Pipe Integrity Testing (Insulation and Cathodic Testing)
CIPS
It is fundamental for the integrity of a pipeline network. It is employed to assess the efficacy of the cathodic protection system, which provides defense against corrosion. Unlike internal inspections that identify localized areas of corrosion, a CIP Survey enables the determination of potential corrosion sites and facilitates the enhancement of the cathodic protection system to eliminate external corrosion. Leaks or telluric currents can influence the CIP Survey. Essential CIP Survey equipment includes a digital measuring device, specialized cables, a backpack, GPS-synchronized current interrupters, and two electrodes containing copper sulfate solution.
DCVG
It is employed to pinpoint the exact locations of coating defects or holidays. The method is based on measuring the voltage drop between two electrodes placed on the ground. These measurements are performed using a highly sensitive and advanced analog voltmeter. This technique allows for the categorization of the type of insulation fault (e.g., Anodic-Anodic, Cathodic-Anodic, etc.). The magnitude of current leakage, expressed in millivolts, is calculated and classified as a percentage, enabling the prioritization of areas that require opening and repair. This approach facilitates cost reduction by determining the criticality of the faults.
(ACVG) PCM
The system, which generates a unique signal through its transmitter module, performs pipe position and depth detection up to 30 km using its receiver module. By employing an A-Frame attachment, it enables precise point analysis of the pipe segment, including fault location, position, and depth. Key features include rapid location determination, mapping, and minimizing unnecessary excavation. The algorithmic filtering capability allows for the elimination of erroneous signals caused by other metallic structures.