CMC siv hauv Petroleum thiab Oil Drilling Industry

Carboxymethylcellulose (CMC) yog siv dav hauv kev lag luam roj av thiab roj drilling rau ntau yam kev siv vim nws cov khoom tshwj xeeb xws li dej-soluble polymer. Nws yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag, los ntawm ib tug tshuaj hloov txheej txheem uas qhia carboxymethyl pawg. CMC yog ua hauj lwm nyob rau hauv ob qho tib si onshore thiab offshore drilling ua hauj lwm. Nov yog qee qhov kev siv tseem ceeb ntawm CMC hauv kev lag luam roj av thiab roj drilling:

1. Drilling Fluid Additive:
   • CMC feem ntau yog siv los ua ib qho tseem ceeb ntxiv hauv cov kua dej drilling. Nws ua haujlwm rau ntau lub hom phiaj, suav nrog:
     • Viscosifier: CMC ua kom cov viscosity ntawm cov dej drilling, muab cov lubrication tsim nyog thiab ncua kev txiav tawm.
     • Fluid Loss Control: CMC pab tswj cov dej poob rau hauv kev tsim, ua kom muaj kev ruaj ntseg ntawm lub qhov dej.
     • Rheology Modifier: CMC ua raws li kev hloov kho rheology, cuam tshuam cov khoom ntws ntawm cov kua dej hauv qhov sib txawv.
2. Suspension Agent:
   • Hauv cov dej drilling, CMC ua tus neeg sawv cev ncua, tiv thaiv cov khoom siv, xws li drilled cuttings, los ntawm kev nyob hauv qab ntawm lub qhov dej. Qhov no ua rau kom muaj txiaj ntsig zoo drilling thiab tshem tawm cov cuttings los ntawm borehole.
3. Lubricant thiab Friction Reducer:
   • CMC muab lubrication thiab ua hauj lwm raws li kev sib txhuam reducer hauv cov kua dej drilling. Qhov no yog qhov tseem ceeb rau kev txo qis kev sib txhuam ntawm qhov laum me ntsis thiab lub qhov borehole, txo qhov hnav ntawm cov khoom siv drilling thiab txhim kho kev ua haujlwm ntawm drilling.
4. Stabilization ntawm borehole:
   • CMC pab ua kom lub qhov dej ruaj khov los ntawm kev tiv thaiv lub cev qhuav dej ntawm cov khoom siv tho. Nws tsim cov txheej tiv thaiv ntawm cov phab ntsa hauv qhov dej, txhim kho kev ruaj ntseg thaum lub sijhawm ua haujlwm drilling.
5. Cement Slurry Additive:
   • CMC yog siv los ua ib qho ntxiv hauv cov cement slurries rau roj zoo cementing. Nws txhim kho cov khoom rheological ntawm cov cement slurry, kom ntseeg tau qhov kev tso kawm thiab tiv thaiv kev sib cais ntawm cov cement.
6. Txhim Kho Roj Rov Qab (EOR):
   • Hauv kev txhim kho cov txheej txheem roj rov qab, CMC tuaj yeem siv los ua tus neeg saib xyuas kev txav mus los. Nws pab txhim kho qhov kev hloov pauv ntawm cov kua dej, ua kom yooj yim rau kev rov qab los ntawm cov roj ntxiv los ntawm cov reservoirs.
7. Kev tswj cov kua dej viscosity:
   • CMC yog ua haujlwm los tswj cov viscosity ntawm cov kua dej drilling, ua kom cov kua dej zoo nyob rau hauv qhov sib txawv downhole. Qhov no yog qhov tseem ceeb rau kev tswj xyuas qhov zoo ntawm qhov drilling thiab kev ruaj ntseg zoo.
8. Lim ncuav mog qab zib Control:
   • CMC pab tswj kev tsim cov ncuav qab zib lim dej ntawm phab ntsa zoo thaum lub sijhawm drilling. Nws pab txhawb rau kev tsim lub ncuav mog qab zib ruaj khov thiab tswj tau, tiv thaiv kom tsis txhob muaj dej ntau dhau thiab ua kom muaj kev ncaj ncees zoo.
9. Reservoir Drilling Fluids:
   • Nyob rau hauv reservoir drilling, CMC yog siv nyob rau hauv drilling kua los daws cov teeb meem tshwj xeeb cuam tshuam nrog reservoir tej yam kev mob. Nws pab tswj kev ruaj ntseg ntawm lub qhov dej thiab tswj cov kua dej.
10. Lost Circulation Control:
    • CMC yog ua hauj lwm los tswj cov teeb meem kev ploj thaum lub sij hawm drilling. Nws pab foob thiab choj qhov khoob hauv qhov tsim, tiv thaiv qhov poob ntawm cov kua dej hauv qhov chaw ntxeem tau lossis tawg.
11. Zoo Stimulation Fluids:
    • CMC tuaj yeem siv rau hauv cov kua dej stimulation zoo los txhim kho cov kua dej viscosity thiab tshem tawm cov khoom siv thaum lub sijhawm ua haujlwm hydraulic fracturing.

Hauv cov ntsiab lus, carboxymethylcellulose (CMC) ua lub luag haujlwm tseem ceeb hauv kev lag luam roj av thiab roj drilling, ua rau muaj txiaj ntsig zoo, ruaj khov, thiab kev nyab xeeb ntawm kev ua haujlwm drilling. Nws cov khoom siv ntau yam ua rau nws muaj txiaj ntsig zoo ntxiv hauv cov dej drilling thiab cov cement slurries, hais txog ntau yam kev cov nyom uas tau ntsib hauv kev tshawb nrhiav thiab rho tawm cov peev txheej roj thiab roj.