Acid<div> At end of day I would bet 97% that the perf worked. This zone too tight and won't take acid. If they concerned about no holes shot in casing they would of re perf!!!!! No oil company in right mind would have not re shot! Besides when eline pulls to surface u can see if the gun shot or not!!! Fact is this zone would not take acid and formation damaged or to tight. It happens all the time in wells, zone won't take acid they pressure up max wont give. So plug off zone. Try next zone. Every oil company I know of makes only 1 attempt at it. And if they want a camera to be run. The well needs to be clean. So that's a 50/50. The fact is they perf didn't flow is a disappointment in itself alough acid works magic. But what do I know 10 years wireline