Carboxymethyl cellulose (CMC) yog ib qho polymer molecular siab uas siv dav hauv cov kua dej drilling nrog cov khoom zoo rheological thiab ruaj khov. Nws yog ib qho cellulose hloov kho, feem ntau yog tsim los ntawm kev sib xyaw cellulose nrog chloroacetic acid. Vim nws qhov kev ua tau zoo heev, CMC tau siv dav hauv ntau qhov chaw xws li kev khawb roj, kev khawb av, kev tsim kho thiab kev lag luam zaub mov.
1. Cov Khoom ntawm CMC
Carboxymethyl cellulose yog ib hom hmoov dawb mus rau daj daj uas ua rau cov kua colloidal pob tshab thaum yaj hauv dej. Nws cov qauv tshuaj muaj cov carboxymethyl pawg, uas ua rau nws muaj hydrophilicity thiab lubricity zoo. Tsis tas li ntawd, qhov viscosity ntawm CMC tuaj yeem tswj tau los ntawm kev kho nws qhov hnyav molecular thiab concentration, uas ua rau nws daim ntawv thov hauv cov kua drilling yooj yim heev.
2. Lub luag haujlwm hauv cov kua dej drilling
Thaum lub sijhawm ua haujlwm drilling, kev ua haujlwm ntawm cov kua dej drilling yog qhov tseem ceeb heev. CMC ua lub luag haujlwm tseem ceeb hauv cov kua dej drilling:
Cov Khoom Ua Kom Thickener: CMC tuaj yeem ua rau cov kua dej drilling viscosity nce ntxiv, yog li ua kom lawv muaj peev xwm nqa tau zoo, khaws cov khoom seem uas raug tshem tawm, thiab tiv thaiv kev tso dej tawm.
Rheology modifier: Los ntawm kev kho cov khoom rheological ntawm cov kua drilling, CMC tuaj yeem txhim kho nws cov fluidity kom nws tseem tuaj yeem tswj tau zoo fluidity nyob rau hauv qhov kub thiab txias thiab siab siab.
Tus neeg sawv cev ntsaws: Cov khoom me me CMC tuaj yeem sau cov pob zeb tawg, txo cov kua dej poob thiab txhim kho kev ua haujlwm drilling.
Cov roj nplua nyeem: Qhov ntxiv ntawm CMC tuaj yeem txo qhov kev sib txhuam ntawm lub ntsis laum thiab phab ntsa qhov dej, txo qhov hnav thiab ua kom qhov ceev ntawm kev laum.
3. Cov txiaj ntsig ntawm CMC
Siv carboxymethyl cellulose ua cov kua dej drilling muaj cov txiaj ntsig zoo li nram no:
Ib puag ncig tus phooj ywg: CMC yog cov khoom siv polymer ntuj uas muaj biodegradability zoo thiab muaj kev cuam tshuam me ntsis rau ib puag ncig.
Kev siv nyiaj tsim nyog: Piv nrog rau lwm cov polymers hluavtaws, CMC muaj tus nqi qis dua, kev ua tau zoo heev thiab kev siv nyiaj tsim nyog.
Kev hloov pauv kub thiab salinity: CMC tseem tuaj yeem tswj tau kev ua haujlwm ruaj khov hauv qhov kub thiab txias thiab ntsev ntau thiab hloov kho rau ntau yam geological.
4. Cov piv txwv ntawm daim ntawv thov
Hauv kev siv tiag tiag, ntau lub tuam txhab roj tau siv CMC rau ntau qhov project drilling. Piv txwv li, hauv qee qhov dej kub thiab siab, ntxiv CMC kom txaus tuaj yeem tswj tau qhov rheology ntawm cov av nkos thiab xyuas kom meej tias drilling du. Tsis tas li ntawd, hauv qee qhov kev tsim kho nyuaj, siv CMC ua tus neeg sawv cev tuaj yeem txo qhov poob kua thiab txhim kho kev ua haujlwm drilling.
5. Kev ceev faj
Txawm hais tias CMC muaj ntau yam zoo, cov ntsiab lus hauv qab no yuav tsum tau sau tseg thaum siv:
Kev Sib Piv: Kho qhov ntau ntawm CMC ntxiv raws li qhov xwm txheej tiag tiag. Kev siv ntau dhau yuav ua rau cov kua dej tsawg dua.
Cov xwm txheej khaws cia: Nws yuav tsum khaws cia rau hauv qhov chaw qhuav thiab txias kom tsis txhob muaj dej noo cuam tshuam rau kev ua haujlwm.
Sib tov kom sib npaug: Thaum npaj cov kua dej drilling, xyuas kom meej tias CMC yaj tag kom tsis txhob muaj cov khoom me me sib sau ua ke.
Kev siv cov carboxymethyl cellulose hauv cov kua dej drilling tsis yog tsuas yog txhim kho kev ua haujlwm drilling thiab txo cov nqi, tab sis kuj txhawb kev txhim kho cov thev naus laus zis tiv thaiv ib puag ncig rau qee qhov. Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, qhov kev siv CMC yuav nthuav dav ntxiv, thiab peb tos ntsoov yuav ua lub luag haujlwm loj dua hauv cov haujlwm drilling yav tom ntej.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-05-2024