de-oiling heavy fuel oil pipeline

[msamuels]

What would be the best method to de-oil a 10 inch diameter, 2250 meters long length of submarine pipeline filled with #6 heavy fuel oil. The pipeline is being decommissioned & removed from service.

Taking cost effectiveness & environmentally friendly into consideration

 

[bimr]

You should talk to a Contractor that specializes in pipeline maintenance. The paper at the following site has a very good description of the various cleaning operatings involved. Use of pigs, cleaning solutions, etc.

http://www.pilotsharefair.com/downloadabledocs/501/4.1 Allan Browne, Halliburton.pdf

 

[BigInch]

Push it out with diesel or a lighter diluent oil, naptha etc.

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[Ron]

Burn it or chop it and scrap it. Sell it to a rebar mill...they don't care if it had oil in it..

 

[BigInch]

Ron, If I'm not mistaken, I think the line is still underwater with oil in it.

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[Ron]

BigInch...that would make it a bit difficult to burn!!

Sorry...misunderstood the issue.