1. n. [Drilling]

The gangplank or stairway connecting a jackup rig to a fixed platform.

2. vb. [Drilling]

To intentionally or accidentally plug off pore spaces or fluid paths in a rock formation, or to make a restriction in a wellbore or annulus. A bridge may be partial or total, and is usually caused by solids (drilled solids, cuttings, cavings or junk) becoming lodged together in a narrow spot or geometry change in the wellbore.

See: blowout,  drill solids,  formation damage

3. n. [Well Completions]

A wellbore obstruction caused by a buildup of material such as scale, wellbore fill, or cuttings that can restrict wellbore access or, in severe cases, eventually close the wellbore.