Plant Inspection 1

[chitel]

Hi everyone,
I need help on what PLANT INSPECTION MANAGEMENT SYSTEM regarding oil and gas plant is all about and if possible, any materials that could be of help.

Thanks

Chitel

 

[SJones]

http://www.hse.gov.uk/research/crr_htm/2001/crr01363.htm

Steve Jones
Materials & Corrosion Engineer

http://www.pdo.co.om/pdoweb/

 

[0707]

The document bellow is a good start for a plant inspection

"Risk-based Inspection
API RECOMMENDED PRACTICE 580"

About RBI software management go to the site bellow

http://www.equityeng.com/

Regards


Luis Marques

 

[systemga]

A good place to start is http//

http://www.i4integrity.com

for an RBI approach.

 

[dcasto]

I was exposed to a Risk Based program when I had to work with DOW, not for them, with them in the early 90's. Their 100 years of risk experience allowed them to quatify a lot of stuff associated with risk.

About the same time,an ex dOW employee wrote a book about pipeline risk assesment, Kent Muhlbauer, which I used to development some inspection intervals. All of this before pipeline integrety rules came out.

In 1996 I went to work in plant environment. I adopted the risk assesments developed by DOW, publishe by Kent M. to do piping, vessels, rlief, and safety systems. Now thanks to SJones link, I have a peer credible backup for a proram I developed.

The program takes the line, veseel, ect lists you have. Then operations and Engineering answers about 10 questions about the line and its contents. Then based on an agreed upon value, each answer is scored and the lines risk value is established. For example, a line with <4 ppm H2S = 1, <50 ppm= 10 and over 50 pmm= 50. Things like water saturation level, material = SS or CS, ect.. These give the relative probability of failure.

Then 10 more questions about the consequences, so liquids versus gases, high versus low pressure, toxicity, ect. The consequence times probability equals risk. Or a look up table like those used in Hazop gives the overall risk.

The over all risk drive the inspection time. Again based on a table predetermained with a 10 year max on pipe and 5 year on relief valves, 10 years on vessel, and 2 years on controls.

It's all set up in a spread sheet and the math and look ups are automatic. one of the questions on probability also includes a score for prior history so there is feed back into the risk.

I'll review the SJones paper again too.