CMC (sodium carboxymethyl cellulose) Yog ib qho tseem ceeb dej-soluble polymer compolound uas ua ntau yam tseem ceeb hauv kev sib sib zog nqus-hiav txwv drilling, tshwj xeeb tshaj yog nyob rau hauv kev npaj thiab kev ua tau zoo ntawm drilling kua. Kev sib sib zog nqus-hiav txwv yog ib txoj haujlwm nrog cov kev yuav tsum tau ua haujlwm thiab cov mob hnyav. Nrog rau kev txhim kho cov roj offshore thiab roj peev txheej thiab qhov tob ntawm qhov tob-npau npau yog maj mam nce ntxiv. Raws li cov tshuaj lom neeg ntxiv ntxiv, CMC tuaj yeem txhim kho kev txuag, kev tiv thaiv kev nyab xeeb thiab ib puag ncig ntawm cov txheej txheem drilling.
1. TSEEM CEEB LOJ HEEV RAU HAUV DRILLING
Thaum lub sij hawm nqus dej tob, drilling kua ib qho tseem ceeb xws li txhawb cov laum zoo, txias lub chips, thiab tswj cov chips, thiab tswj cov chips kom qis. CMC yog ib qho viscosity radulator, rheatorian tus neeg sawv cev thiab cov tuab tuab, uas tau siv dav hauv kev npaj cov kua dej. Nws lub zog tseem ceeb tau cuam tshuam hauv cov hauv qab no:
1.1 thickening thiab kho viscosity
Hauv kev sib sib zog nqus-hiav txwv drilling, vim qhov nce nyob rau hauv dej tob thiab siab, cov dej strilling yuav tsum muaj qee yam dej viscosity los xyuas kom nws lub fluconity thiab nqa muaj peev xwm. CMC muaj peev xwm ua tau zoo siv cov kua dej lim dej thiab pab kom muaj kev ruaj khov ntawm cov kua dej sib txawv ntawm qhov tob tob thiab ntsuas. Los kho cov kev pom zoo ntawm CMC, lub viscosity ntawm cov kua dej tau ua kom haum rau cov dej uas haum rau ib puag ncig thiab tiv thaiv kom muaj teeb meem xws li kev sib tsoo.
1.2 txhim kho rheological cov yam ntxwv
Rheological cov yam ntxwv ntawm cov kua dej drilling yog qhov tseem ceeb hauv kev sib sib zog nqus hiav txwv kom huv. CMC tuaj yeem txhim kho cov kua dej ntawm cov kua dej drilling, txo cov kev sib txhuam ntawm cov kav dej thiab kev siv zog thaum lub neej ntawm cov khoom siv drilling. Ib qho ntxiv, cov khoom siv hluav taws xob zoo tuaj yeem ua kom pom tias cov kua dej tau zoo siv tau cov khoom txiav, yog li zam cov teeb meem xws li txhaws.
2. Hangorore ruaj khov thiab inhibition ntawm hydrate tsim
Nyob rau hauv cov txheej txheem ntawm tob-hiav txwv drilling, zoo kawg nkaus ruaj khov yog qhov teeb meem tseem ceeb. Cov chaw nyob tob-hiav txwv feem ntau ntsib lub ntsej muag nyuaj, xws li kub siab, thiab cov khoom tso tawm kom muaj zog, uas tuaj yeem ua rau cov dej kom zoo. CMC pab txhim kho kev ruaj ntseg ntawm phab ntsa zoo thiab tiv thaiv kev ua haujlwm zoo los ntawm kev txhim kho cov viscosity thiab rheological cov khoom ntawm cov dej drilling.
Hauv kev sib sib zog nqus-hiav txwv drilling, qhov tsim ntawm hydrates (xws li cov roj nkev roj) tseem yog qhov teeb meem uas tsis tuaj yeem tsis quav ntsej. Nyob rau hauv qis dua qhov kub thiab txias thiab cov pa roj siab, cov pa roj siab tau yooj yim tsim thaum lub sijhawm draving thiab ua rau txhaws cov kua dej. Raws li cov neeg sawv cev hydration muaj txiaj ntsig, cmc tuaj yeem ua tau zoo tiv thaiv kev tsim cov hydrates, thiab ua kom cov kev ua tau zoo ntawm cov haujlwm khiav dej.
