Lub "Lub Plawv" ntawm Tricone Cov Menyuam Khoom: Peb Cov Kabmob Cov Kabmob uas txiav txim siab Drilling Efficiency

Ntawm cov roj thiab roj tshawb nrhiav thiab geological drilling qhov chaw, lubroller cone me ntsiszoo li ib tug "steel tsiaj nyaum" nkag mus rau hauv av, thiab cov bearings ua lub "lub siab" ntawm cov tsiaj nyaum no. Nws txhawb kev sib hloov ceev ceev ntawm cov menyuam lub khob hliav qab, tiv taus cov kev nyuaj hauv av thiab kev sib txhuam, thiab ncaj qha txiav txim siab txog kev pab cuam lub neej ntawm me ntsis thiab kev ua haujlwm ntawm kev ua haujlwm drilling. Niaj hnub no, peb yuav rhuav tshem peb qhov tseem ceeb ntawm cov kabmob ntawm cov menyuam lub khob hliav qab, tshawb xyuas cov kev paub tsis meej tom qab txhua tus thiab cov xwm txheej uas lawv ua tau zoo.

I. Sliding Sealed Roj Hmab Bearing: Tus Nqi-zoo tau yeej, Tus Pabcuam Muaj Peev Xwm Muaj Peev Xwm Zoo rau Cov Khoom Muag rau Nruab Nrab-Hard

Hauv cov xwm txheej zoo sib xws, cov zawv zawg kaw cov roj hmab cov kabmob yog lub caij nyoog "veteran" nrog rau kev siv siab. Nws cov qauv tsis nyuaj; cov tub ntxhais muaj cov zawv zawg kev sib txhuam khub uas tsim los ntawm cov ntawv xov xwm hlau alloy thiab hnav-resistant alloy bushing. Zoo li ob lub ntsiab-haum hlau, nws xa lub zog los ntawm kev sib txhuam zawv zawg. Txhawm rau tiv thaiv kev nkag mus ntawm cov dej drilling, ib qho kev sib koom ua ke ntawm roj hmab sealing—xws li radial foob rings thiab kawg gaskets—yog ntsia rau sab nraud ntawm cov kabmob kab noj hniav, thiab cov kab noj hniav yog ntim nrog cov roj viscosity siab los tsim "kev tiv thaiv thaiv."

Qhov zoo tshaj plaws ntawm cov kabmob no yog nyob rau hauv nws "kev ruaj ntseg" thiab "tus nqi-zoo." Kev sib txhuam tsim zawv zawg ua rau cov khoom thauj khoom sib txawv thiab muaj kev cuam tshuam zoo dua, tso cai rau nws ua haujlwm ruaj khov txawm tias nyob rau hauv siab drilling siab thiab siab hloov ceev. Tsis tas li ntawd, nws nta cov nqi tsim khoom qis thiab kev saib xyuas yooj yim—Tom qab hnav, tsuas yog lub bushing yuav tsum tau hloov los kho qhov me ntsis rau kev pabcuam. Txawm li cas los xij, cov roj hmab foob yog nws "tsis muaj zog": nws qhov kub tsis kam yog feem ntau tsis tshaj 120°C, thiab nws lub siab tsis kam txwv yog nyob ib ncig ntawm 50MPa, ua rau nws tsis muaj txiaj ntsig hauv cov dej kub hauv qhov tob tob lossis thaum raug cov kua dej corrosive.

Yog li ntawd, "qhov tseem ceeb ntawm kev sib ntaus sib tua" ntawm zawv zawg kaw cov roj hmab bearings yog nyob rau hauv cov mos mus rau nruab nrab-tawv formations, xws li av nplaum, sandstone, thiab limestone. Lawv yog tshwj xeeb tshaj yog haum rau onshore pa pa drilling,kev taw qhia drilling, thiab cov dej ntiav ntiav uas tswj cov nqi tseem ceeb heev. Yog tias koj qhov kev xav tau drilling ua raws li cov xwm txheej no, cov kabmob no yuav yog qhov kev xaiv zoo heev.

