Indlela Yokunqunywa KweGel Amandla E-Cellulose Ether
Ukukala amandla wei-cellulose ether gel, lesi sihloko sethula ukuthi nakuba i-cellulose ether gel kanye nama-ejenti okulawula iphrofayili afana ne-jelly anezinqubo ezihlukene ze-gelation, angasebenzisa ukufana ngokubukeka, okungukuthi, awakwazi ukugeleza ngemva kwe-gelation Esimeni esiqinile, indlela yokubona evame ukusetshenziswa, indlela yokuzungezisa kanye nendlela yokuphumelela ye-vacuum yokuhlola amandla ejeli isetshenziselwa ukuhlola amandla ejeli ye-cellulose ether, futhi kunendlela entsha yokuphumelela kwengcindezi eqondile. Ukusebenza kwalezi zindlela ezine ekunqumeni amandla ejeli ye-cellulose ether kwahlaziywa ngokuhlolwa. Imiphumela ibonisa ukuthi indlela yokubuka ingahlola kuphela amandla e-cellulose ether, indlela yokuzungeza ayifanele ukuhlola amandla e-cellulose ether, indlela yokuvala ingahlola kuphela amandla e-cellulose ether ngamandla angaphansi kwe-0.1 MPa, futhi ingcindezi enhle esanda kufakwa Le ndlela ingahlola ngobuningi amandla ejeli ye-cellulose ether.
Amagama angukhiye: ijeli; i-cellulose ether gel; amandla; indlela
0.Isandulelo
Ama-ejenti okulawula iphrofayili asuselwa ku-polymer asetshenziswa kakhulu ekuxhumekeni kwamanzi e-oilfield nokulawula iphrofayili. Kodwa-ke, eminyakeni yamuva nje, i-gel cellulose ether plugging kanye nesistimu yokulawula ezwela izinga lokushisa ezwelayo futhi ekwazi ukubuyisela emuva kancane kancane ibe isizinda socwaningo sokuxhunywa kwamanzi kanye nokulawulwa kwephrofayili kumachibi kawoyela asindayo. . Amandla ejeli ye-cellulose ether ingenye yezinkomba ezibaluleke kakhulu zokuxhuma ukubunjwa, kodwa ayikho indinganiso efanayo yendlela yayo yokuhlola amandla. Izindlela ezivame ukusetshenziswa zokuhlola amandla e-jelly, njengendlela yokubuka - indlela eqondile neyongayo yokuhlola amandla e-jelly, sebenzisa ithebula lekhodi yamandla e-jelly ukuze wahlulele izinga lamandla ejeli okufanele likalwe; indlela yokuzungezisa - amathuluzi asetshenziswa kakhulu yi-Brookfield viscometer ne-rheometer, izinga lokushisa lesampula yokuhlola i-viscometer ye-Brookfield lilinganiselwe phakathi kuka-90°C; indlela ye-breakthrough vacuum - lapho umoya usetshenziselwa ukubhoboza ijeli, ukufundwa okuphezulu kwegeji yokucindezela kumelela amandla ejeli. Indlela ye-gelling ye-jelly ukwengeza i-ejenti yokuxhumanisa kwisisombululo se-polymer. I-agent exhumanisa i-cross-linking kanye ne-polymer chain ixhunywe ngamabhondi amakhemikhali ukuze enze isakhiwo senethiwekhi yendawo, futhi isigaba se-liquid sihlanganiswe kuso, ukuze lonke uhlelo lulahlekelwe uketshezi, bese luguqula I-jelly, le nqubo ayiguquki futhi kuwushintsho lwamakhemikhali. Indlela yejeli ye-cellulose ether iwukuthi ekushiseni okuphansi, ama-macromolecules e-cellulose ether azungezwe ama-molecule amancane amanzi ngokusebenzisa izibopho ze-hydrogen ukuze enze isixazululo samanzi. Njengoba izinga lokushisa lesisombululo likhuphuka, izibopho ze-hydrogen ziyabhujiswa, futhi ama-molecule amakhulu e-cellulose ether Isimo lapho ama-molecule ahlangana khona ngokusebenzisana kwamaqembu e-hydrophobic ukuze enze i-gel ukushintsha ngokomzimba. Nakuba indlela ye-gelation yalezi zibili ihlukile, ukubukeka kunesimo esifanayo, okungukuthi, isimo se-semi-solid esinganyakazi sakhiwe endaweni enezinhlangothi ezintathu. Uma ngabe indlela yokuhlola yamandla ejeli ifanelekile yini ekuhloleni amandla ejeli ye-cellulose ether idinga ukuhlolwa nokuqinisekiswa kokuhlolwa. Kuleli phepha, izindlela ezintathu zendabuko zisetshenziselwa ukuhlola amandla e-cellulose ether gels: indlela yokubona, indlela yokujikeleza kanye nendlela yokukhipha i-vacuum, kanye nendlela yokuphumelela kwengcindezi enhle yenziwa ngalesi sisekelo.
