Hydroxyethylcellulose (HEC) ua lub luag haujlwm tseem ceeb hauv kev lag luam roj drilling, tshwj xeeb tshaj yog nyob rau hauv cov kua drilling lossis av nkos. Cov kua drilling yog qhov tseem ceeb hauv cov txheej txheem drilling roj, muab ntau yam haujlwm xws li txias thiab lubricating cov laum laum, nqa cov txiav drilling mus rau saum npoo, thiab tswj kev ruaj khov ntawm lub qhov dej. HEC yog ib qho tseem ceeb additive hauv cov kua drilling no, pab txhim kho lawv cov txiaj ntsig zoo thiab kev ua tau zoo.
Kev Taw Qhia Txog Hydroxyethyl Cellulose (HEC):
1. Cov qauv tshuaj lom neeg thiab cov khoom:
Hydroxyethyl cellulose yog ib qho nonionic, dej-soluble polymer tau los ntawm kev hloov kho tshuaj ntawm cellulose.
Pawg hydroxyethyl hauv nws cov qauv muab nws solubility hauv dej thiab roj, ua rau nws ntau yam.
Nws qhov hnyav molecular thiab qib kev hloov pauv cuam tshuam rau nws cov khoom rheological, uas yog qhov tseem ceeb rau nws cov kev ua tau zoo hauv cov kua dej drilling.
2. Kev hloov kho Rheological:
HEC yog siv los ua tus hloov kho rheology, cuam tshuam rau tus cwj pwm ntws thiab viscosity ntawm cov kua dej drilling.
Kev tswj cov khoom rheological yog qhov tseem ceeb rau kev ua kom zoo dua ntawm cov kua dej drilling nyob rau hauv ntau yam xwm txheej downhole.
3. Kev tswj lim:
HEC ua haujlwm ua tus neeg sawv cev tswj kev lim dej, tiv thaiv kev poob dej ntau dhau rau hauv kev tsim.
Cov polymer ua ib lub ncuav mog qab zib nyias nyias, tsis nkag tau rau ntawm lub qhov dej, txo cov kua dej drilling nkag mus rau hauv cov pob zeb ib puag ncig.
4. Kev ntxuav thiab dai:
HEC pab ncua cov txiav tho qhov, tiv thaiv lawv kom tsis txhob nyob hauv qab ntawm lub qhov dej.
Qhov no ua kom ntseeg tau tias qhov dej ntxuav tau zoo, ua kom lub qhov dej huv thiab tiv thaiv kev thaiv uas yuav cuam tshuam cov txheej txheem khawb.
5. Kev siv roj nplua nyeem thiab txias:
Cov khoom siv lubricating ntawm HEC pab txo qhov kev sib txhuam ntawm txoj hlua laum thiab lub qhov dej, yog li txo qhov hnav thiab tsim kua muag ntawm cov khoom siv drilling.
Nws kuj tseem pab tshem tawm cua sov, pab ua kom txias ntawm lub laum thaum lub sijhawm ua haujlwm drilling.
6. Kev ruaj khov ntawm kev tsim:
HEC ua rau lub qhov dej ruaj khov los ntawm kev txo qis qhov kev pheej hmoo ntawm kev puas tsuaj ntawm cov pob zeb.
Nws pab tswj kom lub qhov dej khov zoo los ntawm kev tiv thaiv kev tawg lossis kev puas tsuaj ntawm cov pob zeb nyob ib puag ncig.
7. Cov kua dej uas siv rau kev khawb av:
HEC feem ntau siv rau hauv cov kua dej drilling kom muab viscosity thiab stability rau cov kua drilling.
Nws qhov sib xws nrog dej ua rau nws tsim nyog rau kev tsim cov kua dej drilling uas zoo rau ib puag ncig.
8. Txo cov kua dej uas siv rau kev khawb av:
Hauv cov kua dej uas tiv thaiv kev khawb av, HEC ua lub luag haujlwm hauv kev tswj cov dej hauv shale, tiv thaiv kev nthuav dav, thiab txhim kho kev ruaj khov ntawm qhov dej.
9. Qhov chaw kub siab:
HEC ruaj khov thiab siv tau rau kev ua haujlwm drilling kub siab.
Nws cov khoom tseem ceeb heev rau kev tswj hwm qhov ua tau zoo ntawm cov kua dej drilling hauv qab qhov kub siab.
10. Kev sib raug zoo ntawm cov khoom ntxiv:
HEC siv tau ua ke nrog lwm cov kua dej drilling xws li polymers, surfactants thiab weighting agents kom ua tiav cov kua dej xav tau.
11. Kev puas tsuaj ntawm shear:
Qhov kev txiav uas raug thaum lub sijhawm drilling tuaj yeem ua rau HEC puas tsuaj, cuam tshuam rau nws cov khoom rheological dhau sijhawm.
Kev tsim cov tshuaj ntxiv thiab kev xaiv kom zoo tuaj yeem txo cov teeb meem ntsig txog kev txiav.
12. Kev cuam tshuam rau ib puag ncig:
Txawm hais tias HEC feem ntau suav tias yog tus phooj ywg ib puag ncig, qhov cuam tshuam rau ib puag ncig ntawm cov kua dej drilling, suav nrog HEC, yog ib qho kev txhawj xeeb thiab kev tshawb fawb tas mus li.
13. Kev xav txog tus nqi:
Qhov kev siv HEC hauv cov kua dej drilling yog qhov kev txiav txim siab, nrog cov neeg teb xov tooj ntsuas qhov txiaj ntsig ntawm cov khoom ntxiv rau tus nqi.
xaus lus:
Hauv kev xaus, hydroxyethyl cellulose yog ib qho khoom siv tseem ceeb hauv kev lag luam roj drilling, pab txhawb rau kev vam meej thiab kev ua haujlwm ntawm kev drilling. Nws ntau yam haujlwm, suav nrog kev hloov pauv rheology, kev tswj kev lim dej, kev ntxuav qhov thiab lubrication, ua rau nws yog ib qho tseem ceeb ntawm cov kua drilling. Raws li kev ua ub no drilling txuas ntxiv mus thiab kev lag luam ntsib cov teeb meem tshiab thiab kev xav txog ib puag ncig, HEC txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev ua tau zoo tshaj plaws thiab kev ruaj khov ntawm kev ua haujlwm drilling roj. Kev tshawb fawb thiab kev txhim kho txuas ntxiv hauv polymer chemistry thiab drilling fluid technology yuav pab txhawb rau kev nce qib ntxiv thiab kev txhim kho hauv kev siv hydroxyethyl cellulose hauv kev lag luam roj thiab roj.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-28-2023