv cov nqe lus ntawm lub zog, nws yog piv rau los yog muaj zog tshajAPI Qib S-135, tab sis nrog ntau cov phab ntsa tuab los muab qhov hnyav.
API Specification 7-1
Standard laum yeeb nkab ua raws liAPI 5DP, tab sis Heavy Weight Drill Pipe yog tswj hwm los ntawmAPI Spec 7-1(Specification rau Rotary Drilling Equipment). Cov txheej txheem no tsom mus rau cov khoom siv kho tshuab thiab qhov ntev ntawm cov cuab yeej sib koom ua ke thiab cov khoom siv nruab nrab ntawm cov ntaub qhwv.
Nws tuaj yeem ua "Standard" Qib?
Qee lub sij hawm, koj yuav pom HWDP raug xa mus rau hauv cov ntsiab lus ntawm cov qauv yeeb nkab qib rau lub hom phiaj ntawm kev yooj yim hauv kev xyaum hlua tsim:
Standard HWDP:Feem ntau kho raws li qhov sib npaugG-105los yogS-135qib kev ua haujlwm.
Sour Service HWDP:Yog hais tias cov yeeb nkab yog meant rau H2S ib puag ncig, nws yuav raug tsim los rau qis hardness theem (xws liQib L-95los yog cov qib tshwj xeeb uas muaj tswv) los tiv thaiv sulfide kev nyuaj siab tawg.
HWDP vs. Standard Drill Pipe
| Feature | Standard Drill Pipe | Heavy Weight Drill Pipe (HWDP) |
| API Standard | API 5DP | API Spec 7-1 |
| Khoom siv | Carbon / Alloy hlau | AISI 4145H (Hloov kho) |
| Yield zog | 75k-135k psi | 110k – 120k psi |
| Kev tsim kho | Cov yeeb nkab welded rau cov cuab yeej sib txuas | Feem ntauKev tsis sib xws(ib thooj) los yog welded |
| Lub Hom Phiaj Tseem Ceeb | Torque & Fluid Flow | Nyhav ntawm Bit & Hloov |
Hnyav hnyav laum yeeb nkab Hoobkas
Heavy hnyav laum yeeb nkab kuaj cov cuab yeej
Hnyav hnyav laum yeeb nkab daim ntawv pov thawj
FAQ
Dab tsi yog qhov kev siv ntawm qhov hnyav laum yeeb nkab?
Hnyav hnyav laum yeeb nkab (HWDP) feem ntau yog siv los txo qhov kev hloov pauv sai ntawm qhov tawv nqaij ntawm cov hlua tho thiab cov yeeb nkab laum li niaj zaus, yog li txo qhov qaug zog ntawm txoj hlua xyaum. Nruab nruab nrab ntawm lub laum dab tshos thiab cov pa laum yeeb nkab ua ib ntu kev hloov pauv, HWDP zoo faib cov kev ntxhov siab khoov thiab tiv thaiv kev puas tsuaj ntawm kev sib txuas los ntawm kev ntxhov siab.
Tsis tas li ntawd, HWDP ua haujlwm rau ntau lub luag haujlwm tseem ceeb:
Kev hloov ib nrab ntawm cov laum dab tshos: Hauv kev taw qhia lossis slimhole drilling, HWDP tuaj yeem hloov pauv rau ib feem ntawm cov hlua tho, txo qhov hnyav tag nrho ntawm lub hauv qab qhov sib dhos thiab txhim kho kev ua haujlwm yooj yim.
Lub kaum sab xis thiab txoj kev tswj hwm: Cov hnav- cov hlua tiv thaiv nyob rau hauv nruab nrab ntawm cov yeeb nkab lub cev ua haujlwm ruaj khov, pab tswj qhov inclination thiab azimuth cov ces kaum, yog li txo qis qhov sib txawv ntawm qhov zoo.
Txhim kho qhov muaj peev xwm drilling: Nyob rau hauv tib qhov sib txuas load, siv HWDP nce qhov tob qhov tob ntawm cov rig.
Txhim kho kev nuv ntses thiab tripping efficiency: Piv nrog rau cov dab tshos laum, HWDP yooj yim dua rau kev ua haujlwm nuv ntses, ua rau lub sijhawm luv luv, thiab yooj yim dua los tuav.
Dab tsi yog qhov sib txawv ntawm cov yeeb nkab laum?
API laum yeeb nkab steel qib feem ntau muab faib ua tsib hom: D, E, X95, G105, thiab S135. Cov qib no yog categorized raws li qhov tsawg kawg nkaus yield zog ntawm cov khoom steel - qib siab dua, lub zog ntau dua, ua rau lawv haum rau ntau txoj kev zoo los yog tob tob.
Qib D: Yam tsawg kawg nkaus tawm lub zog yog 379 MPa, haum rau qhov dej ntiav lossis lub teeb - chaw thau khoom.
Qib E: Yam tsawg kawg nkaus tawm lub zog yog 517 MPa, feem ntau siv rau nruab nrab - qhov tob tob.
Qib X95: Yam tsawg kawg nkaus tawm lub zog yog 655 MPa, muab qhov sib npaug ntawm lub zog thiab tawv.
Qib G105: Yam tsawg kawg nkaus tawm lub zog yog 724 MPa, dav siv hauv qhov dej tob thiab siab - qhov chaw siab.
Qib S135: Yam tsawg kawg nkaus lub zog tawm mus txog 931 MPa, sawv cev rau qib siab tshaj plaws tam sim no, haum rau ultra- qhov dej tob, qhov dej kab rov tav, thiab siab - kev nyuaj siab.
