Unyango lwe-cryogenic lwe-PDC cutter

I-PDC cutter yimathiriyeli edibeneyo eneempawu ezigqwesileyo ezifunyenwe ngokutshiza umgubo wedayimani ngesamente ye-carbide substrate usebenzisa ubushushu obuphezulu kunye noxinzelelo oluphezulu (HTHP) ubuchwepheshe.

I-PDC cutter ine-conductivity enkulu ye-thermal, ubulukhuni obuphezulu kakhulu, kunye nokumelana nokunxiba, kunye namandla aphezulu, ukuqina kwempembelelo ephezulu, kunye nokulula ukuwelda.

I-polycrystalline diamond layer ixhaswa yi-carbide substrate ene-cemented, enokuthi ithathe impembelelo enkulu yokulayisha kwaye igweme umonakalo omkhulu ngexesha lomsebenzi. Ke, iPDC yayisetyenziswa ngokubanzi ukwenza izixhobo zokusika, ijoloji kunye neoyile kunye nerhasi yokomba amasuntswana, kunye nezinye izixhobo ezinganxibiyo.

Kwintsimi yokugrumba i-oyile kunye negesi, ngaphezu kwe-90% ye-footage epheleleyo yokomba igqitywe ngamasuntswana e-PDC. Amasuntswana ePDC aqhele ukusetyenziselwa ukombiwa kwelitye elithambileyo ukuya kweliphakathi. Xa kufikwa kwi-drilling enzulu, kusekho iingxaki zobomi obufutshane kunye ne-ROP ephantsi.

Ekubunjweni okunzulu, iimeko zokusebenza ze-PDC drill bit zinzima kakhulu. Iifom eziphambili zokungaphumeleli kweqhekeza elidibeneyo ziquka i-macro-fractures efana namazinyo aphukileyo kunye nokuqhawula okubangelwa yimpembelelo ebangelwa yi-drill bit efumana umthwalo omkhulu wempembelelo, kunye nobushushu obugqithisileyo bomngxuma ophantsi obangela amaqhekeza adibeneyo. Ukuncipha kokunganyangeki kwephepha kubangela ukunxitywa kwe-thermal yephepha elihlanganisiweyo lePDC. Ukungaphumeleli okukhankanywe ngasentla kwephepha elihlanganisiweyo lePDC kuya kuchaphazela kakhulu ubomi bayo benkonzo kunye nokusebenza kakuhle kokomba.

Yintoni unyango lweCryogenic?

Unyango lwe-Cryogenic lukwandiswa kobushushu obuqhelekileyo. Isebenzisa initrogen engamanzi kunye nezinye izikhenkcezisi njengezixhobo zokupholisa izixhobo ukuya kubushushu obungaphantsi kwegumbi (-100~-196°C) ukunyusa ukusebenza kwazo.

Izifundo ezininzi ezikhoyo zibonise ukuba unyango lwe-cryogenic lunokuphucula kakhulu iipropati ze-mechanical of steel, i-aluminium alloys, kunye nezinye izinto. Emva konyango lwe-cryogenic, i-precipitation-yomeleza into eyenzekayo kulezi zixhobo. Unyango lwe-cryogenic lunokuphucula amandla e-flexural, ukuxhatshazwa kokugqoka, kunye nokusika ukusebenza kwezixhobo ze-carbide ze-cemented, ezihamba kunye nokuphucula okusebenzayo kobomi. Uphando olufanelekileyo luye lwabonisa ukuba unyango lwe-cryogenic lunokuphucula amandla oxinzelelo lwe-static lwamasuntswana edayimani, esona sizathu siphambili sokunyuka kwamandla kukutshintsha kwemeko yoxinzelelo olushiyekileyo.

Kodwa, ngaba sinokuphucula ukusebenza komsiki wePDC ngonyango lwe-cryogenic? Ngeli xesha kukho izifundo ezimbalwa ezifanelekileyo.

Indlela yonyango ye-cryogenic

Indlela yonyango ye-cryogenic yabasiki bePDC, imisebenzi yile:

(1) Beka i-PDC cutters kwiqondo lokushisa kwigumbi kwiziko lokucoca i-cryogenic;

(2) Vula iziko lonyango lwe-cryogenic, udlule kwi-nitrogen engamanzi, kwaye usebenzise ulawulo lobushushu ukunciphisa ubushushu kwiziko lonyango lwe-cryogenic ukuya kwi-30℃ ngesantya se -3℃/min; xa iqondo lobushushu lifikelela -30℃, liya kuthi ke linciphise libe ku -1℃/min. Nciphisa ukuya -120℃; emva kokuba ubushushu bufikelele -120 ℃, nciphisa ubushushu ukuya -196 ℃ ngesantya -0.1℃/min;

(3) Yigcine iiyure ezingama-24 kwiqondo lobushushu eliyi--196°C;

(4) Emva koko wandise iqondo lobushushu ukuya kwi -120 ° C kwiqondo le-0.1 ° C / min, uze uhlehlise ukuya ku -30 ° C ngesantya se-1 ° C / min, kwaye ekugqibeleni unciphise kwiqondo lokushisa ngeqondo. ye-3°C/min;

(5) Phinda usebenze ngasentla kabini ukugqiba unyango lwe-cryogenic lwe-PDC cutters.

I-CDC cutter ye-cryogenically ephathwayo kunye ne-PDC cutter engaphathwanga yavavanywa umlinganiselo wokunxiba wevili lokusila. Iziphumo zovavanyo zibonise ukuba umlinganiselo wokunxiba wawuyi-3380000 kunye ne-4800000 ngokulandelelanayo. Iziphumo zovavanyo zibonise ukuba emva kokupholisa okunzulu Umlinganiselo wokunxiba we-PDC cutter ophethwe ngokubanda uphantsi kakhulu kune-PDC cutter ngaphandle konyango lwe-cryogenic.

Ukongeza, amacwecwe ahlanganisiweyo e-PDC aphathwe nge-cryogenically kwaye angaphathwanga adityaniswe kwi-matrix kwaye agrunjwa i-200m kwicandelo elifanayo lamaqula akufutshane kunye neeparitha ezifanayo zokomba. I-ROP ye-mechanical drilling ye-drill bit yokwenyuka kwe-27.8% isebenzisa i-PDC ephathwa nge-cryogenically xa kuthelekiswa naleyo ingasebenzisi i-CDC cutter ye-cryogenically.

Ucinga ntoni ngonyango lwe-cryogenic lwe-PDC cutter? Wamkelekile usishiyele izimvo zakho.

Kubasiki bePDC, ungasifumana nge-imeyile ku-zzbt@zzbetter.com.