I-PAC (Polyanionic Cellulose)

I-Polyanionic cellulose (PAC) i-polymer encibilika emanzini etholakala ku-cellulose, isakhi esivele ngokwemvelo esitholakala ezitshalweni. I-PAC isetshenziswa kakhulu ezimbonini ezahlukahlukene, okuhlanganisa ukumba uwoyela, ngenxa yezakhiwo zayo ezihlukile kanye nokuhlukahluka. Esimeni sokumba uwoyela, i-PAC yenza imisebenzi eminingana ebalulekile kuketshezi lokumba:

1. I-Viscosification: I-PAC isetshenziswa ngokuyinhloko njenge-viscosifier kuketshezi lokumba olusekelwe emanzini. Isiza ukukhulisa i-viscosity yoketshezi, ithuthukise ikhono layo lokumisa okwesikhashana kanye nokuthutha ama-cuttings abhoboziwe nokunye okuqinile phezulu. Lokhu kusiza ekugcineni ukuzinza komthombo kanye nokuvimbela ukubhidlika kwemigodi.
2. Ukulawula Ukulahleka Kwe-Fluid: I-PAC yenza ikhekhe lesihlungi elincanyana, elingangeneli ezindongeni zomthombo, linciphisa ukulahlekelwa uketshezi lokumba endaweni ezungezile. Lokhu kusiza ukugcina ubuqotho be-wellbore, kuvimbela ukulimala kokwakheka, futhi kuthuthukise ukusebenza kahle kokumba.
3. Ukuguqulwa Kwe-Rheology: I-PAC ithonya ukuziphatha kokugeleza kanye nezakhiwo ze-rheological zoketshezi lokumba, ithuthukise ukumiswa kwezinto eziqinile futhi inciphise ukuzinza. Lokhu kuqinisekisa ukusebenza okungaguquguquki koketshezi lokumba ngaphansi kwezimo ezihlukene zemigodi.
4. Ukuhlanza Imigodi: Ngokwandisa i-viscosity namandla okuthwala oketshezi lokumba, i-PAC ithuthukisa ukusebenza kahle kokuhlanza imigodi, yenze kube lula ukukhishwa kwezinsika ezibhoboziwe kanye nemfucumfucu emthonjeni womthombo.
5. Izinga Lokushisa Nokuqina Kosawoti: I-PAC ibonisa ukubekezelela ukushisa okuphezulu nosawoti, igcina i-viscosity yayo nezici zokusebenza phezu kwebanga elibanzi lamazinga okushisa kanye nosawoti otholwa emisebenzini yokumba.
6. Inobungani Nemvelo: I-PAC isuselwa emithonjeni evuselelekayo esekwe ezitshalweni futhi iyakwazi ukubola, okuyenza ivumelane nemvelo futhi ifanelekele ukusetshenziswa ezindaweni zokumba ezizwelayo emvelweni.

I-PAC itholakala kumabanga ahlukahlukene kanye nokucaciswa okuklanyelwe izidingo ezithile zoketshezi lokumba kanye nezimo zokusebenza. Izinyathelo zokulawula ikhwalithi ziqinisekisa ukuvumelana nokuhambisana nezindinganiso zomkhakha, okuhlanganisa imininingwane ye-API (American Petroleum Institute) yokumba izithasiselo zoketshezi.

Kafushane, i-polyanionic cellulose (PAC) iyisengezo esibalulekile emanzini okumba amanzi okuhlola uwoyela negesi, ehlinzeka nge-viscosification, ukulawulwa kokulahlekelwa uketshezi, ukuguqulwa kwe-rheology, nezinye izici ezibalulekile ezifaka isandla ekusebenzeni okuphumelelayo nokuphumelelayo kokumba.