Which well holds the record for the deepest drilling, at 35,055 feet?

Which well holds the record for the deepest drilling, at 35,055 feet?

• A. Voyager-1 Well
• B. Kola Superdeep Borehole
• C. Kashagan Deep Discovery
• D. Tiber prospect for BP, 35,055 ft, drilled by Transocean's Deepwater Horizon

Answer: (D)

The deep-well depth being tested is about identifying the deepest petroleum well ever drilled. The record-holding example is the Tiber prospect, drilled for BP by Transocean's Deepwater Horizon, which reached about 35,055 feet. In drilling terms, that depth is measured depth—the actual length of the borehole along its curved path, not the vertical distance straight down. Because wells can be highly deviated, the measured depth can be longer than the vertical depth to the target. Other options don’t fit this petroleum-well record: one is a famous scientific borehole and not an oil and gas well, and another name doesn’t correspond to a well that reached that depth in a petroleum context. So, the Tiber well at 35,055 feet is the best match for the deepest drilling record in this context.

The deep-well depth being tested is about identifying the deepest petroleum well ever drilled. The record-holding example is the Tiber prospect, drilled for BP by Transocean's Deepwater Horizon, which reached about 35,055 feet. In drilling terms, that depth is measured depth—the actual length of the borehole along its curved path, not the vertical distance straight down. Because wells can be highly deviated, the measured depth can be longer than the vertical depth to the target.

Other options don’t fit this petroleum-well record: one is a famous scientific borehole and not an oil and gas well, and another name doesn’t correspond to a well that reached that depth in a petroleum context. So, the Tiber well at 35,055 feet is the best match for the deepest drilling record in this context.