Hauv kev ua haujlwm cementing, kev sim yog txoj hauv kev tseem ceeb kom nkag siab tias lub slurry yuav ua tau zoo npaum li cas hauv qhov dej.Yam Kev Ntsuas NtsuasFluid Loss Additive Kev ua tau zoo?Lawv qhia li cas cov additive tswj dej poob thiab ua kom cov slurry ruaj khov.
1. Vim li cas API Fluid Loss Test yog txoj hauv kev tshaj plaws?
API cov kua dej poob yog cov qauv siv thoob ntiaj teb.
Nws ntsuas ntau npaum li cas dej dhau los ntawm lub lim nyob rau hauv lub siab ruaj khov thiab kub.
Qhov kev ntsuam xyuas no qhia tau hais tias cov kua theem nrawm npaum li cas tawm ntawm cov slurry thiab yuav muaj zog npaum li cas lub ncuav mog qab zib lim.
Vim tias nws yog qhov yooj yim thiab rov ua dua, nws yog siv rau ob qho tib si kev tsim qauv thiab kev kuaj xyuas teb.
2. HPHT Fluid Loss Test Ua Haujlwm li cas hauv High -Tub Kub Qhov Dej?
Kev ntsuas HPHT (High-High Siab-Tsub)) simulates qhov dej tob.
Hauv qhov kev sim no, cov slurry tau muab tso rau hauv ib lub xov tooj ntawm tes uas ua kom sov thiab ua kom lub zog kom haum rau qhov chaw downhole.
Qhov no tso cai rau cov engineers pom tias cov khoom siv ntxiv ua haujlwm li cas thaum raug mob hnyav.
Qee cov additives qhia qhov ua tau zoo ntawm qhov kub thiab txias tab sis tsis muaj zog hauv HPHT.
Qhov no yog vim li cas cov qhov dej siab siab ib txwm xav tau kev kuaj HPHT.
3. Qhov txawv ntawm API thiab HPHT Test yog dab tsiFluid Loss AdditiveCov txiaj ntsig?
Nov yog lub rooj sib piv yooj yim los qhia seb cov txiaj ntsig yuav hloov pauv li cas rau tib lub slurry:
| Hom kev xeem | Kub | Siab | Cov kua dej poob | Sau ntawv |
|---|---|---|---|---|
| API | 90 degree | Tsawg | 80ml ib | Kev ua tau zoo |
| HPHT | 150 degree | Siab | 180 ml ib | Additive tsis muaj zog |
| HPHT | 180 degree | Siab heev | 240 ml ib | Cov tshuaj ntxiv tuaj yeem tawg |
Cov lus no qhia tau hais tias yog vim li cas thiaj li yuav tsum tau kuaj HPHT thaum ua haujlwm hauv qhov dej tob, kub.
4. Lub Filter ncuav mog qab zib zoo li cas txhawb kev soj ntsuam kev poob dej?
Lub ncuav mog qab zib lim ntsuas ntsuas qhov tuab, kev ntxhib los mos, thiab lub zog ntawm lub ncuav mog qab zib lim tau tsim thaum pom.
Cov kua dej zoo ntxiv ua rau nyias, du, thiab muaj zog ncuav mog qab zib uas thaiv cov kua dej.
Ib qho khoom noj tsis zoo ua rau lub ncuav mog qab zib tsis muaj zog lossis tuab, uas tso cai rau cov kua ntau dhau.
Los ntawm kev tshuaj xyuas lub ncuav mog qab zib zoo, cov kws tsim khoom tuaj yeem nkag siab tsis yog cov kua dej ntau npaum li cas tab sisvim li casnws ploj lawm.
5. Lub luag haujlwm ntawm Kev Ntsuas Rheology ua haujlwm li cas hauv kev ua tau zoo ntxiv?
Kev ntsuam xyuas Rheology ntsuas qhov tuab npaum li cas los yog yooj yim npaum li cas los tso cov slurry.
Txawm hais tias rheology tsis yog ib qho kev sim ua kua dej ncaj qha, nws cuam tshuam rau kev ua tau zoo.
Ib qho slurry uas tuab heev tuaj yeem thaiv cov ncuav mog qab zib lim.
Ib qho slurry uas nyias dhau yuav poob dej sai dua.
Hauv qab no yog ib lub rooj yooj yim uas qhia txog yuav ua li cas rheology hloov nrog ntau qib ntxiv:
| Kev noj tshuaj | Yas Viscosity (cP) | Yield Point (lb / 100 ft²) | Qhov cuam tshuam rau kev poob dej |
|---|---|---|---|
| Tsawg | 40 | 15 | Kev poob dej ntau |
| Nruab nrab | 55 | 20 | Sib npaug |
| Siab | 80 | 32 | Zoo tswj tab sis tuab slurry |
Rheology pab engineers xaiv ib tug npaum li cas uas muab kev sib npaug.
6. Vim li cas cov kev ntsuam xyuas kev ruaj ntseg pab kom paub meej tias qhov ua tau zoo ntxiv?
Kev ntsuas kev ruaj ntseg xyuas seb cov slurry sib cais, nyob, lossis tsim cov dej dawb.
Yog hais tias cov slurry sib cais, cov kua dej additive tej zaum yuav tsis dispersing zoo.
Yog tias muaj dej dawb, cov tshuaj ntxiv yuav tsis tiv thaiv cov kua theem.
Cov kev ntsuam xyuas no muab ib daim duab tiav ntawm slurry cwj pwm thiab qhia seb cov additive puas ua haujlwm zoo nyob rau hauv qhov chaw downhole.
Lawv kuj pab tiv thaiv kev tsiv teb tsaws ntawm cov pa roj, poob kev ncig, thiab cov cement tsis muaj zog.
Xaus
Kua dej poob additiveefficiency tsis tuaj yeem txiav txim los ntawm ib qho kev sim ib leeg. API cov kua dej poob qis qhia tau hais tias kev ua haujlwm yooj yim, HPHT cov kev sim qhia tob - tus cwj pwm zoo, kev kuaj rheology qhia cov dej ntws, kev ntsuas kev ruaj ntseg qhia kev sib cais, thiab lim cov ncuav mog qab zib piav qhia vim li cas cov kua dej hla lossis nres. Los ntawm kev siv tag nrho cov kev xeem no ua ke, cov kws tsim khoom tuaj yeem tsim kom muaj kev nyab xeeb, ruaj khov, thiab muaj zog cement slurry rau txhua qhov dej.
