Thursday, July 2, 2020

Complexity analysis? What’s That?

“Life is really simple, but we insist on making it complicated.” ― Confucius

Oil & Gas Journal has announced the 2020 Worldwide Refining Survey with Complexity Analysis.

The text of the email announcement appears below. But, first, what is Complexity Analysis?

TIP: Google® complexity analysis oil gas journal.

One result is a Wikipedia article explaining the concept. Excerpts appear below …

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Nelson complexity index
From Wikipedia, the free encyclopedia
The Nelson complexity index (NCI) is a measure to compare the secondary conversion capacity of a petroleum refinery with the primary distillation capacity.[1] The index provides an easy metric for quantifying and ranking the complexity of various refineries and units.[2] To calculate the index, it is necessary to use complexity factors, which compare the cost of upgrading units to the cost of crude distillation unit.[3]
History
It was developed by Wilbur L. Nelson in a series of articles that appeared in the Oil & Gas Journal[4] from 1960 to 1961 (Mar. 14, p. 189; Sept. 26, p. 216; and June 19, p. 109). In 1976, he elaborated on the concept in another series of articles, again in the Oil & Gas Journal (Sept. 13, p. 81; Sept. 20, p. 202; and Sept. 27, p. 83).
The NCI assigns a complexity factor to each major piece of refinery equipment based on its complexity and cost in comparison to crude distillation, which is assigned a complexity factor of 1.0. The complexity of each piece of refinery equipment is then calculated by multiplying its complexity factor by its throughput ratio as a percentage of crude distillation capacity. Adding up the complexity values assigned to each piece of equipment, including crude distillation, determines a refinery’s complexity on the NCI.
The NCI indicates not only the investment intensity or cost index of the refinery but also its potential value addition. Thus, the higher the index number, the greater the cost of the refinery and the higher the value of its products.
In the second edition of the book Petroleum Refinery Process Economics (2000), author Robert Maples notes that U.S. refineries rank highest in complexity index, averaging 9.5, compared with Europe's at 6.5. The Jamnagar refinery belonging to India-based Reliance Industries Limited is now one of the most complex refineries in the world with a Nelson complexity index of 14.[6] The new refinery began trial production on December 25, 2008. The former BP Texas City, Texas refinery, newly acquired by Marathon Petroleum as their Galveston Bay Refinery has a Nelson complexity index of 15.3 in 2013.
The Oil and Gas Journal annually calculates and publishes a list of refineries with their associated Nelson complexity index scores.
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And here is the text of the email I rec’d announcing the 2020 edition …

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Get the 2020 Worldwide Refining Survey with Complexity Analysis!

Have you got the 2020 Worldwide Refining Survey with Complexity Analysis yet?

It's based on the Oil & Gas Journal's 2020 Worldwide Refining Survey, and includes the calculated Nelson Refinery Index for the set's available global refineries.

The Nelson Index is calculated for the following:

Crude
Vacuum
Coking
Isomerization
Asphalt
Sulfur
Catalytic Reforming
Catalytic Cracking
Catalytic Hydrotreating
Lubes
Hydrogen
Isooctane
...and others!
Find more of the data you're looking for on OGJ Research!

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Jean Steinhardt served as Librarian, Aramco Services, Engineering Division, for 13 years. He now heads Jean Steinhardt Consulting LLC, producing the same high quality research that he performed for Aramco.

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