Publications and responsibilities
Can Heating Induce Borehole Closure?
Pressure Testing of Barrier Integrity
Plug and abandonment of a well is expected to ensure that the sealing integrity of the cap rock is restored. This also implies that the annulus between casing and rock is sealed off. Some formations may under the right conditions close in on the casing, providing a highly valuable contribution to...
The build-up of contact pressure behind casing due to formation creep
Skempton's A – A key to man-induced subsurface pore pressure changes
Fluid production from or injection into a subsurface reservoir leads to stress pressure changes inside and outside the reservoir. The overburden often consists of low permeability shale, and the undrained pore pressure response may be estimated from Skempton’s empirical equations. The key parameters...