Carboxymethyl cellulose (CMC) yog cov tshuaj tiv thaiv polymer Hauv cov kua dej drilling, carboxymethyl cellulose plays lub luag haujlwm tseem ceeb ua cov tuab tuab thiab tawv tawv. Nws txhim kho cov kev ua haujlwm tau zoo thiab kev nyab xeeb ntawm kev ua haujlwm ntawm viscosity thiab rheological cov khoom siv los nag.
1. Cov khoom yooj yim ntawm Carboxymethyl cellulose
Cov qauv tshuaj lom neeg: cov qauv molecular ntawm Carboxymethyl cellulose muaj cov carboxymethyl (-ch2Cooh them thiab muaj qee cov dej solubility thiab muaj qee cov dej solubility thiab muaj qee qhov dej solubility thiab hydrophilicity. CMC tau txais los ntawm Ethhermate ntuj cellulose molecules thiab hloov ib feem ntawm hydroxyl (Oh) nrog cov pawg carboxymethyl.
Dej solubility: carboxymethyl cellulose muaj cov solubility siab hauv dej thiab ua cov tshuaj uas muaj kuab cloloidal. Cov cuab yeej no ua rau nws ib qho tuab zoo tshaj hauv cov kua dej drilling, uas tuaj yeem txhim kho lub peev xwm ncua kev kawm tau thiab rheological cov khoom siv ntawm cov kua dej drilling.
Kho tau: Cmc cov kev hnyav molecular, qib ntawm hloov chaw, solubility thiab lwm yam khoom tuaj yeem hloov kho raws li kev thov. Qhov no tso cai rau nws xaiv thiab ua kom zoo raws li qhov xav tau tiag tiag hauv ntau hom kev hnyiab.
2. Lub luag haujlwm ntawm Carboxymethyl cellulose hauv cov kua dej drilling
Thickening cov nyhuv: carboxymethyl cellulose yog siv los ua cov tuab tuab hauv cov kua dej ua kom zoo nce viscosity ntawm cov kua. Viscosity ntau dua pab kom tshem tawm thiab thauj cov ntawv txiav, txo cov ntawv tso tawm hauv cov kua dej hauv lub cev. Tsis tas li ntawd, cov nyhuv tuab ntawm CMC tuaj yeem txhim kho cov khoom muaj peev xwm ntawm cov kua dej thiab ua kom muaj cov khoom siv khiav dej tau yooj yim hauv qab qhov kub thiab txias.
Rheological cov cuab yeej kho kom zoo: lub rheological cov khoom ntawm cov dej drilling ncaj qha rau kev ua haujlwm tau zoo thiab kev nyab xeeb ntawm kev ua haujlwm drilling. CMC tuaj yeem hloov kho cov rheological curve kom nws muaj cov txiaj ntsig txaus siab thiab viscosity los daws teeb meem sib txawv. Nws cov kev ntxiv tuaj yeem txhim kho cov yam ntxwv ntws ntawm cov kua dej tsis muaj zog thaum ntsib kev kub ntxhov lossis kev sib tw geological hloov tshiab.
Inhibit cov theem dej nag: carboxymethyl cellulose tuaj yeem ua kom muaj zog ntawm cov kua dej nag thiab cov kev ruaj ntseg ntawm cov kua dej drilling. Thaum lub sij hawm drilling, khoom theem nag lossis dej nag (xws li cuttings, av nkos, thiab lwm yam) yuav nkag rau hauv cov kua drilling raws li laum me ntsis tig. CMC pab kom cov khoom siv tsis raug tshem tawm thiab tiv thaiv nag lossis tsis pom kev ntawm cov kua, yog li tswj cov kua dej ntawm cov kua dej.
Txhim kho cov fluidity thiab txo cov ntxhiab: Hauv cov dej tob lossis qhov kev sib ntxiv ntawm cov dej ntws, txo cov kev sib txhuam ntawm cov kua dej, thiab txhim kho drilling efficiency. Tib lub sijhawm, CMC tuaj yeem txo cov evaporation tsis dhau ntawm cov dr drilling thiab txo cov kev sib txhuam ntawm lub laum me me, txo hluav taws xob siv hauv kev khiav haujlwm hauv drilling.
Lubrication: CMC tseem tuaj yeem ua si rau qee lubricating lub luag hauj lwm, txo cov kev sib txhuam ntawm lub laum me ntsis thiab phab ntsa zoo, thiab txo cov khoom hnav, thiab txo cov khoom hnav. Tshwj xeeb tshaj yog nyob rau hauv kev kub siab thiab kev kub siab thiab complex geological mob, lubrication nyhuv yog ib qho tseem ceeb.
Zoo phab ntsa stability: CMC tuaj yeem txhim kho cov nplaum ntawm cov kua dej drilling, kom cov zaj duab xis nyias yog tsim nyob rau saum npoo ntawm phab ntsa kom tiv thaiv tau phab ntsa zoo los ntawm kev tsaus muag. Tshwj xeeb tshaj yog nyob rau hauv cov pob zeb muag muag, cov av nplaum txheej lossis cov kab ke nyuaj uas tau vau, lub luag haujlwm ntawm CMC tshwj xeeb yog qhov tseem ceeb.
3. Daim ntawv thov nyhuv ntawm Carboxymethyl cellulose hauv cov kua dej drilling
Txhim kho cov tshuaj haum Drilling
Txhim kho drilling kev nyab xeeb: kev sib ntxiv ntawm cmc pab kom ruaj khov phab ntsa, tiv thaiv kom muaj kev nyab xeeb phab ntsa vau, thiab txo cov kev hnav ris tsho hauv chav dej. Nyob rau tib lub sijhawm, nws cov nyhuv thickening tuaj yeem txhim kho lub peev xwm nqa tau ntawm cov kua dej khov thiab txo cov kev phom sij thiab kev nyab xeeb thiab kev nyab xeeb ntawm cov kua dej tsis zoo.
Kev Siv Feem Dav: Carboxymethyl cellulose tuaj yeem siv tau rau hauv ntau hom dej ua kua, suav nrog dej tshuab, roj raws li drilling dej thiab hluavtaws drilling cov dej. Qhov no ua rau nws tau siv tau dav hauv ib cheeb tsam sib txawv.
Raws li cov ntaub ntawv zoo tshaj plaws, stabilizer thiab rheology kho tshuab, daim ntawv thov ntawm carboxymethyl cellulose hauv cov dej khov yog qhov tseem ceeb ntawm qhov tseem ceeb. Nws tuaj yeem nce viscosity ntawm drilling kua, txhim kho kev sib txhuam, kom tau kev sib txhuam zoo, kom tau kev sib txhuam zoo dua thiab nyab xeeb rau kev ua haujlwm drilling. Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev tsim kho cov khoom siv drilling, daim ntawv thov cov kev cia siab ntawm cov kua roj cellulose hauv cov kua dej drilling yuav dav.
Lub sijhawm Post: Feb-15-2025