High Efficiency Polyacrylamide Rau Roj Hloov

Vim qhov tseeb tias cov dej yog cov kuab tshuaj zoo tshaj plaws thiab cov kua dej ua haujlwm feem ntau yog siv hauv cov roj thiab cov roj drilling thiab cov khoom siv extraction, cov khoom siv polymer siv hauv cov roj thiab cov roj extraction feem ntau yog dej-soluble. Txawm hais tias muaj ntau hom dej-soluble polymers, txog tam sim no, feem ntau siv dej-soluble polymers hauv cov roj thiab roj extraction ua haujlwm ntawm cov nplai loj yog polyacrylamide thiab nws cov derivatives tau los ntawm copolymerization nrog lwm cov dej-soluble monomers.

Raws li cov khoom ntawm polyacrylamide xws li viscosity nce, flocculation, thiab luag txo, nws yog dav siv nyob rau hauv drilling, tiav, acidification, fracturing, dej plugging, profile tswj, tertiary roj rov qab, dej kho, thiab lwm yam nyob rau hauv cov roj thiab roj. cov txheej txheem ntau lawm.

Lub hauv paus ntsiab lus ntawm kev nyab xeeb ntawm polymer yog tsuas yog siv cov viscosity ntawm cov dej-soluble polyacrylamide muab faib ua chains, txhim kho qhov sib piv ntawm cov pa hloov pauv, txhim kho kev khiav hauj lwm zoo thiab hws ntim, thiab yog li ua tiav lub hom phiaj ntawm kev txhim kho cov roj rov qab.

(1) Qhov qis roj-dej ntws piv ntawm txoj kev tuaj yeem hloov pauv qhov nkhaus ntawm ib nrab. Qhov no qhia tau hais tias nws tuaj yeem txo cov ntsiab lus ntawm cov kua dej uas tsim tawm, txhim kho cov roj rov qab, thiab muaj kev cuam tshuam zoo dua.

(2) Los ntawm kev txhim kho qhov sib piv ntawm cov dej tsav, dej nyab polymer tuaj yeem txhim kho qhov tshwm sim ntawm cov ntiv tes xoo ntawm cov naj hoom dej nyab hauv lub dav hlau heterogeneous, thiab txhim kho lub dav hlau cheb efficiency; Nyob rau hauv vertically heterogeneous formations, lub polymer ntu ua ntej nkag mus rau hauv lub siab permeability txheej thiab siv nws cov viscosity siab cov yam ntxwv rau "thaiv" siab permeability txheej, ua rau cov dej tom qab dej nyab los hloov mus rau hauv qis permeability txheej, ua rau cov dej nqus tuab thiab nthuav dav ntsug. cheb efficiency.

(3) Lub polymer undergoes adsorption, mechanical trapping, thiab lwm yam kev ua thaum dhau los ntawm qhov ntxeem tau nruab nrab, ua rau kom tuav, hloov qhov permeability ntawm qhov sib txawv qhov twg cov polymer nyob. Ib feem ntawm cov adsorbed polymer molecular saw uas ntsib cov kua dej muaj hydrophilicity, uas tuaj yeem txo cov txheeb ze permeability ntawm cov dej theem yam tsis tau txo cov txheeb ze permeability ntawm cov roj theem, uas yog, los thaiv cov dej tsis thaiv cov roj.

Nyob rau tib lub sijhawm, kev tuav pov hwm polymer tuaj yeem ua rau kom cov coefficient tsis kam thiab cov coefficient residual resistance, thiab cov seepage kuj nce, ua rau muaj kev nce hauv kev tsav tsheb sib txawv, uas yog qhov zoo rau kev tsav tsheb cov txheej txheem yav dhau los uas tsis ntws thiab nce qhov ntim ntawm qhov sib txawv. roj txheej.

(4) Vim yog lub zog viscous ntawm cov tshuaj polymer da dej, nws nyuaj rau nws nkag mus rau hauv cov pore qhov khoob thiab cov yeeb yaj kiab dej. Nws raug thawb rau hauv lub piston zoo li hauv lub pore channel, zam kev ntes thiab khaws cov roj los ntawm qhov pores.

Tsis tas li ntawd, cov kua nplaum polymer muaj cov nyhuv ntawm kev txhim kho cov viscoelasticity ntawm cov roj-dej interface, ua rau nws yooj yim dua rau cov roj los yog cov yeeb yaj kiab roj kom ncab thiab deform, ua kom yooj yim dua los ntawm txoj kab nqaim, txhim kho micro roj hloov efficiency, thiab txhim kho. crude roj rov qab tus nqi.

Polyacrylamide qhuav hmoov

Polyacrylamide Colloid