IMCA D06 - Pipelines

Question 1

What are some of the precautions that can be taken topside when working around topside pumping equipment?

Answer 1

Warning notices
Barriers
Restricted access
Permit to work

Question 2

What is the main concern with working around pipelines?

Answer 2

Sudden release of gas or liquid

Question 3

What IMCA document deals with contamination?

Answer 3

IMCA DO21

Question 4

Pipeline testing:
Should there be any requirement for a diver to be in the vicinity of a pipeline under test?

Answer 4

No

Question 5

How should a suspected leak initially be inspected?

Answer 5

With the ROV

Question 6

What needs to happen for diver intervention on a suspected leak?

Answer 6

Pipeline pressure should be dropped to the predetermined safe level set out by full engineering and risk assessment done prior to commencement of pressure testing.

Question 7

No attempt shall be made to rectify a leak until pressure has been reduced to predetermined safe levels.

True or False

Answer 7

True

Question 8

Diver can make the initial assessment of a leak / damage to a pipeline.

True or False

Answer 8

False

Must be done with the ROV. Then pressure dropped before diver intervention.

Question 9

All work on pressurised pipelines should be controlled by what?

Answer 9

Detailed written procedures.

Question 10

Where practical isolations should be tested prior to commencement of work.

True or False

Answer 10

True