Stressed rock perforating-charge testing system

A device comprising:

• a shaped charge testing chamber;
• a removable core sample chamber positionable within the shaped charge testing chamber and sized to receive a core sample;
• a core sample stress applicator to apply stress to the core sample;
• and
• a device comprising a hydraulic yoke to maintain the removable core sample chamber in a testing position within the shaped charge testing chamber, wherein the hydraulic yoke comprises at least one hydraulic cylinder to provide pressure to maintain the removable core sample chamber in the testing position within the shaped charge testing chamber.

A system comprising:

• a shaped charge testing chamber;
• a core sample chamber positionable within the shaped charge testing chamber and sized to receive a core sample;
• a core sample stress applicator to apply stress to the core sample;
• a device comprising a hydraulic yoke that to maintain the core sample chamber in a testing position within the shaped charge testing chamber, wherein the hydraulic yoke comprises at least one hydraulic cylinder to provide pressure to maintain the core sample chamber in the testing position within the shaped charge testing chamber;
• a loading and ejection piston in mechanical communication with the core sample chamber;
• and
• an ejection mechanism adjacent to the shaped charge testing chamber to provide an ejecting force on the loading and ejection piston.