1. Taw qhia rau hydroxyethyl cellulose
Hydroxyethyl cellulose (HEC) yog cov dej tsis-ionic-soluble cellulose ether tau los ntawm kev hloov kho tshuaj lom neeg ntawm cov cellulose tshuaj lom neeg. HEC tau dav siv rau hauv cov tsho tiv no, tsim kho, tshuaj noj txhua hnub, tshuaj thiab lwm cov liaj teb nrog nws cov tshuaj pleev xim zoo nkauj, ua yeeb yaj kiab thiab cov khoom siv noo noo.
2. Cov yam ntxwv thiab cov yam ntxwv
Dej solubility: hydroxyethylcellulose nyob rau hauv ob qho tib si txias thiab dej kub, sib zog ua kom pom tseeb lossis me ntsis turbid colloidal tov.
Thickening: nws tuaj yeem ua kom cov viscosity ntawm cov kua aqueous thiab muaj cov khoom siv hluav taws xob zoo.
Stability: Zoo tshuaj ruaj khov ruaj khov, tsawg rhiab rau cov acids, hauv paus thiab ntsev.
Zaj duab xis sib sau: ua kom muaj qhov tseeb, kev ua yeeb yaj kiab tawv tom qab ziab.
Moisturizing zog: tuaj yeem khaws cov dej noo thiab tiv thaiv kev ua kom ya raws.
Biocompatibility: tsis muaj voos rau tib neeg daim tawv nqaij, zoo biodegradability.
3. Cov chaw thov tseem ceeb
3.1. Xim Kev Lag Luam
Thickener: siv los ua cov tuab hauv cov dej sib xyaw ua ke los muab cov khoom siv ua haujlwm tsim nyog thiab tiv thaiv cov xim xim.
Stabilizer: Tiv thaiv cov xim delamination thiab nag lossis daus los ntawm kev kho cov yam ntxwv ntawm cov xim.
3.2. Tsev cov ntaub ntawv
Caj yeeb tshuaj tsw qab: nce viscosity thiab sag tsis kam nyob rau hauv xis mas cultiv los txhim kho kev tsim kho thiab kev sib raug zoo.
Gypsum khoom: Siv hauv Gypsum slurries los muab cov kev cia dej zoo thiab ua haujlwm.
3.3. Cov Tshuaj Txhua Hnub
Xab npum: Siv ua cov tuab thiab muaj stabilizer nyob hauv zawv plaub hau, ntsej muag ntxuav thiab lwm yam khoom lag luam los txhim kho cov khoom siv thiab kev siv cov kev siv.
Cov tshuaj pleev ib ce: siv hauv cov tshuaj pleev ib ce, cov roj thiab lwm yam khoom los muab cov qauv ruaj khov thiab kev siv du.
3.4. Kws Tshuaj
Kws npaj tshuaj npaj: siv raws li cov khoom siv binders thiab kev tsim tawm-tso tawm rau cov ntsiav tshuaj kom txhim kho cov tshuaj ruaj khov thiab tswj tso tawm.
Cov khoom lag luam ophhalic: siv rau hauv cov tee qhov muag kom muab viscosity thiab lub cev.
3.5. Kev lag luam roj tsheb
Drilling kua: siv ua cov tuab tuab hauv cov kua dej kom zoo dua los txhim kho cov khoom siv hluav taws xob thiab nqa cov khoom siv drilling.
Fracturing kua dej: siv nyob rau hauv fracturing kua kom muab viscosity thiab ncua kev ncua los txhim kho cov txiaj ntsig kev ua haujlwm.
4. Yuav siv li cas
4.1. Cov txheej txheem
Kev tshem tawm nruab nrab: Hydroxyethyl cellulose yog soluble hauv dej txias lossis dej kub. Feem ntau yaj maj hauv dej txias tab sis muaj txiaj ntsig.
Cov kauj ruam ntxiv: maj mam ntxiv Hec rau lub dej ntws kom tsis txhob muaj kev cuam tshuam los ntawm kev ntxiv ntau dhau ib zaug. Ua ntej sib xyaw HEC nrog cov dej me me kom ua cov tshuaj txhuam, tom qab ntawd maj mam ntxiv cov dej seem.
Stirring tej yam mob: siv qis-nrawm nplawm kom tsis txhob muaj cov npuas tshwm sim los ntawm kev siv tawv. Lub sijhawm sib xyaw ua ke yog nyob ntawm cov kev xav tau tshwj xeeb, feem ntau 30 feeb rau 1 teev.