1. Ingxenye yokuhlola
1.1 Amathuluzi namathuluzi okuhlola amakhulu
Ukugeza kwamanzi okushisa okungashintshi kukagesi, i-DZKW-S-6, i-Beijing Yongguangming Medical Instrument Co., Ltd.; izinga lokushisa eliphezulu kanye ne-rheometer yokucindezela okukhulu, i-MRS-III, eJalimane inkampani ye-HAAKE; ajikelezayo amanzi empompi ye-vacuum enezinjongo eziningi, i-SHB-III, i-Gongyi Red Instrument Equipment Co., Ltd.; inzwa, DP1701-EL1D1G, Baoji Best Control Technology Co., Ltd.; uhlelo lokuthola ingcindezi, i-Shandong Zhongshi Dashiyi Technology Co., Ltd.; ithubhu le-colorimetric, 100 mL, i-Tianjin Tianke Glass Instrument Manufacturing Co., Ltd.; Ibhodlela lengilazi elimelana nokushisa okuphezulu, 120 mL, Schott Glass Works, Germany; i-nitrogen ephezulu, i-Tianjin Gaochuang Baolan Gas Co., Ltd.
1.2 Amasampula okuhlola nokulungiselela
I-Hydroxypropyl methylcellulose ether, 60RT400, Taian Ruitai Cellulose Co., Ltd.; ncibilikisa i-2g, 3g kanye ne-4g ye-hydroxypropylmethylcellulose ether ku-50 mL amanzi ashisayo ku-80℃, hlanganisa kahle bese wengeza 25℃emanzini abandayo angama-50 ml, amasampula ahlakazwa ngokuphelele ukuze enze izixazululo ze-cellulose ether ezinezingxube ze-0.02g/mL, 0.03g/mL kanye no-0.04g/mL ngokulandelana.
1.3 Indlela yokuhlola yokuhlola amandla ejeli ye-cellulose ether
(1) Ihlolwe ngendlela yokubuka. Umthamo wamabhodlela engilazi amelana nokushisa okuphezulu anomlomo obanzi asetshenziswe esivivinyweni ngu-120mL, futhi umthamo wesixazululo se-cellulose ether ngu-50mL. Faka izixazululo ze-cellulose ether ezilungisiwe ezinezingxube ezingu-0.02g/mL, 0.03g/mL kanye no-0.04g/mL ebhodleleni lengilazi elikwazi ukumelana nokushisa okuphezulu, liguqule emazingeni okushisa ahlukene, bese uqhathanisa ukugxilisa okuthathu okungenhla ngokwekhodi yamandla yejeli. Amandla e-gelling esixazululo se-aqueous cellulose ether ahloliwe.
(2) Ihlolwe ngendlela yokuzungezisa. Ithuluzi lokuhlola elisetshenziswe kulokhu kuhlolwa yi-rheometer enezinga lokushisa eliphezulu kanye nengcindezi ephezulu. Isixazululo samanzi se-cellulose ether esinengxube ka-2% siyakhethwa bese sifakwa esigubhu ukuze sihlolwe. Izinga lokushisa ngu-5℃/10 min, izinga lokugunda lingu-50 s-1, futhi isikhathi sokuhlola siyiminithi elingu-1. , Ibanga lokushisa lingama-40~110℃.
(3) Ihlolwe nge-breakthrough vacuum method. Xhuma amashubhu e-colorimetric aqukethe ijeli, vula iphampu ye-vacuum, futhi ufunde umkhawulo wokufunda wegeji yokucindezela lapho umoya ugqekeza ijeli. Isampula ngayinye isetshenziswa izikhathi ezintathu ukuze kutholwe inani elimaphakathi.
(4) Hlola ngendlela yokucindezela okuhle. Ngokomgomo we-breakthrough vacuum degree method, siyithuthukise le ndlela yokuhlola futhi samukela indlela yokuphumelela kwengcindezi enhle. Xhuma amashubhu embala aqukethe ijeli, futhi usebenzise isistimu yokuthola ingcindezi ukuze uhlole amandla ejeli ye-cellulose ether. Inani lejeli elisetshenziswe ekuhlolweni ngu-50mL, umthamo weshubhu le-colorimetric ngu-100mL, ububanzi bangaphakathi bungu-3cm, ububanzi bangaphakathi beshubhu eliyindilinga elifakwe kujeli ngu-1cm, kanti ukujula kokufakwa kungu-3cm. Vula kancane kancane isilinda se-nitrogen. Uma idatha yengcindezi ebonisiwe yehla ngokuzumayo nangokucijile, thatha indawo ephakeme kakhulu njengenani lamandla elidingekayo ukuze ubhodloze ijeli. Isampula ngayinye isetshenziswa izikhathi ezintathu ukuze kutholwe inani elimaphakathi.
