CMC / PAC: Nws ua lub luag haujlwm tseem ceeb hauv cov kua dej drilling. Yuav luag txhua yam drilling txoj haujlwm yuav tsum tau siv nws hauv cov khoom loj. Yog li vim li cas cmc thiab pac siv li hauv drilling? Qhov no cuam tshuam nrog nws cov yam ntxwv thiab versatility. Nws tuaj yeem pab koj daws cov teeb meem kev poob qis tshaj plaws, thiab nws tuaj yeem raug hu ua ib qho dav dav hauv cov kua dej drilling. Kab lus piav qhia yog vim li cas CMC thiab PAC yog hu ua cov neeg ua kom dej hauv cov kua dej los ntawm cov yam ntxwv yooj yim thiab kev siv ntawm CMC thiab PAC.
Ua ntej, wb nkag siab txog qee cov ntaub ntawv yooj yim hais txog CMC thiab PAC.
Dab tsi yog PAC (polyanionic cellulose)?
PAC (polyanionic cellulose) yog dej - soluble cellulose dav siv nyob rau hauv cov roj drilling reducer thiab viscosifier. Nws pab tsim cov roj nyias nyias thiab tawv nqaij tawv ntawm qhov chaw nyab xeeb, tiv thaiv kom tsis txhob muaj kua poob thiab ruaj khov lub khaus.
Hondo PAC muaj ob hom tseem ceeb:
PAC {- lv (qis viscosity): Feem ntau yog siv rau kev tswj cov kua poob yam tsis tau hloov lub viscospos.
Pac {- hv (siab viscosity): Muab ob qho tib si tswj tau thiab nce viscosity.
PAC yog ntsev - Tsis kam, tsis - paab, thiab ib puag ncig zoo, thiab ib puag ncig zoo, thiab ua kom haum rau ob qho tib si dej cawv thiab dej saline drilling.
Hondo CMC (Carboxymethyl cellulose) yog lub cellulose ether tau los ntawm ntuj cellulose.
Hondo CMC kuj muaj ob hom viscosity:
Cmc - lv: Rau qis - visc viscosity kua roj tsis tswj.
CMC - hv: Rau siab siab - viscosity ua kom haum thiab ua kom dej ruaj khov.
Hauv cov kua dej hnyiab, cm pab txo cov dej poob, ruaj khov qhov chaw nkaum, thiab txhim kho cov khoom sib dhos.
Ob qho tib si Hondo Pac thiab Hondo CMC yog qhov tseem ceeb ntxiv hauv cov dej lim dej drilling, zoo nkauj dej solubility, thiab sib xyaw nrog lwm cov av nkos chines.
Cov yam ntxwv yooj yim ntawm CMC thiab PAC nteg lub hauv paus rau nws cov kev ua haujlwm sib txawv. Qhov no yog ib qho ntawm cov laj thawj yog vim li cas nws thiaj hu ua ib tus tswv yim hauv cov dej drilling.
Tam sim no, cia peb to taub yuav ua li cas cmc thiab PAC ua haujlwm hauv kev drilling.
PAC (Polyanionic Cellulose) and CMC (Carboxymethyl Cellulose) are two common additives used in water-based drilling fluids. Lawv pab ua kom cov muaj kev nyab xeeb, txo qis poob dej, thiab txhim kho kev ua tau zoo ntawm cov av nkos.
Ntawm no yog li cas lawv ua haujlwm hauv cov lus yooj yim:
1. Tiv thaiv tus poj niam
Thaum drilling los ntawm cov pob zeb lossis tawg, cov dej lim dej tuaj yeem txia hauv av. PAC thiab CMC Tsim cov txheej tiv thaiv nyias nyias (hu ua lub lim ncuav mog qab zib) ntawm phab ntsa ntawm lub qhov. Qhov no pab muab cov kab nrib me me thiab nres cov kua dej los ntawm kev khiav dim, uas ua rau lub tsev nyob ruaj khov.
2. Txo cov kua dej
Yog tsis muaj PAC lossis CMC, cov dej hauv cov av nkos drilling tau sai sai mus rau kev tsim. Cov tshuaj ntxiv no txo cov kua dej no, yog li cov av nkos tsawg yog khib, thiab lub siab sab hauv lub qhov dej sib npaug.
3. Tswj viscosity
PAC {- hv lossis cmc {1} hv} hv yog siab- Viscosity qib uas ua rau cov av nkos tuab. Qhov no pab nqa cov pob zeb cuttings mus rau saum npoo thiab khaws cia hauv qab ntawm lub qhov kom huv. Lub caij no, qis - viscososity hom (pac} lv lossis cm) pab txo cov hmoov tsis zoo yam tsis muaj av nkos.
4. Ua haujlwm hauv cov xwm txheej hnyav
PAC thiab CMC tuaj yeem siv nyob rau hauv cov dej tsis huv, dej qab ntsev, thiab dej ntws dej hiav txwv. Lawv nyob ruaj khov nyob rau hauv cov kub thiab ntsev ib puag ncig, uas ua rau lawv zoo tagnrho rau ntug dej lossis cov dej num tob tob.
PAC thiab CMC pab ntsuas dej ua lawv txoj haujlwm zoo dua - Sealing lub qhov, thiab ua tag nrho cov txheej txheem drilling tag nrho kev nyab xeeb dua thiab muaj txiaj ntsig.
