Polyanionic Cellulose (PAC)

Polyanionic Cellulose (PAC) yi cellulose derivative amanzi-enyibilikayo esetyenziswa ngokubanzi kumashishini ahlukeneyo kwiipropati rheological kunye nokulawula ilahleko ulwelo amandla. Ithatyathwe kwi-cellulose yendalo ngoluhlu lohlengahlengiso lweekhemikhali, okukhokelela kwipolymer eneentlawulo ze-anionic ecaleni kwe-cellulose backbone. Nanga amanye amanqaku aphambili malunga nePolyanionic Cellulose:

1. Ubume beMichiza: I-PAC ifana neekhemikhali kwi-cellulose kodwa iqulethe amaqela e-anionic carboxyl (-COO-) eqhotyoshelwe kwi-cellulose backbone. La maqela anionic abonelela iPAC ngeempawu zayo ezizodwa, kubandakanywa ukunyibilika kwamanzi kunye nokukwazi ukusebenzisana nezinye iiathomu ngokusebenzisa i-electrostatic interactions.
2. Ukusebenza: I-PAC isetyenziswa ngokuyintloko njenge-rheology modifier kunye ne-arhente yokulawula ilahleko yamanzi kwi-drilling fluids yokuhlola i-oyile kunye negesi. Inceda ukulawula i-viscosity kunye nokuhamba kweempawu zolwelo lokomba, iphucula ukunqunyanyiswa kwezinto eziqinileyo, kwaye inciphisa ilahleko yolwelo kwimibhobho. I-PAC ikwaphucula ukucocwa komngxuma kwaye inqande ukungazinzi kwequla ngexesha lokomba.
3. Izicelo: Eyona nto isetyenziswa yiPAC kushishino lwe-oyile nerhasi, apho isetyenziselwa ukugrumba imixube yodaka. Ngokuqhelekileyo isetyenziswe kumanzi asekelwe kumanzi kunye ne-oyile yokugaya i-oyile ukuze kuphuculwe ukusebenza kunye nokuqinisekisa ukusebenza ngokufanelekileyo. I-PAC ikwasetyenziswa nakwamanye amashishini ukujiya, ukuzinzisa, kunye neempawu zokugcina amanzi kwimixube eyahlukeneyo.
4. Iindidi: I-PAC ifumaneka kumabanga ahlukeneyo kunye nee-viscosities ukuze ihambelane neemfuno zesicelo esithile. Iindidi eziqhelekileyo zePAC ziquka amabakala aphantsi-i-viscosity yokulawulwa kwelahleko yolwelo kunye namabakala aphezulu e-viscosity yokuguqulwa kwe-viscosity kunye nokumiswa kwezinto eziqinileyo kwi-drilling fluids. Ukhetho lodidi lwePAC luxhomekeke kwizinto ezifana neemeko zequla, imeko-bume yokomba, kunye neenkcukacha zolwelo.
5. Izinto eziluncedo: Ukusetyenziswa kwePAC kunika iingenelo ezininzi kwimisebenzi yokomba, kuquka:
   • Ulawulo olusebenzayo lwelahleko yolwelo ukugcina uzinzo lwe-wellbore kunye nokuthintela umonakalo wokwakheka.
   • Ukuphuculwa kokunqunyanyiswa kwe-drill cuttings kunye nezinto eziqinileyo, ezikhokelela ekucoceni okungcono komngxuma.
   • Iipropathi eziphuculweyo ze-rheological, ziqinisekisa ukusebenza kolwelo olungaguqukiyo phantsi kweemeko ezahlukeneyo ze-downhole.
   • Ukuhambelana nezinye izongezo kunye nezixhobo zokwemba ulwelo, ukuququzelela ukwakheka ngokwezifiso kunye nokwenza ngcono.
6. Iingqwalasela zokusiNgqongileyo: Ngelixa iPAC isetyenziswa kakhulu kulwelo lokomba, ifuthe layo lokusingqongileyo kunye nokonakaliswa kwezinto eziphilayo kufuneka kuthathelwe ingqalelo. Iinzame ziyaqhuba ukuphuhlisa ezinye iindlela zokusingqongileyo ezinokuthi zibe yi-PAC kunye nokunciphisa indawo yayo yokusingqongileyo kwimisebenzi yokomba.

I-Polyanionic Cellulose (PAC) sisongezo esisebenza ngeendlela ezininzi nesiyimfuneko kwishishini leoli negesi, apho idlala indima ebalulekileyo ekuphuculeni ukusebenza kolwelo lokomba kunye nokuqinisekisa ukusebenza ngokufanelekileyo kokomba. Iimpawu zayo ezizodwa ze-rheological, amandla okulawula ilahleko ye-fluid, kunye nokuhambelana kwenza kube yinto exabisekileyo ekuqhubeni ukwakhiwa kodaka.