Igwe a na-egwupụta ihe bụ usoro ejikọtara ọnụ nke na-egwu olulu mmiri, dị ka olulu mmanụ ma ọ bụ gas, n'ime ala nke ụwa.
Drilling rigs nwere ike ịbụ nnukwu ụlọ akụrụngwa a na-eji gwuowa olulu mmanụ, ma ọ bụ olulu mmiri na-emepụta gas, Drilling rigs nwere ike ịlele nkwụnye ego ịnweta n'okpuru ala, ule nkume, ala na mmiri dị n'ime ala, ma nwekwara ike iji tinye ihe ndị dị n'okpuru ala, dị ka ihe ndị dị n'okpuru ala, ngwá ọrụ, ọwara ma ọ bụ olulu mmiri. Drilling rigs nwere ike ịbụ ngwa mkpanaaka etinyere na gwongworo, egwu ma ọ bụ ụgbọala na-adọkpụ, ma ọ bụ ala na-adịgide adịgide ma ọ bụ ihe ndị dabere na mmiri (dịka ikpo okwu mmanụ, nke a na-akpọkarị ' rigs mmanụ dị n'ụsọ osimiri 'ọbụlagodi na ha enweghị igwe na-egwupụta ihe).
Obere igwe na-egwuputa ihe na obere obere bụ mkpanaka, dị ka nke a na-eji na-egwupụta ihe nrịbama, oghere mgbawa, olulu mmiri na nyocha gburugburu ebe obibi. Nnukwu rigs nwere ike igwu mmiri site na puku kwuru puku mita nke eriri ụwa, na-eji nnukwu "nnukwu nfuli" na-ekesa apịtị apịtị (slurry) site na ihe nkedo na elu casing annulus, maka oyi na iwepụ "mkpụcha" mgbe a na-egwupụta olulu mmiri.
Ndị na-ebuli elu n'ụgbọ mmiri ahụ nwere ike ibuli ọtụtụ narị tọn ọkpọkọ. Akụrụngwa ndị ọzọ nwere ike ịmanye acid ma ọ bụ ájá n'ime ọdọ mmiri iji mee ka mmịpụta mmanụ ma ọ bụ gas; na n'ebe ndị dịpụrụ adịpụ enwere ike ịnwe ebe obibi na-adịgide adịgide na nri maka ndị ọrụ (nke nwere ike ịbụ ihe karịrị otu narị).
Rigs ndị dị n'ụsọ mmiri nwere ike ịrụ ọrụ puku kwuru puku kilomita site na ebe a na-ebubata ya na ngbanwe ma ọ bụ okirikiri ndị ọrụ anaghị adịkarị.
Anyị nwere ike na-ebunye rigs na-egwupụta ihe site na omimi 500-9000, nke tebụl rotary na sistemụ ụgbọ elu na-anya ya, gụnyere skid mounted rig, track mounted rig, workover rig na offshore rig.
