Perforating gun with a holding system for hollow charges for a perforating gun system

A perforating gun system, comprising:

• a plurality of hollow charges;
• and
• a holding device comprising a plurality of holes arranged along a helical path on a circumferential surface of the holding device, wherein the hollow charges are positioned within at least some of the plurality of holes, so that the perforating gun system comprises about 10 to 18 hollow charges per foot of length of the holding device, wherein at least a portion of the hollow charges extends beyond an outer surface of the holding device, wherein
• each of the hollow charges is encapsulated and hydraulically sealed so that the hollow charges are configured to withstand hydraulic pressures of at least 15,000 psi, and the hollow charges positioned within the holding device are operative for being directly exposed to fluid in a wellbore,
• the perforating gun is devoid of a secondary housing and the holding device has a wall thickness of from 2 mm to 8 mm so that the holding device withstands at least 1 ton of compression load along the length of the holding device and withstands the hydraulic pressures in the wellbore, and
• the perforating gun breaks up into fragmented debris upon detonation of the hollow charges and the fragmented debris remain in the wellbore.