Polyanionic Cellulose oildrilling

Polyanionic cellulose (PAC) yog ib qho tseem ceeb ntxiv hauv cov roj drilling kua, ua haujlwm ntau yam los txhim kho kev ua haujlwm drilling. Nov yog li cas PAC pab txhawb rau cov roj drilling kua:

1. viscosity Control: PAC pab tswj cov viscosity ntawm cov dej drilling, kom nws muaj qhov tsim nyog tuab kom ua tau zoo nqa drilled cuttings rau saum npoo. Qhov no yog qhov tseem ceeb rau kev tswj xyuas qhov chaw zoo thiab tiv thaiv cov teeb meem xws li qhov tawg.
2. Fluid Poob Tiv Thaiv: PAC tsim lub ncuav mog qab zib nyias, impermeable lim rau ntawm phab ntsa borehole, txo cov kua dej poob rau hauv ib puag ncig tsim. Los ntawm kev txo cov kua dej tsawg, PAC pab tswj lub siab hydrostatic, tiv thaiv kev tsim kev puas tsuaj, thiab txhim kho cov khoom tsim tau zoo.
3. Kev Hloov Kho Rheology: PAC cuam tshuam rau tus cwj pwm ntws thiab cov khoom siv rheological ntawm cov kua dej drilling, txhim kho kev ncua ntawm cov khib nyiab thiab txo qis. Qhov no ua kom muaj kev ua tau zoo ib yam ntawm cov dej drilling hauv qhov sib txawv ntawm qhov chaw.
4. Lubrication thiab Friction Reduction: PAC muab lubrication ntawm txoj hlua laum thiab cov phab ntsa zoo, txo kev sib txhuam thiab txo qis. Qhov no yuav pab txhim kho kev ua haujlwm zoo drilling, txo qhov hnav ntawm cov khoom siv drilling, thiab txuas ntxiv lub neej ntawm cov cuab yeej siv.
5. Txhim Kho Qhov Kev Tu: Los ntawm kev ua kom lub viscosity thiab nqa lub peev xwm ntawm cov dej drilling, PAC pab txhawb kev tshem tawm cov drilled cuttings thiab khib nyiab los ntawm lub qhov dej, txhim kho qhov kev tu kom zoo thiab txo qhov kev pheej hmoo ntawm cov yeeb nkab daig.
6. Kub thiab Salinity Stability: PAC nthuav tawm siab thermal thiab ntsev kam rau ua, tswj nws cov viscosity thiab kev ua haujlwm zoo tshaj qhov kub thiab dej qab ntsev uas tau ntsib hauv kev ua haujlwm drilling.
7. Environmentally Friendly: PAC yog muab los ntawm cov nroj tsuag txuas ntxiv dua tshiab thiab yog biodegradable, ua rau nws tus phooj ywg environmentally thiab haum rau siv nyob rau hauv ib puag ncig rhiab heev drilling cheeb tsam.

Nyob rau hauv cov ntsiab lus, polyanionic cellulose yog ib qho tseem ceeb ntawm cov roj drilling kua, muab viscosification, kua poob tswj, rheology hloov kho, thiab lwm yam tseem ceeb zog kom ntseeg tau zoo thiab vam meej drilling hauj lwm nyob rau hauv cov roj thiab roj kev lag luam. Nws txoj kev ntseeg siab, kev ua tau zoo, thiab kev sib raug zoo ib puag ncig ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev ua kom zoo dua qhov dej drilling thiab kev ruaj ntseg zoo.