Pig mainline gas pipelines training kit, training objectives and table of contents - HDC Human Development Consultants Ltd.

Pig Mainline Gas Pipelines

Pig Mainline Gas Pipelines–launching, tracking, retrieving pigs

Total Pages: 104

Training Objectives
Upon completion of this training kit on pigging mainline gas pipelines, you will be able to:

	Describe the purpose and importance of pigging operations for mainline gas pipelines
	Describe reasons for pigging mainline gas pipelines
	Describe different types of pigs and their uses
	Describe components of mainline gas pipeline pigging systems
	Describe barrel-shaped pig launching and receiving equipment
	Describe pig launching and receiving practices
	Describe methods used to clean a pig
	Describe methods used to locate and free stuck pigs
	Launch and receive pigs

Table of Contents

Training Objectives		1
1	Introduction	1
2	Reasons for Pigging Mainline Gas Pipelines	3
3	Types of Pigs	6
4	Pigging Components	9
	4.1 Remote Operation	10
	4.2 Pig Launchers and Receivers	11
	4.3 Pig Signals	21
	4.4 Station Bypass Facilities	22
	4.5 Metering Facilities	25
5	Operator Roles	26
6	Pigging Practices	28
	6.1 Safety and Environment	28
	6.2 Pigging Frequency	30
	6.3 Pre-Job Meeting	31
	6.4 Launcher/Receiver On-Line or Isolated	31
	6.5 Depressurizing, Venting, and Draining	33
	6.6 Purging	34
	6.7 Removing Pigs	34
	6.8 Key Interlock Systems	34
	6.9 Other Practices	35
7	Pig Loading and Launching Practices	35
	7.1 Loading Pigs	36
	7.2 Launching Pigs	39
8	Pig Receiving Practices	41
	8.1 Receiving Pigs	42
	8.2 Removing Pigs	44
	8.3 Cleaning Pigs	47
9	Stuck and Lost Pigs	49
10	In-Line Inspection (ILI) Pigs	52
	10.1 Metal Loss Detection Pigs	53
	10.2 Geometry Pigs	54
	10.3 Using Inspection Pigs	55
	10.4 Field Operator Responsibilities	58
11	Self-Check	59
12	Self-Check Answers	65

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