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Leak Testing (LT)

Leak detection is used to determine if and in some cases where a leak has occurred in systems which contain liquids and gases. Methods of detection include hydrostatic testing, infrared, and laser technology after pipeline erection and leak detection during service.

The primary purpose of leak detection systems (LDS) is to help pipeline controllers to detect and localize leaks. LDS provide alarms and display other related data to the pipeline controllers to assist decision-making. Pipeline leak detection systems can also enhance productivity and system reliability thanks to reduced downtime and inspection time.

TRAINING

150 hrs of LT Level II training covers the following:

Leak Testing Level II training Topical outline

Principles of Leak Testing Course

1.0 Introduction

1.1 Leak testing fundamentals

1.2 Leak testing standards

1.3 Leak testing safety

1.4 Leak testing procedure

1.5 Leak testing specifications

1.6 Detector / instrument performance factors

2.0 Physical Principles in Leak Testing

2.1 Physical quantities

2.2 Structure of matter

2.3 Gas principles and laws

2.4 Gas properties

3.0 Principles of Gas Flow

3.1 Standard leaks

3.2 Modes of gas flow

3.3 Factors affecting gas flow

3.4 Geometry of leakage path

Pressure and Vacuum Technology Course

1.0 Pressure Technology

1.1 Properties of a fluid

1.2 Gas properties

1.3 Pressurization

1.4 Leak testing background / noise variables

1.5 Detector / instrument performance variables

1.6 Measurement and data documentation

2.0 Vacuum Technology

2.1 Nature of vacuum

2.2 Vacuum measurement

2.3 Vacuum pumps

2.4 Vacuum materials

2.5 Design of a vacuum system

2.6 Maintenance and cleanliness

2.7 Analysis and documentation

Leak Test Selection Course

1.0 Choice of Leak Testing Procedure

1.1 Basic categories of leak testing

1.1.1 Leak location

1.1.2 Leakage measurement

1 .1.3 Leakage monitoring

1.2 Types of leak testing methods

1.2.1 Specifications

1.2.2 Sensitivity

1.3 Basic techniques

1.3.1 Pressurization or evacuation

1.3.2 Sealed unit with or without tracer gases

1.3.3 Probing or visual leak location

1.3.4 Tracer or detector probing

1.3.5 Accumulation techniques