Dhuumaha qodista 89mm ee qodista ceelasha biyaha oo leh API HADDII dunta
Tuubbadan qodista ceelasha biyaha, qaabka gaabisay ee tuubada daloolka daloolka, waa nooc ka mid ah ul bannaan oo fidsan.Waxaa inta badan loo adeegsadaa qodista gaasasyada rotary ee ka kooban gaas iyo dareerayaal.Qaybaheeda ugu muhiimsan waxaa ka mid ah dhuumaha (ul) jirka iyo wadajirka.
Tuubada daloolkeena hoosteeda waxaa la soo saaray iyadoo lagu salaynayo heerarka API.Iyo marka loo eego shuruudaha gaarka ah, waxaan sidoo kale ku bixinaa noocaan tuubada daloolista DTH ee noocyada kala duwan ee Shiinaha iyo Ameerika.
Marka loo eego faa'iidooyinkeeda, waxay leedahay astaamo qallafsanaan weyn, awood daboolid wanaagsan, qaab dhismeedka bannaanka fidsan, iyo qulqulka hooseeya iyo iska caabbinta marka la wareejinayo.
Xagga baakadaha, xidhmo tuubooyin dalool ah oo DTH ah ayaa lagu xidhi doonaa hal xidhmo oo bir ah, xidhmoduna waxay yeelan doontaa 30 ilaa 40 tuubbo dalool ah.
Qiyaasaha Farsamada ee DTH Drill Dhuumaha
| Dhexroorka | Dhererka | Guryaha Furaha | Xargaha |
| 50-194mm | 500-10700mm | 40,57,65,75,83,95mm | F42×10 F48×10 2 3/8''API REG |
| 2 7/8''API REG 3 1/2''API REG 2 3/8''API HADDII | |||
| 3 1/2"BECO 4”BECO 4 1/2”BECO | |||
| 5 1/4”BECO |
