In a scenario where current wells exist but new completion work is required before production, what category is used?

In a scenario where current wells exist but new completion work is required before production, what category is used?

• A. Developed Reserves
• B. Behind-Pipe Reserves
• C. Undeveloped Reserves
• D. Prospect

Answer: (B)

Behind-pipe reserves are reserves that sit behind the production pipe: the well exists and casing is in place, but you still need completion work (like perforating, stimulation, or installing production equipment) to bring it on production. Because the well is in place, these are considered developed, but they aren’t producing yet, since that extra work is required. That’s why, when current wells exist but require new completion before production, this category fits best. Developed reserves would be those already able to produce with existing facilities, which isn’t the case here. Undeveloped reserves imply no well exists yet or major new drilling is needed, and a prospect is a potential resource not yet drilled.

Behind-pipe reserves are reserves that sit behind the production pipe: the well exists and casing is in place, but you still need completion work (like perforating, stimulation, or installing production equipment) to bring it on production. Because the well is in place, these are considered developed, but they aren’t producing yet, since that extra work is required. That’s why, when current wells exist but require new completion before production, this category fits best. Developed reserves would be those already able to produce with existing facilities, which isn’t the case here. Undeveloped reserves imply no well exists yet or major new drilling is needed, and a prospect is a potential resource not yet drilled.