II. Rolling Sealed Roj Hmab Bearing: Cov Pioneer Ua Haujlwm Zoo, Lub Tuam Txhab Tseem Ceeb rau Nruab Nrab-Nyob rau Hard Formations

Thaum drilling hloov mus rau nruab nrab-nyuaj mus rau nyuaj formations, xws li granite thiab basalt, qhov ua tau zoo ntawm zawv zawg kaw cov roj hmab bearings ua tsis txaus.—thiab qhov ntawd yog thaum dov kaw cov roj hmab bearings coj theem nruab nrab. Nws txoj kev txhim kho tseem ceeb yog hloov cov tsoos zawv zawg txhuam txhuam nrog dov cov ntsiab lus (pob bearings lossis cov menyuam bearings). Ob lub dov cov ntsiab lus thiab cov nplhaib sab hauv / sab nrauv yog ua los ntawm cov khoom siv high-precision hnav-tiv taus, thaum tuav cov roj hmab foob thiab roj-raws li sealing thiab lubrication system.

Qhov kev hloov pauv tseem ceeb tshaj plaws los ntawm kev sib txhuam dov yog "txo kev siv zog": kev sib txhuam tsis zoo yog txo qis,cov bitpib torque me me, thiab nws tuaj yeem ua tau yooj yim dua kev sib hloov ceev. Lub tshuab drilling ceev feem ntau nce los ntawm 10% -30%, uas yog undoubtedly ib tug tseem ceeb kom zoo dua rau tej yaam num nrhiav high-efficiency drilling. Txawm li cas los xij, nws tseem tau txais cov kev txwv ntawm cov roj hmab foob—nws qhov kub siab tshaj plaws kuj yog me ntsis siab dua li cov zawv zawg bearings, tab sis tsuas yog nce mus txog 130°C, nrog lub siab tsis kam ntawm kwv yees li 60MPa. Tsis tas li ntawd, cov ntsiab lus dov yog rhiab heev rau impurities; Cov khoom siv hauv cov kua dej drilling tuaj yeem yooj yim ua rau jamming, yog li cov kev xav tau siab dua tau muab tso rau ntawm qhov huv ntawm cov dej drilling.

Raws li cov yam ntxwv no, dov sealed roj hmab bearings yog tsuas yog siv rau drilling nyob rau hauv nruab nrab-nyuaj mus rau hard formations, xws li ntsug seem ntawm qhov tob thiab ultra-ntev qhov dej, nrog rau high-efficiency drilling tej yaam num yuav tsum tau high mechanical drilling speeds. Nyob rau hauv cov nqe lus ntawm kev xaiv dej drilling, lawv tau sib xws nrog cov dej huv thiab cov khoom siv qis-theem drilling kua tshuab. Txhawm rau muab kev ua si tag nrho rau lawv cov txiaj ntsig zoo, kev siv cov dej drilling uas muaj cov khoom loj loj yuav tsum zam kom ntau li ntau tau.

III. Unsealed Rolling Air Bearing: Tus Kws Tshaj Lij Kub Kub Kub, Kev Xaiv Tshwj Xeeb rau Cov Txheej Txheem Drilling tshwj xeeb

Nyob rau hauv ultra-siab kub thiab ultra-siab siab sib sib zog nqus drilling scenarios, xws li geothermal qhov dej thiab shale roj sib sib zog nqus qhov dej, cov roj hmab ntsaws ruaj ruaj ntawm thawj ob hom kabmob yuav ua tsis tau vim qhov kub thiab txias. Nyob rau ntawm no, lub unsealed dov huab cua bearing dhau los ua qhov kev daws teeb meem nkaus xwb. Nws cov qauv tsim yog tshwj xeeb heev: nws txais yuav ib qho kev sib txhuam ntawm cov khoom sib txhuam tab sis tshem tawm tag nrho cov sealing los ua ke. Cov kabmob kab noj hniav yog txuas ncaj qha mus rau qhov nruab nrab ntawm qhov drilling, thiab cov cua kub siab lossis atomized drilling kua yog siv los ua qhov txias thiab lubricating nruab nrab.

