I-Polyanionic cellulose (PAC) i-polymer encibilika emanzini esetshenziswa kabanzi embonini ye-petroleum njengesithako soketshezi lokumba.Kuyi-polyanionic derivative ye-cellulose, ehlanganiswe ukuguqulwa kwamakhemikhali e-cellulose nge-carboxymethyl.I-PAC inezakhiwo ezinhle kakhulu njengokuncibilika kwamanzi okuphezulu, ukuzinza kwe-thermal, nokumelana ne-hydrolysis.Lezi zakhiwo zenza i-PAC ibe isithasiselo esifanele sokumba amasistimu oketshezi ekuhloleni nasekukhiqizeni i-petroleum.
Ukusetshenziswa kwe-PAC ekumba uwoyela ikakhulukazi ngenxa yekhono layo lokulawula i-viscosity kanye nezakhiwo zokuhlunga koketshezi lokumba.Ukulawulwa kwe-viscosity kuyisici esibalulekile ekusebenzeni kokumba njengoba kuthinta ukusebenza kahle nokuvikeleka kokubhola.Ukusetshenziswa kwe-PAC kusiza ukuzinzisa i-viscosity yoketshezi lokumba, okubaluleke kakhulu ekugcineni izakhiwo zokugeleza koketshezi lokumba.I-viscosity yoketshezi lokumba ilawulwa ukugxila kwe-PAC esetshenzisiwe kanye nesisindo se-molecule ye-polymer.I-molecule ye-PAC isebenza njenge-thickener, noma i-viscosifier, ngoba yandisa i-viscosity yoketshezi lokumba.I-viscosity yoketshezi lokumba incike ekugxilweni kwe-PAC, izinga lokushintshwa kanye nesisindo samangqamuzana.
Ukulawula ukuhlunga kungenye into ebalulekile ekusebenzeni kokumba.Ukusebenza kokuhlunga kuhlobene nezinga uketshezi olungena ngalo odongeni lomthombo ngesikhathi sokumba.Ukusebenzisa i-PAC kusiza ukuthuthukisa ukulawulwa kokuhlunga nokunciphisa ukungena koketshezi.Ukungena kwamanzi kungaholela ekulahlekelweni kokujikeleza, ukulimala kokubunjwa kanye nokunciphisa ukusebenza kahle kokumba.Ukwengeza i-PAC oketshezini lokumba kudala isakhiwo esifana nejeli esisebenza njengekhekhe lokuhlunga ezindongeni zomthombo.Leli khekhe lesihlungi linciphisa ukungena kwamanzi, lisiza ukugcina ubuqotho bomthombo kanye nokunciphisa ingozi yokulimala kokubunjwa.
I-PAC iphinde isetshenziselwe ukuthuthukisa izakhiwo zokucindezelwa kwe-shale koketshezi lokumba.Ukucindezelwa kwe-shale yikhono loketshezi lokumba ukuvimbela i-shale esebenzayo ekushiseni nasekuvuvukeni.Ukufakwa kwamanzi nokunwetshwa kwe-shale esebenzayo kungaholela ezinkingeni ezifana nokungaqini kahle kwe-wellbore, ukuvaleleka kwamapayipi, nokulahleka kokujikeleza kwegazi.Ukwengeza i-PAC oketshezini lokumba kudala umgoqo phakathi kwe-shale noketshezi lokumba.Lo mgoqo usiza ukugcina ubuqotho bodonga lomthombo ngokunciphisa i-hydration nokuvuvukala kwe-shale.
Okunye ukusetshenziswa kwe-PAC ekumba uwoyela kunjengesengezo sokunciphisa ukulahleka kwamanzi.Ukulahlekelwa kokuhlunga kubhekisela ekulahlekeni koketshezi lokumba lungena ekubunjweni ngesikhathi sokumba.Lokhu kulahlekelwa kungaholela ekulimaleni kokwakheka, ukulahleka kokujikeleza kanye nokunciphisa ukusebenza kahle kokumba.Ukusetshenziswa kwe-PAC kusiza ukunciphisa ukulahlekelwa koketshezi ngokudala ikhekhe lokuhlunga ezindongeni zomthombo elivimba ukugeleza koketshezi ekubunjweni.Ukulahlekelwa uketshezi okwehlisiwe kusiza ukugcina ubuqotho be-wellbore futhi kuthuthukisa ukusebenza kahle kokumba.
I-PAC ingase futhi isetshenziselwe ukuthuthukisa ukuzinza kwe-wellbore yoketshezi lokumba.Ukuzinza kwe-Wellbore kusho amandla oketshezi lokumba ukuze kugcinwe ukuqina kwe-wellbore ngesikhathi sokumba.Ukusetshenziswa kwe-PAC kusiza ukuzinzisa udonga lomthombo ngokwenza ikhekhe lokuhlunga odongeni lomthombo.Leli khekhe lesihlungi linciphisa ukungena koketshezi odongeni futhi linciphisa ingozi yokungazinzi kwe-wellbore.
Ukusetshenziswa kwe-polyanionic cellulose ekubholeni amafutha kunikeza izinzuzo eziningi.I-PAC isetshenziselwa ukulawula i-viscosity nokusebenza kokuhlunga koketshezi lokumba, ukuthuthukisa ukusebenza kokuvimbela i-shale, ukunciphisa ukulahlekelwa kokuhlunga, nokuthuthukisa ukuzinza kwe-wellbore.Ukusetshenziswa kwe-PAC ekumbiweni kukawoyela kusiza ukwandisa ukusebenza kahle futhi kunciphisa ubungozi bokulimala kokubunjwa, ukujikeleza okulahlekile kanye nokungazinzi kwe-wellbore.Ngakho-ke, ukusetshenziswa kwe-PAC kubalulekile empumelelweni yokumba nokukhiqizwa kukawoyela.
Isikhathi sokuthumela: Oct-08-2023