Nzira yeKusarudza Gel Simba reCellulose Ether

Kuyera simba recellulose ether gel, nyaya yacho inotanga kuti kunyange zvazvo cellulose ether gel uye jelly-like profile control agents vane maitiro akasiyana-siyana emagelation, vanogona kushandisa kufanana mukuonekwa, kureva kuti, havagoni kuyerera mushure megelation Mumamiriro e-semi-solid, inowanzoshandiswa nzira yekucherechedza, kutenderera nzira uye vacuum breakthrough nzira yekuongorora kusimba kwejelly inoshandiswa kuongorora simba re cellulose ether gel, uye itsva yakanaka yekumanikidza nzira yekubudirira inowedzerwa. Kushanda kweiyi nzira ina pakusarudza kwe cellulose ether gel simba rakaongororwa kuburikidza nekuedza. Zvigumisiro zvinoratidza kuti nzira yekucherechedza inogona kuongorora simba re cellulose ether chete, nzira yekutenderera haina kukodzera kuongorora simba re cellulose ether, nzira yevacuum inogona kuongorora simba re cellulose ether nesimba riri pasi pe 0.1 MPa, uye iyo ichangobva kuwedzerwa kudzvanywa kwakanaka Iyi nzira inogona kuongorora kuwanda kwesimba re cellulose ether gel.

Mazwi akakosha: jelly; cellulose ether gel; simba; nzira

0.Nhanganyaya

Polymer jelly-based profile control agents inonyanya kushandiswa muoirifield water plugging uye profil control. Nekudaro, mumakore achangopfuura, iyo tembiricha-inonzwa uye thermally reversible gel cellulose ether plugging uye control system yave zvishoma nezvishoma yave nzvimbo yekutsvagisa yekuvharira mvura uye kutonga kweprofile mumadhiza emafuta anorema. . Iyo gel simba re cellulose ether ndechimwe chezvinonyanya kukosha zviratidzo zvekugadzira plugging, asi hapana yunifomu chiyero chemaitiro ayo ekuedza simba. Nzira dzinowanzoshandiswa kuongorora simba rejelly, senzira yekucherechedza - nzira yakananga uye yehupfumi yekuedza simba rejelly, shandisa jelly simba rekodhi tafura yekutonga chiyero chesimba rejeri kuti riyerwe; nzira yekutenderera - zviridzwa zvinowanzoshandiswa Brookfield viscometer uye rheometer, tembiricha yeBrookfield viscometer test sample inogumira mukati me90.°C; breakthrough vacuum method - kana mhepo inoshandiswa kupaza gel, kuverenga kwepamusoro kwegeji yekumanikidza kunomiririra simba rejeri. Iyo gelling mechanism yejelly ndeyekuwedzera muchinjiko-inobatanidza mumiriri kune iyo polymer mhinduro. Muchinjikwa-inobatanidza mumiririri uye cheni yepolymer yakabatanidzwa nemakemikari zvisungo kuti iite nzvimbo yetiweki chimiro, uye chikamu chemvura chakaputirwa mairi, kuitira kuti iyo yese system irasikirwe nemvura, uyezve inoshandura Kune jelly, iyi nzira haidzokerike uye. ikemikari shanduko. Iyo gel mechanism ye cellulose ether ndeyokuti pakudzika kwakadzika, macromolecules e-cellulose ether akakomberedzwa nemamorekuru maduku emvura kuburikidza nehydrogen bond kuti aite mhinduro ine mvura. Sezvo kutonhora kwechigadziro kuchikwira, mabhondi ehydrogen anoparadzwa, uye mamorekuru makuru e cellulose ether Nyika iyo mamolekemu anouya pamwe chete kuburikidza nekubatana kwemapoka e-hydrophobic kuti aite gel kuchinja kwemuviri. Kunyange zvazvo gelation mechanism yezviviri izvi yakasiyana, chitarisiko chine mamiriro akafanana, ndiko kuti, immobile semi-solid state inoumbwa munzvimbo nhatu-dimensional. Kana iyo nzira yekuongorora yesimba rejelly yakakodzera kuongorora kusimba kwe cellulose ether gel inoda kuongororwa uye kuongororwa kwekuyedza. Mupepa iri, nzira nhatu dzechinyakare dzinoshandiswa kuongorora kusimba kweselulosi ether gels: nzira yekutarisa, nzira yekutenderera uye nzira yekubura vacuum, uye nzira yekumanikidza yakanaka inoumbwa pahwaro uhwu.

