Chithandizo cha cryogenic cha PDC cutter

PDC cutter ndi chinthu chophatikizika chokhala ndi zinthu zabwino kwambiri zopezedwa ndi sintering diamondi ufa wokhala ndi simenti ya carbide gawo lapansi pogwiritsa ntchito ukadaulo wa kutentha kwambiri komanso kuthamanga kwambiri (HTHP).

Chodulira cha PDC chimakhala ndi matenthedwe abwino kwambiri, kuuma kopitilira muyeso, komanso kukana kuvala, komanso mphamvu yayikulu, kulimba kwamphamvu, komanso kusavuta kuwotcherera.

Chosanjikiza cha diamondi cha polycrystalline chimathandizidwa ndi gawo lapansi la simenti la carbide, lomwe limatha kuyamwa kutsitsa kwakukulu ndikupewa kuwonongeka kwakukulu panthawi yantchito. Chifukwa chake, PDC idagwiritsidwa ntchito kwambiri popanga zida zodulira, ma geological and oil and gas pobowola zitsime, ndi zida zina zosavala.

Pobowola mafuta ndi gasi, zopitilira 90% yazoboola zonse zimamalizidwa ndi ma PDC bits. PDC bits nthawi zambiri amagwiritsidwa ntchito pobowola miyala yofewa kapena yapakati. Zikafika pakubowola mozama, pali zovuta za moyo waufupi komanso kutsika kwa ROP.

M'mapangidwe ozama kwambiri, ntchito zogwirira ntchito za PDC drill bit ndizovuta kwambiri. Mitundu yayikulu yakulephera kwachidutswa chophatikizika ndikuphwanya ma macro-fractures monga mano osweka ndi kung'ambika komwe kumachitika chifukwa cha kubowola komwe kumalandira katundu wambiri, komanso kutentha kwakukulu kwa dzenje kumayambitsa zidutswa zamagulu. Kuchepetsa kukana kuvala kwa pepala kumapangitsa kuvala kwamafuta amtundu wa PDC. Kulephera komwe kwatchulidwa pamwambapa kwa pepala lophatikizana la PDC kudzakhudza kwambiri moyo wake wautumiki komanso kubowola bwino.

Kodi Cryogenic Treatment ndi Chiyani?

Chithandizo cha Cryogenic ndikuwonjezera kutentha kwanthawi zonse. Imagwiritsa ntchito nayitrogeni wamadzimadzi ndi mafiriji ena monga zoziziritsira kuziziritsa ku zinthu zoziziritsa kuzizira mpaka kutentha kwa chipinda (-100~-196°C) kuti ziwonjezeke kugwira ntchito kwawo.

Maphunziro ambiri omwe alipo awonetsa kuti chithandizo cha cryogenic chimatha kusintha kwambiri makina achitsulo, ma aloyi a aluminiyamu, ndi zida zina. Pambuyo pa chithandizo cha cryogenic, chinthu cholimbitsa mvula chimapezeka muzinthu izi. Chithandizo cha cryogenic chikhoza kupititsa patsogolo mphamvu zosinthika, kukana kuvala, ndi kudula kwa zida za carbide, zomwe zimatsagana ndi kusintha kwa moyo. Kafukufuku wofunikira wasonyezanso kuti chithandizo cha cryogenic chikhoza kupititsa patsogolo mphamvu ya static ya diamondi, chifukwa chachikulu cha kuwonjezeka kwa mphamvu ndi kusintha kwa chikhalidwe chotsalira cha nkhawa.

Koma, kodi titha kukonza magwiridwe antchito a PDC cutter kudzera mu chithandizo cha cryogenic? Pakadali pano pali maphunziro ochepa oyenera.

Njira yothandizira cryogenic

Njira yothandizira cryogenic kwa ocheka a PDC, ntchito zake ndi:

(1) Ikani odula a PDC kutentha kwa firiji mu ng'anjo ya cryogenic;

(2) Kuyatsa ng'anjo cryogenic mankhwala, pochitika madzi asafe, ndi ntchito kutentha ulamuliro kuchepetsa kutentha mu cryogenic mankhwala ng'anjo kuti -30 ℃ pa mlingo wa -3 ℃/mphindi; pamene kutentha kufika -30 ℃, ndiye kuchepetsa -1 ℃/mphindi. Kuchepetsa mpaka -120 ℃; pambuyo kutentha kufika -120 ℃, kuchepetsa kutentha kwa -196 ℃ pa liwiro la -0.1 ℃/mphindi;

(3) Sungani kwa maola 24 pa kutentha kwa -196 ° C;

(4) Kenako onjezerani kutentha kwa -120 ° C pa mlingo wa 0.1 ° C / min, kenaka muchepetse mpaka -30 ° C pa mlingo wa 1 ° C / min, ndipo potsiriza muchepetse kutentha kwapakati pa mlingo. 3°C/mphindi;

(5) Bwerezani ntchito pamwambapa kawiri kuti mutsirize chithandizo cha cryogenic cha odula a PDC.

Wodula wa PDC wopangidwa ndi cryogenically komanso wodula wa PDC yemwe sanayesedwe adayesedwa kuti awonetsere kuchuluka kwa gudumu lopera. Zotsatira zoyeserera zidawonetsa kuti mavalidwe anali 3380000 ndi 4800000 motsatana. Zotsatira za mayesero zinasonyeza kuti pambuyo pa kuzizira kwambiri Kuvala kwa chiwombankhanga cha PDC chozizira kumakhala kochepa kwambiri kuposa chodula cha PDC popanda chithandizo cha cryogenic.

Kuphatikiza apo, mapepala opangidwa ndi cryogenically komanso osagwiritsidwa ntchito a PDC amawotcherera ku matrix ndikubowoleredwa kwa 200m m'gawo lomwelo la zitsime zoyandikana ndi magawo omwewo akubowola. Makina obowola ROP a kubowola akuwonjezeka ndi 27.8% pogwiritsa ntchito PDC yokhala ndi cryogenically poyerekeza ndi yosagwiritsa ntchito chodula cha PDC chopangidwa ndi cryogenically.

Mukuganiza bwanji za chithandizo cha cryogenic cha PDC cutter? Takulandirani kutisiyira ndemanga zanu.

Kwa ocheka a PDC, mutha kutifikira kudzera pa imelo pa [email protected].