Nyob rau hauv kev lag luam drilling, ntau yam av (lossis drilling dej) yog cov ntaub ntawv tseem ceeb los xyuas kom meej kev ua kom nruj ntawm cov txheej txheem drilling. Tshwj xeeb tshaj yog nyob rau hauv cov geological ib puag ncig, kev xaiv thiab kev xaiv thiab cov kev cuam tshuam tseem ceeb rau kev ua haujlwm zoo, kev nyab xeeb thiab tswj hwm kev siv cov haujlwm drooring. cuam tshuam ncaj qha.Hydroxyethyl cellulose (HEC)Yog lub ntuj cellulose derivative uas ua lub luag haujlwm tseem ceeb ua ib qho kev ntxiv hauv cov av nkos. Nws muaj cov khoom siv ua kom zoo, rhuaology, tiv thaiv cov pa phem thiab kev nyab xeeb kom nyab xeeb, nws yog dav siv hauv tshuab drilling.
1. Cov yam ntxwv thiab cov qauv tshuaj lom neeg ntawm HEC
HEC yog dej-soluble, tsis-toxic thiab muaj kev phom sij ntuj polymer compound. Lub ntsuas siv cov tshuaj cellulose qhia txog cov pawg hydroxyethyl rau nws cov qauv molecular, yog li sib sau ua kom muaj zog siv cov dej solubility. Daim ntawv thov ntawm HEC hauv cov kua dej hnyiab feem ntau yog tso siab rau cov pab pawg hydrophilic (Hydroxyethettyl pawg) hauv nws cov molecular. Cov pab pawg no tuaj yeem tsim tau lub hydrogen zoo koom tes network hauv cov kua aqueous, muab cov tshuaj hauv kev daws teeb meem. Cov.
2. Lub luag haujlwm tseem ceeb ntawm HEC hauv cov av nkos drilling
Thickening tus neeg sawv cev nyhuv
Ib qho ntawm cov haujlwm tseem ceeb tshaj plaws ntawm HEC hauv cov kua dej hnyiab tau yog cov tuab tuab. Lub siab viscosity cov yam ntxwv ntawm HEC tuaj yeem ua kom muaj peev xwm ua kom muaj peev xwm pab tau cov kua dej drilling, kom muaj peev xwm txhawb nqa cov roj drilling, kom muaj peev xwm txhawb nqa cov dej khawb thiab cov xuab zeb Nce viscosity ntawm drilling kua kuj pab txo kev sib txhuam ntawm sab hauv phab ntsa ntawm lub raj drilling, yog li kev txhim kho drilling efficiency. Tsis tas li ntawd, HEC lub zog thicking cov khoom thiab ruaj khov viscosity kom nws kom ua tiav cov kev cuam tshuam zoo tshaj plaws ntawm cov nqi drilling.
Lub luag haujlwm ntawm kua poob tswj tus neeg sawv cev
Thaum lub sijhawm drilling, tswj cov kua dej ntawm cov kua drilling yog qhov kev txiav txim siab tseem ceeb. Kev tswj cov kua dej yog qhov tseem ceeb los tswj kev ruaj khov los tiv thaiv cov av nkos mus rau kev tsim, ua rau muaj kev sib tsoo lossis kev tsim kom muaj kev sib tsoo nrog phab ntsa. Vim nws cov khoom siv hydration zoo, HEC tuaj yeem tsim cov khoom noj ntawm cov dej hauv lub cev, yog li ua kom muaj cov dej nyob hauv av. Cov lim dej ncuav no tsis yog muaj cov txheej txheem zoo thiab lub zog, tab sis kuj tseem tuaj yeem hloov kho qhov ruaj khov ntawm phab ntsa sib txawv thiab qhov kub thiab txias ib puag ncig.
Rheological cov neeg sawv cev thiab tswj tswj
Hec tseem ua si lub luag haujlwm tseem ceeb hauv kev tswj hwm firmulity hauv cov av nkos. Cov rheology ntawm drilling cov dej yog hais txog nws deformation lossis ntws muaj peev xwm nyob rau hauv kev txiav txim ntawm shear kev ntxhov siab. Qhov zoo dua cov rheology, qhov zoo dua cov tshuaj drilling kua yog ntawm kev xa khoom siab thiab nqa cov kev txiav tawm thaum lub sijhawm drilling. HEC tuaj yeem hloov kho cov khoom sib dhos los ntawm kev hloov pauv ntawm cov av nkos, yog tias cov av nkos, yog li txhim kho cov yeeb nkab zoo nkauj thiab txhim kho cov av nkos. Tshwj xeeb tshaj yog nyob rau hauv lub txheej txheem drilling ntawm cov hmoov av tob thiab kab rov tav, kev hloov kho rheological tau tshwj xeeb yog qhov tseem ceeb.
