2,803
edits
Changes
Jump to navigation
Jump to search
Line 57:
Line 57: − +
→Soft sediment handling
* Shearing caused by flexing the inner barrel
* Shearing caused by flexing the inner barrel
Soft sediment cannot be removed from a steel barrel without disrupting it. Therefore, a disposable inner barrel made of fiberglass, PVC, or aluminium can be used. The inner barrel is generally mated to a specific core catcher design (see chapter on “[[Conventional coring]]”).
Soft sediment cannot be removed from a steel barrel without disrupting it. Therefore, a disposable inner barrel made of fiberglass, PVC, or aluminium can be used. The inner barrel is generally mated to a specific core catcher design (see “[[Conventional coring]]”).
Well-designed equipment cannot alleviate the problems caused by poor handling. Since the core is hidden in the inner barrel, these problems are not noticed unless the core is CAT scanned. Scanning will determine the extent of damage and is an excellent aid to picking analysis plug points. Based on experience, the following steps are recommended to prevent damage:
Well-designed equipment cannot alleviate the problems caused by poor handling. Since the core is hidden in the inner barrel, these problems are not noticed unless the core is CAT scanned. Scanning will determine the extent of damage and is an excellent aid to picking analysis plug points. Based on experience, the following steps are recommended to prevent damage: