Petroleum Method for Effective Diameter of Annulus 1

[dbecker]

Hello,


Recently I started a thread about how to calculate the effective diameter of an annulus.

After some debate it seemed that the petroleum method resembled the more realistic solution.

I am using this equation in a technical document and I need a reference that points me to the petroleum method. Where can I find this equation in text form?

Thank you,

 

[dbecker]

Anyone have any ideas?

 

[vpl]

dbecker

Maybe you could click on your handle and look at the posts you've made (click on the number of posts started and a list will come up) and provide a link to the one you're referencing?

I'm thinking this was the rather animated one that started off about using Crane for annular spaces?

Patricia Lougheed

Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.

 

[BigInch]

There were a couple of petro references made in that post. I directed you to a white paper by zdas, but I don't know if its that one you're looking for now, or the others.

**********************
"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/

 

[dbecker]

Hello BigInch, Thanks for the reply.

Yes I was looking at that reference, but I was wondering if there was a more concrete source such as a textbook or handbook of some kind.

Sorry I wasnt clear about this on my first post. But I really need a formal text that uses or derives this formula so I can have good proof of theory in my document.

A forum document is good enough for me, but it may not be good enough for our client (we need a source for this equation, how was it developed and validated? etc... textbook style)

 

[BigInch]

you might try contacting him here

http://www.muleshoe-eng.com/

**********************
"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/

 

[dbecker]

Thank you BigInch!!

 

[zdas04]

I get asked this often enough that I have the reference bookmarked (in a physical book):

Petroleum Engineering Handbook, edited by Howard B. Bradely, Third Printing, 1987, published by The Society of Petroleum Engineers, equation 49, page 34-27.

I've been able to verify this equation in hundreds of data analysis exercises over the years and it consistently does pretty well at matching measured data, way better than the alternatives.

David

 

[katmar]

David, is it possible to edit your FAQ on annular flow to include this reference?

Katmar Software
Engineering & Risk Analysis Software

http://katmarsoftware.com

 

[dbecker]

Thank you zdas!!!

 

[zdas04]

katmar,
That would be far too easy. It's done.

David