Hauv kev ua haujlwm drilling thiab poob kev tswj xyuas, ib qho tseem ceeb tsis tau pom dua qhov teeb meem hu ua "Sealing the Door" yog qhov tseem ceeb. Qhov tshwm sim no suav nrog cov ntaub ntawv ploj mus ua ib qho thaiv qhov muag ntawm qhov nkag ntawm cov pob txha los yog qhov chaw poob, tsis yog nkag mus tob dua los tsim kom muaj kev sib khi zoo. Analogous rau cov ntaub ntawv clogging nkag mus rau hauv ib chav tsev, nws muab ib tug cuav tswv yim ntawm sealing, raws li qhov chaw sab hauv tseem hollow.
Yam Tseem Ceeb
- Tsis tsim nyog Particle Loj Distribution:Cov khoom loj tuaj yeem txuas ntxov ntxov ntawm qhov tawg nkag, thaiv cov khoom me me uas yuav tsum tau ua kom tob tob.
- Ntau Particle Concentration:Qhov siab ntawm cov ntaub ntawv ua rau muaj qhov ntom ntom "filter ncuav mog qab zib" ntawm qhov nkag, tiv thaiv kev nkag mus tob.
- Kev txwv ntawm cov khoom siv niaj hnub:Cov khoom siv sib xyaw ua ke (granules, flakes, fibers) feem ntau tsis muaj deformability thiab nthuav cov khoom, ua rau lawv tsis tshua muaj txiaj ntsig ntawm kev nkag mus thiab ua rau cov pob txha tawg.
- Kev ua haujlwm tsis raug cai:Qhov no suav nrog cov twj tso kua mis ntau dhau, lub sijhawm tuav lub sijhawm tsis txaus, thiab qhov ua tsis raug ntawm qhov poob cheeb tsam (xws li, qhov dav tawg).
Main Hazards
- Tsim ib qho kev xav tsis tseeb ntawm kev sib khi ua tiav.
- Ua rau cov kua dej rov tshwm sim dua (rov- los ntshav) thaum rov rov ua dua vim muaj kev vibrations, kev hloov siab, lossis kev ncig.
- Ua kom cov nqi nce ntxiv thiab tsis yog - lub sijhawm ua tau zoo los ntawm kev rov kho dua.
- Kev ncua sij hawm thiab ua kom muaj kev tswj xyuas kom zoo, raws li kev poob dej txuas ntxiv ua rau txo qis hydrostatic siab, uas ua rau muaj kev cuam tshuam tsis zoo los yog tsim cov kua dej nkag.
Cov tswv yim tiv thaiv tseem ceeb
- Tsim Precise Particle Size Distribution:Tau qhov ntsuas qhov me me kom haum rau qhov tseeb tawg qhov dav rau "staged bridging thiab progressive filling."
- Optimize Material Composition:Siv cov txheej txheem sib xyaw ua ke sib xyaw ua ke (rau kev sib txuas), cov fibers hloov pauv (rau kev txhawb zog), thiab cov khoom tsis zoo (rau txhaws), muaj peev xwm txhim kho nrog cov neeg ua haujlwm nthuav dav lossis kho tau los txhim kho lub zog thiab tiv thaiv kev ntws rov qab.
- Tswj Kev Ua Haujlwm Parameter: Siv cov ntaub ntawv tsim nyog, siv lub tswv yim zoo txhaj tshuaj (pib nrog qis- kev sib xyaw, cov khoom me me), ua raws li kev ntsuas siab, thiab tsis txhob siv cov twj tso kua mis ntau dhau.
- Ua raws li Kev Kho Mob rau Hom Poob: Siv cov txheej txheem tshwj xeeb (xws li, poob ncig thaum lub sijhawm drilling, cov khoom siv tshwj xeeb txuas, siab -kua- poob kho tshuab, gel ntsaws, lossis cement) raws li hom kev poob (permeability, tawg, lossis vugular/cavernous).
Cov cim qhia ntawm "Sealing the Door" suav nrog lub twj tso kua mis nrawm nrawm thiab nrawm nrawm ua raws li kev ruaj ntseg, luv luv lossis txawv txav rov qab los ntawm cov kua dej, qhov rov tshwm sim tam sim ntawm qhov poob thaum drilling, thiab qis dua - dua - qhov kev xav tau ntawm kev ntsuas siab ncaj ncees.
Hauv cov ntsiab lus, "Sealing the Door" yog hom tsis ua haujlwm tseem ceeb hauv kev ua haujlwm poob. Nws cov hauv paus ua rau pw hauv cov khoom siv tsis zoo tsim thiab tswj kev ua haujlwm tsis zoo. Nws qhov kev cuam tshuam txuas ntxiv dhau ib qho kev sim ua tsis tiav, ua rau muaj kev pheej hmoo sib xyaw hauv lub sijhawm, nqi, thiab kev nyab xeeb zoo. Yog xav paub ntxiv, thov tsis txhob yig tiv tauj pab pawg Vigor kom paub meej ntxiv txog cov khoom lag luam.
