Okubizwa ngokuthi i-reverse circulation kusho ukuthi lapho umshini wokumba usebenza, i-disc ejikelezayo ishayela i-drill bit ekupheleni kwepayipi lokubhoboza ukusika nokuphula idwala nomhlabathi emgodini. Uketshezi olushaywayo lugelezela ngaphansi kwembobo lusuka egebeni eliphakathi kwepayipi lokubhoboza kanye nodonga lwembobo, lupholise i-drill bit, luthwale idwala elisikiwe kanye ne-slag yokumba umhlabathi, bese lubuyela phansi lusuka emgodini ongaphakathi wepayipi lokubhoboza. Ngesikhathi esifanayo, uketshezi olushaywayo lubuyela emgodini ukuze lujikeleze. Ngenxa yokuthi umgodi wangaphakathi wepayipi lokubhoboza uncane kakhulu kunobubanzi bomthombo, isivinini esikhuphukayo samanzi odaka epayipini lokubhoboza sishesha kakhulu kunesokujikeleza okuhle. Akuwona kuphela amanzi ahlanzekile, kodwa futhi i-slag yokubhoboza ingalethwa phezulu kwepayipi lokubhoboza futhi igeleze ku-tank sedimentation yodaka. Udaka lungagaywa kabusha ngemva kokuhlanzwa.
Uma kuqhathaniswa nokujikeleza okuhle, ukujikeleza okubuyela emuva kunezinzuzo zejubane lokumba ngokushesha, udaka oluncane oludingekayo, amandla amancane asetshenziswa itafula elijikelezayo, isikhathi sokuhlanza imigodi ngokushesha, kanye nokusetshenziswa kwezingcezu ezikhethekile zokumba nokumba amatshe.
I-Reverse circulation drilling ingahlukaniswa ibe yi-gas lift reverse circulation, i-pump suction reverse circulation kanye ne-jet reverse circulation ngokuya ngemodi yokujikeleza yoketshezi olushaywayo, umthombo wamandla kanye nomgomo wokusebenza. Ukumba i-gas lift reverse circulation drilling kubuye kwaziwe njengokumba i-air pressure reverse circulation, futhi umgomo wakho wokusebenza umi kanje:
Faka ipayipi lokubhoboza emgodini wokubhoboza ogcwele uketshezi olushaywayo, shayela induku yokudlulisa isikwele esiqinile emoyeni bese ubhoboza kancane ukuze uzungezise futhi usike idwala nomhlabathi ngokuzungezisa itafula elijikelezayo, fafaza umoya ocindezelwe ophuma emlonyeni wesifutho ekugcineni ongezansi ipayipi lokubhoboza, bese wenza ingxube yegesi yamanzi esihlabathi sodaka ibe lula kunamanzi anenhlabathi esikiwe nesihlabathi epayipini lokubhoboza. Ngenxa yesenzo esihlangene somehluko wengcindezi ngaphakathi nangaphandle kwepayipi lokubhoboza kanye nomfutho womfutho womoya, ingxube yegesi yamanzi esihlabathini sodaka noketshezi olushaywayo kuyakhuphuka ndawonye bese kukhishelwa emgodini wodaka noma ithangi lokugcina amanzi ngepayipi lokucindezela. Umhlabathi, isihlabathi, amatshe kanye nemfucumfucu yamatshe kuhlala emgodini wodaka, futhi uketshezi olugelezayo lugelezela emgodini.
Isikhathi sokuthumela: Sep-17-2021