1. Chikamu chekuedza

1.1 Midziyo huru yekuyedza uye zviridzwa

Magetsi anogara achipisa tembiricha yemvura yekugezera, DZKW-S-6, Beijing Yongguangming Medical Instrument Co., Ltd.; tembiricha yepamusoro uye yakanyanya kudzvanywa rheometer, MARS-III, Germany HAAKE kambani; inotenderera mvura yakawanda-chinangwa vacuum pombi, SHB-III, Gongyi Red Instrument Equipment Co., Ltd.; sensor, DP1701-EL1D1G, Baoji Best Control Technology Co., Ltd.; kumanikidzwa kutora hurongwa, Shandong Zhongshi Dashiyi Technology Co., Ltd.; colorimetric chubhu, 100 mL, Tianjin Tianke Glass Instrument Manufacturing Co., Ltd.; yakakwirira tembiricha inodzivirira girazi bhodhoro , 120 mL, Schott Glass Works, Germany; high-purity nitrogen, Tianjin Gaochuang Baolan Gas Co., Ltd.

1.2 Kuedza sampuli uye kugadzirira

Hydroxypropyl methylcellulose ether, 60RT400, Taian Ruitai Cellulose Co., Ltd.; nyungudutsa 2g, 3g uye 4g yehydroxypropylmethylcellulose ether mu50 mL mvura inopisa pa80℃, funganisa zvakanaka uye uwedzere 25℃ye 50 mL mvura inotonhora, sampuli dzakanyungudutswa zvachose kuti dzigadzire cellulose ether solutions ine concentrations ye 0.02g/mL, 0.03g/mL uye 0.04g/mL zvichiteerana.

1.3 Kuedza nzira ye cellulose ether gel simba rekuyedza

(1) Kuedzwa nenzira yekucherechedza. Hunhu hwemabhodhoro egirazi akareba-mumuromo wepamusoro-kupisa anoshandiswa mukuyedza ndeye 120mL, uye huwandu hweselulosi ether mhinduro i50mL. Isa iyo yakagadziriswa cellulose ether mhinduro ine concents ye 0.02g/mL, 0.03g/mL uye 0.04g/mL mubhodhoro regirazi rinopisa tembiricha, ritenderedze patembiricha dzakasiyana, uye enzanisa matatu ari pamusoro apa akasiyana zvichienderana neiyo gel simba rekodhi. Kusimba kwegelling ye cellulose ether aqueous solution yakaedzwa.

(2) Yakaedzwa nenzira yekutenderera. Chiyero chekuedza chinoshandiswa muchiyedzo ichi ndeyepamusoro-tembiricha uye yakakwirira-kumanikidza rheometer. Iyo cellulose ether aqueous solution ine concentration ye2% inosarudzwa uye inoiswa mudhiramu yekuongororwa. Nhamba yekudziya i5℃/ 10 min, shear rate ndeye 50 s-1, uye nguva yekuedza ndeye 1 min. , The kudziyisa range 40～110℃.

(3) Kuedzwa kuburikidza nekubudirira vacuum nzira. Batanidza machubhu e colorimetric ane gel, vhura pombi yevacuum, uye uverenge kuverenga kwepamusoro kwegeji yekumanikidza kana mhepo ikapaza nejeri. Sample imwe neimwe inoshandiswa katatu kuti iwane avhareji kukosha.

(4) Edzai nenzira yakanaka yekumanikidza. Zvinoenderana nemusimboti wekubudirira vacuum dhigirii nzira, isu takavandudza iyi nzira yekuyedza uye takatora nzira yezvakanaka kudzvanywa. Batanidza colorimetric machubhu ane gel, uye shandisa dhizaini yekutora system kuyedza kusimba kwe cellulose ether gel. Huwandu hwegel hunoshandiswa mukuyedza i50mL, huwandu hwe colorimetric chubhu i100mL, dhayamita yemukati ndeye 3cm, dhayamita yemukati yedenderedzwa chubhu inopinzwa mugel i1cm, uye kudzika kwekuisa i3cm. Batidza switch ye nitrogen cylinder zvishoma nezvishoma. Kana iyo yakaratidza kudzvanywa data inodonha kamwe kamwe uye zvakanyanya, tora iyo yepamusoro poindi seyakakosha simba rinodiwa kupaza gel. Sample imwe neimwe inoshandiswa katatu kuti iwane avhareji kukosha.

