Nrog kev nce qib nruam ntawm kev tshawb fawb thiab thev naus laus zis, cov kev ua lag luam hauv qab kev ua lag luam yuav loj tuaj. Nyob rau tib lub sijhawm, qhov muaj peev xwm ntawm cov ntawv thov nqes qis yuav tsum ua txuas ntxiv mus nthuav dav, thiab cov dej ntws hauv dej yuav tswj hwm kev loj hlob. Hauv kev lag luam hauv qab hauv kev lag luam ether ether, cov ntaub ntawv hauv tsev, roj kev tshawb nrhiav, khoom noj thiab lwm daim teb nyob ib txoj haujlwm loj. Ntawm lawv, lub tsev cov khoom lag luam yog cov neeg siv khoom lag luam loj tshaj plaws, suav rau ntau dua 30%.
Kev lag luam kev tsim kho yog qhov loj tshaj plaws cov neeg siv khoom ntawm HPMC cov khoom lag luam
Hauv kev tsim kho kev tsim kho, HPMC cov khoom lag luam ua lub luag haujlwm tseem ceeb hauv kev sib sau ua ke thiab dej khaws cia. Tom qab tov ib qho nyiaj me me ntawm HPMC nrog ceelent cug, tensile thiab shear, li kev txhim kho cov ntaub ntawv hauv tsev, txhim kho kev tsim kho thiab kev siv tshuab ua haujlwm tau zoo. Tsis tas li ntawd, HPMC tseem yog tus retarder tseem ceeb rau kev tsim khoom thiab kev thauj khoom lag luam ua lag luam thiab txhim kho cov rheology ntawm pob zeb ua. Tam sim no, HPMC yog cov khoom siv loj heev ether siv hauv kev tsim cov khoom sealing.
Kev lag luam kev tsim kho yog qhov tseem ceeb hauv ncoo kev lag luam ntawm kuv lub teb chaws lub tebchaws kev lag luam. Cov ntaub ntawv qhia tau hais tias qhov kev tsim kho vaj tse tau nce los ntawm 7.02 billion square metres hauv xyoo 2019, uas tau txhawb txoj kev loj hlob ntawm cellulose ether kev ua lag luam ether.
Qhov kev vam meej tag nrho ntawm kev lag luam av uas tau rov qab, thiab thaj chaw tsim khoom thiab kev muag khoom tau nce xyoo nyob rau xyoo. Cov ntaub ntawv pej xeem qhia tau tias xyoo 2020, txhua hli kev tsim kho lub tsev ua lag luam tau raug nqaim, thiab xyoo-xyoo txo tau yog 1.87%. Hauv 2021, txoj kev rov qab los yog xav kom txuas ntxiv. Txij Lub Ib Hlis Ntuj txog Lub Ob Hlis Ntuj xyoo no, kev loj hlob ntawm cov tsev muag khoom lag luam thiab vaj tse nyob rau 104.9%, uas yog qhov nce ntxiv.
OIl Drilling
Lub tshuab tshawb fawb kev lag luam tshwj xeeb yog cuam tshuam los ntawm kev tshawb nrhiav thoob ntiaj teb thiab kev txhim kho thoob ntiaj teb kev ua haujlwm rau kev siv cov tshuab txhim kho tshuab hluav taws xob.
Thaum lub sij hawm roj drilling, drilling kua rau lub luag haujlwm tseem ceeb hauv kev nqa thiab kev siv cov phab ntsa lub siab, cua txias thiab xa hydrodyamic quab yuam. Yog li ntawd, nyob rau hauv cov roj drilling ua haujlwm, nws yog ib qho tseem ceeb heev rau kev tswj kom zoo, viscosity, fwj dej thiab lwm yam qhia txog kev drilling. Lub polyanionic cellulose, PAC, tuaj yeem tuab, ntub lub laum me ntsis, thiab nqa hydrodynamic quab yuam. Vim yog lub gooveological nyuaj nyob rau hauv cov roj cia cheeb tsam thiab qhov nyuaj ntawm kev khiav, muaj qhov xav tau loj rau PAC.
Kws Lag Luam Khoom Lag Luam Hluav Taws Xob
Cov neeg tsis muaj kev ua haujlwm ntawm cellulos no tau siv dav hauv kev lag luam kws tshuaj zoo li cov tshuaj siv hluav taws xob xws li cov thickeners, dispulsifiers thiab zaj duab xis tsim. Nws yog siv rau zaj duab xis txheej thiab cov nplaum ntawm cov ntsiav tshuaj, thiab cov txheej txheem kev tsim kho, thiab cov kev tsim kho kom raug rau cov txheej txheem. Piv nrog rau lwm qib ntawm cellulose khoom siv, cov nqi sau tau qis dua thiab cov nqi ntawm cov khoom yog tseem ntau dua. Kws tsim kho cov tshuaj tau tsuas yog siv los ua cov khoom lag luam xws li npaj tshuaj lom neeg npaj tshuaj, suav cov tshuaj patent thiab cov khoom lag luam biochemical.
Vim tias lub sijhawm pib ntawm kuv lub teb chaws cov chaw muag tshuaj, txoj kev lag luam kev loj hlob tam sim no tsis muaj kev txhim kho kev lag luam ntxiv. Nyob rau hauv cov zis tus nqi ntawm kev npaj cov khoom tsim kho hauv tsev, cov txiaj ntsig ntawm cov tshuaj noj uas tsis muaj txiaj ntsig ntawm cov tshuaj lom neeg ntawm cov khoom lag luam txawv txawv, uas yog li 15%. Nws tuaj yeem pom tau tias kev siv hluav taws xob tseem muaj ntau chav rau kev txhim kho, nws yuav tsum ua kom muaj kev loj hlob ntawm cellulose kev ua lag luam ether.
Los ntawm kev pom ntawm cov cellulose ether ntau lawm, ua kom muaj peev xwm ntau lawm, ua tiav rau ntawm Shandong Yi Tian pu tshuaj thiab lwm yam kev lag luam. Zuag qhia tag nrho, kev sib tw hauv kev lag luam yog tsiv, thiab kev xav tau nce ntxiv.
Lub Sijhawm Post: Apr-16-202