Polyanionic cellulose (PAC) yog cov dej-soluble cellulose derivative uas yog dav siv nyob rau hauv cov roj thiab roj kev lag luam, tshwj xeeb tshaj yog nyob rau hauv fracturing kua formulations. Hydraulic fracturing, feem ntau hu ua fracking, yog cov txheej txheem stimulation siv los ua kom cov roj thiab cov nkev roj los ntawm cov dej hauv av. PACs ua si ntau lub luag haujlwm tseem ceeb hauv kev tsim thiab ua tiav ntawm kev ua haujlwm hydraulic fracturing, pab txhawb kev ua tau zoo, ruaj khov thiab tag nrho kev ua tiav ntawm cov txheej txheem.
1. Taw qhia rau polyanionic cellulose (PAC):
Polyanionic cellulose yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Kev tsim cov PAC suav nrog kev hloov kho tshuaj ntawm cellulose, ua rau muaj dej-soluble anionic polymer. Nws cov khoom tshwj xeeb ua rau nws tsim nyog rau ntau yam kev siv, suav nrog ua cov khoom tseem ceeb hauv kev tsim cov kua dej tawg.
2. Lub luag haujlwm ntawm PAC hauv cov kua dej tawg:
Ntxiv PAC rau cov kua dej tawg tuaj yeem hloov kho nws cov khoom rheological, tswj cov dej tsis zoo, thiab txhim kho cov kua dej tag nrho. Nws cov khoom siv ntau yam ua rau muaj kev vam meej ntawm hydraulic fracturing ntau txoj hauv kev.
2.1 Rheological hloov kho:
PAC ua raws li kev hloov kho rheology, cuam tshuam rau viscosity thiab ntws cov yam ntxwv ntawm cov kua dej tawg. Kev tswj cov viscosity yog qhov tseem ceeb rau kev pom cov khoom xa tuaj, kom ntseeg tau tias cov khoom siv tau zoo thiab muab tso rau hauv cov pob zeb tawg tsim hauv pob zeb tsim.
2.2 Kev tswj dej tsis zoo:
Ib qho ntawm cov kev sib tw ntawm hydraulic fracturing yog tiv thaiv cov kua ntau dhau los ntawm kev poob rau hauv kev tsim. PAC tuaj yeem tswj tau dej tsis zoo thiab tsim lub ncuav mog qab zib tiv thaiv ntawm qhov tawg. Qhov no pab tswj kev puas siab puas ntsws kev ncaj ncees, tiv thaiv proppant embedding thiab ua kom muaj txiaj ntsig zoo ntxiv.
2.3 Kub stability:
PAC yog qhov kub thiab txias, qhov tseem ceeb hauv kev ua haujlwm hydraulic fracturing, uas feem ntau yuav tsum tau raug rau ntau yam kub. Lub peev xwm ntawm PAC los tuav nws txoj haujlwm nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias ua rau muaj kev ntseeg siab thiab ua tiav ntawm cov txheej txheem fracturing.
3. Kev ceev faj rau cov qauv:
Kev ua tiav ntawm PAC hauv cov kua dej fracturing yuav tsum tau ua tib zoo xav txog cov txheej txheem tsim. Qhov no suav nrog kev xaiv ntawm PAC qib, qhov siab, thiab kev sib raug zoo nrog lwm cov khoom ntxiv. Kev sib cuam tshuam ntawm PAC thiab lwm yam khoom siv hauv cov kua fracturing, xws li cov kab sib txuas thiab cov khoom tawg, yuav tsum tau ua kom zoo rau kev ua haujlwm zoo.
4. Kev saib xyuas ib puag ncig thiab kev tswj hwm:
Raws li kev paub txog ib puag ncig thiab hydraulic fracturing cov cai txuas ntxiv mus, kev siv PACs hauv cov kua dej tawg tau zoo ib yam nrog kev siv zog hauv kev lag luam los tsim cov qauv tsim kom zoo ib puag ncig. PAC yog dej-soluble thiab biodegradable, txo qhov cuam tshuam ib puag ncig thiab daws teeb meem cuam tshuam nrog cov tshuaj ntxiv hauv hydraulic fracturing.
5. Cov ntaub ntawv tshawb fawb thiab daim ntawv thov teb:
Ntau cov ntaub ntawv tshawb fawb thiab daim ntawv thov teb qhia tau zoo siv PAC hauv hydraulic fracturing. Cov piv txwv no qhia txog kev txhim kho kev ua tau zoo, kev ua tau zoo thiab cov txiaj ntsig ib puag ncig ntawm kev sib koom ua ke PAC rau hauv cov kua dej tsim tawm.
6. Cov kev sib tw thiab kev txhim kho yav tom ntej:
Thaum PAC tau ua pov thawj tias yog ib qho tseem ceeb ntawm cov kua dej tawg, cov kev cov nyom tseem muaj xws li cov teeb meem kev sib raug zoo nrog qee cov dej tsim thiab xav tau kev tshawb fawb ntxiv rau lawv cov kev cuam tshuam ib puag ncig mus ntev. Cov kev txhim kho yav tom ntej yuav tsom mus rau kev daws cov teeb meem no, nrog rau kev tshawb nrhiav cov qauv tshiab thiab cov thev naus laus zis los ua kom muaj txiaj ntsig thiab kev ruaj khov ntawm kev ua haujlwm hydraulic fracturing.
7. Xaus:
Polyanionic cellulose (PAC) plays lub luag haujlwm tseem ceeb hauv kev tsim cov kua fracturing rau hydraulic fracturing ua haujlwm hauv kev lag luam roj thiab roj. Nws cov khoom tshwj xeeb pab txhawb rau kev tswj hwm rheology, kev tiv thaiv dej tsis zoo thiab qhov kub thiab txias, thaum kawg txhim kho kev ua tiav ntawm cov txheej txheem fracturing. Raws li kev lag luam txuas ntxiv mus ntxiv, daim ntawv thov ntawm PAC yog ua raws li cov kev xav tau ntawm ib puag ncig thiab cov kev cai tswj hwm, ua rau nws yog ib qho tseem ceeb hauv kev txhim kho cov kev coj ua hydraulic fracturing. Kev tshawb nrhiav thiab kev txhim kho txuas ntxiv tuaj yeem ua rau muaj kev nce qib ntxiv hauv PAC-raws li kev tsim cov kua dej tawg, daws cov teeb meem thiab kev ua kom zoo dua qub raws li qhov sib txawv ntawm geological thiab kev ua haujlwm.
Post lub sij hawm: Dec-06-2023