Amakhola okubhoboza angewona amagnetic asebenza kanjani?

1. Umsebenzi wekhola yokubhoboza engeyona i-magnetic

Njengoba zonke izinsimbi zokulinganisa zikamazibuthe zizwa insimu ye-geomagnetic ye-wellbor lapho zilinganisa ukuqondiswa kwe-wellbor, ithuluzi lokulinganisa kumele libe sendaweni engeyona i-magnetic. Kodwa-ke, ngesikhathi senqubo yokubhoboza, amathuluzi okubhoboza avame ukuba ne-magnetic futhi abe ne-magnetic field, ethinta izinsimbi zokulinganisa zikamazibuthe futhi ayikwazi ukuthola ulwazi olufanele lokulinganisa i-wellbore trajectory. Ukusetshenziswa kwama-drill collars angewona i-magnetic kunganikeza indawo engeyona i-magnetic futhi kube nezici zama-drill collars ekubhobozeni.

Isimiso sokusebenza sekhola yokubhoboza engeyona i-magnetic siboniswe esithombeni. Njengoba imigqa yensimu yamagnetic ephazamisayo engaphezulu nangaphansi kwekhola yokubhoboza ingenawo umthelela entweni yokulinganisa, indawo engeyona i-magnetic idalelwe ithuluzi lokulinganisa eliyi-magnetic, ukuqinisekisa ukuthi idatha elinganiswe yithuluzi lokulinganisa eliyi-magnetic iyiqiniso.

2. Izinto zekhola yokubhoboza ezingezona ezikagesi

Izinto zekhola yokubhoboza ezingezona ezikagesi zifaka i-Monel alloy, insimbi ye-chromium-nickel, insimbi ye-austenitic esekelwe ku-chromium kanye ne-manganese, i-alloy ehlanganiswe ngethusi, insimbi ye-SMFI engeyona eyogesi, insimbi yasekhaya ye-manganese-chromium-nickel, njll.

I-Landrill inikeza amakhola okubhoboza ajwayelekile futhi ajikelezwe kusuka ku-3-1/8''OD kuya ku-14''OD ngokuhambisana nemininingwane ye-API, NS-1 noma i-DS-1.