Kev siv ntawmCMC hauv OilfieldKev lag luam

Carboxymethyl cellulose (CMC) yog siv dav hauv kev lag luam oilfield rau ntau daim ntawv thov vim nws cov khoom tshwj xeeb thiab kev ua haujlwm. Nws ua hauj lwm raws li ib tug ntau yam additives nyob rau hauv drilling kua, tiav kua, thiab cementing slurries, ntawm lwm yam kev siv. Nov yog qee qhov kev siv CMC hauv kev lag luam oilfield:

1. Drilling kua:

Viscosifier: CMC yog siv los ua tus neeg sawv cev viscosifying hauv cov dej hauv cov dej drilling kom nce viscosity thiab txhim kho cov dej nqa tau. Nws pab tswj kev ruaj ntseg zoo, tshem tawm cov txiav, thiab tswj cov dej poob thaum lub sijhawm ua haujlwm drilling.
Fluid Loss Control: CMC ua raws li tus neeg saib xyuas cov dej poob los ntawm kev tsim cov ncuav mog qab zib nyias, impermeable lim rau ntawm phab ntsa hauv lub qhov dej, tiv thaiv cov kua dej ntau dhau rau hauv kev tsim.
Shale Inhibition: CMC pab inhibit shale o thiab dispersion los ntawm txheej shale nto thiab tiv thaiv hydration ntawm av nplaum hais, txo txoj kev pheej hmoo ntawm wellbore instability thiab daig yeeb nkab teeb meem.
Clay Stabilization: CMC stabilizes reactive av nplaum minerals nyob rau hauv drilling kua, tiv thaiv av nplaum o thiab tsiv teb tsaws, thiab kev txhim kho drilling efficiency nyob rau hauv av nplaum formations.

2. Cov kua dej ua kom tiav:

Fluid Loss Control: CMC tau ntxiv rau cov kua ua tiav los tswj cov dej poob rau hauv kev tsim thaum ua tiav thiab ua haujlwm ua haujlwm. Nws pab tswj kev tsim kev ncaj ncees thiab tiv thaiv kev tsim kev puas tsuaj.
Shale Stabilization: CMC pab kom ruaj khov shales thiab tiv thaiv shale hydration thiab o thaum ua tiav kev ua haujlwm, txo qis qhov zoo ntawm qhov tsis ruaj khov thiab txhim kho cov khoom tsim tau zoo.
Filter Cake Formation: CMC txhawb kev tsim cov khoom sib xws, impermeable lim ncuav mog qab zib ntawm lub ntsej muag tsim, txo qhov sib txawv ntawm qhov sib txawv thiab cov dej nkag mus rau hauv kev tsim.

3. Cementing Slurries:

Fluid Poob Additive: CMC ua hauj lwm raws li cov kua dej poob additive nyob rau hauv cementing slurries kom txo cov dej poob rau hauv permeable formations thiab txhim kho cov cement tso efficiency. Nws pab kom muaj kev sib cais zonal thiab kev sib txuas ntawm cov cement.
Thickening Agent: CMC ua raws li tus neeg sawv cev thickening nyob rau hauv cov cement slurries, muab viscosity tswj thiab txhim kho cov twj tso kua mis thiab tshem tawm cov cement hais thaum tso.
Rheology Modifier: CMC hloov kho cov rheology ntawm cov cement slurries, txhim kho cov khoom ntws, sag tsis kam, thiab kev ruaj ntseg nyob rau hauv downhole tej yam kev mob.

4. Txhim Kho Roj Rov Qab (EOR):

Dej Flooding: CMC yog siv rau hauv dej nyab dej ua hauj lwm los txhim kho cheb efficiency thiab txhim kho cov roj rov qab los ntawm cov reservoirs. Nws ua rau kom cov viscosity ntawm cov dej txhaj tshuaj, txhim kho kev tswj kev txav mus los thiab kev ua haujlwm tawm mus.
Polymer Flooding: Hauv cov ntawv thov dej nyab polymer, CMC tau ua haujlwm los ua tus neeg saib xyuas kev txav mus los txhawm rau txhim kho kev sib raug zoo ntawm cov tshuaj polymers thiab ua rau kom muaj txiaj ntsig zoo ntawm cov dej ntws tawm.

5. Fracturing Fluids:

Kua Viscosifier: CMC yog siv los ua tus neeg sawv cev viscosifying hauv hydraulic fracturing kua los ua kom cov kua viscosity thiab proppant nqa peev xwm. Nws pab tsim thiab tswj cov pob txha tawg hauv kev tsim thiab txhim kho kev thauj mus los thiab kev tso kawm.
Fracture Conductivity Enhancement: CMC pab hauv kev tswj cov pob khoom kom ruaj khov thiab tawg ua kom muaj zog los ntawm kev txo cov kua dej tawm mus rau hauv kev tsim thiab tiv thaiv kom tsis txhob muaj teeb meem.

Hauv cov ntsiab lus,carboxymethyl cellulose(CMC) ua lub luag haujlwm tseem ceeb hauv ntau daim ntawv thov hauv kev lag luam roj, suav nrog cov kua dej drilling, cov kua ua tiav, cov cementing slurries, txhim kho cov roj rov qab (EOR), thiab cov kua dej tawg. Nws versatility raws li tus neeg saib xyuas kev poob dej, viscosifier, shale inhibitor, thiab rheology modifier ua rau nws yog ib qho tseem ceeb ntxiv rau kev ua kom muaj txiaj ntsig zoo thiab ua tiav kev ua haujlwm ntawm cov roj av.