Txhim Kho Kom Huv Si
Cov nyhuv tuab ntawm HEC tsis tsuas yog pab txhawb rau lub peev xwm drilling muaj peev xwm nqa thiab tshem tawm laum kev huv ntawm qhov kev ua kom huv. Thaum lub sijhawm drilling, ib qho ntau ntawm kev txiav yuav ua rau hauv qhov chaw ua haujlwm. Yog tias cov cuttings tsis tuaj yeem ua tau zoo nrog cov av nkos, lawv yuav tau tso rau hauv qab ntawm lub qhov tshij, yog li nce lub laum me ntsis thiab cuam tshuam rau kev ua kom qhov kev nce qib drilling. Vim nws cov khoom siv thicking ntau ntxiv, HEC tuaj yeem pab cov av nkos tshem tawm tau zoo dua, yog li ua kom muaj kev sib raug zoo ntawm qhov kev ua tau zoo ntawm cov khoom lag luam.
Los tiv thaiv cov kab mob qias neeg
Thaum lub sij hawm drilling, cov av nkos feem ntau ua paug los ntawm cov minerals sib txawv thiab tsim cov kua dej, ua rau me el tsis ua hauj lwm. HEC YIS HAIV NEEG-HNUB QAIB HOM yog lwm qhov zoo dua. HEC yog qhov ruaj khov nyob rau hauv cov sib txawv ntawm pH cov kev mob thiab muaj cov muaj zog tiv thaiv ions xws li cov kev pheej hmoo ntawm cov kua dej tsis ua haujlwm hauv ib puag ncig kab kuab.
Ib puag ncig tus phooj ywg thiab biodegradable
Txij liTus payog cov khoom siv polymer, nws muaj cov phooj ywg biodegress thiab ib puag ncig ib puag ncig. Nyob rau hauv cov ntsiab lus ntawm maj mam ntxiv kev tiv thaiv ib puag ncig, cov cim biodegradabion ntawm HEC ua rau nws tseem ceeb ntawm ib puag ncig drilling cov kua dej hauv tshuab. HEC yuav tsis ua rau ib puag ncig tseem ceeb rau ib puag ncig thaum lub sijhawm siv, thiab yuav tsis muaj kev cuam tshuam zoo li ntawm cov av thiab dej hauv av tom qab kev ua tsis zoo. Yog li ntawd, nws yog qhov ua tau zoo ib puag ncig zoo nkauj additive.
3. Cov kev sib tw thiab yav tom ntej kev txhim kho hauv HEC cov ntawv thov
Txawm hais tias HEC muaj ntau yam zoo hauv cov av nkos, nws qhov kev ua tau zoo nyob rau hauv cov mob hnyav xws li kub thiab siab yuav tsum tau txhim kho ntxiv. Piv txwv li, HEC tuaj yeem yauv yauv ua tsis taus thermal ntawm qhov kub thiab txias, ua rau cov av nkos poob rau cov teebmeem. Yog li ntawd, txhawm rau ua haujlwm nyob rau hauv ntau dua cov nyom chaw, tshawb nrhiav nyob rau hauv xyoo tsis ntev los no tau pib txhim kho nws qhov kev kub siab loj thiab kev kub siab tiv taus. Piv txwv li, los ntawm kev qhia cov neeg sawv cev sib txuas lus sib txuas lus, cov kev ua tau zoo ntawm HEC nyob rau hauv cov kev mob tshuaj lom neeg tuaj yeem hloov kho thiab hloov kho cov kev xav tau ntau dua.
Raws li ib qho tseem ceeb tivthaiv ntawm cov av nkos, HEC ua lub luag haujlwm tseem ceeb hauv kev nqus cov tshuab ua kom zoo, tiv thaiv kev ua kom muaj kuab paug thiab ib puag ncig ua phooj ywg. Nyob rau yav tom ntej, raws li drilling tob thiab nyuaj siab, kev xav tau rau HEC yuav tseem nce ntxiv. Los ntawm kev ua kom zoo thiab kho hec, nws daim ntawv thov tau txais txuas ntxiv mus kom tau raws li qhov kev xav tau ntawm cov kev ntsuas nruj dua. Cov.
Lub Sijhawm Post: Nov-14-2024