Hydroxyethylcellulose (HEC) ke polymer e sa tloaelehang, e qhibilihang ka metsing e tsoang selulose ka letoto la liphetoho tsa lik'hemik'hale. E sebelisoa haholo liindastering tse fapaneng, ho kenyeletsoa indasteri ea oli le khase, e bapala karolo ea bohlokoa ho cheka le ho phethela maro. Boemong bona, HEC e sebetsa e le mofetoleli oa rheology, moemeli oa taolo ea phallo, le tackifier, e thusang ho ntlafatsa katleho le katleho ea ts'ebetso ea oli.
1.Selelekela ho Hydroxyethyl Cellulose (HEC)
Hydroxyethylcellulose e tsoa ho cellulose, polymer ea tlhaho e fumanehang maboteng a lisele tsa semela. Ho kenyelletsoa ha lihlopha tsa hydroxyethyl ka phetoho ea lik'hemik'hale ho ntlafatsa ho qhibiliha ha metsi, ho etsa hore e be motsoako o nang le mefuta e mengata o loketseng mefuta e sa tšoaneng ea lisebelisoa. Ka indasteri ea oli le khase, HEC e nkoa e le ea bohlokoa bakeng sa thepa ea eona ea rheological, botsitso, le ho lumellana le lisebelisoa tse ling tse sebelisoang ho cheka maro.
2. Ts'ebetso ea HEC e amanang le likopo tsa oli ea oli
2.1. Ho qhibiliha ha metsi
Ho qhibiliha ha metsi ha HEC ke tšobotsi ea bohlokoa bakeng sa lits'ebetso tsa eona tsa oli. Motsoako oa metsi oa polymer o etsa hore ho be bonolo ho tsoakana le metsoako e meng ea mokelikeli oa ho cheka le ho netefatsa ho ajoa ka har'a sistimi ea mokelikeli.
2.2. Taolo ea thuto ea mali
E 'ngoe ea mesebetsi ea mantlha ea HEC ka marong a oli ke ho laola rheology. E fetola viscosity ea mokelikeli 'me e fana ka botsitso tlas'a maemo a fapaneng a tlaase. Thepa ena e bohlokoa ho boloka litšobotsi tse hlokahalang tsa phallo ea mokelikeli oa ho phunya nakong eohle ea ho phunya.
2.3. Taolo ea tahlehelo ea metsi
HEC ke moemeli ea sebetsang oa taolo ea tahlehelo ea metsi. E thusa ho thibela tahlehelo ea maro a ho cheka sebopeho ka ho etsa mokoallo o sireletsang maboteng a seliba. Thepa ena e bohlokoa bakeng sa botsitso ba seliba le ho fokotsa tšenyo ea sebopeho.
2.4. Ho tsitsa ha mocheso
Ts'ebetso ea Oilfield hangata e kopana le mefuta e meholo ea mocheso. HEC e tsitsitse ka mocheso 'me e boloka katleho ea eona ho laola rheology le tahlehelo ea mokelikeli esita le tlas'a maemo a phahameng a mocheso a kopanang le ho cheka seliba se tebileng.
2.5. Ho lumellana le li-additives tse ling
HEC e lumellana le mefuta e fapaneng ea li-additives tse atisang ho sebelisoa ha ho cheka maro, joalo ka matsoai, li-surfactants le li-polymer tse ling. Tšebelisano ena e matlafatsa matla a eona a ho feto-fetoha le maemo 'me e lumella hore tsamaiso ea mokelikeli o tloaelehileng oa ho cheka o etsoe ho latela maemo a itseng a seliba.
3. Kopo ka marong a masimo a oli
3.1. Mokelikeli oa ho phunya
Nakong ea ts'ebetso ea ho phunya, HEC e kenngoa ho mokelikeli oa ho phunya ho finyella thepa e ntle ea rheological. E thusa ho laola viscosity ea mokelikeli, ho etsa bonnete ba hore lipalangoang tsa li-drill li ea holimo le ho thibela mathata a ho se tsitse ha wellbore.
