1. Pib
Kev DRILLING roj yog ib txoj kev lag luam ua haujlwm nyuaj uas xav tau siv ntau yam tshuaj kom ua tau zoo ntawm cov kua dej. DRILLING KUB TSIS yog siv tsuas yog ntub thiab txias thaum drilling, tab sis kuj pab nqa cuttings, tab sis kuj tiv thaiv kev tsaus muag, thiab tswj hwm kev nyab xeeb. Polyanionic cellulose (PAC) yog ib qho kev txuas ntxiv rau hauv cov kua dej drilling thiab ua lub luag haujlwm tseem ceeb hauv cov roj drilling nrog nws kev ua haujlwm zoo dua.
2. Tshuaj lom neeg ntawm polyanionic cellulose
Polyanionic cellulose (PAC) yog ib pawg ntawm cellulose nrog cov pawg anionic hauv nws cov qauv molecular. PAC tuaj yeem muab faib ua ob pawg: tsis viscosity qis (LV-PAC) thiab siab viscosity (hv-pac), raws li lawv viscosity kev ua haujlwm hauv aqueous kev daws teeb meem. Cov yam ntxwv anionic ntawm PAC kom nws los ua qhov ruaj khov nyob rau hauv cov kua aqueous, uas yog qhov tseem ceeb heev rau kev kho cov khoom sib dhos ntawm cov kua dej.
3. Lub luag haujlwm hauv cov kua dej drilling
3.1 Viscoscosity kev hloov kho
PAC tsuas yog kho cov viscosity ntawm drilling kua los ntawm thickening. High-viscosity PAC tuaj yeem ua kom cov viscosity ntawm cov kua dej, yog li txhim kho nws lub peev xwm nqa cuttings. Qhov no yog qhov tseem ceeb rau kev ua kom txoj kev huv si, tiv thaiv laum me ntsis kev thaiv, thiab txhim kho kev siv hluav taws xob. Tsawg-viscosity PAC yog siv hauv cov xwm txheej nyob qhov twg drilling kua dej viscosity yuav tsum muaj tsawg. Nws lub luag haujlwm yog muab cov nyhuv thickenate kom muaj kev sib npaug ntawm fellity thiab nqa muaj peev xwm.
3.2 Kev ua kom zoo ntawm rheological Khoom
Cov khoom siv tshuab hluav taws xob ntawm cov kua dej drilling, uas yog, nws cov neeg ntws thiab deformation yam ntxwv, yog qhov tseem ceeb cuam tshuam rau kev ruaj ntseg ntawm cov txheej txheem drilling. PAC tuaj yeem hloov kho tus cwj pwm shear-thinning ntawm cov kua dej drilling kom nws tswj hwm qis viscosity ntawm high shear tus nqi thiab ntau dua cov nqi viscosity nyob ntawm cov nqi qis. Cov cuab yeej rheatoral pab txo qis kev sib txhuam tsis tawm tsam cov neeg muaj peev xwm khiav ntawm cov kua dej uas muaj dej ntws tsawg.
3.3 Kev tswj cov dej tsis
PAC muaj cov peev txheej tswj tau zoo heev, uas tuaj yeem txo cov dej ntws hauv cov kua dej hauv qhov kev tsim kom muaj qhov chaw nyob ib puag ncig. Qhov no pab kom muaj kev ruaj ntseg ntawm qhov muaj npe thiab tiv thaiv kev ua haujlwm zoo los ntawm kev tsim cov dej poob. Los ntawm kev sib sau ua yeeb yaj kiab nyias, PAC ua tau zoo tswj cov kev lim dej thiab tiv thaiv kev ncaj ncees ntawm phab ntsa zoo.
4. Kev thov cov txiaj ntsig zoo
4.1 Txhim kho qhov khib nyiab
PAC lub thickening thiab rheological hloov kho kom haum kom muaj cov dej txiav kom zoo dua, yog li txo qhov kev pheej hmoo ntawm laum kev pheej hmoo thiab nce kev khiav ceev. Tsis tas li ntawd, kev siv PAC tseem txo kev sib txhuam thaum khiav tawm, tso cai rau lub laum me ntsis kom khiav ntau dua, ntxiv txhim kho kev drilling efficiency.
