Hauv cov kua dej drilling, PAC yog hais txog polyanionic cellulose, uas yog ib qho tseem ceeb muaj nyob rau hauv drilling av nkos formulations.Drilling av, tseem hu ua drilling kua, plays lub luag haujlwm tseem ceeb hauv cov txheej txheem drilling ntawm cov roj thiab cov qhov dej.Nws ua haujlwm rau ntau lub hom phiaj, xws li cua txias thiab lubricating laum khoom, thauj cov txiav mus rau saum npoo, muab kev ruaj ntseg zoo, thiab tswj kev tsim siab.
Polyanionic cellulose yog cov dej-soluble polymer muab tau los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag.PAC tau ntxiv rau cov dej drilling los txhim kho lawv cov rheology thiab pom kev tswj cov khoom.
1. Cov qauv tshuaj thiab cov khoom ntawm polyanionic cellulose (PAC):
PAC yog hloov kho cellulose polymer nrog anionic nqi.
Nws cov qauv tshuaj ua rau nws yooj yim soluble hauv dej, tsim cov tshuaj ruaj khov.
Qhov xwm txheej anionic ntawm PAC pab txhawb rau nws lub peev xwm los cuam tshuam nrog lwm cov khoom hauv cov kua dej drilling.
2. Txhim kho rheological zog:
PAC yog siv los hloov kho rheological zog ntawm drilling kua.
Nws cuam tshuam rau viscosity, gel lub zog thiab tswj tsis tau dej.
Tswj rheology yog ib qho tseem ceeb rau optimizing cuttings thauj thiab tswj kev ruaj ntseg zoo.
3. Lim tswj:
Ib qho ntawm cov haujlwm tseem ceeb ntawm PAC yog los tswj cov dej poob thaum lub sijhawm ua haujlwm drilling.
Nws tsim ib daim nyias nyias, impermeable lim ncuav mog qab zib rau ntawm phab ntsa zoo, tiv thaiv qhov poob ntawm drilling kua rau hauv qhov tsim.
Qhov no pab tswj cov khoom xav tau ntawm cov av nkos drilling thiab tiv thaiv kev tsim kev puas tsuaj.
4. Wellbore stability:
PAC pab txhawb kom muaj kev ruaj ntseg zoo los ntawm kev tiv thaiv cov kua dej ntau dhau los ntawm kev nkag mus rau hauv kev tsim.
Nws pab txo qis qhov sib txawv daig thiab lwm yam teeb meem cuam tshuam nrog kev tsis sib haum xeeb zoo.
Wellbore stability yog qhov tseem ceeb rau kev ua tiav ntawm kev ua haujlwm drilling.
5. Hom PAC thiab lawv daim ntawv thov:
Cov qib sib txawv ntawm PAC muaj nyob ntawm qhov hnyav molecular thiab qib kev hloov pauv.
High viscosity PACs feem ntau yog siv qhov siab tshaj plaws rheology tswj.
Rau cov ntawv thov uas tswj tsis tau dej yog qhov kev txhawj xeeb tseem ceeb, qhov qis viscosity PAC yuav nyiam dua.
6. Kev xav txog ib puag ncig:
PAC feem ntau suav hais tias yog ib puag ncig zoo vim tias nws yog biodegradable.
Qhov kev ntsuam xyuas ib puag ncig tau ua los xyuas kom meej tias lub luag haujlwm siv thiab pov tseg cov dej drilling uas muaj PAC.
7. Kev tswj xyuas zoo thiab kev sim:
Kev tswj xyuas nruj nruj yog siv los xyuas kom meej qhov ua tau zoo ntawm PAC hauv cov dej drilling.
Ntau yam kev ntsuam xyuas, suav nrog kev ntsuas rheological thiab kev ntsuas dej tsis zoo, tau ua los ntsuas kev ua haujlwm ntawm PAC-muaj cov av nkos drilling.
8. Kev sib tw thiab kev tsim kho tshiab:
Txawm hais tias nws siv dav, cov kev sib tw xws li thermal stability thiab kev sib raug zoo nrog lwm cov khoom siv ntxiv tuaj yeem tshwm sim.
Kev tshawb fawb txuas ntxiv thiab kev tsim kho tshiab tau mob siab rau los daws cov teeb meem no thiab txhim kho tag nrho cov kev ua tau zoo ntawm PAC hauv cov dej drilling.
Polyanionic cellulose (PAC) yog ib qho tseem ceeb nyob rau hauv drilling kua formulations thiab pab txhawb rau rheology tswj, pom kev tswj thiab wellbore stability.Nws cov khoom tshwj xeeb ua rau nws yog ib qho tseem ceeb ntxiv hauv kev lag luam roj thiab roj drilling, ua lub luag haujlwm tseem ceeb hauv kev ua tiav thiab kev ua haujlwm ntawm kev ua haujlwm drilling.
Post lub sij hawm: Jan-22-2024