4.2. Kev npaj kev siab
Daim ntawv thov txheej txheej: Feem ntau siv ntawm kev ua kom haum ntawm 0.2% rau 1.0%.
Cov ntaub ntawv hauv tsev: hloov kho rau 0.2% mus rau 0.5% raws li xav tau.
Tshuaj txhua hnub: menpration Khwv yog 0.5% rau 2.0%.
Kev lag luam Oilfield: Feem ntau tau 0.5% rau 1.5%.
4.3. Cov kev ceev faj
Kev daws qhov kub: Qhov zoo tshaj plaws yog los tswj qhov kub ntawm 20-40 ℃ thaum lub sij hawm sib yaj. Qhov kub thiab txias heev yuav ua rau muaj kev cuam tshuam.
PH TSEG: Qhov siv tau ntev yog 4-12. Ua tib zoo saib kom ruaj khov thaum siv nws hauv cov kua qaub muaj zog lossis alkali.
Cov tshuaj tiv thaiv kev tshuaj tiv thaiv hec, kev daws teeb meem hec khaws cia ntev ntev yuav tsum tau ntxiv nrog cov tshuaj tiv thaiv microbial.
4.4. Cov zaub mov txawv li cas
Txheej Txheej: 80% dej, 0.5% hydroxyethyl cellulose, 5% xim, qee qhov ntxiv, 15% muab tub lim.
Ceg Cug Cov Lus Cev: 65% Dej, 20% CEMENT, 10% xuab zeb, 10% xuab zeb, 0.3% Hydroxyethyl cellulose, 4.7% lwm yam kev sib ntxiv.
5. Cov ntaub ntawv thov cov tswv yim
5.1. Dej-raws li Txheej Txheem:
Cov kauj ruam: sib xyaw dej thiab HEC nyob rau hauv qis-ceev stirring. Tom qab HEC yog rhuav tshem, ntxiv cov xim, ntxiv thiab muab cov fillers.
Muaj nuj nqi: Nce cov xim sib txawv thiab txhim kho fluonity thiab kev tiv thaiv thaum lub sijhawm kev tsim kho.
5.2. Caas cug:
Cov kauj ruam: Rho tawm HEC hauv dej siv los npaj cov tshuaj khib. Tom qab tag nrho cov lus, ntxiv cement thiab xuab zeb thiab sib tov tusyees.
Muaj nuj nqi: Txhim kho cov dej khaws cia thiab cov nplaum ntawm cug tshuaj khib thiab txhim kho kev tsim kho.
5.3. Tshuaj zawv plaub hau:
Cov kauj ruam: Ntxiv Hec rau cov dej hauv lub cev, do ntawm qis ceev kom txog thaum paub tag, tom qab ntawd ntxiv lwm cov khoom xyaw nquag thiab tsw qab.
Muaj nuj nqi: Ua kom cov viscosity ntawm zawv plaub hau thiab muab txoj kev xav zoo ntawm kev siv.
5.4. Qhov muag poob:
Cov kauj ruam: Raws li cov xwm txheej tsis huv, yaj HEC hauv cov dej tsim thiab ntxiv cov khoom xyaw tsim nyog thiab lwm yam khoom xyaw.
Muaj nuj nqi: Muab cov viscosity tsim nyog, txuas lub sijhawm nyob hauv lub sijhawm ntawm cov tshuaj hauv lub qhov muag, thiab nce kev nplij siab.
6. Kev Nyab Xeeb Kev Nyab Xeeb thiab ib puag ncig
Biodegradable: HEC yog ib txwm ua rau ib puag ncig thiab ib puag ncig phooj ywg.
Kev Nyab Xeeb: Tsis muaj voos rau tib neeg cov tawv nqaij, tab sis tsis txhob nqus plua plav thiab sib cuag nrog lub qhov muag.
Hydroxyethylcellose yog cov muaj txiaj ntsig zoo hauv kev lag luam thiab lub neej txhua hnub vim nws cov versatility thiab ntau cov kev siv. Thaum siv, nws yog ib qho tsim nyog los paub txoj kev ua kom raug thiab ua feem los muab kev ua si tag nrho rau nws kev ua haujlwm zoo dua. Nkag siab txog nws cov yam ntxwv thiab cov kev ceev faj tuaj yeem txhim kho qhov zoo thiab ua tau zoo ntawm cov khoom lag luam thiab xyuas kom muaj kev tiv thaiv kev nyab xeeb thiab ib puag ncig ntawm kev ua haujlwm.
Lub Sijhawm Post: Feb-17-2025