I-Polyanionic Cellulose (PAC) i-polymer esolulekayo esetshenziswa kabanzi embonini kaphethiloli njengesengezo soketshezi. Kuyinto esuselwa e-polyanionic ye-cellulose, enziwe ngokuguqulwa kwamakhemikhali kwe-cellulose nge-carboxymethyl. I-PAC inezakhiwo ezinhle kakhulu ezifana ne-solubity yamanzi ephezulu, ukuqina okushisayo, nokuphikiswa kwe-hydrolysis. Lezi zakhiwo zenza i-PAC ibe yisengezo esifanelekile sokumba ama-fluid systems ekuhlolweni nasekukhiqizweni.
Ukusetshenziswa kwe-PAC ekuvuthweni kwamafutha ikakhulukazi ngenxa yekhono lawo lokulawula i-viscosity kanye ne-Filtration Properties yoketshezi lokumba. Ukulawulwa kwe-Viscosity kuyinto ebucayi ekusebenzeni kokumba njengoba kuthinta ukuqubuka nokuphepha. Ukusetshenziswa kwe-PAC kusiza ukuzinzisa ukubonwa koketshezi lokumba, okubaluleke kakhulu ukuze ulondoloze izindawo zokugeleza koketshezi lokumba. I-viscosity yoketshezi lokumba ilawulwa yi-PAC esetshenzisiwe kanye nesisindo se-polymer. I-molecule ye-pac isebenza njengomkhulu, noma i-viscosifier, ngoba ikhulisa ukubonakala koketshezi lokumba. I-viscosity yokushayela uketshezi luncike ekuhlushwa kwe-PAC, izinga lokufakwa esikhundleni kanye nesisindo se-molecular.
Ukulawulwa kwe-Filtration kungenye into ebucayi ekusebenzeni kokumba. Ukusebenza kwe-Filtration kuhlobene nesilinganiso lapho uketshezi oluhlasela udonga kahle ngesikhathi sokumba. Usebenzisa i-PAC kusiza ukuthuthukisa ukulawulwa kwe-FILTRATION futhi kunciphise ukungenwa koketshezi. Ukungenelela kwe-fluid kungaholela ekulahlekelweni kokujikeleza kwegazi, ukulimala kokwakheka kanye nokunciphisa ukusebenza kwe-dripling. Ukungeza i-PAC kuya koketshezi lokumba kudala isakhiwo esinjenge-gel esisebenza njengekhekhe lokuhlunga ezindongeni kahle. Le khekhe lokuhlunga linciphisa ukungenelela uketshezi, isiza ukugcina ubuqotho be-Wellbore futhi kunciphise ubungozi bomonakalo wokwakha.
I-PAC nayo isetshenziselwa ukuthuthukisa izakhiwo zokucindezelwa ze-shale zoketshezi lokumba. Ukucindezelwa kwe-Shale yikhono loketshezi lokumba ukuvikela i-shale esebenzayo kusuka ku-hydrating kanye nokuvuvukala. I-Hydration nokwanda kwe-shale esebenzayo kungaholela ezinkingeni ezinjengokuqina kwe-Wellbore, ipayipi libambeke, futhi lilahlekile ukujikeleza. Ukungezwa kwe-PAC kuya koketshezi lokumba kwakha umgoqo phakathi kwe-shale kanye noketshezi lokumba. Lesi sivimbelo sisiza ukugcina ubuqotho bodonga kahle ngokunciphisa i-hydration nokuvuvukala kwe-shale.
Okunye ukusetshenziswa kwe-PAC ekuvuthweni kwamafutha kunjengesengezo sokunciphisa amanzi. Ukulahleka kwe-Filtration kusho ukulahleka koketshezi lokumba okufaka ukwakheka ngesikhathi sokumba. Lokhu kulahleka kungaholela ekulimaleni kokwakheka, ukusakazwa okulahlekile kanye nokuncishiswa kokudla. Ukusetshenziswa kwe-PAC kusiza ukunciphisa ukulahleka koketshezi ngokwakha ikhekhe lokuhlunga ezindongeni ezinhle ezivimba uketshezi olugeleza ekwakhekeni. Ukulahleka kwe-fluid okuncishisiwe kusiza ukugcina ubuqotho bempilo futhi kuthuthukise ukusebenza kahle.
I-PAC nayo ingasetshenziswa ukwenza ngcono ukuqina komthombo wokutshala uketshezi. Ukuqina kwe-Wellbore kusho amandla okushayela uketshezi ukuze kugcinwe ukuqina kwe-Wellbore ngesikhathi sokumba. Ukusetshenziswa kwe-PAC kusiza ukuqinisa udonga kahle ngokwakha ikhekhe lokuhlunga odongeni kahle. Le khekhe lokuhlunga inciphisa ukungenela uketshezi odongeni futhi inciphise ingozi yokungazinzi kahle.
Ukusetshenziswa kwe-polyanionic cellulose ekuvuthweni kwamafutha kunikeza izinzuzo eziningi. I-PAC isetshenziselwa ukulawula i-viscosity nokusebenza kwe-Filtration kokushayela uketshezi, ukuthuthukisa ukusebenza kokuvinjwa kokuvinjwa, kunciphise ukulahleka kokuhlunga, futhi uthuthukise ukuqina kwe-Wellbore. Ukusetshenziswa kwe-PAC ekubambeni uwoyela kusiza ukukhulisa ukusebenza kahle futhi kunciphise ubungozi bomonakalo wokwakha, ukusakazwa okulahlekile kanye nokuqina kwe-Wellbore. Ngakho-ke, ukusetshenziswa kwe-PAC kubalulekile empumelelweni yokushayela kawoyela nokukhiqizwa.
Isikhathi sePosi: Oct-08-2023