Yog tias tsis muaj kev txwv ntawm cov ntsaws ruaj ruaj, nws qhov kub thiab txias tau ua tiav qhov kev ua tau zoo, nce mus txog 200°C, uas muaj peev xwm ua kom haum rau ultra-siab kub hauv av ib puag ncig. Nyob rau tib lub sijhawm, cov cua kub siab tsis tu ncua tshem tawm cov kabmob kab noj hniav, tsis yog tsuas yog tshem tawm cov cua sov uas tsim los ntawm kev sib txhuam, tab sis kuj tseem tshem tawm cov kev tawm tsam kom tsis txhob muaj kabmob hnav, txhim kho kev ntseeg tau zoo hauv qhov chaw hnyav. Txawm li cas los xij, nws kuj muaj qhov tshwj xeeb "xav tau": nws muaj qhov xav tau siab heev ntawm cov khoom siv cua, yuav tsum muaj qhov chaw ruaj khov siab-siab. Ntxiv mus, lub neej bearing yog cuam tshuam ncaj qha los ntawm kev huv huv ntawm huab cua—yog tias impurities sib xyaw rau hauv cov huab cua, nws tuaj yeem ua rau muaj kev puas tsuaj.

Hom kabmob no muaj cov kev siv tshwj xeeb, feem ntau yog siv hauv ultra-siab kub thiab ultra-siab siab tob tob drilling, nrog rau cov txheej txheem tshwj xeeb xws li underbalanced drilling thiab huab cua drilling. Nyob rau hauv cov txheej txheem no, cov cua kub siab tsis tsuas yog muab lubrication thiab txias rau cov kabmob, tab sis kuj tseem tiv thaiv kev sib tsoo zoo, ua tiav ob lub hom phiaj ib zaug. Nws yuav tsum tau muab sau tseg tias, txawm li cas los xij, nws yog qhov tsis sib xws nrog cov pa dej-raws li drilling kua tshuab thiab tsuas tuaj yeem ua haujlwm hauv cov pa roj lossis atomized drilling kua xov xwm.—qhov no yog nws cov kev txwv tseem ceeb.

Summary: Yuav Ua Li Cas Xaiv Ntawm Peb Cov Kabmob? Sib piv cov xwm txheej ua haujlwm yog qhov tseem ceeb

Tom qab kawm txog cov ntsiab lus ntawm peb cov kabmob no, nws yog qhov tseeb tias tsis muaj qhov zoo tshaj lossis qhov tsis zoo ntawm lawv.—tsuas yog qhov sib txawv ntawm qhov tsim nyog rau kev ua haujlwm tshwj xeeb. Hauv cov ntsiab lus yooj yooj yim, cov ntsiab lus tseem ceeb rau kev xaiv tuaj yeem sau tau hauv peb lub ntsiab lus:

Rau kev tsim cov khoom muag mus rau nruab nrab-nruab nrab thiab qhov dej ntiav ntiav uas qhov kev ua tau zoo yog qhov tseem ceeb, xaiv cov zawv zawg kaw cov roj hmab; rau nruab nrab-nyuaj mus rau nyuaj formations qhov siab drilling ceev thiab efficiency yuav tsum tau, xaiv cov rolling sealed roj hmab bearing; thiab rau ultra-siab kub, ultra-siab siab sib sib zog nqus qhov dej los yog cov txheej txheem tshwj xeeb xws li cua drilling, unsealed dov cua bearing yog tib txoj kev xaiv.

Raws li "lub plawv" ntawm cov menyuam lub khob hliav qab me ntsis, kev xaiv cov kabmob ncaj qha cuam tshuam rau tus nqi, kev ua haujlwm zoo, thiab kev nyab xeeb ntawm kev ua haujlwm drilling. Nws vam tias tsab xov xwm no yuav pab koj kom paub meej txog qhov sib txawv ntawm peb cov kabmob, ua rau koj xaiv txoj cai "lub siab" rau cov tswv yim drilling thiab xyuas kom zoo thiab txhim khu kev qha drilling txhua txhua lub sijhawm.