4.2 Muaj kev cuam tshuam ib puag ncig
PAC yog ib puag ncig zoo ntxiv nrog cov biodegradity zoo. Thaum lub sij hawm drilling, kev siv PAC tuaj yeem txo qhov cuam tshuam rau ib puag ncig, tshwj xeeb tshaj yog thaum muaj kev puas tsuaj nrog cov kua dej kom qeeb dua. Piv nrog rau lwm cov tshuaj sib ntxiv tshuaj ntxiv, PAC yog tsawg dua kev phom sij thiab pab kom ua tiav cov tshuab raj ntsuab.
4.3 them nyiaj-ua hauj lwm
Daim ntawv thov ntawm PAC hauv roj drilling tsis tsuas yog txhim kho kev ua haujlwm ua haujlwm, tab sis kuj txo cov kua dej thiab cov nqi ntawm kev npaj. Lub siab ua tau zoo thiab kev lag luam ntawm PAC ua rau nws yog ib qho ntxiv ntxiv ntxiv hauv cov kua dej ua kom zoo. Vim nws cov kev ua tau zoo heev, PAC tuaj yeem txo qhov xav tau rau lwm yam tshuaj muaj nqi nyob rau hauv cov txheej txheem drilling, yog li txo tag nrho cov nqi.
5. Cov rooj plaub loj thiab cov ntawv thov
5.1 Offshore drilling
PAC yog dav siv nyob rau hauv kev npaj cov kav dej hauv kev ua haujlwm ntawm ntug dej. Piv txwv li, hauv kev ua haujlwm drilling hauv hiav txwv roj av, kev siv cov pa roj av muaj peev xwm nqa cuttings, txo qis qis thaum lub sijhawm tho, thiab txhim kho kev ua kom haum. Tsis tas li ntawd, PAC qhov kev tswj hwm pom kev ua tau zoo tau zoo heev hauv cov tub rog cov tub rog nyuaj, tiv thaiv kev tiv thaiv zoo.
5.2 Kev kub siab thiab kub-drilling
Pac Cov Khoom Taw Qhia Zoo kom ruaj khov thiab ua haujlwm nyob rau hauv high-kub thiab siab-siab (HPHT) tej yam kev mob. Tom qab lub tuam txhab roj app siv rau hauv qhov chaw siab tshaj plaws thiab ua kom muaj kev pheej hmoo ntawm cov kua hluav taws xob, thiab txo cov kev pheej hmoo thiab cov nqi tshwm sim los ntawm cov kua dej tsis ua haujlwm.
6. Yav Tom Ntej Outlook
Nrog kev nce qib nruam ntawm roj drilling thev naus laus zis, qhov yuav tsum tau rau cov kua dej khiav dej kuj tau nce siab dua thiab siab dua. Yav tom ntej, Polyanionic cellulose yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv cov hauv qab no:
High efficiency thiab kev tiv thaiv ib puag ncig: ib puag ncig tiv thaiv cov yam ntxwv ntawm kev txhim kho cov khoom siv ntsuab thiab txhawb nqa txoj kev txhim kho ntawm kev siv tshuab kom ruaj khov.
Kev tshawb fawb ntau ntau ntxiv: Kev tshawb fawb yav tom ntej yuav hais txog kev txhim kho cov pa ntawm cov dej khov thaum muab cov haujlwm ntau ntxiv thiab cov ntsev tsis kam.
Kev tswj ntse ntse: los ntawm kev sib xyaw ntawm Nanotechnology thiab cov khoom siv ntse, txuas ntxiv kho cov kev ua tau zoo thiab tuaj yeem kho cov kev xav tau ntawm lub sijhawm thaum lub sijhawm khiav haujlwm.
Raws li kev ua kua ntau ntau thiab cov kua dej ua kom zoo nkauj ntxiv, polyanionic cellulose (PAC) ua lub luag haujlwm tseem ceeb hauv cov roj dr drilling txheej txheem. Los ntawm kev kho viscosity, ua kom zoo dua cov khoom siv hluav taws xob, pac zoo dua txhim kho kev ua haujlwm, txo cov txiaj ntsig ib puag ncig, thiab coj txiaj ntsig kev khwv nyiaj txiag. Nrog kev txhim kho kev kawm txuas ntxiv ntawm science thiab thev naus laus zis, yuav tsum muaj kev txhawb nqa, txhim kho kev txhim kho roj ntau dua.
Lub Sijhawm Post: Feb-17-2025