RE: Gas Column Grade3 Jun 2021 17:30
Blubay,
in no particular order (brain dump) although most can be remedied:
1. Since its vertical drilling, the chance of missed target is low but is always there.
2. tool or equipment failure not limited to BOP (before we get any He shows)
3. severe losses during drilling (eg hit a fault causing fluid losses) or kicks occur and not managed accordingly, hampering ops pre discovery
4. Insufficient He readings - contamination, low concentrations or He is just not there (i would eat my arm twice with ketchup if the latter occurs)
5. blowout if we accidentally hit a high pressure pocket (unlikely, low chance)
6. bore integrity failure (formation, casing, cement bond etc) causing drilling to stop before discovery
These are really non specific issues to Helium One but generally a sample of issues considered (E&P drilling), outwith of HSE / personnel related issues that would cause bottleneck or hamper / delay operations.