Daim ntawv thov ntawm sodium carboxymethyl cellulose hauv cov dej drilling

Sodium carboxymethyl cellulose (CMC-Na luv luv) yog ib qho tseem ceeb ntawm cov dej-soluble polymer compound thiab yog dav siv nyob rau hauv cov roj drilling kua. Nws cov khoom tshwj xeeb ua rau nws yog ib qho tseem ceeb ntawm cov dej hauv qhov dej drilling.

1. Cov khoom tseem ceeb ntawm sodium carboxymethyl cellulose

Sodium carboxymethyl cellulose yog anionic cellulose ether tsim los ntawm cellulose tom qab kho alkali thiab chloroacetic acid. Nws cov qauv molecular muaj ntau pawg carboxymethyl, uas ua rau nws muaj dej solubility zoo thiab ruaj khov. CMC-Na tuaj yeem tsim cov tshuaj viscosity siab hauv dej, nrog thickening, stabilization thiab zaj duab xis-tsim zog.

2. Daim ntawv thov ntawm sodium carboxymethyl cellulose hauv cov dej drilling

Thickener

CMC-Na yog siv los ua cov thickener hauv cov kua dej drilling. Nws lub luag haujlwm tseem ceeb yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhaws. Qhov tsim nyog viscosity ntawm cov kua dej drilling tuaj yeem tiv thaiv kom zoo ntawm phab ntsa ntub dej thiab tswj qhov ruaj khov ntawm lub qhov dej.

Kua dej poob reducer

Thaum lub sij hawm cov txheej txheem drilling, cov kua dej drilling yuav nkag mus rau hauv lub qhov hws ntawm qhov tsim, ua rau cov dej poob hauv cov dej drilling, uas tsis yog tsuas yog khib nyiab drilling kua, tab sis kuj tseem tuaj yeem ua rau cov phab ntsa ntub dej thiab cov dej puas. Raws li cov kua txo, cmc-na tuaj yeem tsim lub lim dej qab zib ntawm phab ntsa uas tsis muaj dej thiab tiv thaiv kev tsim thiab phab ntsa zoo.

Lubricant

Thaum lub sij hawm drilling txheej txheem, kev sib txhuam ntawm lub laum me ntsis thiab cov phab ntsa zoo yuav ua kom muaj cua sov ntau, uas ua rau muaj zog ntawm cov cuab yeej laum. Lubricity ntawm CMC-Na pab txo kev sib txhuam, txo qhov hnav ntawm cov cuab yeej laum, thiab txhim kho kev ua haujlwm zoo drilling.

Stabilizer

Drilling kua yuav flocculate los yog degrade nyob rau hauv qhov kub thiab txias siab, yog li poob nws muaj nuj nqi. CMC-Na muaj qhov zoo thermal stability thiab ntsev tsis kam, thiab muaj peev xwm tswj tau qhov ruaj khov ntawm cov dej drilling nyob rau hauv cov xwm txheej hnyav thiab txuas ntxiv nws lub neej kev pab cuam.

3. Mechanism ntawm kev txiav txim ntawm sodium carboxymethyl cellulose

Kev kho viscosity

Cov qauv molecular ntawm CMC-Na muaj ntau pawg carboxymethyl, uas tuaj yeem tsim cov hydrogen bonds hauv dej kom nce viscosity ntawm cov tshuaj. Los ntawm kev kho qhov hnyav molecular thiab hloov qib ntawm CMC-Na, viscosity ntawm cov kua dej drilling tuaj yeem tswj tau kom tau raws li qhov xav tau ntawm qhov sib txawv drilling.

Lim tswj

CMC-NA lwg me me tuaj yeem tsim cov qauv sib txawv hauv cov dej, uas tuaj yeem tsim cov lim dej zoo thiab txo cov kev lim dej. Kev tsim ntawm lub ncuav mog qab zib lim tsis yog nyob ntawm qhov concentration ntawm CMC-Na, tab sis kuj nyob ntawm nws qhov hnyav molecular thiab hloov qib.

Lubrication

CMC-Na molecules tuaj yeem adsorbed rau ntawm qhov chaw ntawm lub laum me ntsis thiab cov phab ntsa zoo hauv dej los tsim cov zaj duab xis lubricating thiab txo cov kev sib txhuam coefficient. Tsis tas li ntawd, CMC-Na kuj tseem tuaj yeem txo qhov kev sib txhuam ntawm cov laum me ntsis thiab cov phab ntsa zoo los ntawm kev kho cov viscosity ntawm cov dej drilling.

Thermal stability

CMC-Na tuaj yeem tswj xyuas qhov ruaj khov ntawm nws cov qauv molecular nyob rau hauv qhov kub thiab txias thiab tsis ua rau thermal degradation. Qhov no yog vim cov carboxyl pawg hauv nws cov molecules tuaj yeem tsim cov hydrogen ruaj khov nrog cov dej molecules los tiv thaiv qhov kub thiab txias. Tsis tas li ntawd, CMC-Na kuj muaj cov ntsev zoo thiab tuaj yeem tswj tau nws cov kev ua tau zoo hauv cov ntsev ntsev. 

4. Daim ntawv thov piv txwv ntawm Sodium Carboxymethyl Cellulose

Nyob rau hauv qhov tseeb drilling txheej txheem, daim ntawv thov cov nyhuv ntawm sodium carboxymethyl cellulose yog zoo kawg li. Piv txwv li, nyob rau hauv ib qho kev sib sib zog nqus dej qhov project, ib tug drilling kua system uas muaj CMC-Na tau siv los tswj kev ruaj ntseg thiab pom qhov poob ntawm lub qhov dej, ua rau kom qhov drilling ceev, thiab txo tus nqi drilling. Tsis tas li ntawd, CMC-Na kuj tau siv dav hauv marine drilling, thiab nws cov ntsev zoo ua rau nws ua tau zoo nyob rau hauv marine ib puag ncig.

Daim ntawv thov ntawm sodium carboxymethyl cellulose hauv cov dej drilling feem ntau suav nrog plaub yam: thickening, txo cov dej poob, lubrication thiab stabilization. Nws lub cev tshwj xeeb thiab tshuaj lom neeg ua rau nws yog ib qho tseem ceeb ntawm cov dej hauv qhov dej drilling. Nrog rau kev txhim kho txuas ntxiv ntawm kev siv tshuab drilling, daim ntawv thov kev cia siab ntawm sodium carboxymethyl cellulose yuav dav dua. Hauv kev tshawb fawb yav tom ntej, cov qauv molecular thiab kev hloov kho ntawm CMC-Na tuaj yeem ua kom zoo dua los txhim kho nws cov kev ua tau zoo thiab ua tau raws li cov kev xav tau ntawm ntau qhov chaw drilling.