Ukusetshenziswa kwe-polyanionic cellulose ekubholeni uwoyela

I-Polyanionic cellulose (PAC) iyi-polymer encibilika emanzini esetshenziswa kabanzi embonini kaphethiloli njengesithako soketshezi lokubhoboza. Iyi-polyanionic derivative ye-cellulose, eyenziwe ngokuguqulwa kwamakhemikhali kwe-cellulose nge-carboxymethyl. I-PAC inezakhiwo ezinhle kakhulu njengokuncibilika kwamanzi okuphezulu, ukuzinza kokushisa, kanye nokumelana ne-hydrolysis. Lezi zakhiwo zenza i-PAC ibe isithako esifanele sezinhlelo zoketshezi lokubhoboza ekuhlolweni nasekukhiqizweni kukaphethiloli.

Ukusetshenziswa kwe-PAC ekubholeni uwoyela kungenxa yekhono layo lokulawula i-viscosity kanye nezakhiwo zokuhlunga zoketshezi lokubhoboza. Ukulawulwa kwe-viscosity kuyisici esibalulekile emisebenzini yokubhoboza njengoba kuthinta ukusebenza kahle kanye nokuphepha kokubhoboza. Ukusetshenziswa kwe-PAC kusiza ekuqiniseni i-viscosity yoketshezi lokubhoboza, okubaluleke kakhulu ekugcineni izimfanelo zokugeleza koketshezi lokubhoboza. I-viscosity yoketshezi lokubhoboza ilawulwa ukugcwala kwe-PAC esetshenzisiwe kanye nesisindo sama-molecule se-polymer. I-molecule ye-PAC isebenza njengesithambisi, noma i-viscosifier, ngoba yandisa i-viscosity yoketshezi lokubhoboza. I-viscosity yoketshezi lokubhoboza incike ekugcwaleni kwe-PAC, izinga lokushintshana kanye nesisindo sama-molecule.

Ukulawulwa kokuhlunga kungenye into ebalulekile emisebenzini yokubhoboza. Ukusebenza kokuhlunga kuhlobene nesivinini lapho uketshezi lungena ngaso odongeni lomthombo ngesikhathi sokubhoboza. Ukusebenzisa i-PAC kusiza ukuthuthukisa ukulawulwa kokuhlunga nokunciphisa ukungena koketshezi. Ukungena koketshezi kungaholela ekulahlekelweni kokujikeleza kwegazi, ukulimala kokwakheka kanye nokuncipha kokusebenza kahle kokubhoboza. Ukwengeza i-PAC oketshezini lokubhoboza kudala isakhiwo esifana nejeli esisebenza njengekhekhe lokuhlunga ezindongeni zomthombo. Leli khekhe lokuhlunga linciphisa ukungena koketshezi, lisize ekugcineni ubuqotho bomgodi womthombo kanye nokunciphisa ingozi yokulimala kokwakheka.

I-PAC isetshenziselwa futhi ukuthuthukisa izakhiwo zokucindezela i-shale yoketshezi lokubhoboza. Ukucindezela i-shale kuyikhono loketshezi lokubhoboza ukuvimbela i-shale esabelayo ekumanziseni nasekuvuvukeni. Ukumanzisa nokwanda kwe-shale esabelayo kungaholela ezinkingeni ezifana nokungazinzi kwe-wellbore, ukubhajwa kwepayipi, nokulahleka kokujikeleza kwegazi. Ukwengeza i-PAC oketshezini lokubhoboza kudala isithiyo phakathi kwe-shale noketshezi lokubhoboza. Lesi sisithiyo sisiza ukugcina ubuqotho bodonga lomthombo ngokunciphisa ukumanzisa nokuvuvukala kwe-shale.

Okunye ukusetshenziswa kwe-PAC ekubholeni uwoyela kuyisengezo sokunciphisa ukulahleka kwamanzi. Ukulahleka kokuhlunga kubhekisela ekulahlekelweni koketshezi lokubhoboza olungena ekwakhekeni ngesikhathi sokubhoboza. Lokhu kulahlekelwa kungaholela ekulimaleni kokwakheka, ukulahleka kokujikeleza kwegazi kanye nokwehla kokusebenza kahle kokubhoboza. Ukusetshenziswa kwe-PAC kusiza ekunciphiseni ukulahleka koketshezi ngokudala ikhekhe lokuhlunga ezindongeni zomthombo elivimba ukugeleza koketshezi ekwakhekeni. Ukwehla kokulahlekelwa koketshezi kusiza ukugcina ubuqotho be-wellbore futhi kuthuthukise ukusebenza kahle kokubhoboza.

I-PAC ingasetshenziswa futhi ukuthuthukisa ukuzinza kwe-wellbore yoketshezi lokubhoboza. Ukuzinza kwe-wellbore kubhekisela ekhonweni loketshezi lokubhoboza lokugcina ukuzinza kwe-wellbore ngesikhathi sokubhoboza. Ukusetshenziswa kwe-PAC kusiza ekuqiniseni udonga lomthombo ngokwenza ikhekhe lokuhlunga odongeni lomthombo. Leli khekhe lokuhlunga linciphisa ukungena koketshezi odongeni futhi linciphise ingozi yokungazinzi kwe-wellbore.

Ukusetshenziswa kwe-polyanionic cellulose ekubholeni uwoyela kunikeza izinzuzo eziningi. I-PAC isetshenziselwa ukulawula ukusebenza kwe-viscosity kanye nokuhlunga koketshezi lokubhoboza, ukuthuthukisa ukusebenza kokuvimbela i-shale, ukunciphisa ukulahleka kokuhlunga, kanye nokuthuthukisa ukuzinza kwe-wellbore. Ukusetshenziswa kwe-PAC ekubholeni uwoyela kusiza ukwandisa ukusebenza kahle futhi kunciphisa ingozi yokulimala kokwakheka, ukulahleka kokujikeleza kwegazi kanye nokungazinzi kwe-wellbore. Ngakho-ke, ukusetshenziswa kwe-PAC kubalulekile empumelelweni yokubhoboza uwoyela kanye nokukhiqizwa kwawo.