2. Imiphumela yokuhlola kanye nengxoxo
2.1 Ukusebenza kwendlela yokubona ukuhlola amandla ejeli ye-cellulose ether
Njengomphumela wokuhlola amandla ejeli ye-cellulose ether ngokubuka, ukuthatha isixazululo se-cellulose ether ne-concentration ye-0.02 g/mL njengesibonelo, kungaziwa ukuthi izinga lamandla lingu-A uma izinga lokushisa lingama-65.°C, futhi amandla aqala ukwanda njengoba izinga lokushisa likhuphuka, lapho izinga lokushisa lifinyelela ku-75℃, iveza isimo sejeli, izinga lamandla liyashintsha lisuka ku-B liye ku-D, futhi lapho izinga lokushisa likhuphuka liye ku-120℃, izinga lamandla liba ngu-F. Kungabonakala ukuthi umphumela wokuhlola wale ndlela yokuhlola ubonisa kuphela izinga lamandla ejeli, kodwa awukwazi ukusebenzisa idatha ukuveza amandla athile ejeli, okungukuthi, iyikhwalithi kodwa hhayi. ubuningi. Inzuzo yale ndlela ukuthi ukusebenza kulula futhi kunembile, futhi ijeli enamandla adingekayo ingahlolwa ngokushibhile ngale ndlela.
2.2 Ukusebenza kwendlela yokuzungezisa ukuhlola amandla ejeli ye-cellulose ether
Lapho isixazululo sishisiswe sibe ngu-80°C, i-viscosity yesixazululo ingu-61 mPa·s, khona-ke i-viscosity ikhula ngokushesha, futhi ifinyelela inani eliphakeme lika-46 790 mPa·s ngo100°C, bese amandla ehla. Lokhu akuhambisani nesenzakalo esibonwe ngaphambili sokuthi i-viscosity ye-hydroxypropyl methylcellulose ether solution ether iqala ukwanda ku-65.°C, namajeli avela cishe ku-75°C futhi amandla ayaqhubeka nokukhula. Isizathu salesi senzakalo ukuthi i-gel iphukile ngenxa yokujikeleza kwe-rotor lapho kuhlolwa amandla e-gel e-cellulose ether, okuholela kudatha engalungile yamandla e-gel emazingeni okushisa alandelayo. Ngakho-ke, le ndlela ayifanele ukuhlola amandla e-cellulose ether gels.
2.3 Ukusebenza kwendlela ye-vacuum ephumelelayo yokuhlola amandla ejeli ye-cellulose ether
Imiphumela yokuhlolwa yamandla ejeli ye-cellulose ether yahlolwa ngendlela ye-vacuum ephumelelayo. Le ndlela ayibandakanyi ukujikeleza kwe-rotor, ngakho-ke inkinga yokukhishwa kwe-colloidal nokuphuka okubangelwa ukujikeleza kwe-rotor ingagwenywa. Kusukela emiphumeleni yokuhlola engenhla, kungabonakala ukuthi le ndlela ingahlola ngokulinganisa amandla ejeli. Lapho izinga lokushisa lingu-100°C, amandla ejeli ye-cellulose ether ene-concentration ye-4% inkulu kune-0.1 MPa (izinga eliphezulu le-vacuum degree), futhi amandla awakwazi ukulinganiswa angaphezu kuka-0.1 MPa. Amandla ejeli, okungukuthi, umkhawulo ongaphezulu wamandla ejeli ahlolwe yile ndlela yi-0.1 MPa. Kulesi sivivinyo, amandla ejeli ye-cellulose ether makhulu kuno-0.1 MPa, ngakho le ndlela ayifaneleki ukuhlola amandla ejeli ye-cellulose ether.
2.4 Ukusebenza kwendlela yokucindezela okuhle ukuhlola amandla ejeli ye-cellulose ether
Indlela yokucindezela okuhle yasetshenziswa ukuze kuhlolwe imiphumela yokuhlola yamandla ejeli ye-cellulose ether. Kuyabonakala ukuthi le ndlela ingavivinya ngokwesilinganiso ijeli ngamandla angaphezu kuka-0.1 MPa. Isistimu yokutholwa kwedatha esetshenziswe esivivinyweni yenza imiphumela yokuhlola inembe kakhulu kunedatha yokufunda yokwenziwa ngendlela yedigri ye-vacuum.
3. Isiphetho
Amandla ejeli ye-cellulose ether abonise ukuthambekela okwandayo ngokunyuka kwezinga lokushisa. Indlela yokuzungezisa kanye nendlela ye-vacuum yokuphumelela ayifanele ukunquma amandla ejeli ye-cellulose ether. Indlela yokubona ingakala kuphela ngekhwalithi amandla ejeli ye-cellulose ether, futhi indlela yokucindezela esanda kufakwa ephozithivu ingahlola ngobuningi amandla ejeli ye-cellulose ether.
Isikhathi sokuthumela: Jan-13-2023