Lefapheng la ho cheka, liretse tse fapa-fapaneng (kapa metsi a ho phunya) ke lisebelisoa tsa bohlokoa ho netefatsa tsoelo-pele e ntle ea mokhoa oa ho cheka. Haholo-holo libakeng tse rarahaneng tsa jeoloji, ho khethoa le ho lokisoa ha seretse sa ho cheka ho na le phello ea bohlokoa ho sebetsa hantle, polokeho le taolo ea litšenyehelo tsa ts'ebetso ea ho cheka. tshusumetso e tobileng.Hydroxyethyl Cellulose (HEC)ke motsoako oa tlhaho oa selulose o bapalang karolo ea bohlokoa joalo ka tlatsetso ho cheka seretse. E na le botenya bo botle, rheology, thepa e khahlanong le tšilafalo le e phahameng e bolokehileng tikolohong, e sebelisoa haholo lits'ebetsong tsa mokelikeli oa ho cheka.
1. Litšobotsi le sebopeho sa lik'hemik'hale tsa HEC
HEC ke motsoako oa polima oa tlhaho o qhibilihang, o se nang chefo le o se nang kotsi. Selulose e fetotsoeng ka lik'hemik'hale e hlahisa lihlopha tsa hydroxyethyl ka har'a sebopeho sa eona sa molek'hule, kahoo e etsa phello e matla ea ho teteana le ho qhibiliha ha metsi. Tšebeliso ea HEC ho maro a ho cheka haholo-holo e itšetlehile ka lihlopha tsa hydrophilic (lihlopha tsa hydroxyl le hydroxyethyl) ka har'a ketane ea eona ea limolek'hule. Lihlopha tsena li ka theha marang-rang a matle a hydrogen bonding ka tharollo ea metsi, e fanang ka tharollo ea li-viscosity-e eketsang thepa. .
2. Karolo e ka sehloohong ea HEC ho cheka seretse
Phello ea moemeli e teteaneng
E 'ngoe ea mesebetsi ea bohlokoa ka ho fetisisa ea HEC ho maro a ho cheka metsi ke ho ba motenya. Litšobotsi tse phahameng tsa viscosity tsa HEC li ka eketsa haholo ponahalo ea mokelikeli oa ho cheka, ho etsa bonnete ba hore mokelikeli oa ho phunya o na le matla a lekaneng a ho tšehetsa ho thusa ho jara li-cuttings le likaroloana tsa lehlabathe le ho tsamaisa litšila tsa ho cheka ho tloha tlaase ho seliba ho ea holimo. Ho eketsa viscosity ea mokelikeli oa ho cheka ho boetse ho thusa ho fokotsa likhohlano leboteng le ka hare la tube ea ho phunya, ka hona ho ntlafatsa katleho ea ho cheka. Ho feta moo, thepa e matla ea HEC e matla le viscosity e tsitsitseng e etsa hore e khone ho finyella liphello tse ntle tsa ho teteka ha maemo a tlaase, ho fokotsa litšenyehelo tsa ho cheka ka katleho.
Mosebetsi oa ho laola tahlehelo ea mokelikeli
Nakong ea ts'ebetso ea ho phunya, ho laola tahlehelo ea mokelikeli oa mokelikeli oa ho phunya ke taba ea bohlokoa. Taolo ea tahlehelo ea mokelikeli ke ea bohlokoa ho boloka botsitso ba lerako la seliba ho thibela ho kenella ho feteletseng ha metsi a seretse ho thehoa, ho baka ho putlama ha sebopeho kapa ho se tsitse ha lerako la seliba. Ka lebaka la thepa ea eona e ntle ea hydration, HEC e ka etsa lera le teteaneng la filthara kaka leboteng la seliba, e fokotsa sekhahla sa ho kenella ha metsi ka har'a mokelikeli oa ho phunya ho thehoa, ka tsela eo e laola ka katleho tahlehelo ea mokelikeli oa seretse. Kaka ena ea filthara ha e na feela toughness e ntle le matla, empa e ka boela ea ikamahanya le likarolo tse fapaneng tsa jeoloji, kahoo e boloka botsitso ba lebota la seliba lilibeng tse tebileng le maemo a phahameng a mocheso.
Liemeli tsa Rheological le taolo ea phallo
HEC e boetse e phetha karolo ea bohlokoa ho laola ho phalla ha metsi ha ho cheka seretse. Rheology ea mokelikeli oa ho cheka e bua ka deformation ea eona kapa bokhoni ba ho phalla tlas'a ketso ea khatello ea ho kuta. Ha rheology e le betere, mokelikeli oa ho cheka o nepahetse haholoanyane ho fetisa khatello le ho jara li-cuttings nakong ea ho cheka. HEC e ka fetola thepa ea rheological ea mokelikeli oa ho cheka ka ho fetola viscosity le mokelikeli oa eona, kahoo e ntlafatsa phello ea ho hlapolla ha seretse seretse, ho lumella seretse ho phalla hantle ka phala ea ho phunya le ho ntlafatsa phello ea lubrication ea seretse. Haholo-holo ts'ebetsong ea ho cheka liliba tse tebileng le liliba tse rapameng, phello ea phetoho ea rheological ea HEC ke ea bohlokoa ka ho khetheha.
