Taw qhia
Nyob rau hauv lub ntiaj teb no ntawm mining thiab drilling, muaj ntau cov ntsiab lus uas tau muab pov ib ncig thiab tej zaum yuav tsis meej pem. Ob ntawm cov ntsiab lus no uas feem ntau siv sib hloov yog laum hlua thiab laum pas nrig. Thaum lawv zoo sib xws hauv lawv txoj kev siv thiab lub hom phiaj, muaj qee qhov sib txawv tseem ceeb ntawm ob. Hauv kab lus no, peb yuav tshawb txog qhov sib txawv no hauv qhov tob.
Drill Rod yog dab tsi?
Lub laum pas nrig yog ib qho cylindrical ntawm cov hlau uas siv rau hauv kev ua haujlwm drilling. Nws feem ntau yog ua los ntawm cov hlau los yog lwm cov hlau nplaum uas muaj zog, thiab tuaj yeem nyob ntev ntawm ob peb taw mus rau ntau pua taw. Laum pas nrig yog siv los hloov lub zog thiab lub zog los ntawm lub tshuab laum mus rau lub laum me ntsis, uas yog siv los txiav cov pob zeb, av, lossis lwm yam khoom siv tawv.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm lub laum pas nrig yog nws qhov kawg threaded, uas tso cai rau nws txuas mus rau lwm ntu ntawm txoj hlua laum. Laum rods tuaj nyob rau hauv ntau yam diameters thiab ntev, thiab muaj nyob rau hauv ob qho tib si tus qauv thiab kev cai ntau thiab tsawg kom tau raws li cov kev xav tau tshwj xeeb ntawm txhua qhov project drilling.
Dab tsi yog Drill String?
Ib txoj hlua laum, ntawm qhov tod tes, yog ib qho kev sib txuas ntawm cov laum rods uas tsim cov pob txha ntawm kev ua haujlwm drilling. Hauv lwm lo lus, ib txoj hlua laum yog tsim los ntawm ntau lub laum pas nrig uas txuas nrog qhov kawg-rau-kawg los tsim ib txoj hauv kev txuas mus ntxiv los ntawm lub tshuab laum mus rau qhov laum me ntsis.
Lub hom phiaj ntawm txoj hlua laum yog muab lub platform ruaj khov thiab nruj rau lub laum me ntsis, uas yog qhov tseem ceeb rau kev ua haujlwm zoo. Lub laum txoj hlua kuj tseem ua haujlwm rau cov kua dej xws li cov av nkos drilling, uas yog siv los lubricate lub laum me ntsis thiab tshem tawm cov txiav tawm ntawm qhov borehole.
Kev sib txuas ntawm Drill Rod thiab Drill String
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov laum rods thiab laum cov hlua tsis yog sib koom ua ke. Qhov tseeb, laum rods yog ib feem tseem ceeb ntawm txoj hlua xyaum, vim lawv yog cov ntu ntawm tus kheej uas ua rau tag nrho loj dua.
Thaum lub laum txoj hlua sib sau ua ke, txhua tus laum pas nrig yog threaded ntawm txhua qhov kawg kom tso cai rau kev sib txuas yooj yim rau lwm cov pas nrig hauv txoj hlua. Cov xov no tseem tso cai rau kev tshem tawm sai thiab yooj yim thiab hloov ntawm ib qho kev sib tsoo, yog tias nws puas los yog hnav.
Qhov sib txawv ntawm Drill Rod thiab Drill String
Thaum lub laum rods thiab laum cov hlua muaj kev sib raug zoo, muaj qee qhov sib txawv tseem ceeb ntawm ob. Cov no suav nrog:
- Length: Laum rods feem ntau luv dua li cov hlua tho, thiab feem ntau siv rau hauv cov ntawv thov drilling ntiav. Laum cov hlua, ntawm qhov tod tes, tuaj yeem ua tau ntau pua taw ntev thiab siv rau hauv cov haujlwm sib sib zog nqus.
- Rigidity: Laum cov hlua yog nruj dua li tus neeg laum rods, raws li lawv yog tsim los tiv thaiv dabtsi yog khoov thiab buckling nyob rau hauv lub luj ntawm lub laum ntsis. Laum rods, ntawm qhov tod tes, yog qhov hloov tau yooj yim dua thiab feem ntau siv rau hauv cov ntawv thov qhov yooj yim yog qhov tseem ceeb, xws li drilling hauv qhov chaw nruj lossis ib puag ncig cov teeb meem.
- Txoj kab uas hla: Cov hlua laum feem ntau yog qhov loj dua li cov hlua tho, vim tias lawv yuav tsum muaj peev xwm ua kom haum rau cov tho qhov loj dua thiab muab qhov chaw rau qhov ntws ntawm cov dej drilling.
- Xov Hom: Txawm hais tias ob qho tib si laum pas nrig thiab cov hlua laum muaj cov xov xaus, cov xov hom tuaj yeem sib txawv nyob ntawm daim ntawv thov tshwj xeeb. Laum cov hlua feem ntau siv cov xov tsim muaj zog dua, xws li API lossis IF xov, thaum lub laum pas nrig yuav siv cov xov yooj yim xws li ACME lossis square threads.
Xaus
Thaum cov hlua tho thiab cov hlua tho feem ntau siv sib hloov, muaj qee qhov sib txawv tseem ceeb ntawm ob. Laum rods yog ib tug neeg cylindrical daim hlau uas yog siv nyob rau hauv drilling kev ua hauj lwm, thaum laum hlua yog ib tug series ntawm interconnected laum rods uas tsim lub caj qaum ntawm lub drilling lag luam. Kev nkag siab txog qhov sib txawv no tuaj yeem pab ua kom ntseeg tau tias cov cuab yeej raug xaiv rau txhua qhov project drilling, thiab ua tiav qhov haujlwm zoo thiab ua haujlwm zoo.