... psi at discovery owing to significant overpressure (0.82 psi/ft). The chalk is relatively weak (UCS between 500 psi to 2000 psi), and as reservoir pressure has been reduced during primary depletion from around 6500 to 2500 psi in the crest, the chalk matrix has compacted between 10 and 15 meters...

... and long term well planning, estimation of cooling effects from injectors, subsidence/compaction predictions, input to well completion, monitoring optimization, overburden integrity studies, out of zone injection and fault re-activation assessment. Some examples on such use will be given in this paper...