3. Txo kev cuam tshuam ib puag ncig
Nrog rau kev tiv thaiv kev tiv thaiv ib puag ncig ib puag ncig ib puag ncig, qhov cuam tshuam rau ib puag ncig thaum ib puag ncig drilling tau txais ntau dua thiab ntau dua xim. Daim ntawv thov ntawm CMC hauv kev sib sib zog nqus dej yuav ua kom muaj kev cuam tshuam zoo txo cov tshuaj muaj teeb meem ntawm cov kua dej. Raws li cov khoom siv ntuj, CMC muaj qhov zoo biodegradability thiab ib puag ncig ua phooj ywg. Nws siv tuaj yeem txo cov tshuaj lom ntawm cov kua dej thiab txo cov pa phem rau cov tub rog ecosystem.
Tsis tas li ntawd, CMC tseem tuaj yeem txhim kho cov nqi ua haujlwm ntawm cov kua dej. Los ntawm kev kho kom haum rau cov kev ua tau zoo ntawm cov kua dej, thiab ua kom cov kua dej tsis zoo, thiab ua kom lub nra hnyav dua, thiab ua kom lub nra ntawm cov tub rog lub nkoj thaum lub sijhawm khiav haujlwm yog txo. Qhov no yog qhov tseem ceeb tshaj plaws rau kev loj hlob ntawm kev loj hlob ntawm tob-hiav txwv drilling.
4. Txhim kho kev ua kom haum thiab kev nyab xeeb
Kev siv CMC tsis tsuas yog txhim kho kev ua tau zoo ntawm cov kua dej sib sib zog nqus dej, tab sis kuj tseem txhim kho kev ua kom puas thiab ua haujlwm kom muaj qee yam. Ua ntej, CMC tuaj yeem ua kom cov kua dej zoo hloov rau cov yeeb nkab uas sib txawv, txo thaum lub sijhawm khiav tawm, thiab paub meej txog kev ua haujlwm du ntawm kev ua haujlwm drooring. Qhov thib ob, cov tshuab khiav tau ruaj khov tuaj yeem txhim kho qhov tseeb drilling thiab zam kom tsis txhob xyaum ua tsis tiav los ntawm phab ntsa zoo lossis lwm yam. Tsis tas li ntawd, CMC muaj peev xwm txo qhov kev pheej hmoo ntawm downhole siab hloov pauv, txo cov xwm txheej thiab av nkos uas yuav tshwm sim thaum muaj kev nyab xeeb.
5. Nqi-ua hauj lwm thiab kev lag luam
Txawm hais tias daim ntawv thov ntawmCmcYuav ua kom muaj qee yam nqi, cov nqi no tau muab piv rau kev txhim kho hauv kev ua haujlwm thiab kev nyab xeeb nws coj. CMC tuaj yeem txhim kho qhov ruaj khov ntawm cov kua dej thiab txo qhov xav tau kev xav tau lwm yam tshuaj sib txawv, yog li txo tag nrho cov nqi ntawm cov kua dej sib dhos. Nyob rau tib lub sijhawm, kev siv CMC tuaj yeem txo cov nqi khoom ploj thiab kev txij nkawm, txhim kho kev ua haujlwm hnyav ntawm kev ua haujlwm hnyav, thiab yog li nqa cov txiaj ntsig kev lag luam ntau dua.
Raws li cov tshuaj lom tau zoo ntxiv, CMC ua si lub luag haujlwm tseem ceeb hauv kev sib sib zog nqus hiav txwv drilling. Nws tsis tuaj yeem txhim kho kev ua tau zoo ntawm cov kua dej thiab txhim kho kom muaj kuab paug, txo cov pa phem ib puag ncig, thiab txhim kho kev ua haujlwm thiab kev nyab xeeb. Nrog kev txhim kho kev txuas ntxiv ntawm kev tiv thaiv tshuab hiav txwv, kev siv ntawm CMC yuav dhau los ua ib qho ntawm cov ntaub ntawv tseem ceeb hauv kev sib sib zog nqus.
Lub Sijhawm Post: Dec-21-2024