Hydroxyethyl Cellulose hauv Fracturing Fluid hauv Roj Drilling

Hydroxyethyl cellulose (HEC) qee zaum siv rau hauv cov kua fracturing siv hauv cov roj drilling, tshwj xeeb tshaj yog nyob rau hauv hydraulic fracturing, feem ntau hu ua fracking. Fracturing fluids yog txhaj rau hauv lub qhov dej ntawm kev kub siab los tsim kev puas tsuaj hauv cov pob zeb tsim, tso cai rau kev tshem tawm cov roj thiab roj. Nov yog li cas HEC tuaj yeem siv rau hauv cov kua dej tawg:

1. Viscosity Modification: HEC ua haujlwm raws li kev hloov kho rheology, pab tswj cov viscosity ntawm cov kua fracturing. Los ntawm kev kho qhov concentration ntawm HEC, cov neeg ua haujlwm tuaj yeem kho qhov viscosity kom ua tiav cov khoom siv dej tawg uas xav tau, ua kom cov kua dej thauj tau zoo thiab tsim kev puas tsuaj.
2. Fluid Loss Control: HEC tuaj yeem pab tswj cov dej poob rau hauv kev tsim thaum lub sij hawm hydraulic fracturing. Nws tsim ib lub ncuav mog qab zib nyias, impermeable lim rau ntawm cov phab ntsa tawg, txo cov kua dej thiab tiv thaiv kev puas tsuaj rau kev tsim. Qhov no yuav pab kom muaj kev puas tsuaj puas tsuaj thiab ua kom pom kev ua haujlwm ntawm lub pas dej.
3. Proppant Suspension: Fracturing fluids feem ntau muaj cov khoom siv, xws li cov xuab zeb lossis cov khoom siv ceramic, uas tau nqa mus rau hauv cov pob txha kom lawv qhib. HEC pab tshem tawm cov khoom siv no hauv cov kua dej, tiv thaiv lawv cov kev daws teeb meem thiab ua kom muaj kev faib tawm tsis sib xws hauv cov pob txha.
4. Fracture Cleanup: Tom qab cov txheej txheem fracturing, HEC tuaj yeem pab ntxuav cov kua dej tawg ntawm lub qhov dej thiab cov pob txha. Nws cov viscosity thiab kua poob tswj cov khoom pab xyuas kom meej tias cov kua fracturing tuaj yeem rov qab zoo los ntawm qhov dej, tso cai rau kev tsim cov roj thiab roj pib.
5. Compatibility nrog Additives: HEC yog sib xws nrog ntau yam additives feem ntau siv nyob rau hauv fracturing kua, xws li biocides, corrosion inhibitors, thiab kev sib txhuam reducers. Nws compatibility tso cai rau cov formulation ntawm customized fracturing kua haum rau tej yam kev mob zoo thiab ntau lawm yuav tsum tau.
6. Temperature Stability: HEC pom zoo thermal stability, ua rau nws haum rau siv nyob rau hauv fracturing kua raug rau kub kub downhole. Nws tuav nws cov khoom rheological thiab kev ua tau zoo raws li cov kua dej ntxiv nyob rau hauv cov xwm txheej hnyav, kom ntseeg tau tias kev ua haujlwm zoo ib yam thaum lub sijhawm ua haujlwm hydraulic fracturing.

Hydroxyethyl cellulose (HEC) tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev tsim cov kua dej tawg rau cov ntawv thov roj. Nws hloov kho viscosity, kua tsis tswj, ncua kev ncua, kev sib raug zoo nrog cov additives, qhov kub thiab txias, thiab lwm yam khoom ua rau kev ua tau zoo thiab kev ua tiav ntawm kev ua haujlwm hydraulic fracturing. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tau xav txog cov yam ntxwv tshwj xeeb ntawm lub pas dej thiab cov xwm txheej zoo thaum tsim cov kua dej fracturing formulations uas muaj HEC.