Qhov Ceev ntawm Bentonite Slurry
1. Kev faib tawm thiab kev ua tau zoo ntawm slurry
1.1 Kev faib tawm
Bentonite, tseem hu ua pob zeb bentonite, yog pob zeb av nplaum uas muaj feem pua ntau ntawm montmorillonite, uas feem ntau muaj me ntsis ntawm illite, kaolinite, zeolite, feldspar, calcite, thiab lwm yam. Bentonite tuaj yeem muab faib ua peb hom: sodium-based bentonite (av alkaline), calcium-based bentonite (av alkaline) thiab natural bleaching earth (av acidic). Ntawm lawv, calcium-based bentonite kuj tseem tuaj yeem muab faib ua calcium-sodium-based thiab calcium-magnesium-based bentonites.
1.2 Kev Ua Tau Zoo
1) Cov Khoom Siv Lub Cev
Bentonite yog dawb thiab daj daj hauv qhov ntuj thaum nws kuj tshwm sim hauv xim grey, ntsuab daj, xim av liab, dub, thiab lwm yam. Bentonite sib txawv hauv qhov tawv vim lawv cov khoom siv lub cev.
2) Cov Tshuaj Lom Zem
Cov khoom siv tshuaj lom neeg tseem ceeb ntawm bentonite yog silicon dioxide (SiO2), txhuas oxide (Al2O3) thiab dej (H2O). Cov ntsiab lus ntawm hlau oxide thiab magnesium oxide kuj siab qee zaum, thiab calcium, sodium, potassium feem ntau muaj nyob rau hauv bentonite hauv cov ntsiab lus sib txawv. Cov ntsiab lus ntawm Na2O thiab CaO hauv bentonite ua qhov sib txawv ntawm cov khoom siv lub cev thiab tshuaj lom neeg, thiab txawm tias cov txheej txheem thev naus laus zis.
3) Cov Khoom Siv Lub Cev & Tshuaj
Bentonite zoo tshaj plaws hauv nws qhov zoo tshaj plaws hygroscopicity, uas yog nthuav dav tom qab nqus dej. Tus lej nthuav dav uas cuam tshuam nrog kev nqus dej ncav cuag siab txog 30 npaug. Nws tuaj yeem tawg hauv dej los ua cov khoom sib xyaw ua ke, thixotropic, thiab lubricated. Nws hloov mus ua malleable thiab nplaum tom qab sib xyaw nrog cov khib nyiab me me xws li dej, slurry lossis xuab zeb. Nws muaj peev xwm nqus tau ntau yam roj, kua, thiab cov organic, thiab lub peev xwm nqus tau siab tshaj plaws tuaj yeem ncav cuag 5 npaug ntawm nws qhov hnyav. Lub ntiaj teb ua kom dawb acid surfactant tuaj yeem nqus cov xim.
Cov khoom siv lub cev thiab tshuaj lom neeg ntawm bentonite feem ntau nyob ntawm hom thiab cov ntsiab lus ntawm montmorillonite uas nws muaj. Feem ntau, sodium-based bentonite muaj cov khoom siv lub cev thiab tshuaj lom neeg zoo dua thiab kev ua haujlwm thev naus laus zis dua li calcium-based lossis magnesium-based bentonite.
2. Kev Ntsuas Txuas Ntxiv ntawm Bentonite Slurry
LubLonnmeterkab hauv kabbentoniteslurryqhov ceevlub 'meter'yog ib qho onlinelub ntsuas qhov ceev ntawm cov pulpfeem ntau siv rau hauv cov txheej txheem kev lag luam. Qhov ceev ntawm slurry yog hais txog qhov sib piv ntawm qhov hnyav ntawm slurry rau qhov hnyav ntawm qhov ntim dej teev tseg. Qhov loj ntawm qhov ceev ntawm slurry ntsuas ntawm qhov chaw nyob ntawm tag nrho qhov hnyav ntawm slurry thiab cov txiav hauv slurry. Qhov hnyav ntawm cov admixtures yuav tsum suav nrog yog tias muaj.
3. Daim Ntawv Thov Slurry Nyob Rau Hauv Cov Xwm Txheej Geological Sib Txawv
Nws nyuaj rau tho qhov hauv cov xuab zeb, cov xuab zeb xuab zeb, cov pob zeb me me thiab cov cheeb tsam tawg kom tau cov khoom sib txuas me me ntawm cov khoom me me. Qhov tseem ceeb rau qhov teeb meem yog nyob rau hauv kev nce lub zog sib txuas ntawm cov khoom me me, thiab siv cov slurry ua ib qho kev tiv thaiv hauv cov txheej txheem zoo li no.
3.1 Cov Nyhuv ntawm Slurry Density rau Drilling Speed
Qhov ceev ntawm qhov drilling txo qis nrog rau qhov nce ntawm cov slurry density. Qhov ceev ntawm qhov drilling txo qis heev, tshwj xeeb tshaj yog thaum cov slurry density ntau dua 1.06-1.10 g / cm3Qhov siab dua qhov viscosity ntawm cov slurry yog, qhov qis dua qhov drilling ceev.