2. Migumisiro yekuedza uye nhaurirano

2.1 Iko kushandiswa kweiyo nzira yekutarisa yekuyedza simba regel re cellulose ether

Somugumisiro wekuongorora simba rejeri re cellulose ether nekucherechedza, kutora sarudzo ye cellulose ether ine mutsara we 0.02 g / mL semuenzaniso, zvinogona kuzivikanwa kuti simba resimba A kana tembiricha iri 65.°C, uye simba rinotanga kuwedzera sezvo tembiricha inowedzera, kana tembiricha yasvika 75℃, inopa gel mamiriro, giredhi resimba rinoshanduka kubva B kuenda kuD, uye kana tembiricha yakwira kusvika 120.℃, giredhi resimba rinova F. Zvinogona kuonekwa kuti mugumisiro wekuongorora weiyi nzira yekuongorora inongoratidzira simba rejeri, asi haigoni kushandisa data kuratidza simba rakananga rejeri, kureva kuti, imhando asi kwete. quantitative. Kubatsira kweiyi nzira ndeyokuti kushanda kuri nyore uye kunzwisisika, uye gel rine simba rinodiwa rinogona kuongororwa zvakachipa nenzira iyi.

2.2 Kushandiswa kweiyo nzira yekutenderera yekuyedza simba regel re cellulose ether

Apo mhinduro yacho inopisa kusvika ku80°C, viscosity yemhinduro ndeye 61 mPa·s, ipapo viscosity inowedzera nekukurumidza, uye inosvika pakukosha kwe46 790 mPa.·s pa100°C, uye ipapo simba rinoderera. Izvi hazvienderani nechakamboonekwa chiitiko chekuti viscosity yehydroxypropyl methylcellulose ether aqueous solution inotanga kuwedzera pa65.°C, uye gels anoonekwa anosvika makumi manomwe neshanu°C uye simba rinoramba richiwedzera. Chikonzero chechiitiko ichi ndechekuti gel yakaputsika nekuda kwekutenderera kwe rotor pakuedza gel simba re cellulose ether, zvichiita kuti data rive risina kururama resimba rejeri pane kutonhora kunotevera. Nokudaro, nzira iyi haina kukodzera kuongorora simba re cellulose ether gels.

2.3 Kushanda kwenzira yekuburitsa vacuum yekuyedza kusimba kwejeri re cellulose ether

Mhedzisiro yekuedza ye cellulose ether gel simba yakaongororwa neiyo breakthrough vacuum nzira. Iyi nzira haisanganisi kutenderera kwe rotor, saka dambudziko rekuveura colloidal uye kuputsa kunokonzerwa nekutenderera kwe rotor kunogona kudziviswa. Kubva pamigumisiro yekuedza iri pamusoro, inogona kuonekwa kuti nzira iyi inogona kuedza zvakanyanya simba rejeri. Kana tembiricha iri 100°C, simba re cellulose ether gel ine mutsara we 4% yakakura kudarika 0.1 MPa (yakanyanya vacuum degree), uye simba harigoni kuyerwa kupfuura 0.1 MPa. Simba rejeri, kureva, muganho wepamusoro wejeri simba rakaedzwa nenzira iyi 0.1 MPa. Mukuedza uku, simba re cellulose ether gel rakakura kudarika 0.1 MPa, saka nzira iyi haina kukodzera kuongorora simba re cellulose ether gel.

2.4 Iko kushandiswa kweiyo yakanaka yekumanikidza nzira yekuyedza iyo gel simba re cellulose ether

Iyo yakanaka yekumanikidza nzira yakashandiswa kuongorora mhedzisiro yekuyedza ye cellulose ether gel simba. Zvinogona kuoneka kuti nzira iyi inogona quantitatively kuedza gel nesimba pamusoro 0.1 MPa. Iyo data acquisition system inoshandiswa muchiyedzo inoita kuti zviedzo zvinyatsojeka kupfuura data rekuverenga rekugadzira mune vacuum degree nzira.

3. Mhedziso

Iyo gel simba re cellulose ether yakaratidza kuwedzera kwese kuwedzera maitiro nekuwedzera kwekushisa. Iyo nzira yekutenderera uye nzira yekutsvaira vacuum haina kukodzera kuona kusimba kwe cellulose ether gel. Iyo nzira yekutarisa inogona chete kuyera kusimba kweiyo cellulose ether gel, uye ichangobva kuwedzerwa yakanaka yekumanikidza nzira inogona quantitatively kuyedza simba re cellulose ether gel.