Hydroxyethyl cellulose siv hauv cov roj thiab roj kev lag luam

Hydroxyethyl cellulose (HEC) yog ib qho ntau yam dav siv hauv ntau qhov kev lag luam, suav nrog cov roj thiab roj sector. Hec Pab cov hom phiaj ntau lub hom phiaj, xws li cov kua viscosity tswj, pom kev tswj hwm, thiab kev tswj hwm zoo thiab muaj kev ruaj khov. Nws cov khoom sib txawv txawv ua rau nws muaj qhov tseem ceeb ntxiv hauv cov kua dej drilling, ua kom tiav kua, thiab cement slurrories. Ib qho ntxiv, HC cov khoom pov thawj sib xyaw nrog lwm cov kev sib ntxiv thiab ib puag ncig kev sib txuam, pab txhawb nws qhov kev xa nyiaj hauv kev ua haujlwm oilfield.

Hydroxyethyl cellulose (HEC) yog tsis-ionic, dej-soluble polymer muab tau los ntawm cellulose, lub ntuj polymer pom hauv cov nroj tsuag. Nws tau txais kev saib xyuas tseem ceeb thoob plaws ntau yam kev lag luam vim nws cov khoom muaj ntau yam, suav nrog cov tuab tuab, dej ua kom huv, txhim kho kom ruaj khov. Hauv cov roj thiab roj kev lag luam, hec Ua haujlwm ntau lub zog nyob rau ntau theem ntawm kev tshawb nrhiav, kom zoo, thiab cov txheej txheem kev tsim khoom zoo.

Cov khoom ntawm hydroxyethyl cellulose
HC cov khoom ua pov thawj ntau lub zog uas ua rau nws haum rau cov ntaub ntawv thov roj:

a. Dej solubility: HEC yog yooj yim soluble hauv dej, tso cai yooj yim incorporation rau aqueous dej.

b. Rheological tswj: Nws muab kev tswj xyuas cov kua viscosity thiab rhuaology, kev ntseeg siab rau kev tswj hwm cov kua dej drilling.

c. Thermal Stability: HEC khaws nws cov viscosity thiab kev ua tau zoo txawm tias ntawm kev nce siab kub.

d. Kev sib raug zoo: nws ua rau pom ntau yam nrog ntau yam ntxiv uas siv hauv cov tshuaj ntsuab hauv cov khoom siv, xws li salts, acids, thiab lwm cov polymers.

e. Kev siv hluav taws xob ib puag ncig: HEC yog biodegradable thiab ib puag ncig phooj ywg, sib koom nrog kev lag luam nce siab.

Cov ntawv thov ntawm hydroxyethyl cellulose hauv cov roj thiab roj kev lag luam

a. Drilling kua: Hec ua haujlwm ua qhov tseem ceeb hauv cov kua dej tsis huv los tswj viscosity, tso tawm cov khib nyiab, thiab muab cov kev tswj kom pom tseeb. Nws lub peev xwm los ua cov qauv gel ruaj khov pab tiv thaiv kom tsis txhob muaj dej ntws thiab txhim kho kev ua haujlwm zoo thaum lub sijhawm ua haujlwm drilling. Ntxiv mus, hec-raws li drilling cov kua dej ua kom pom zoo SHATE inhibition ntau zog, txo qhov kev pheej hmoo ntawm kev phom sij kom ruaj khov thiab tsim kev puas tsuaj.

b. Ua kom tiav cov kua dej: Ua tiav kev ua haujlwm zoo, HEC tau siv hauv kev ua tiav cov kua dej kom tswj cov kua viscosity, thiab tiv thaiv kom tiv thaiv cov kua dej poob rau hauv kev tsim. Los ntawm kev tswj cov kua dej rheology, HEC ua kom tiav cov kua dej ua tiav thiab txhim kho cov khoom lag luam ua tiav thaum ua tiav thiab ua haujlwm.

c. Maas Slurries: Hec Ua raws li kev tswj hwm rheology thiab kua roj tsis muaj kev tswj hwm hauv Maas Slurries. Los ntawm optimizing MAAs slurry viscosity thiab kev tiv thaiv kom tsis txhob muaj dej, thiab txo qhov kev pheej hmoo ntawm cov roj kev tsiv teb tsaws chaw thiab cov nkauj av.

d. Hydraulic fracturing kua: txawm hais tias tsawg dua piv rau lwm cov polymers zoo li guar fluids, HEC tuaj yeem siv rau hauv cov hniav roj ntsha ua kua roj av li viscosity concififier thiab kev txhuam tus reducer. Nws cov kev coj ua hluav taws xob thiab shear-thinning tus cwj pwm ua rau nws haum rau kev kub siab thiab siab-shear mob ntsib thaum lub sij hawm hydraulic fracturing operations.

Qhov zoo ntawm kev siv hydroxyethyl cellulose

a. Heuralic rheological rheological rheological rheological rheological tswj ntau dua li kev ntseeg rheology, ua kom cov kua rau cov kua dej ua tiav raws li cov dej xis thiab cov cai.

b. Kev sib xyaw nrog cov quav ntxiv: nws qhov sib xyaw nrog ntau yam ntawm cov khoom ntxiv uas tau tso cai rau cov kev sib tw hauv cov kev sib tw ntawm kev ua haujlwm.

c. Kev ua phooj ywg ib puag ncig: HEC lub biodegradability thiab ib puag ncig compatibility dog ​​encatibility, ua rau cov kev xaiv zoo tshaj plaws rau ib puag ncig cov neeg ua haujlwm.

d. Txhim Kho Wellbore Ruaj Ruaj: Lub peev xwm ntawm HEC los ua cov qauv gel ruaj khov, thiab qhov kawg kev tsim kho kom zoo, txhim kho kev ncaj ncees thiab khoom lag luam.

e. Txo kev tsim cov kev puas tsuaj: hec-based kua tshwm sim zoo nkauj shale Inverties, txo qis kev pheej hmoo ntawm kev tsim kev puas tsuaj thiab txhim kho kev ruaj ntseg hauv shale.

Hydroxyethyl cellulose (HEC) ua lub luag haujlwm tseem ceeb hauv cov roj thiab roj kev lag luam, ua tiav, cementing ua haujlwm. Nws cov khoom ntiag tug, suav nrog kev tswj cov ntsej muag, sib xws, thiab kev xaiv ib puag ncig, thiab ib puag ncig kev xaiv kom tau raws li qhov xav tau ntawm kev ua haujlwm Oilfield. Raws li kev lag luam txuas ntxiv hloov zuj zus, HEC tau cia siab yuav tsum khaws cov khoom tseem ceeb hauv kev txhim kho kev ua tau zoo, kev ua tau zoo, thiab kev siv roj thiab roj av.