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 ezilungele ukusingqongileyo kwiPAC 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.