Silica Fume Rau Roj Thiab Gas Well Cementing
Silica fume yog ib qho kev sib cais zoo, cov khoom siv amorphous silica uas feem ntau yog siv los ua pozzolanic admixture hauv cov roj thiab roj zoo cementing daim ntaub ntawv. Nws yog cov khoom siv los ntawm cov txheej txheem silicon thiab ferrosilicon alloy, thiab nws muaj cov khoom uas muaj qhov loj ntawm 0.1 mus rau 5 microns inch.
Hauj lwm lawm
Khoom Description
Silica fume tuaj yeem txhim kho kev ua haujlwm ntawm cov roj thiab roj zoo cementing los ntawm kev txhim kho cov khoom ntawm cov cement slurry. Piv txwv li, nws tuaj yeem ua rau kom muaj zog compressive, txo cov permeability, thiab txhim kho cov kav ntev thiab tsis kam mus rau tshuaj tua kab mob ntawm cov cement hardened paste. Tsis tas li ntawd, silica fume kuj tseem tuaj yeem pab txo cov cua sov ntawm hydration thiab txo qhov kev pheej hmoo ntawm cov pa roj.
Kev siv cov silica fume nyob rau hauv cov roj thiab cov roj zoo cementing yog yuav tsum tau nruj me ntsis tswj kev ntsuas, raws li nws yuav tsum ua tau raws li cov qauv tshwj xeeb rau cov tshuaj muaj pes tsawg leeg, thaj chaw saum npoo, thiab lwm yam khoom ntawm lub cev. Nws yog feem ntau ntxiv rau cov cement slurry nyob rau hauv me me, xws li 5 mus rau 15 feem pua ntawm qhov hnyav, nyob ntawm seb cov ntawv thov tshwj xeeb thiab cov khoom xav tau.
Specification
| Chemical & Physical Analysis | ASTM C 1240-11 | TS EN 13263: 2005 |
|
/ |
Spec. Ntau zaus | Spec. Ntau zaus |
|
SiO2(%) |
>92. {1}}MT
|
>92.0 Txhua lub lim tiam |
| 3 (%) | / | <3.0 Weekly |
| Cl (%) | / | <0.3 Weekly |
| Dawb CaO (%) | / | <1.0 Weekly |
| Dawb Si (%) | / | <0.4 Monthly |
| Alkalies (raws li sib npaug Na2O feem pua) | Qhia 300MT | / |
| Moisture (%) | <1.0 300MT | / |
| Poob ntawm Ignition, LOI (%) | <4.0 300MT | <4.0 Weekly |
| Qhov chaw tshwj xeeb (BET -M2 /GRAM) |
>18 2200MT/3 lub hlis | 15-35 Txhua hli |
| Qhov ceev (kg / m3) | Qhia 300MT | / |
| Pozz.Activity Index(%) - 7 hnub ceev kho | >110 2200MT/3 lub hlis | / |
| Pozz.Activity Index(%) - 28 hnub ceev kho | / | >100 Lub Hlis |
| Khaws rau ntawm 45 micron sieve (feem pua) | <10 3 00MT | |
| Variation ntawm avg.retained ntawm 45 micron (%) | <2 avg.of last 10 tests | |
| Qhov ceev (kg / m3 ) |
Qhia 300MT |
Khoom Description
1. Silica Fume rau Roj thiab Gas Well Cementing yog ib qho kev ua tau zoo ntawm cov pob zeb hauv av uas tau tsim tshwj xeeb rau kev siv roj thiab roj zoo cementing.
2.Silica Fume rau Roj thiab Gas Well Cementing yog ib qho pozzolan reactive heev, uas txhais tau hais tias nws reacts nrog calcium hydroxide los tsim cov cementitious ntxiv.
3. Cov khoom no yog cov nplua-grained, uas tso cai rau nws nkag mus tob rau hauv cov pores thiab nplua tawg ntawm cov cement matrix.
4.Silica Fume rau Roj thiab Gas Well Cementing pab txhawb rheology zoo heev, uas tso cai rau kom meej meej tso ntawm cov cement nyob rau hauv lub wellbore.
5.Cov khoom no muaj qhov tsis tshua muaj permeability, uas pab tiv thaiv cov pa tawm ntawm cov pa thiab cov kua dej los ntawm lub qhov dej mus rau hauv ib puag ncig formations.
Cim npe nrov: silica fume rau roj thiab roj zoo cementing
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Koj Tseem Yuav Zoo Li
