Across
- 4. A drilling rig that has a jack-knife mast instead of a standard derrick.
- 5. The type of drilling rig where the bit is rotated by a drill string.
- 6. The ____ system is a set of tension legs or tendons attached to the platform of TLP.
- 8. The self-propelled floating offshore drilling vessel that is capable of drilling in water depths of more than 10,000 ft.
- 10. The type of rig that is classified based on the vertical position of the derrick.
- 11. The floating offshore drilling unit with pontoons and columns that can submerge in water.
Down
- 1. The city where the SPE office was established in the year 2003.
- 2. Rigs can be classified based on the used power. Type of rig where pressured air is used for small-scale movements.
- 3. The material used for the construction of drill pipes and derricks in ancient China.
- 7. The cutting tool in rotary drilling.
- 9. The type of rig (based on the position of the derrick) where the derrick is placed at an angle to achieve deviation without a downhole motor.
- 10. Since the drill string must be lowered and raised to advance the boring, ___ is typically used to hold back upper soil materials and stabilize the borehole.