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The churn drill is a large drilling machine that bores large diameter holes in the ground. In mining, they were used to drill into the soft carbonate rocks of lead and zinc hosted regions to extract bulk samples of the ore.

The churn drill is a large drilling machine that bores large diameter holes in the ground. In mining, they were used to drill into the soft carbonate rocks of lead and zinc hosted regions to extract bulk samples of the ore.

Churn drill bailer sampling in Mongolia

Once the churn bit has done it's part in reducing samples to slurry, the bailer is used to bring them to the surface. This is a pretty sloppy process and has a great ...

What is CHURN DRILL? What does CHURN DRILL mean? CHURN DRILL meaning, definition & explanation

http://www.theaudiopedia.com What is CHURN DRILL? What does CHURN DRILL mean? CHURN DRILL meaning - CHURN DRILL definition ...

OLD BUCYRUS ERIE CHURN DRILL AT WORK

Drilling a well on my Dad's land.

Inefficiency in churn drilling

This is a pretty good illustration of one of the problem with bailer collection of samples. Stones have a nasty habit of interfering with the check ball.

[Wikipedia] Churn drill

The churn drill is a large drilling machine that bores large diameter holes in the ground. In mining, they were used to drill into the soft carbonate rocks of lead and ...

Drilling Techniques

Drilling Techniques.