3.2. Mokelikeli oa ho qetela
HEC e ka sebelisoa e le moemeli oa ho laola ho hloekisa ha metsi a qeta ho sebelisoa nakong ea ho qeta hantle le ho sebetsa ha mosebetsi. E etsa mokoallo leboteng la seliba, ho thusa ho boloka botsitso ba lebota la seliba le ho thibela tšenyo ea libopeho tse potolohileng.
3.3. Mokelikeli o robehang
Ka hydraulic fracturing, HEC e ka sebelisoa ho fetola thepa ea rheological ea fracturing fluid. E thusa ho emisa le ho tsamaisa ka mokhoa o ts'oanelang, ho kenya letsoho katlehong ea ts'ebetso ea fracturing le ho theha marang-rang a sebetsang a ho robeha.
4. Mehopolo ea ho theha
4.1. Tsepamisa maikutlo
Bongata ba HEC ka mokelikeli oa ho cheka ke parameter ea bohlokoa. E tlameha ho ntlafatsoa ho ipapisitsoe le maemo a itseng a seliba, litlhoko tsa mokelikeli le boteng ba lisebelisoa tse ling. Tšebeliso e feteletseng kapa e sa lekaneng ea ho tsepamisa mohopolo e ka ama ts'ebetso ea mokelikeli.
4.2. Mokhoa oa ho kopanya
Mekhoa e nepahetseng ea ho kopanya e bohlokoa ho etsa bonnete ba ho hasana ho tšoanang ha HEC ka mokelikeli oa ho phunya. Ho kopanya ho sa phethoang ho ka fella ka thepa e sa lekaneng ea mokelikeli, e amang ts'ebetso ea kakaretso ea mokelikeli oa ho phunya.
4.3. Taolo ea boleng
Mehato ea ho laola boleng ke ea bohlokoa bakeng sa tlhahiso le tšebeliso ea HEC lits'ebetsong tsa oli. Teko e matla e tlameha ho etsoa ho netefatsa ts'ebetso ea polymer le ho netefatsa ts'ebetso e ts'oanang.
5. Litlhokomelo tsa tikoloho le polokeho
5.1. Biodegradability
HEC ka kakaretso e nkoa e le ntho e ka senyehang, e leng ntlha ea bohlokoa ho lekola phello ea eona tikolohong. Biodegradability e fokotsa tšusumetso e ka bang teng ea nako e telele ea HEC tikolohong.
5.2. Bophelo bo botle le polokeho
Le hoja HEC e nkoa e sireletsehile bakeng sa ho sebelisoa lits'ebetsong tsa oli, mekhoa e nepahetseng ea ho tšoara e tlameha ho lateloa ho thibela ho pepeseha. The Material Safety Data Sheet (MSDS) e fana ka tlhahisoleseding ea bohlokoa mabapi le ho tšoaroa ka mokhoa o sireletsehileng le tšebeliso ea HEC.
6. Litloaelo le mekhoa ea nako e tlang
Indasteri ea oli le khase e ntse e tsoela pele ho batla mekhoa e mecha ea ho ntlafatsa bokhoni ba ho cheka le ho fokotsa tšusumetso ea tikoloho. Patlisiso e ntseng e tsoela pele e tsepamisitse maikutlo ho nts'etsopele ea li-polymer tse ncha tse nang le thepa e ntlafalitsoeng le ho lekola mekhoa e meng e tšoarellang ho fapana le li-additives tsa mokelikeli oa setso.
7. Qetello
Hydroxyethylcellulose e bapala karolo ea bohlokoa indastering ea oli le khase, haholo ho cheka le ho phethela metsoako ea mokelikeli. Motsoako oa eona o ikhethang oa taolo ea rheology, thibelo ea tahlehelo ea mokelikeli le ho lumellana le li-additives tse ling e etsa hore e be karolo ea bohlokoa ho netefatsa ts'ebetso e atlehileng le e sebetsang ea oli. Ha thekenoloji e ntse e tsoela pele, lipatlisiso tse tsoelang pele le nts'etsopele li ka lebisa ntlafatsong e eketsehileng ea HEC le ho cheka metsoako ea mokelikeli, kahoo ho thusa ho hlahloba ka mokhoa o tsitsitseng le o ikarabellang oa mehloli ea oli le khase.
Nako ea poso: Dec-02-2023