Polyanionic cellulose LV HV

I-Polyanionic cellulose (PAC) i-polymer encibilika emanzini etholakala ku-cellulose. Isetshenziswa kabanzi embonini kawoyela negesi njengesengezo se-drilling fluid, lapho isetshenziselwa ukulawula ukulahlekelwa uketshezi, ukwandisa i-viscosity, kanye nokwenza ngcono ukuvinjelwa kwe-shale. I-PAC itholakala emabangeni ahlukene, ngamazinga ahlukene okushintshanisa kanye nesisindo samangqamuzana. Amabanga amabili ajwayelekile e-PAC i-viscosity ephansi (LV) kanye ne-viscosity ephezulu (HV) PAC.

I-PAC LV inesisindo esiphansi samangqamuzana kanye nezinga eliphansi lokushintshwa. Isetshenziswa njenge-ejenti yokulawula ukuhlunga futhi njenge-modifier ye-rheology emanzini okumba. I-LV-PAC inokuncibilika okuhle emanzini futhi iyasebenza ezindaweni eziphansi. Ibuye isetshenziswe njenge-viscosifier kuma-slurries kasimende nanjenge-stabilizer kuma-emulsions.

I-PAC HV, ngakolunye uhlangothi, inesisindo semolekyuli ephakeme kanye nezinga eliphakeme lokushintshwa kune-LV-PAC. Isetshenziswa njenge-viscosifier eyinhloko kanye ne-ejenti yokulawula ukulahlekelwa kwamanzi emanzini okumba. I-HV-PAC ingasetshenziswa futhi njenge-viscosifier yesibili ngokuhlanganiswa namanye ama-polymer. Iyakwazi ukubekezelela usawoti kanye nezinga lokushisa okuphezulu, futhi iyasebenza ekugxilweni okuphezulu.

Kokubili i-LV-PAC ne-HV-PAC ziyi-polyanionic, okusho ukuthi zinezindleko ezingezinhle. Lokhu kukhokhiswa kubenza baphumelele ekulawuleni ukulahlekelwa uketshezi ngokwenza ikhekhe lokuhlunga emthonjeni. Ukushaja okungeyikho kubenza baphumelele ekuvimbeleni ukugeleza kwe-shale nokuhlakazeka. I-PAC ingaphinda ithuthukise ukuzinza kwe-wellbore ngokuvimbela ukufuduka kwezinhlayiya zenhlawulo nezinhlayiya zobumba.

Sengiphetha, i-polyanionic cellulose (PAC) iyi-polymer eguquguqukayo esetshenziswa embonini kawoyela negesi njengesengezo soketshezi lokumba. I-LV-PAC ne-HV-PAC amamaki amabili ajwayelekile e-PAC asetshenziselwa izinjongo ezihlukene. I-LV-PAC isetshenziswa njenge-ejenti yokulawula ukuhlunga nanjenge-rheology modifier, kuyilapho i-HV-PAC isetshenziswa njenge-viscosifier eyinhloko kanye ne-ejenti yokulawula ukulahlekelwa uketshezi. Womabili amamaki e-PAC angama-polyanionic futhi ayasebenza ekulawuleni ukulahlekelwa uketshezi futhi avimbele ukugeleza kwe-shale nokuhlakazeka.