a Katika kesi ya nyenzo za kuunganisha, isipokuwa ikiwa imeainishwa vinginevyo katika makubaliano ya ununuzi, mahitaji ya ndani ya mtengenezaji yatatawala.
b Vifungo maalum vya kibali pia vitakuwa na mkanda mweusi.
c Viunga vya pete za muhuri pia vitakuwa na mkanda wa bluu.
Kwa kumalizia, kichakachua kichaka cha chombo cha shimo ni sehemu muhimu ya vifaa vya kuchimba visima vya mafuta vya API. Jukumu lake katika kusafisha casing ya kisima na kuhakikisha mtiririko usiozuiliwa hauwezi kupinduliwa
c Seal-ring Couplings shall also have a blue band.
In conclusion, the downhole tool Casing Scraper is an essential component of API Oil WellDrilling Rig equipment. Its role in cleaning the Well Casing and ensuring unobstructed flow cannot be overstated