Cellulose yog cov organic ntau ntau yam muaj ntau yam ntawm cov kev siv thoob plaws ntau yam lag luam. Ib qho tseem ceeb siv ntawm cellulose yog nyob rau hauv drilling av nkos, uas ua ib lub luag haujlwm tseem ceeb hauv cov roj thiab roj drilling txheej txheem.
Taw qhia rau Drilling av:
Drilling av nkos, tseem hu ua cov kua dej, yog cov kev ua haujlwm tshwj xeeb, kom muaj kev sib tsoo lub laum, thiab lub laum cov ntawv txiav tawm mus rau saum npoo av, thiab cov ntawv sib dhos. Nws pab ntau yam kev ua haujlwm tseem ceeb rau kev ua tiav drilling ua haujlwm hauv ntau qhov kev mob geological.
Qhov tseem ceeb ntawm cellulose hauv cov av nkos:
Cellulose yog qhov tseem ceeb ntawm cov av nkos vim nws cov khoom tshwj xeeb, uas pab txhawb kev ua haujlwm thiab ua haujlwm zoo ntawm cov txheej txheem drilling. Cov haujlwm tseem ceeb ntawm cellulose hauv drilling av nkos muaj xws li:
Kev tswj hwm tswj hwm: cellulose ua raws li tus viscosifier hauv cov av nkos, nce nws viscosity thiab kev txhim kho nws lub peev xwm rau kev txiav txiav. Qhov no pab tau kev ncua thiab thauj cov ciav txiav rau saum npoo av, tiv thaiv lawv txoj kev sib luag thiab kev tsub zuj zus hauv qab ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nkaum ntawm qhov chaw nyob hauv qab.
Kev tswj cov kua: borulose-based additives pab tswj cov kua dej tsis muaj zog los ntawm kev sib sau cov roj nyias nyias ntawm phab ntsa. Qhov no txo qhov kev ntxig kua dej mus rau hauv cov kua dej mus rau hauv cov kab ntxeem, txo kev tsim kev tsim thiab tswj kev ruaj khov.
Lub qhov ntxuav tu: muaj cov cellulose hauv cov av nkos khiav kom tau nws lub peev xwm los ntxuav qhov chaw muaj mob los ntawm kev nqa cov ciav hlau kom zoo. Qhov no txwv tsis pub muaj kev sib txuam ntawm kev txiav, uas tuaj yeem cuam tshuam kev mus ncig ua hauj lwm thiab ua rau cov khoom tsis ua haujlwm.
Qhov ntsuas kub tau: cellulose additives muab kev ruaj khov string av, cia nws tswj hwm nws cov peev xwm thiab kev ua tau zoo nyob rau hauv cov kev ua haujlwm hnyav ntsib kev ua haujlwm sib sib zog nqus. Qhov no yuav pab tiv thaiv kom tsis txhob viscosity poob thiab ua kom cov kua dej tsis sib haum.
Ib puag ncig compatibility: bellulose-based additives yog ib puag ncig phooj ywg thiab biodegradable, ua rau lawv haum rau kev siv thaj chaw ib puag ncig. Lawv pab txo qhov kev cuam tshuam ib puag ncig ntawm kev ua haujlwm drooring los ntawm kev txo cov tshuaj lom neeg ua kom muaj kuab lom.
Cov khoom ntawm cellulose:
Cellulose yog polysaccharide polymer muaj cov chav dej qab zib txuas nrog ua ke los ntawm β (1 → 4) glycosidic bonds. Nws cov khoom ua rau nws zoo-haum rau kev siv hauv cov av nkos drilling:
Hydrophilic Xwm: cellulose yog hydrophilic, lub ntsiab lus nws muaj kev muaj zog muaj zog rau dej. Cov cuab yeej no tso cai rau cellulose kom zoo nqus thiab khaws dej, ua rau cov kua dej-tsis tswj kev ua haujlwm ntawm cov av nkos.
Polymer qauv: cov qauv polymer ntawm cov khoom siv sib xyaw ua ke, ua rau muaj cov khoom siv lim thiab cov lim dej tsis zoo.
Thermal Stability: Cellulose cov khoom ua kom zoo zoo thermal ruaj khov, cia nws los tiv thaiv kom muaj kev kub ntxhov tsis muaj kev cuam tshuam tseem ceeb. Cov cuab yeej no ua kom muaj kev ua tau zoo ib yam ntawm cellulose-raws li cov av nkos hauv cov xwm txheej hnyav.
Biodegradity: Ib qho ntawm cov ntsiab lus tseem ceeb ntawm cellulose yog nws biodegradability. Tom qab siv, cellulose-based drilling mud additives tawg rau hauv kev tsis muaj kev phom sij, txo cov txheej txheem ib puag ncig thiab kev sim pov tseg cov txheej txheem pov tseg.
