Coring drill core video

What is core drilling?

Core drilling refers to the system of drilling and collecting a cylindrical core sample in its original state, in-situ. This process is typically carried out using a 'wireline coring' method, which involves the use of a diamond impregnated (hollow) core bit that cuts until the core barrel is full.

How does a coring drill work?

Coring is one method of collecting rock and sediment samples for geological research. A coring drill bit is designed with a central opening, around which the drill bit cuts the borehole. The core samples enter this hole, into a special chamber – a coring barrel, as the coring bit advances and then the sample is returned to the ship by wire.

What do you learn in a Core Drill Course?

You’ll learn about core bits, reaming shells, core barrels, inner tubes, drill rods, casing, how they all fit together and what their purpose is. The video does an excellent job of describing how core drilling works visually, with clear animation.

Why are cores important in well logging?

Cores provide ground truth for calibration of well logs and can reveal variations in reservoir properties that might be undetectable through downhole logging measurements alone. This Defining Series article sets out the methods of acquiring cores—using drill pipe and wireline—and their analysis and role in the industry.