Kev siv cellulose hauv cov av nkos drilling yog dab tsi?

Cellulose, ib hom carbohydrate uas pom muaj nyob rau hauv cov phab ntsa ntawm cov nroj tsuag, ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, suav nrog cov roj thiab cov roj av. Hauv kev khawb av nkos, cellulose ua haujlwm ntau yam vim nws cov khoom tshwj xeeb thiab cov yam ntxwv.

Cov av nkos drilling, tseem hu ua cov kua drilling, yog ib qho tseem ceeb hauv cov txheej txheem ntawm kev drilling roj thiab cov qhov dej roj. Nws ua haujlwm ntau yam tseem ceeb, suav nrog kev txias thiab lubricating lub laum, nqa cov pob zeb txiav mus rau saum npoo, tswj kev ruaj khov ntawm lub qhov dej, thiab tiv thaiv kev puas tsuaj ntawm cov qauv. Yuav kom ua tiav cov haujlwm no tau zoo, cov av nkos drilling yuav tsum muaj qee yam khoom xws li viscosity, tswj kev poob kua, kev ncua ntawm cov khoom khov, thiab kev sib raug zoo nrog cov xwm txheej downhole.

CelluloseFeem ntau siv rau hauv cov av nkos drilling ua cov khoom siv ntxiv vim nws cov khoom zoo rheological thiab versatility. Ib qho ntawm cov haujlwm tseem ceeb ntawm cellulose hauv cov av nkos drilling yog los muab viscosity thiab rheological tswj. Viscosity yog qhov ntsuas ntawm cov kua dej tsis kam rau ntws, thiab nws yog qhov tseem ceeb hauv kev tswj cov khoom ntws xav tau ntawm cov av nkos drilling. Los ntawm kev ntxiv cellulose, qhov viscosity ntawm cov av nkos tuaj yeem hloov kho kom tau raws li qhov xav tau tshwj xeeb ntawm kev ua haujlwm drilling. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev tswj tus nqi ntawm kev nkag mus, tiv thaiv cov kua dej poob rau hauv kev tsim, thiab nqa cov txiav laum mus rau saum npoo.

cellulose ua haujlwm ua tus viscosifier thiab tus neeg sawv cev tswj kev poob kua tib lub sijhawm. Ua tus viscosifier, nws pab ncua thiab thauj cov txiav thob mus rau saum npoo, tiv thaiv lawv kom tsis txhob poob thiab sib sau ua ke ntawm qab ntawm lub qhov dej. Qhov no ua kom ntseeg tau tias kev ua haujlwm thob zoo thiab txo qhov kev pheej hmoo ntawm cov yeeb nkab daig. Tsis tas li ntawd, cellulose tsim ib lub ncuav mog qab zib nyias nyias, tsis nkag tau rau ntawm phab ntsa ntawm lub qhov dej, uas pab tswj kev poob kua rau hauv cov qauv. Qhov no yog qhov tseem ceeb rau kev tswj hwm kev ruaj khov ntawm lub qhov dej thiab tiv thaiv kev puas tsuaj ntawm cov qauv los ntawm cov kua nkag mus.

Ntxiv rau nws cov khoom siv rheological thiab kua dej tswj kev poob, cellulose kuj muaj cov txiaj ntsig ib puag ncig hauv cov av nkos drilling. Tsis zoo li cov khoom siv ntxiv, cellulose yog biodegradable thiab tus phooj ywg ib puag ncig, ua rau nws yog qhov kev xaiv zoo rau kev ua haujlwm drilling uas cuam tshuam rau ib puag ncig. Nws qhov biodegradability ua kom ntseeg tau tias nws tawg ua tej yam ntuj tso dhau sijhawm, txo qhov cuam tshuam ib puag ncig ntawm cov haujlwm drilling.

Cellulose tuaj yeem siv rau hauv cov av nkos drilling hauv ntau hom, suav nrog cov hmoov cellulose, cellulose fibers, thiab cellulose derivatives xws licarboxymethyl cellulose (CMC)thiabHydroxyethyl Cellulose (HEC)Txhua daim ntawv muaj cov txiaj ntsig thiab kev ua haujlwm tshwj xeeb nyob ntawm qhov xav tau ntawm kev ua haujlwm drilling.

Cov cellulose hmoov feem ntau siv ua tus neeg ua kom cov dej noo thiab tswj cov kua dej poob hauv cov av nkos uas muaj dej. Nws yooj yim yaj hauv dej thiab muaj cov yam ntxwv zoo heev, ua rau nws zoo tagnrho rau kev nqa cov txiav thob mus rau saum npoo av.

Cov cellulose fibers, ntawm qhov tod tes, yog ntev dua thiab muaj fibrous dua li cov hmoov cellulose. Lawv feem ntau siv rau hauv cov av nkos uas muaj qhov hnyav, qhov twg xav tau cov kua dej drilling siab kom tswj tau qhov siab ntawm cov av nkos. Cov cellulose fibers pab txhim kho qhov kev ua haujlwm ntawm cov av nkos, txhim kho kev ntxuav qhov, thiab txo qhov torque thiab rub thaum lub sijhawm drilling.

Cov khoom siv cellulose xws liCMCthiabHECyog cov tshuaj cellulose uas tau hloov kho los ntawm cov tshuaj lom neeg uas muaj cov yam ntxwv ua tau zoo dua. Lawv feem ntau siv rau hauv cov ntawv thov av nkos tshwj xeeb uas yuav tsum tau ua kom tau raws li qhov yuav tsum tau ua. Piv txwv li, CMC yog siv dav ua tus neeg tiv thaiv shale thiab tus neeg sawv cev tswj kev poob dej hauv cov kab ke av nkos uas siv dej, thaum HEC yog siv ua tus neeg hloov kho rheology thiab tus neeg sawv cev tswj kev lim dej hauv cov kab ke av nkos uas siv roj.

cellulose ua lub luag haujlwm tseem ceeb hauv kev tsim cov av nkos vim nws cov khoom tshwj xeeb thiab kev ua tau ntau yam. Los ntawm kev muab viscosity thiab rheological tswj kom txhim kho kev tswj cov kua dej poob thiab kev ruaj khov ib puag ncig, cellulose muaj ntau yam txiaj ntsig hauv kev ua haujlwm drilling. Raws li kev lag luam roj thiab roj txuas ntxiv hloov zuj zus, qhov kev thov rau cov kev daws teeb meem drilling av nkos zoo thiab zoo rau ib puag ncig yuav nce ntxiv, ntxiv qhov tseem ceeb ntawm cellulose ua ib qho tseem ceeb ntxiv hauv cov kua dej drilling.