Tlhoekiso e ntlafalitsoeng ea seliba
Phello e teteaneng ea HEC ha e thuse feela bokhoni ba seretse sa ho cheka ho jara le ho emisa likheo tsa ho cheka, empa hape e thusa ho ntlafatsa bohloeki ba seliba. Nakong ea ts'ebetso ea ho cheka, palo e kholo ea li-cuttings e tla hlahisoa selibeng. Haeba li-cuttings tsena li ke ke tsa etsoa ka katleho ke seretse, li ka 'na tsa bokelloa ka tlaase ho seliba' me tsa etsa li-sediments tse ka tlaase-tlase, kahoo li eketsa ho hanyetsa ha li-drill le ho ama tsoelo-pele ea ho cheka. Ka lebaka la thepa ea eona e matla ea ho teteana, HEC e ka thusa seretse ho emisa le ho tsamaisa likheo tsa ho cheka ka mokhoa o atlehileng haholoanyane, ka tsela eo ho netefatsa bohloeki ba seliba le ho thibela ho bokellana ha sediments.
Phello e khahlanong le tšilafalo
Nakong ea ts'ebetso ea ho cheka, seretse se atisa ho silafatsoa ke liminerale tse sa tšoaneng le maro a sebopeho, e leng se bakang ho hlōleha ha seretse. Thepa ea HEC e khahlanong le tšilafalo ke molemo o mong o moholo. HEC e tsitsitse tlas'a maemo a fapaneng a pH 'me e na le matla a matla a ho thibela tšitiso ho li-ion tse ngata tse kang calcium le magnesium, e leng se lumellang ho boloka viscosity e tsitsitseng le liphello tse teteaneng ka mekhoa e nang le liminerale, ka hona e fokotsa Sena se fokotsa kotsi ea ho hloleha ha mokelikeli oa ho phunya. tikoloho e silafetseng.
E na le tikoloho ebile e ka senyeha
Ho tlohaHECke thepa ea tlhaho ea polymer, e na le biodegradability e ntle le botsoalle ba tikoloho. Boemong ba litlhoko tsa ts'ireletso ea tikoloho butle-butle, litšobotsi tsa biodegradability tsa HEC li etsa hore e be karolo ea bohlokoa ea mekhoa ea metsi ea ho cheka tikoloho. HEC e ke ke ea baka tšilafalo e kholo tikolohong nakong ea tšebeliso, 'me e ke ke ea e-ba le liphello tse mpe mobung le metsing a ka tlas'a lefatše ka mor'a ho senyeha. Ka hona, ke tlatsetso ea boleng bo holimo e silafatsang tikoloho.
3. Liphephetso le nts'etsopele ea nako e tlang lits'ebetsong tsa HEC
Le hoja HEC e na le melemo e sa tšoaneng ea ho cheka seretse, ts'ebetso ea eona tlas'a maemo a feteletseng a ho cheka a kang mocheso o phahameng le khatello e hloka ho ntlafatsoa le ho feta. Ka mohlala, HEC e ka 'na ea e-ba le ho senyeha ha mocheso ka mocheso o phahameng, ho etsa hore seretse se lahleheloe ke viscosity le liphello tse teteaneng. Ka hona, e le ho sebetsa libakeng tse rarahaneng le tse feteletseng tsa ho cheka, lipatlisiso lilemong tsa morao tjena li qalile ho tsepamisa maikutlo ho fetola HEC ho ntlafatsa botsitso ba mocheso le ho hanyetsa khatello e phahameng. Ka mohlala, ka ho hlahisa li-cross-linking agents, lihlopha tse hanyetsanang le mocheso o phahameng le mekhoa e meng ea phetoho ea lik'hemik'hale ka har'a ketane ea limolek'hule tsa HEC, ts'ebetso ea HEC tlas'a maemo a feteletseng e ka ntlafatsoa le ho ikamahanya le litlhoko tsa libaka tse boima haholo tsa jeoloji.
E le karolo ea bohlokoa ea seretse sa ho cheka, HEC e phetha karolo ea bohlokoa ho boenjiniere ba ho cheka ka lebaka la ho teteana ha eona, ho thibela ho hloekisa, ho fetola rheological, ho thibela tšilafalo le thepa ea botsoalle ba tikoloho. Nakong e tlang, ha botebo ba ho cheka le ho rarahana ho eketseha, litlhoko tsa ts'ebetso bakeng sa HEC le tsona li tla eketseha. Ka ho ntlafatsa le ho fetola HEC, sebaka sa ts'ebeliso ea eona ho maro a ho cheka a tla atolosoa ho fihlela litlhoko tsa tikoloho e thata ea ho cheka. .
Nako ea poso: Nov-14-2024