API RP 19B PDF

API RP 19B – Evaluation of Well Perforators, Third Edition

This recommended practice describes standard procedures for evaluating
the performance of perforating equipment so that representations of this
performance may be made to the industry under a standard practice.
Section 4 provides methods for evaluating perforator and/or system
performance in four ways:
1. Performance under ambient temperature and atmospheric pressure
test conditions into standard casing and concrete targets (4.1);
2. Individual shots into Berea sandstone targets at various defined
stressed conditions, with wellbore and pore pressures at nominally
ambient conditions (4.2);
3. How performance can be changed after exposure to elevated
temperature conditions (4.3);
4. Flow performance of a perforation under specific stressed test
conditions (4.4).
Section 4.5 provides a procedure to quantify the amount of debris that
comes out of a perforating gun during detonation, and during conveyance
out of the well. Section 4.6 provides a procedure to measure the swell of a
perforating gun.
The purpose of this recommended practice is to specify the materials
and methods used to evaluate objectively the performance of perforating
systems or perforators.