Dona Ferentes
A little bit OC⚡DC
- Joined
- 11 January 2016
- Posts
- 14,976
- Reactions
- 20,319
In my wild wild mild wildcatting days, the blowout fear was always just after spud. Sometimes before, but also after the conductor pipe cemented in, of hitting a pocket of gas. Marlin in Bass Strait was one of these.. the problem being insufficient hydrostatic head to control the inflow. And not being weighted up enough.
Also, geologically, shallow depth can imply no overburden weight and the ability of the caprock to buckle, crack or fracture when subject to external stresses. And this can provide a escape route for fluids to filter out.
That said I know nothing of Karoo sediments or the geological history.
Also, geologically, shallow depth can imply no overburden weight and the ability of the caprock to buckle, crack or fracture when subject to external stresses. And this can provide a escape route for fluids to filter out.
That said I know nothing of Karoo sediments or the geological history.