Lub sealing tov tsis ua ntsiag to, thiab thaum nws ua, qhov tshwm sim nce los ntawm kev tsim khoom ploj mus rau tag nrho cov kev tswj kom zoo. Downhole seals raug ib txhij rau hydrogen sulfide, carbon dioxide, methane, concentrated brine, drilling av nkos, thiab ua tiav cov kua, tag nrho thaum tuav sib txawv siab nyob rau hauv ib tug me me elastomer lub cev ntawm kub uas niaj zaus tshaj 200 degree. Kev xaiv qhov tsis ncaj ncees lawm rau txawm tias ib qho ntawm cov neeg ua haujlwm no ua rau qhov ua tsis tiav ntxov ntsuas hauv lub lis piam es tsis yog xyoo. Qhov no yog vim li cas niaj hnub kev sib khi kev daws teeb meem tau txhais tsawg dua los ntawm ib hom polymer thiab ntau dua los ntawm chemistry engineered rau hauv lub compound, crosslink network uas tuav nws ua ke, thiab cov ntaub ntawv tsim nyog ua pov thawj nws muaj sia nyob rau qhov kev pab cuam.
Hydrogenation Chemistry thiab H2S Resistance
Lub pob txha ntawm nruab nrab -ntau qhov kev sib khi ua haujlwm yog hydrogenated nitrile butadiene roj hmab, tsim los ntawm saturating ntau dua 95 feem pua ntawm ob daim ntawv cog lus hauv thawj nitrile polymer. Vim tias hydrogen sulfide tawm tsam cov pa roj carbon tsis zoo- carbon bonds nyiam, cov kauj ruam hydrogenation no tshem tawm cov tshuaj lom neeg tsis muaj zog thaum khaws cov ntsiab lus acrylonitrile, feem ntau 36 mus rau 44 feem pua, uas muab cov roj ua haujlwm thiab lub zog txhua yam. Kev sim kuaj tom qab NACE TM0187 qhia tau hais tias hydrogenated compounds khaws ntau tshaj 80 feem pua ntawm lub zog tensile qub tom qab 168 teev ntawm kev raug H2S-saturated hydrocarbon ntawm qhov kub siab, ib theem khaws cia uas cov khoom siv nitrile tsis tuaj yeem ncav cuag.
Hydrogenation tshem tawm ob - cov chaw sib cog lus tsom los ntawm sulfide nres
Acrylonitrile qib ntsuas cov roj swell tiv thaiv qis - qhov kub thiab txias
Rapid Gas Decompression thiab FKM txwv
Kev sib tw siab yog qhov txaus ntshai rau cov ntsaws ruaj ruaj li tshuaj tua kab mob. Thaum cov roj yaj yaj mus rau hauv lub elastomer nyob rau hauv lub siab siab thiab lub qhov dej yog los ntshav sai sai, cov roj absorbed nthuav dav hauv cov roj hmab matrix, tsim cov hlwv thiab cov kab nrib pleb uas ua rau lub siab ciam teb. Fluoroelastomer tebchaw, txawm hais tias tsis muaj tshuaj lom neeg, tshwj xeeb tshaj yog qhov ua rau muaj kev puas tsuaj rau cov pa roj sai sai hauv kev pabcuam roj, uas yog vim li cas cov kev pabcuam tsim nyog rau cov qhov dej roj tam sim no xav tau cov ntaub ntawv RGD kuaj thoob plaws lub voj voog rov qab. Anti- qib decompression suav nrog hloov kho cov kab sib txuas sib txuas thiab cov pob khoom muab tub lim uas cuam tshuam kev nthuav tawm tawg thaum lub siab tso tawm tam sim ntawd.
