Kuhlanganisani ukusebenza kwe-downhole?

1. Ukwelashwa kwekhadi lesihlabathi

Emithonjeni lapho ipayipi elibhayiwe lingeside noma isihlabathi sibambeke singesibi kakhulu, intambo yepayipi lembobo ephansi ingaphakanyiswa futhi yehliswe ukuze kuxegiswe isihlabathi futhi kukhulule ingozi yokubhajwa kwepayipi.

Ukuze ukwelashwa kwemithombo ene-sand jams engathi sína, omunye uwukwandisa kancane kancane umthwalo ube nenani elithile ngesikhathi sokuphakanyiswa, bese wehlisa ngokushesha futhi ngokushesha ukukhulula; Imisiwe isikhathi esithile ngaphansi kwesimo sokunwetshwa, ukuze amandla okudonsa adluliselwe kancane kancane entanjeni yepayipi ephansi. Womabili amafomu angase asebenze, kodwa umsebenzi ngamunye kufanele umiswe imizuzu emi-5 ukuya kweyi-10 ukuvimbela intambo ukuthi ingakhathali futhi inqanyulwe.

Ukubhekana nokuminyene kwesihlabathi, izindlela ezinjengokucindezela okukhubazekile nokujikeleza kwe-reverse, ukushaywa kwamapayipi, ukuphakamisa ngamandla, ukukhwabanisa, nokugaya imikhono ehlehlayo nazo zingasetshenziswa ukubhekana nokuminyene kwesihlabathi.

2. Into ewisiwe yokwelapha umshini wokubhoboza

Ukunamathela kwento ewayo kusho ukuthi amathuluzi embobo ephansi abhajwe imihlathi, iziliphu, amathuluzi amancane, njll. awela emthonjeni, okuholela ekubhobozeni ukunamathela.

Uma usebenza nezinto eziwayo ezibhajwe kumshini wokubhoboza, ungawuphakamisi ngamandla ukuze uvimbele ukuthi ungabambeki futhi wenze ingozi ibe nzima. Kunezindlela ezimbili zokwelapha ezijwayelekile: uma intambo yepayipi elibambekile ingazungeziswa, intambo yepayipi elijikelezayo ingaphakanyiswa ngobumnene. Cindezela izinto eziwayo ukuze ukhulule ukuminya kwentambo yepayipi lembobo ephansi; uma le ndlela engenhla ingasebenzi, ungasebenzisa i-hook yodonga ukuze uqondise phezulu kwezinhlanzi, bese ususa izinto eziwayo.

3. Khipha i-casing ibambekile

Ngenxa yezinyathelo zokuvuselela ukukhiqiza noma ezinye izizathu, i-casing ikhubazekile, yonakalisiwe, njll., futhi ithuluzi le-downhole lehliswa ngephutha ngengxenye eyonakele, okuholela ekunamatheleni kwepayipi. Lapho ucutshungulwa, susa intambo yepayipi ngaphezu kwendawo enamathele, futhi okunamathiselwe kungakhululwa kuphela ngemva kokuba i-casing isilungisiwe.