Tharollo e sebetsang hantle bakeng sa ho cheka ho qhomisoa ha merafo ke efe?

Merafong, kaho ea liliba tsa metsi, tlhahlobo ea jeoloji le merero e meng ea boenjiniere,phunya melamuke likarolo tsa mantlha tse hokahanyang lisebelisoa tsa ho cheka le likotoana tsa ho cheka. Matla a bona, ho nepahala le ho ikamahanya le maemo ho khetholla ka ho toba katleho ea ho cheka, polokeho ea kaho le bophelo ba tšebeletso. DRILLMORE e tsepamisitse maikutlo ho R&D le ho etsa lisebelisoa tsa ho cheka mafika, ho qala letoto la lithupa tse 'ne bakeng sa maemo a fapaneng a ts'ebetso, ho akaretsa maemo a fapaneng ho tloha masobeng a sa tebang ho isa ho a tebileng, ho cheka ho tloaelehileng ho khutlisa ts'ebetso ea ho potoloha, ho fana ka ts'ehetso e tsitsitseng le e tšepahalang ea ho cheka bakeng sa kaho ea boenjiniere.

Li-drill tsa li-tri-cone ke likarolo tsa mantlha tsa matla a lisebelisoa tse kholo tsa ho cheka, tse etselitsoeng ka ho khetheha bakeng sa ho cheka ka mekoti e tebileng ka mokhoa o tsitsitseng, ho hanyetsa tšusumetso e matla le bophelo bo bolelele ba tšebeletso. Ka bophara ba ka ntle ho tloha ho 146mm ho ea ho 273mm, li lumellana le litlhaloso tse sa tšoaneng tse kopanetsoeng ho tloha 4"BECO ho ea ho 8" BECO,' me bolelele bo sebetsang bo ka fihla ho 10668mm. E entsoe ka thepa e tala ea boleng bo phahameng e nang le phekolo e kopantsoeng ea mocheso, likhoele li entsoe ka mokhoa o nepahetseng ke CNC 'me li hlahlojoa ka li-gauge tsa litsebi, ho netefatsa hore ho na le tšebelisano e tiileng le phetisetso e tsitsitseng ea torque. Li sebelisoa haholo mererong e meholo ea ho cheka e kang merafo, liliba tsa metsi le matla a mocheso oa mocheso.

Melamu ea ho cheka seliba sa metsi e etselitsoe seliba sa metsi le nts'etsopele ea seliba sa geothermal, e loketseng ts'ebetso e tebileng ea limithara tse 200-1500. Ka bophara ba ka ntle ho tloha ho 76mm ho isa ho 114mm, li tsamaisana le manonyeletso a tloaelehileng a kang API 2 3/8REG le NC26. 'Mele oa liphaephe o entsoe ka tšepe ea boleng bo phahameng e sa khathaleng,' me molamu o halefisoa ke ho futhumala ha maqhubu a mahareng ho eketsa sebaka sa welding. Kamora ho cheselletsa likhohlano, kalafo ea ho futhumatsa e etsoa ho netefatsa matla a weld. E na le torque e tlase ea ho potoloha, ho hanyetsa hanyane le ts'ebetso e ntle ea ho tiisa, e fihlela litlhoko tsa ho cheka ha metsi le khase, ho ntlafatsa haholo ts'ebetso ea kaho ea liliba tsa metsi.

Lithupa tse kopantsoeng tsa merafo li kopanya mesebetsi ea ho cheka le ea phetisetso ea matla, e loketseng lisebelisoa tse bulehileng tsa li-hydraulic open-pit rigs, li-drigs tsa DTH tsa crawler le lisebelisoa tse ling. Ho amohela theknoloji ea welding kapa friction welding, e kopantsoeng le tšepe e matla ea alloy le kalafo ea mocheso e timang le e futhumatsang, e na le mokhathala o motle le ho hanyetsa matla. Ka bophara ba ka ntle ho tloha ho 64mm ho ea ho 127mm, ba tšehetsa maemo a API le lihlopha tsa BECO, tse nang le bolelele bo sebetsang ba 3000-6000mm. Li loketse maemo a ts'ebetso a rarahaneng joalo ka mekoti ea ho phatloha, masoba a anchoring a letsoapong le masoba a tlhahlobo ea jeoloji, 'me a ka sebetsa ka botsitso nako e telele libakeng tse thata.

Lithupa tsa ho cheka ka morao li sebelisa moralo o mocha oa likanale tse peli, tse hlokomelang ho tsoa ha slag bohareng le ente ea khase ea annulus, e felisang tšilafalo ea mantlha, mathata a ho khomarela le tahlehelo. Ka lisampole tsa botšepehi tse fetang 95% le keketseho ea 40% ea katleho ea ho cheka, ke khetho e nepahetseng bakeng sa lipatlisiso tsa liminerale, didiba tsa methane tse ka tlas'a lefatše le mashala. Ka bophara ba ka ntle ho tloha ho 89mm ho ea ho 127mm, li lumellana le li-joints tse tloaelehileng tsa Remet le API, tse nang le botenya ba lerako le ka tšeptjoang ka hare le ka ntle, li fokotsa haholo litšenyehelo tsa kaho le likotsi.