[QUOTE=DDdon;36910]Hope the attachement works - CM1, your Rupture Disks - as a result of an earlier BP field screw-up… http://www.huntingplc.com/DisplayFile.asp?ID=119347&Name=APRS+…+Disk+update.pdf[/QUOTE]
Yeh, we established the reason for the use of rupture discs last night. You might know BP was involved in the screw up causing the need for them. However, for them to be useful safty devices & not dangerous flow path routes for uncontrolled blowouts, they have to be run with a casing design that isolates them from the zone of interest. BP obviously did not do that. Instead, they opted for a single string without the proper amount of centralizers & opened the discs to failure buy means of overpressure by the formation now flowing. This will make the relief well much more unlikely to work.