Hydroxyethyl cellulose (HEC) ke polima ea bohlokoa e qhibilihang ka metsing e bapalang karolo ea bohlokoa ho cheka oli. Joaloka motsoako oa selulose o nang le thepa e ikhethang ea 'mele le lik'hemik'hale, HEC e sebelisoa haholo mererong ea ho cheka sebakeng sa oli le ho hlahisa oli.
1. Lintho tsa motheo tsa hydroxyethyl cellulose (HEC)
Hydroxyethyl cellulose (HEC) ke motsoako o se nang ionic o qhibilihang ka metsing o fumanoang ka ho fetola lik'hemik'hale tsa cellulose ea tlhaho. Ka ho hlahisa lihlopha tsa hydroxyethyl ka har'a sebopeho sa molek'hule sa cellulose, HEC e na le hydrophilicity e matla, kahoo e ka qhibiliha ka metsing ho etsa tharollo ea colloidal ka viscosity e itseng. HEC e na le mohaho o tsitsitseng oa limolek'hule, ho hanyetsa mocheso o matla, lik'hemik'hale tse batlang li sa sebetse, 'me ha li na chefo, ha li na monko, li na le biocompatibility e ntle. Litšobotsi tsena li etsa hore HEC e be tlatsetso e loketseng ea lik'hemik'hale ho cheka oli.
2. Mokhoa oa HEC ho cheka oli
2.1 Ho laola viscosity ea mokelikeli oa ho cheka
Nakong ea ho cheka oli, mokelikeli oa ho phunya (o tsejoang hape e le seretse sa ho cheka) ke mokelikeli oa bohlokoa o sebetsang, haholo-holo o sebelisetsoang ho pholisa le ho tlotsa karolo ea ho phunya, ho jara likhechana, ho tsitsisa lebota la seliba le ho thibela ho phatloha. HEC, e le motenya le rheology modifier, e ka ntlafatsa phello ea eona ea ho sebetsa ka ho fetola li-viscosity le thepa ea rheological ea mokelikeli oa ho phunya. Ka mor'a hore HEC e qhibilihe ka har'a mokelikeli oa ho phunya, e etsa sebopeho sa marang-rang a mararo, e leng se ntlafatsang haholo ponahalo ea mokelikeli oa ho phunya, kahoo e matlafatsa matla a ho tsamaisa lehlabathe la mokelikeli oa ho cheka, ho etsa bonnete ba hore li-cuttings li ka ntšoa hantle. tlase ho seliba, le ho thibela ho thiba ha liliba.
2.2 Ho tsitsa ha lerako la seliba le thibelo ea ho putlama ha seliba
Hantle botsitso ba lebota ke taba e mahlonoko haholo boenjiniere ba ho cheka. Ka lebaka la ho rarahana ha sebopeho sa stratum se ka tlas'a lefatše le phapang ea khatello e hlahisoang nakong ea ho cheka, lerako la seliba hangata le atisa ho oa kapa ho se tsitse. Tšebeliso ea HEC ho mokelikeli oa ho cheka e ka ntlafatsa ka katleho bokhoni ba ho laola ho hloekisoa ha mokelikeli oa ho phunya, ho fokotsa tahlehelo ea filtration ea mokelikeli oa ho phunya ho thehoa, ebe o theha kaka e teteaneng ea seretse, ka katleho ho koala mapetsong a manyenyane a lebota la seliba, le ho thibela hantle lerako hore le se ke la tsitsa. Phello ena ke ea bohlokoa haholo bakeng sa ho boloka botšepehi ba lerako la seliba le ho thibela ho putlama ha hantle, haholo-holo ka libopeho tse nang le matla a ho phunyeletsa.