RGD-cov ntaub ntawv tsim nyog muaj sia nyob rov qab kaw thaum muaj xwm txheej ceev thiab cov xwm txheej tawg
Cov txheej txheem kuaj simulate phem tshaj -cov ntaub ntawv los ntshav- tawm tus nqi ua ntej lub foob nkag mus rau kev pabcuam
Extreme-Service Compounds rau Ultra-HPHT Wells
Nyob rau sab saum toj ntawm lub hnab ntawv kev ua tau zoo, perfluoroelastomer thiab lwm yam siab - fluorine cov ntaub ntawv txuas lub peev xwm sib khi tshaj 232℃nrog qhov sib txawv ntawm qhov ntsuas siab tshaj 138 MPa, thiab cov qib tshwj xeeb zam cov hydrogen sulfide concentrations siab dua 20 feem pua. Cov tebchaw no tau tshwj tseg rau ultra-siab-siab siab- qhov dej kub qhov twg lub foob tsis ua haujlwm puas tsuaj, thiab lawv nquag ua ke nrog cov hlau thaub qab uas tiv thaiv extrusion li elastomer hardness poob ntawm qhov kub siab. Tus nqi ntawm cov ntaub ntawv no yog tsim nyog los ntawm qhov tseeb tias lawv coj mus rau qhov kev xav tau tshaj plaws.
Perfluoroelastomer qib txhawb kev sib khi ruaj khov siab dua 232 degree
Hlau thaub qab rings nqa extrusion loads raws li cov elastomer softens nyob rau hauv kev pab cuam
Daim ntawv thov -Kev sib khi tshwj xeeb hauv cov cuab yeej tswj tau zoo
Cov kev cai foob sib txawv ntawm cov khoom siv, thiab kev xaiv kom raug yog nyob ntawm lub voj voog ua haujlwm tiag tiag es tsis yog qhov ntsuas kub ib zaug. Blowout inhibiter sealing cov ntsiab lus yuav tsum kaw lub qhov dej tsis pub dhau lub vib nas this ntawm kev ncaws thiab tuav tag nrho lub qhov dej kom txog thaum lub ncaws tawm tawm, tab sis lawv ua haujlwm ntawm qhov sib piv ntawm qhov kub thiab txias nyob ze ntawm - dej hiav txwv ib puag ncig. Packer ntsiab lus, los ntawm qhov sib txawv, yuav tsum tswj cov kev sib cais ntawm lub xyoo tiv thaiv cov kua dej ntawm qhov chaw hauv qab, thov kom muaj qhov sib txawv ntawm qhov o tsis kam, extrusion tsis kam, thiab tshuaj lom neeg sib xyaw. Kev sib xyaw ua ke ntawm chemistry rau daim ntawv thov tshwj xeeb txuas ntxiv lub neej kev pabcuam thiab txo cov kev cuam tshuam ntawm lub qhov dej lub neej.
BOP cov ntsiab lus tseem ceeb yog qhov tseem ceeb ntawm kev kaw nrawm thiab kev ceev ceev tshaj qhov kub siab tshaj qhov ua siab ntev
Cov khoom ntim khoom tseem ceeb ua ntej ntev - lub sijhawm tshuaj lom neeg ruaj khov raws li tsim tawm - cov dej raug
Xaus
Cov kev daws teeb meem hauv downhole sealing cov kev daws teeb meem yog cov khoom siv los ntawm kev xav txog kev tshawb fawb: hydrogenation chemistry rau kev pabcuam qaub, tiv thaiv -decompression crosslink systems rau roj qhov dej, thiab siab -fluorine compounds rau ultra-HPHT ib puag ncig. Tuam Tshoj Vigor muaj cov ntaub ntawv ua tiav cov ntaub ntawv npog O-rings, cov khoom ntim khoom, thiab tswj cov ntsaws ruaj ruaj, nrog cov khoom sib xyaw tsim nyog rau cov qauv thoob ntiaj teb uas tswj hwm qhov kev pabcuam hnyav hnyav. Engineering lub foob rau lub qhov dej, tsis yog qhov thim rov qab, yog dab tsi ua kom lub siab ciam ciam rau lub neej ntawm cov khoom vaj khoom tsev.
Yog xav paub ntxiv, thov hu rau Tuam Tshoj Vigor ntawm info@vigorpetroleum.com lossis hu rau +0086 29 81161513.