3.2 Cov nyhuv ntawm cov xuab zeb hauv cov slurry rau kev khawb av
Cov pob zeb uas muaj nyob hauv cov slurry muaj kev pheej hmoo thaum drilling, ua rau cov qhov tsis huv thiab tom qab ntawd daig. Tsis tas li ntawd, nws yuav ua rau muaj kev nqus thiab kev ntxhov siab, ua rau muaj kev xau lossis lub qhov dej tawg. Cov xuab zeb muaj ntau thiab cov av hauv qhov tuab. Nws ua rau phab ntsa qhov tawg vim muaj dej noo, thiab nws yooj yim ua rau daim tawv nqaij slurry poob thiab ua rau muaj xwm txheej hauv qhov. Tib lub sijhawm, cov av noo ntau ua rau cov kav dej, cov khoom siv laum, cov tes tsho twj tso kua dej, thiab cov pas nrig piston hnav ntau heev, thiab lawv lub neej ua haujlwm luv luv. Yog li ntawd, nyob rau hauv lub hauv paus ntawm kev ua kom muaj kev sib npaug ntawm kev tsim siab, qhov ceev ntawm slurry thiab cov xuab zeb yuav tsum tau txo kom ntau li ntau tau.
3.3 Qhov Ceev ntawm Cov Av Mos
Hauv cov av mos mos, yog tias qhov ceev ntawm cov slurry qis dhau lossis qhov ceev ntawm kev khawb ceev dhau, nws yuav ua rau lub qhov tawg. Feem ntau nws zoo dua kom khaws qhov ceev ntawm cov slurry ntawm 1.25g / cm33hauv cov av txheej no.
4. Cov Qauv Slurry Feem Ntau
Muaj ntau hom slurry hauv kev tsim kho, tab sis lawv tuaj yeem muab faib ua cov hom hauv qab no raws li lawv cov tshuaj lom neeg sib xyaw. Txoj kev faib ua feem yog raws li nram no:
4.1 Na-Cmc (Sodium Carboxymethyl Cellulose) Slurry
Cov slurry no yog cov slurry uas ua kom viscosity ntau tshaj plaws, thiab Na-CMC ua lub luag haujlwm hauv kev ua kom viscosity ntxiv thiab txo qhov poob dej. Cov mis yog: 150-200g ntawm cov av nplaum zoo, 1000ml dej, 5-10Kg ntawm cov tshauv soda, thiab kwv yees li 6kg ntawm Na-CMC. Cov khoom ntawm slurry yog: qhov ceev 1.07-1.1 g / cm3, viscosity 25-35s, dej poob tsawg dua 12ml / 30 feeb, pH tus nqi kwv yees li 9.5.
4.2 Hlau Chromium Ntshav-Na-Cmc Slurry
Cov slurry no muaj zog viscosity txhim kho thiab ruaj khov, thiab hlau chromium ntsev ua lub luag haujlwm hauv kev tiv thaiv flocculation (dilution). Cov mis yog: 200g av nplaum, 1000ml dej, kwv yees li 20% ntxiv ntawm cov kua alkali ntshiab ntawm 50% concentration, 0.5% ntxiv ntawm ferrochromium ntsev kua ntawm 20% concentration, thiab 0.1% Na-CMC. Cov khoom slurry yog: ceev 1.10 g / cm3, viscosity 25s, dej poob 12ml / 30min, pH 9.
4.3 Lignin Sulfonate Slurry
Lignin sulfonate yog muab los ntawm cov kua qaub sulfite pulp pov tseg thiab feem ntau siv ua ke nrog cov neeg sawv cev alkali thee los daws qhov teeb meem tiv thaiv flocculation thiab dej poob ntawm slurry raws li viscosity nce. Cov mis yog 100-200kg av nplaum, 30-40kg sulfite pulp pov tseg kua, 10-20kg thee alkali tus neeg sawv cev, 5-10kg NaOH, 5-10kg defoamer, thiab 900-1000L dej rau 1m3 slurry. Cov yam ntxwv ntawm slurry yog: qhov ceev 1.06-1.20 g / cm3, funnel viscosity 18-40s, dej poob 5-10ml / 30 feeb, thiab 0.1-0.3kg Na-CMC tuaj yeem ntxiv thaum lub sijhawm drilling kom txo qis dej poob ntxiv.
4.4 Humic Acid Slurry
Cov kua qaub humic siv cov tshuaj alkali thee lossis sodium humate ua tus stabilizer. Nws tuaj yeem siv ua ke nrog lwm cov neeg sawv cev kho mob xws li Na-CMC. Cov mis rau kev npaj cov kua qaub humic yog ntxiv 150-200kg cov tshuaj alkali thee (qhov hnyav qhuav), 3-5kg Na2CO3, thiab 900-1000L dej rau 1m3 ntawm cov kua qaub. Cov yam ntxwv ntawm cov kua qaub: qhov ceev 1.03-1.20 g / cm3, dej poob 4-10ml / 30 feeb, pH 9.
Lub sijhawm tshaj tawm: Lub Ob Hlis-12-2025