2.3 Tsamaiso e tlase e tiileng ea mekhahlelo le melemo ea tikoloho
Palo e kholo ea likaroloana tse tiileng li atisa ho eketsoa tsamaisong ea mokelikeli o tloaelehileng oa ho cheka ho ntlafatsa viscosity le botsitso ba mokelikeli oa ho phunya. Leha ho le joalo, likaroloana tse joalo tse tiileng li tloaetse ho roala lisebelisoa tsa ho cheka 'me li ka baka tšilafalo ea letamo tlhahisong e latelang ea liliba tsa oli. Joaloka motenya o sebetsang hantle, HEC e ka boloka li-viscosity tse loketseng le thepa ea rheological ea mokelikeli oa ho cheka tlas'a maemo a tlaase a tiileng, e fokotsa ho senyeha ha lisebelisoa, le ho fokotsa tšenyo ea letamo. Ho feta moo, HEC e na le biodegradability e ntle mme e ke ke ea baka tšilafalo ea nako e telele tikolohong. Ka hona, ka litlhoko tse ntseng li eketseha tsa ts'ireletso ea tikoloho kajeno, melemo ea ts'ebeliso ea HEC e hlakile haholoanyane.
3. Melemo ea HEC ho cheka oli
3.1 Ho qhibiliha ha metsi hantle le phello e teteaneng
HEC, e le thepa ea polymer e qhibilihang ka metsing, e na le ho qhibiliha ha metsi tlas'a maemo a fapaneng a boleng ba metsi (joaloka metsi a hloekileng, metsi a letsoai, joalo-joalo). Sena se nolofalletsa HEC hore e sebelisoe libakeng tse fapaneng tse rarahaneng tsa jeoloji, haholo-holo libakeng tse nang le letsoai le phahameng, 'me e ntse e ka boloka ts'ebetso e ntle ea ho teteana. Phello ea eona e matla ke ea bohlokoa, e ka ntlafatsang ka katleho thepa ea rheological ea maro a ho cheka, ho fokotsa bothata ba ho beha li-cuttings, le ho ntlafatsa bokhoni ba ho cheka.
3.2 Mocheso o motle haholo le ho hanyetsa letsoai
Ha ho cheka seliba se tebileng le se tebileng haholo, mocheso oa sebopeho le khatello li phahame, 'me mokelikeli oa ho phunya o ameha habonolo ke mocheso o phahameng le khatello e phahameng' me o lahleheloa ke ts'ebetso ea oona ea pele. HEC e na le mohaho o tsitsitseng oa limolek'hule 'me e ka boloka viscosity le thepa ea rheological ka mocheso o phahameng le likhatello. Ho phaella moo, libakeng tse nang le letsoai le phahameng, HEC e ntse e ka boloka phello e ntle ea ho thibela metsi ho thibela mokelikeli oa ho phunya hore o se ke oa fokotseha kapa oa senyeha ka lebaka la ho kena-kenana le ion. Ka hona, HEC e na le mocheso o babatsehang le ho hanyetsa letsoai tlas'a maemo a thata a jeoloji 'me e sebelisoa haholo lilibeng tse tebileng le merero e thata ea ho cheka.
3.3 Ts'ebetso e nepahetseng ea ho tlotsa
Mathata a likhohlano nakong ea ho cheka le ona ke ntlha ea bohlokoa e amang katleho ea ho cheka. E le e 'ngoe ea litlolo tsa mokelikeli oa ho cheka, HEC e ka fokotsa haholo khohlano pakeng tsa lisebelisoa tsa ho phunya le mabota a seliba, ea fokotsa ho roala ha lisebelisoa, le ho lelefatsa bophelo ba ts'ebeletso ea lisebelisoa tsa ho cheka. Tšobotsi ena e hlahella ka ho khetheha lilibeng tse tšekaletseng, liliba tse sekametseng le mefuta e meng ea liliba, e thusang ho fokotsa ketsahalo ea ho hlōleha ha metsi le ho ntlafatsa katleho ea ts'ebetso ka kakaretso.
