I-Polyanionic Cellulose (PAC)

I-Polyanionic Cellulose (PAC) iphuma ku-cellulose encibilika emanzini esetshenziswa kabanzi ezimbonini ezihlukahlukene ngenxa yezakhiwo zayo ze-rheological namandla okulawula ukulahlekelwa uketshezi. Isuselwa ku-cellulose yemvelo ngochungechunge lokuguqulwa kwamakhemikhali, okuholela ku-polymer enezindleko ze-anionic eduze komgogodla we-cellulose. Nawa amaphuzu abalulekile mayelana nePolyanionic Cellulose:

1. Isakhiwo Sekhemikhali: I-PAC ifana ngamakhemikhali neselulosi kodwa iqukethe amaqembu e-anionic carboxyl (-COO-) anamathiselwe kumgogodla we-cellulose. Lawa maqembu e-anionic anikeza i-PAC izici zayo eziyingqayizivele, okuhlanganisa ukunyibilika kwamanzi kanye nekhono lokuxhumana namanye ama-molecule ngokusebenzisana kwe-electrostatic.
2. Ukusebenza: I-PAC isetshenziswa ngokuyinhloko njengesilungisi se-rheology kanye ne-ejenti yokulawula ukulahlekelwa uketshezi ekubhobolweni koketshezi lokuhlola uwoyela negesi. Isiza ukulawula i-viscosity kanye nokugeleza kwezakhiwo zoketshezi lokumba, ithuthukise ukumiswa kwezinto eziqinile, futhi yehlise ukulahleka koketshezi kube ukwakheka kwezimbotshana. I-PAC iphinde ithuthukise ukuhlanzwa kwemigodi futhi ivimbele ukungazinzi kwe-wellbore ngesikhathi sokumba.
3. Izicelo: Ukusetshenziswa okuyinhloko kwe-PAC kusembonini kawoyela negesi, lapho isetshenziselwa ukumba ukwakheka kodaka. Ivamise ukusetshenziswa kukho kokubili uketshezi lokumba olususelwe emanzini kanye nolwe-oyela ukuze kuthuthukiswe ukusebenza nokuqinisekisa ukusebenza kahle kokumba. I-PAC iphinde isetshenziswe kwezinye izimboni ukuqina kwayo, ukusimamisa, kanye nezindawo zokugcina amanzi ekwenziweni okuhlukahlukene.
4. Izinhlobo: I-PAC itholakala kumabanga ahlukene kanye nama-viscosities ukuze ivumelane nezidingo ezithile zohlelo lokusebenza. Izinhlobo ezijwayelekile ze-PAC zifaka amamaki e-viscosity aphansi okulawula uketshezi lokulahlekelwa kanye namamaki e-viscosity ephezulu okuguqulwa kwe-viscosity nokumiswa kokuqinile oketshezini lokumba. Ukukhethwa kohlobo lwe-PAC kuncike ezintweni ezifana nezimo zomthombo, indawo yokumba, kanye nokucaciswa koketshezi.
5. Izinzuzo: Ukusetshenziswa kwe-PAC kunikeza izinzuzo ezimbalwa ekusebenzeni kokumba, okuhlanganisa:
   • Ukulawulwa okusebenzayo kokulahlekelwa uketshezi ukuze kugcinwe ukuzinza kwe-wellbore nokuvimbela ukulimala kokwakheka.
   • Ukumiswa okuthuthukisiwe kokusikwa kwe-drill kanye nezinto eziqinile, okuholela ekuhlanzweni okungcono kwemigodi.
   • Izakhiwo ze-rheological ezithuthukisiwe, eziqinisekisa ukusebenza okungaguquki koketshezi ngaphansi kwezimo ezihlukene ze-downhole.
   • Ukuhambisana nezinye izithasiselo kanye nezingxenye zoketshezi lokumba, okusiza ukwakheka ngokwezifiso kanye nokwenza kahle.
6. Ukucatshangelwa Kwemvelo: Nakuba i-PAC isetshenziswa kabanzi ekubholeni uketshezi, umthelela wayo kwezemvelo kanye nokuwohloka kwemvelo kufanele kubhekwe. Imizamo iyaqhubeka yokuthuthukisa ezinye izindlela ezingahambisana nemvelo esikhundleni se-PAC futhi kuncishiswe indawo yayo yezemvelo emisebenzini yokumba.

I-Polyanionic Cellulose (PAC) iyisengezo esisebenza ngezindlela eziningi nesibalulekile embonini kawoyela negesi, lapho idlala khona indima ebalulekile ekwenzeni ngcono ukusebenza koketshezi lokumba kanye nokuqinisekisa ukusebenza kahle kokumba. Izici zayo eziyingqayizivele ze-rheological, amandla okulawula ukulahlekelwa uketshezi, nokuhambisana kwenza kube ingxenye ebalulekile ekubunjweni kodaka.