drilling

1.   сверление (отверстий)

2.   бурение (скважин)

- air drilling

- cable tool drilling

- cable drilling

- churn drilling

- core drilling

- down-hole hammer drilling

- full-face diamond bit drilling

- hammer drilling

- open-hole drilling

- oxygen lance concrete drilling

- percussion drilling

- reverse circulation drilling

- rock bit drilling

- rotary drilling

- rotary core drilling

- rotary percussion drilling

- rotary probe drilling

- shot drilling

- standard drilling

- straight rotary drilling

- wireline drilling