4. Tšebeliso e sebetsang le litemoso tsa HEC
4.1 Mokhoa oa ho noa le ho laola mahloriso
Mokhoa oa dosing oa HEC o ama ka kotloloho phello ea eona ea ho hasana le ho qhibiliha ha mokelikeli oa ho cheka. Hangata, HEC e lokela ho kenngoa butle-butle ho mokelikeli oa ho cheka tlas'a maemo a susumetsang ho etsa bonnete ba hore o ka qhibiliha ka ho lekana le ho qoba ho kopana. Ka nako e ts'oanang, ts'ebeliso ea ts'ebeliso ea HEC e hloka ho laoloa ka mokhoa o utloahalang ho latela maemo a sebopeho, litlhoko tsa ts'ebetso ea mokelikeli oa ho cheka, joalo-joalo. Ho ba le khatello e phahameng haholo ho ka etsa hore mokelikeli oa ho phunya o be o hlakileng haholo 'me o ama metsi; ha mahloriso a le tlase haholo a ka 'na a se ke a khona ho sebelisa ka botlalo litlamorao tsa eona tse teteaneng le tsa lubrication. Ka hona, ha u sebelisa HEC, e lokela ho ntlafatsoa le ho fetoloa ho latela maemo a sebele.
4.2 Ho lumellana le li-additives tse ling
Lits'ebetsong tsa 'nete tsa mokelikeli oa ho cheka, mefuta e fapaneng ea li-additives tsa lik'hemik'hale hangata li eketsoa ho fihlela mesebetsi e fapaneng. Ka hona, ho lumellana pakeng tsa HEC le li-additives tse ling hape ke ntlha e lokelang ho nkoa. HEC e bonts'a ho lumellana hantle le li-additives tse ngata tse tloaelehileng tsa ho cheka tse kang li-reducers tsa tahlehelo ea mokelikeli, litlolo, li-stabilizers, joalo-joalo, empa tlas'a maemo a itseng, li-additives tse ling li ka ama phello e teteaneng kapa ho qhibiliha ha HEC. Ka hona, ha ho etsoa moralo, hoa hlokahala ho nahana ka botlalo ho sebelisana pakeng tsa li-additives tse fapa-fapaneng ho netefatsa botsitso le botsitso ba ts'ebetso ea mokelikeli oa ho cheka.
4.3 Tšireletso ea tikoloho le phekolo ea metsi a litšila
Ka melao ea ts'ireletso ea tikoloho e ntseng e tsoela pele ka thata, botsoalle ba tikoloho ba maro a chekang bo se bo fumane tlhokomelo butle-butle. E le thepa e nang le biodegradability e ntle, tšebeliso ea HEC e ka fokotsa ka katleho tšilafalo ea maro a ho cheka tikolohong. Leha ho le joalo, ka mor'a hore ho cheka ho phethoe, metsi a litšila a nang le HEC a ntse a lokela ho tšoaroa hantle ho qoba liphello tse mpe tikolohong e potolohileng. Ts'ebetsong ea phekolo ea mokelikeli oa litšila, mekhoa ea phekolo ea saense e kang ho hlaphoheloa ha metsi a litšila le ho senyeha ha maemo a litšila li lokela ho amoheloa hammoho le melao ea sebaka sa tšireletso ea tikoloho le litlhoko tsa theknoloji ho netefatsa hore tšusumetso tikolohong e fokotsehile.
Hydroxyethyl cellulose (HEC) e bapala karolo ea bohlokoa ho cheka oli. Ka ho qhibiliha ha metsi ka mokhoa o babatsehang, ho teteka, mocheso le letsoai ho hanyetsa le phello ea lubrication, e fana ka tharollo e ka tšeptjoang bakeng sa ho ntlafatsa ts'ebetso ea metsi a ho cheka. Tlas'a maemo a rarahaneng a jeoloji le tikoloho e thata ea ts'ebetso, ts'ebeliso ea HEC e ka ntlafatsa ka nepo ts'ebetso ea ho cheka, ea fokotsa ho roala ha lisebelisoa, le ho netefatsa botsitso ba hantle. Ka tsoelo-pele e tsoelang pele ea theknoloji ea indasteri ea oli, menyetla ea ts'ebeliso ea HEC ho cheka oli e tla ba e pharaletseng.
Nako ea poso: Sep-20-2024