Cov teebmeem ntawm Hydroxyethyl Cellulose hauv Oilfields

Hydroxyethyl Cellulose (HEC) yog cov dej-soluble polymer uas feem ntau siv hauv kev lag luam roj thiab roj raws li kev hloov kho rheology, thickener, thiab stabilizer. Nov yog qee qhov teebmeem ntawm HEC hauv cov roj av:

1. viscosity tswj: HEC yog siv los tswj cov viscosity ntawm drilling kua thiab cement slurries hauv oilfields. Nws pab tswj kom ruaj khov viscosity nyob rau hauv ntau yam kev mob, xws li kub thiab siab hloov.
2. Kev tswj kom pom: HEC tuaj yeem txo tus nqi ntawm cov dej poob hauv cov kua dej drilling thiab cov cement slurries, uas txhim kho lawv cov khoom pom. Qhov no yuav pab tiv thaiv kev tsim ntawm impermeable av nkos ncuav thiab txo txoj kev pheej hmoo ntawm cov yeeb nkab daig thaum lub sijhawm ua haujlwm drilling.
3. Shear thinning: HEC nthuav tawm tus cwj pwm shear-thinning, uas txhais tau hais tias nws cov viscosity txo qis hauv kev ntxhov siab. Cov cuab yeej no tuaj yeem muaj txiaj ntsig zoo hauv kev siv roj av uas tsis muaj viscosity yuav tsum tau siv thaum lub sij hawm siv, tab sis siab viscosity yog xav tau nyob rau hauv lub qhov dej.
4. Cov kua dej ruaj khov: HEC pab kom ruaj khov ntawm cov dej drilling thiab cov cement slurry los ntawm kev tiv thaiv kev teeb tsa thiab flocculation ntawm cov khib nyiab tshem tawm.
5. Environmental compatibility: HEC yog ib puag ncig tus phooj ywg thiab tsis ua rau muaj kev puas tsuaj rau ecosystem. Nws yog non-toxic thiab biodegradable, ua rau nws muaj kev nyab xeeb kev xaiv rau siv nyob rau hauv oilfields.
6. Compatibility nrog rau lwm yam additives: HEC yog sib xws nrog ntau yam ntawm lwm yam additives siv nyob rau hauv cov roj thiab roj kev lag luam, xws li drilling av nkos, brines, thiab cement slurries. Nws tuaj yeem siv ua ke nrog lwm cov polymers, xws li xanthan cov pos hniav, txhawm rau txhim kho kev ua haujlwm ntawm cov dej drilling thiab cov cement slurries.

Zuag qhia tag nrho, cov teebmeem ntawm HEC hauv cov roj av ua rau nws muaj txiaj ntsig zoo ntxiv rau kev txhim kho cov khoom ntawm cov dej drilling thiab cov cement slurries. Nws cov viscosity tswj, filtration tswj, shear thinning cwj pwm, kua stability, ib puag ncig compatibility, thiab compatibility nrog lwm yam additives ua rau nws yog ib qho tseem ceeb muaj nyob rau hauv cov roj thiab roj kev lag luam.