Patent ID: 11867014
Assignee: ALTUS INTERVENTION (TECHNOLOGIES) AS
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A drilling assembly for making a passage in an object within a petroleum well, said drilling assembly is adapted to be displaced by a wireline tractor and supplied with a rotational force from a rotational motor, and said drilling assembly comprising:
a drill bit assembly;
a cutting assembly;
a rotatable drive assembly;
said drilling assembly forming a longitudinal center axis;
said drill bit assembly and the cutting assembly being fastened to the rotatable drive assembly;
said drill bit assembly comprises a drill bit at a free end of the drill bit assembly;
said cutting assembly is formed by a tubular body having a mouth portion provided with a hole saw assembly;
said cutting assembly being resiliently displaceable relative to the drill bit assembly along the center axis;
the drilling assembly further comprises a displaceable membrane within the tubular body, said displaceable membrane divides an interior of the tubular body into a receiving compartment of variable volume and an inner compartment of variable volume, and said displaceable membrane is fastened to one of the rotatable drive assembly and the drill bit assembly.