Nruab nrab rop ntawm DTH cua rauj
Taw qhia:
Raws li lub tuam txhab ua pob zeb drilling cuab yeej, peb nkag siab qhov tseem ceeb ntawm Rate of Penetration (ROP) hauv DTH (Down-The-Hole) drilling operations. ROP yog hais txog qhov ceev ntawm DTH cua rauj tuaj yeem nkag mus rau pob zeb tsim thaum lub sijhawm drilling. Nws yog ib qho tseem ceeb ntawm kev ntsuas kev ua tau zoo uas cuam tshuam rau kev ua haujlwm drilling, kev tsim khoom, thiab tag nrho cov sijhawm ua haujlwm.
Muaj nuj nqi:
ROP ntawm DTH cua rauj yog ib qho tseem ceeb qhia txog nws qhov kev ua tau zoo drilling. Nws txiav txim siab sai npaum li cas rauj tuaj yeem ua tiav los ntawm pob zeb, ua kom muaj txiaj ntsig zoo thiab ua tiav raws sijhawm ntawm cov phiaj xwm drilling. Los ntawm kev ua tiav ROP siab dua, kev ua haujlwm drilling tuaj yeem ua tiav nrawm dua, txo cov nqi thiab nce kev tsim khoom.
Nov yog qee qhov kev nkag mus (ROP) uas tuaj yeem ua tiav los ntawm kev ncaj qha mus rau lub taub hau (DTH) huab cua / hydraulic hammers hauv ntau hom pob zeb:
Pob zeb mos (shale, av nplaum, xoob gravel): 15-30 ft/hr
Lub pob zeb nyuaj (sandstone, limestone): 10-20 ft/hr
Pob zeb nyuaj (quartzite, granite): 5-15 ft/hr
Pob zeb nyuaj heev (basalt, diorite): 2-8 ft/hr
Txawm li cas los xij, muaj ntau yam uas tuaj yeem cuam tshuam qhov tseeb ROP:
Pob zeb hom / lub zog - Cov pob zeb mos tho nrawm dua li pob zeb tawv.
Cov qauv me me / qhov xwm txheej - Cov hlau zoo, zoo-ntxhiab cov khoom laum sai dua.
Rauj qauv / lub zog - Loj dua, muaj zog dua rauj tho nrawm dua.
borehole txoj kab uas hla - qhov me me laum sai dua qhov loj dua.
Drilling kua / siab - Zoo tu pab sai ROP.
Laum txoj hlua tig - Rotary drilling pab cuam tshuam drilling.
Kev paub txog Driller - Cov neeg ua haujlwm txawj xaiv xaiv qhov tsis zoo.
Raws li cov lus qhia dav dav rau nruab nrab qhov dej zoo drilling:
4-6 inch qhov hauv limestone/sandstone: 15-30 ft/hr
4-6 nti qhov hauv granite/basalt: 5-15 ft/hr
Kev saib xyuas kom zoo, xyaum tsis ua haujlwm thiab siv tag nrho lub peev xwm ntawm DTH rauj yog qhov tseem ceeb rau kev ua kom muaj txiaj ntsig zoo tshaj plaws hauv cov kab no. Optimal ROP yog daim ntawv thov tshwj xeeb.
Qhov Rate of Penetration (ROP) tuav qhov tseem ceeb rau DTH (Down-The-Hole) rauj hauv kev lag luam pob zeb drilling. Nov yog ob peb lub laj thawj tseem ceeb vim li cas ROP tseem ceeb heev rau DTH hammers:
Drilling Efficiency: ROP ncaj qha cuam tshuam rau kev ua haujlwm drilling los ntawm kev txiav txim siab qhov ceev ntawm DTH rauj tuaj yeem nkag mus rau hauv pob zeb tsim. ROP siab dua txhais tau hais tias kev txhim kho drilling sai dua, txo lub sijhawm tag nrho yuav tsum ua kom tiav qhov project drilling. Kev txhim kho kev ua tau zoo ua rau kev txuag nqi, kev siv cov peev txheej zoo, thiab txhim kho qhov kev tsim khoom.
Productivity thiab Project Timelines: Ua tiav ROP siab dua tso cai rau cov kws tshaj lij drilling ua tiav cov haujlwm nrawm dua. Lub sijhawm yog qhov tseem ceeb hauv ntau qhov haujlwm drilling, tshwj xeeb tshaj yog cov sijhawm teem sijhawm nruj. Los ntawm kev nce ROP, kev ua haujlwm drilling tuaj yeem ua tiav ntawm qhov kev pom zoo, ua kom cov sijhawm ua haujlwm tau ua tiav, thiab txo qis qis. Txhim kho productivity txhim kho qhov project profitability thiab neeg txaus siab.
Kev Txhim Kho Tus Nqi: Siab dua ROP qhov tseem ceeb ua rau muaj txiaj ntsig zoo hauv kev ua haujlwm drilling. Los ntawm kev ua tiav cov haujlwm drilling sai dua, cov nuj nqis cuam tshuam nrog kev ua haujlwm, kev siv cov cuab yeej siv, thiab cov nyiaj siv ua haujlwm yuav raug txo kom tsawg. Txo lub sij hawm drilling txhais tau tias txuag nqi thiab nce nyiaj tau los rau cov neeg ua haujlwm drilling.
Khoom Siv Lub Sij Hawm Ntev: ROP tseem cuam tshuam rau lub neej ntev ntawm cov khoom siv drilling, suav nrog DTH hammers. Cov txiaj ntsig ROP siab dua feem ntau ua rau txo qis hnav thiab tsim kua muag ntawm rauj thiab cov khoom sib txuas. Los ntawm kev ua tiav cov haujlwm drilling kom zoo, cov cuab yeej siv tau ntev tuaj yeem txuas ntxiv, txo cov nqi kho thiab txhim kho tag nrho cov nyiaj rov qab los ntawm kev nqis peev (ROI) rau cov neeg cog lus drilling.
