Taw qhia
Cov kav dej laum yog cov khoom tseem ceeb hauv Down- lub -Qhov (DTH) drilling cuab yeej tshuab, ua cov kav dej rau compressed cua thiab ua kom yooj yim rau kev nkag mus rau pob zeb. Nyob rau hauv DTH pob zeb drilling, lub laum yeeb nkab txuas cov drilling rig mus rau DTH rauj thiab DTH ntsis, kom ntseeg tau tias lub zog xa mus thiab ruaj khov thoob plaws hauv kev ua haujlwm. Kab lus no tshawb txog kev ua haujlwm ntawm cov kav dej, lawv hom kev sib txuas (xws li API, DIBH, thiab BECO threads), lawv qhov sib txawv ntawm qhov ntev (los ntawm 1 meter mus rau 11 meters), thiab lawv qhov loj me (los ntawm 60 hli mus rau 610 hli), thaum tseem hais txog lawv qhov sib xws nrog DTH hammers thiab laum rods.
Hauv DTH drilling system, cov yeeb nkab laum ua haujlwm tseem ceeb hauv cov txheej txheem, xa cov quab yuam sib hloov thiab cuam tshuam lub zog los ntawm qhov drilling rig mus rau DTH rauj. Lub DTH rauj, nyob rau hauv lem, tsav lub DTH ntsis mus rau hauv lub pob zeb tsim, pulverizing lub pob zeb los ntawm siab - cuam tshuam quab yuam. Lub laum yeeb nkab yuav tsum tiv taus kev ntxhov siab ntau heev- suav nrog kev thauj khoom torsional thiab kev vibrations-thaum tuav lub kaw lus cua kom ntseeg tau tias kev ua haujlwm zoo ntawm kev sib tsoo tshuab.
Cov Cheebtsam tseem ceeb txuas nrog lub Drill Pipe
1. DTH Rauj - Txuas mus rau hauv qab kawg ntawm cov yeeb nkab laum, cov khoom no ua rau muaj kev cuam tshuam ntau zaus rau pob zeb tawg.
2. DTH Bit - Txuas nrog rau DTH rauj, me ntsis txiav thiab pulverizes pob zeb tsim.
3. Drill Rod - Feem ntau siv sib hloov nrog "drill yeeb nkab," txawm hais tias laum rods feem ntau luv luv thiab siv nyob rau hauv ntau txoj kev drilling.
4. Drilling Rig - Lub tshuab uas muab lub zog sib hloov thiab pub thrust rau txoj hlua tho.
Drill Pipe Specifications: Size, Length, thiab Thread Type
Qhov Loj (60mm txog 610mm)
Drilling kav muaj nyob rau hauv ntau yam diameters kom haum rau ntau hom kev siv drilling:
Cov kav me me -Diameter (60 mm - 150 mm): Siv rau qhov tob drilling, tshawb nrhiav cov pob zeb hauv av, thiab cov dej hauv qhov dej.
Nruab nrab-Cov kav dej (150 mm - 300 mm): Feem ntau pom nyob rau hauv cov chaw txua txiag zeb thiab kev tsim kho.
Loj -Cov kav dej (300 mm - 610 mm): Ua haujlwm rau qhov sib sib zog nqus- qhov drilling, kev tshawb nrhiav roj thiab roj, thiab loj- ua haujlwm mining. Length Variations (1 meter txog 11 meters)
Laum pas nrig ntev yog xaiv raws li qhov tob drilling thiab drilling rig specifications:
Qis Qis (1m–3m): Siv rau qhov chaw kaw lossis ntiav -qhov tob tob.
Standard Rods (3m–6m): Feem ntau rau nruab nrab -drilling daim ntaub ntawv.
Ntev Qws (6m–11m): Zoo tagnrho rau qhov sib sib zog nqus- qhov drilling, raws li lawv txo qhov zaus ntawm cov pas nrig sib txuas.
Xov Connections (API, DIBH, BECO) - Xov hom
Xyuas kom muaj kev ruaj ntseg kev sib txuas ntawm cov laum pas nrig thiab DTH rauj:
1. API Threads - Standardized los ntawm American Petroleum Institute, cov xov no tau dav siv nyob rau hauv oilfield thiab hnyav- lub luag hauj lwm drilling.
2. DIBH (Drop-Hauv Pob-Lub Taub Hau) Xov - Tshwj xeeb tsim los rau siab - cuam tshuam DTH drilling, muab cov khoom xa tawm zoo dua.
3. BECO Threads - Cov xov muaj zog siv nyob rau hauv European thiab thoob ntiaj teb drilling daim ntawv thov, nto moo rau lawv cov kav ntev.
Matching Drill Rods nrog DTH Hammers
Xaiv qhov tsim nyog laum pas nrig rau DTH rauj yuav tsum xav txog cov hauv qab no:
Thread Compatibility - Lub laum pas nrig hom yuav tsum sib npaug ntawm DTH rauj (API, DIBH, lossis BECO).
Siab thiab Load Capacity - Tus pas nrig yuav tsum muaj peev xwm tiv taus huab cua siab thiab lub zog cuam tshuam los ntawm rauj.
Hnav Resistance - Siab- zoo steel kev tsim ua kom lub neej ntev kev pab cuam, tshwj xeeb tshaj yog thaum drilling nyob rau hauv abrasive pob zeb tej yam kev mob.