Cov tshuaj txhuam cellulose siv hauv cov av nkos drilling:
Ntau hom cellulose-based additives yog siv nyob rau hauv drilling av mudulent, txhua qhov kev pab tshwj xeeb thiab cov khoom:
Hydroxyethyl cellulose (HEC): HEC yog dej-soluble polymer muab tau los ntawm cellulose los ntawm kev hloov kho tshuaj lom neeg. Nws yog feem ntau siv raws li cov viscosifier thiab kua-flu tswj tus neeg sawv cev hauv dej-raws li drilling dej.
Carboxymethyl cellulose (CMC): CMC yog lub cellulose hloov kho nrog cov pab pawg carublility thiab ua kua dej ua kua thiab kua dej kom huv. Nws yog dav hauv cov av nkos ua qauv rau cov kev tswj cov tsis muaj dej thiab viscosity li.
Microcrosealline cellulose (MCC): MCC muaj me me, crystalline hais ntawm cellulose tsim los ntawm cov txheej txheem tshuab lossis enzymatic. Nws yog siv rau hauv cov av nkos drilling ua ib tus neeg sawv cev pom kev, pab tswj kom muaj kev ruaj ntseg zoo nkauj los ntawm kev sib sau lub lim lim.
Sodium Carboxymethyl cellulose (na-CMC): Na-CMC yog dej-solub yog siv cov dej lim rau nws cov kua dej tsis zoo thiab cov khoom siv roj. Nws pab saib kom zoo nkauj viscosity thiab tiv thaiv kom tsis txhob ua kua rau hauv cov qauv ntxig.
Polyanionic cellulose (PAC): PAC yog lub cellulose derivative nrog qib siab ntawm kev tswj cov kua dej zoo heev rau cov av nkos. Nws yog qhov tshwj xeeb hauv kev kub-ntsuas kub thiab cov dej siab-salinity drilling ib puag ncig.
Daim ntawv thov ntawm cellulose hauv drilling av nkos formulations:
Cellulose-based additives feem ntau tau koom ua ke rau hauv cov av nkos khib nyiab ntawm cov khoom siv uas xav tau thiab cov tshuaj tswj kom pom. Kev xaiv ntawm cov cellulose tsim nyog muaj ntxiv nyob ntawm qhov xwm txheej xws li cov hom ntawm cov kua dej, cov xwm txheej drilling, thiab kev xav tau tshwj xeeb.
Hauv cov dej-ua kua dej, cov cellulose txuas ntxiv feem ntau yog dispited rau cov khoom siv agitation kom ntseeg tau tias muaj kev faib tawm cov kev faib tawm kom ntseeg tau. Qhov concentration ntawm cellulose ntxiv yog ua tib zoo tswj kom tau txais viscosity, kev tu kom huv si ntawm lub zog thaum tswj cov kua tshuaj tau zoo thiab ruaj khov.
Nyob rau hauv cov roj-raws li drilling tshuab, cellulose-based ntxiv yuav siv tau ua ke nrog lwm cov qauv tswj cov roj thiab cov kua dej ua kom zoo. Qhov sib xyaw ntawm cellulose nrog lwm cov dej ua kua yog qhov tseem ceeb kom ntseeg tau tias muaj kev coj ua nyab xeeb thiab kev ua tau zoo.
Kev txiav txim siab ib puag ncig:
Cellulose-based additives muab ntau ib puag ncig zoo piv rau hluavtaws polymers thiab cov tshuaj cais feem ntau siv hauv cov av nkos. Lawv cov txiaj ntsig biodegradability thiab tsawg ib puag ncig kev lom zem ua rau lawv muaj kev xaiv zoo nkauj rau cov kev khiav haujlwm tsis sib xws yog ib puag ncig txoj cai.
Los ntawm kev siv cellulose-based ntxiv rau hauv cov av nkos cov qauv, txo qhov kev pheej hmoo ntawm kev nqus dej thiab ua kom muaj peev xwm txo qis kev cuam tshuam rau cov tsiaj txhu areanticystems.
Xaus:
Cellulose ua lub luag haujlwm tseem ceeb hauv kev tsim cov qauv ntawm cov av nkos, ua rau nws muaj viscosity, kev tswj cov dej tsis muaj zog, thiab ib puag ncig sib xyaw. Raws li lub ntuj thiab rov ua dua tshiab polymer, cellulose muaj ntau qhov zoo tshaj cov khoom sib ntxiv hluavtaws, suav nrog biodegradity, thiab kev ua tau zoo heev hauv ntau yam kev siv drilling.
Cov ntau haiv ntawm cellulose muaj tso cai rau cov av uas muaj cov av nkos ua kom zoo rau cov qauv kev ua kom zoo nkauj, cov hom phiaj drilling, thiab ib puag ncig kev txiav txim siab. Los ntawm kev siv tus kheej ntawm cov khoom ntawm cellulose, tuaj yeem txhim kho kev ua kom haum, thiab ua kom muaj kev nyab xeeb thiab muaj roj siv.
Lub Sijhawm Post: Feb-18-2025