I-Carbide Ball Teeth in Oil and Gas Drilling

I.Izinselelo Zokubhoboza kanye Nokwenyuka Kwamazinyo Ebhola LeCarbide

Njengoba ukuhlola nokuthuthukiswa kukawoyela negesi kusondela ekwakhekeni okujulile nokuyinkimbinkimbi, ubunjiniyela bokumba bubhekana nezinselelo eziningi ezinjengokuqina kokuqina kwamadwala, ukuhuzuka okuqinile, nemijikelezo emide yokumba. Ukuvela nokuphindaphindwa kwezobuchwepheshe kwamazinyo ebhola le-carbide, ngokusebenza kwawo okuvelele, kubangela uguquko olusebenzayo ekumbiweni kukawoyela negesi, okuhlinzeka ngokusekela okubalulekile embonini ukuze inqamule izithiyo zentuthuko.

II.Izinzuzo Eziyinhloko: Ukuphakama Kwempahla Nokwakheka

Izinzuzo eziyinhloko zamazinyo ebhola le-carbide zivela ezintweni zawo ezibonakalayo eziyingqayizivele kanye nomklamo wesakhiwo. Afakwe nge-high-purity tungsten carbide njenge-matrix nensimbi ye-cobalt njengesibophezelo, anobulukhuni obuphakeme kakhulu kanye nokuqina okuhle kakhulu. Ubulukhuni bazo bungafinyelela ngaphezu kwe-HRC75, futhi amandla abo acindezelayo adlula kude izinto ezivamile zokumba izinyo. Isakhiwo sekhanda lezinyo eliyindilinga noma eliyindilinga singagxilisa ukucindezela kokubhola endaweni yokuxhumana, kufinyelele ukuchotshozwa kwe-"point-to-point" yamatshe aqinile. Uma kuqhathaniswa nemodi yokuchoboza othintana naye phezulu yezinqamuleli zokudonsa ezivamile, ukusebenza kahle kokuchotshozwa kwenyuke ngamaphesenti angaphezu kuka-30%.

III.Ukweqa Okuphawulekayo Kokubhoboza Ngempumelelo

Mayelana nokuthuthukisa ukusebenza kahle kokubhola, amazinyo ebhola le-carbide abonise ukusebenza okuvelele ikakhulukazi. Esizeni sokumba igesi ye-shale ejulile, izingcezu ze-PDC ezishunyekwe ngamazinyo ebhola le-carbide zikhuphule izinga lokungena lisuka kumamitha angu-1.2 ngehora laya kumamitha angu-3.5 ngehora uma liqhathaniswa nezingcezu zedayimane elivamile, okufinyeza umjikelezo wokumba womthombo owodwa ngezinsuku ezingaphezu kwezingu-40. Lokhu kugxumela ekusebenzeni kahle akuveli nje kuphela emandleni awo okuchoboza anamandla kodwa futhi kuyazuzisa ukumelana kwawo nokugqokwa—ezingqimbeni zamatshe abrasive kakhulu, izinga lokuguga kwamazinyo ebhola le-carbide liyi-1/5 kuphela lamazinyo engxubevange yendabuko, ehlisa kakhulu imvamisa yokukhubeka ukuze kushintshwe izingcezu.

IV.Ukulawula Izindleko kanye Nokuguquguquka Kokwakheka Okugcwele

Ukulawulwa kwezindleko kanye nokunwetshwa kokuvumelana nezimo kungobunye isici esibalulekile salokhu kuguquguquka kokusebenza kahle. Impilo ende yesevisi yamazinyo ebhola le-carbide inciphisa ngokuqondile izindleko zokusetshenziswa kancane, inciphisa izindleko zebhithi elilodwa ngo-25% kuya ku-30%. Phakathi naleso sikhathi, ngokulungisa usayizi wokusanhlamvu we-tungsten carbide nokuqukethwe kwe-cobalt, imikhiqizo ingenziwa ngokwezifiso ukuze ivumelane nokwakheka okuhlukile: amazinyo ebhola e-fine-grain alloy afaneleka ukwakheka okuqinile nokuphukayo, kuyilapho imikhiqizo yezinhlamvu eziqinile yenza kangcono ekubunjweni kwepulasitiki, ifinyelela ukuguquguquka okugcwele kusuka ku-sandstone engajulile kuya edwaleni lentaba-mlilo elijulile.

I-V.Ukuthuthukiswa Kwezobuchwepheshe Kwezindawo Ezinhle Kakhulu

Njengoba ukuthuthukiswa kukawoyela negesi kudlulela ezindaweni ezimbi kakhulu ezifana nolwandle olujulile nezindawo ezishisayo, ukuthuthukiswa kobuchwepheshe kwamazinyo ebhola le-carbide akukaze kume. Amazinyo ebhola enziwe nge-gradient entsha abhalansisa ubulukhuni bobuso kanye nokuqina kwangaphakathi ngedizayini yokusatshalaliswa kwe-gradient, ebonisa ukuzinza okuqinile kumazinga okushisa aphezulu ajulile kanye nemithombo yokucindezela okuphezulu. Lokhu kuguquguquka okusebenzayo okuholwa ngamazinyo ebhola e-carbide kuqhuba imboni yokumba uwoyela negesi ukuthi isheshise ibheke esiqondisweni esisebenza kahle, esiyongayo, nesithembekile.