Zakale ndi zamakono za Cone bit

Chiyambireni kuyambika koyamba mu 1909, kachulukidwe kakang'ono kamakhala kogwiritsidwa ntchito kwambiri padziko lonse lapansi. Tricone bit ndiye chobowola chodziwika bwino chomwe chimagwiritsidwa ntchito pobowola mozungulira. Kubowola kwamtunduwu kuli ndi mapangidwe osiyanasiyana a mano ndi mitundu yolumikizirana, kotero kumatha kusinthidwa kukhala mitundu yosiyanasiyana yopangidwira. Pobowola, mawonekedwe oyenera a cone bit amatha kusankhidwa moyenera malinga ndi mawonekedwe a mapangidwe obowola, ndipo liwiro lobowola lokwanira komanso zowonera pang'ono zitha kupezeka.

Mfundo yogwira ntchito ya cone bit

Chidutswa cha cone chikagwira ntchito pansi pa dzenjelo, pang'ono chonsecho chimazungulira mozungulira kagawo kakang'ono, komwe kumatchedwa revolution, ndipo ma cones atatu amagudubuzika pansi pa dzenjelo molingana ndi axis yawoyawo, yomwe imatchedwa kuzungulira. Kulemera kwake komwe kumayikidwa pamwala kudzera m'mano kumapangitsa kuti thanthwe lithyoke (kuphwanya). Pogubuduza, chulucho chimalumikizana pansi pa dzenje ndi mano amodzi ndi mano awiri, ndipo malo apakati a cone amakhala okwera komanso otsika, zomwe zimapangitsa kuti pang'onopang'ono apange kugwedezeka kwautali. Kugwedezeka kwautali kumeneku kumapangitsa kuti chingwe chobowolacho chipanikizike ndi kutambasula mosalekeza, ndipo chingwe chobowola chotsika chimatembenuza mapindikidwe ozungulirawa kukhala mphamvu yolumikizira mapangidwe ake kudzera m'mano kuti athyole thanthwe. Kukhudza uku ndi kuphwanya ndi njira yayikulu yophwanyira miyala ndi cone bit.

Kupatula kukhudza ndi kuphwanya mwala pansi pa dzenje, kachidutswa kakang'ono kamene kamatulutsanso kumeta ubweya pamwala womwe uli pansi pa dzenjelo.

Kugawika ndi kusankha kwa cone bit

Pali opanga ambiri a ma cone bits, omwe amapereka mitundu yosiyanasiyana ya ma bits. Pofuna kuwongolera kusankha ndi kugwiritsa ntchito ma cone bits, bungwe la International Institute of Drilling Contractors (IADC) lapanga mulingo wogwirizana wamagulu ndi manambala a ma koni padziko lonse lapansi.