Pipelines 3

PIPELINE PROTECTION

1

Areas typically requiring protection for onshore

pipelines include:

1. Road crossing

2. Rail crossing

For onshore pipelines, protection is usually done

through markers or concrete slabs above the pipeline

AUGUST 2014

PIPELINE PROTECTION

2AUGUST 2014

PIPELINE CONSTRUCTION

The construction of the pipeline goes through five major steps:

1. Design, specify different component and preparation for all

required drawings

2. Pipeline built up

3. Pipeline pressure test and drain off the water

4. Cleaning, flushing and preparation for start up

5. Filling with the required fluid (crude oil or gas), and start up

3AUGUST 2014

WORLDWIDE PIPELINE CODES AND STANDARDS

4

1. ASME B31.4

Liquid transportation systems for hydrocarbons liquid petroleum gas, Anhydrous, Ammonia &Alcohol

2. ASME B31.8

Gas transmission and distribution piping systems

3. IGE/TD/1

Steel pipelines for high pressure gas transmission

4. AS2885.1

Gas pipelines and liquid petroleum

AUGUST 2014

WORLDWIDE PIPELINE CODES AND STANDARDS

5. DNV Recommended practice

Offshore oil and gas pipelines

6. PD 8010

Codes of practice for pipelines

7. CSAZ 662

Oil and gas pipeline systems

8. US DOT

Pipeline safety regulations

9. API RP 1111

Offshore oil pipelines

5AUGUST 2014


Steps in the construction process:

1. Clearing, grading and trenching

2. Stringing and welding pipe segments together

3. Depositing the pipeline, backfilling and testing (hydrostatic test)

4. Restoration

6AUGUST 2014


7

Clearing the area

AUGUST 2014


8

Trenching

AUGUST 2014


9

Trenching

AUGUST 2014


10

'Stringing' the Pipe

AUGUST 2014


11

Welding pipe with a single-head mechanized "bug."

AUGUST 2014


12

The arc is struck and the bug begins traveling down from a

12 o'clock position.

AUGUST 2014


13AUGUST 2014


14AUGUST 2014


15AUGUST 2014

Documents

Pipelines 3