Modelling and simulation of gas/gas condensate in gas pipeline 2

multiphase flow is a wast subject.If this is for commercial use then i would recommend that you purchase the service or software. E.g. OLGA from Scandpower:
Best regards

Morten

Olga is pretty powerful, and is really focused on multiphase interactions which might be more random than the designers would hope.

For a less "rigerous" approach that may even be more representative of actual flowing conditions you could look at something like PipeSim, PipePhase, PipeFlow, or ForGas. The only ones of these I've used in its current incarnation is PipeSim and PipePhase. I like PipeSim quite a bit, PipePhase seemed a bit buggy to me last year when I was trying to model a casinghead gas system.

David

how can i get to all these: pipeflo, pipesim and the rest of them

Here is one vendor:

If you only need to do smaller systems with very few branches I use this: They will allow you to use their software for twoo weeks free to see if it fits your bill. You'll need some understanding of two phase flow and the different equations avaiable because you will need to pick the ones that best fit your case.

I agree with zdas- OLGA is way, way over the top for what you want to do- OLGA is more for single and (especially) multi phase transient behaviour. It's phenomonally expensive (or was, when I was in pipeline design!)

What you want is a compositional single phase simulator such as pipeflo, pipesim etc. I was most familiar with Pipeflo, which I found very good, and I didn't like Pipesim much in it's Baker Jardine days- one good in house correlation, but not much else. However this was 10 years ago!

Run the model with as many different phase correlations as you can, to get a performance 'envelope'. You might also want to try and read up on the different correlations: I know that in vertical flow (ie up an oil well rather than along a pipeline) Beggs & Brill usually overpredicts pressure loss and Fancher-Brown underpredicts pressure loss so I use these two correlations as quality control in my well modelling. Ideally you want to be able to do the same sort of thing with your pipeline model.

Pipeflo is available from Neotec, on a per run basis if necessary from Pipesim is now owned by Brother Blue, more info at and pipephase is available at

DrillerNic

How can you conclude this when you don know what he wants to analyse? It may be that he needs to size slug catchers (yes he hasnt said anything about this but it wouldnt be the first time in history that a "small subject" bloomed into something bigger). You dont knwo anything about pipelinelength, production rates, topology or...

Besides while OLGA transient IS rather expensive (around us$200,000 last time i checked for a single license) then you can get a SS module that integrates with HYSYS for a MUCH lower price and it give consistent answers with the dynamic model (but then you are back to SS).

If you DO have a HYSYS license then i think the SS OLGAS module might come out the cheapest - and if you allready know how to use HYSYS then it very easy to use.

Since it appears that its 10+ years since you did flow simulation just as with drillign related issues (that i dont know much about) tehre is a development going on in flowmodelling and flow assurance. While you may find it tedious some people want so much more details these days that the backside of an envelope dosnt cut it anymore.

Besides - apart from bying the OLGA license you may also hire a consultant.

While i find that winsim is an excellent piece of software at the price and the basic principle of their pipemodel to be very good - they do lack behind in multiphase models somewhat.

Best regards

Morten

A gas-liquid mixture in a horizontal pipeline, like you have indicated, tends to separate with the heavier liquid settling to the bottom. The type of flow pattern depends primarily on the gas and liquid flow rates.

Regardless what you use, even the best correlations available for pressure drop and liquid hold up will be in error by as much as 20% for horizontal flow (and up to 50%for verticle flow).

Check out a couple of the following:

P. Griffith, "Multiphase Flow in Pipes," JPT, March 1984, pp. 363-367

API RP 14E has an equation (equation 38) that is derived from the general equation for isothermal flow assuming that the pressure drop is less than 10 percent of the inlet pressure.

The AGA method uses a frictional pressure drop calculation originally developed by Dukler and an elevation pressure drop calculation originally developed by Flanigan. It comes from the Fluid Flow and Piping Sections of the GPSA Engineering Data Book.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website:

Check out WinSim and their two phase flow modeling at a very competative price, way below Hysys.

Hello all,
Thanks Greg for your valuable post.
But to be more specific, what i need is not a simulator as in pipeFLo or pipesimss, i need links to published journals, materials, ebooks that i can use to develop these models especially if these models haven't been developed before.
As i guess, one of u guys must have worked on something like this, so what i need are equations and necessary e-materials and textbooks and not softwares for now.
Thanks

1. Crane Technical Paper No. 410, "Flow of fluids Through Valves, Fittings, and Pipe", 1982 Revision. of the ASME, Vol. 83,
No. 3, pp. 307-320, August 1961.
2. Duns, H., Jr. and Ros, N.C.J., "Vertical Flow of Gas and Liquid Mixtures from Boerholes",k Proceedings of Sixth World
Petroleum Congress, Frankfurt, Section II, Paper 22, June 1963.
3. Schneider, F.N., White, P.D., and Huntington, R.L., "Correlation for Two Phase Wave Flow", Pipe Line Industry, Vol. 2,
October 1954.
4. Moody. L. F., "Friction Factors for Pipe Flow", Transactions of ASME, Vol. 66, pp. 671-678, November 1944.
5. American Gas Association, Steady Flow in Gas Pipelines, pp. 146-149, New York, 1965.
6. Dukler, A.E., et al, "Gas-Liquid Flow in Pipelines, I. Research Results", AGA-API Project N X-28, May 1969.
7. Brill, J.P. and Beggs, H.D., Two-Phase Flow in Pipes, The University of Tulsa, 3rd Printing, Feb., 1984.
8. Brill, J.P., et al, "Analysis of Two-Phase Tests in Large Diameter Flow Lines in Prudhoe Bay Field", Trans. of the AIME,
Soc. Pet. Eng. J., pp 363-378, June 1981.
9. Scott, S.L., Shoham, O., and Brill, J.P., "Prediction of Slug Length in Horizontal Large-Diameter Pipes", SPE Paper 15103,
1986.
10. Eaton, B.A.. et al, "The Prediction of Flow Patterns, Liquid Holdup, and Pressure Losses Occurring During Continuous
Two-Phase Flow in Horizontal Pipelines", Trans. AIME, p.815, 1967.
11. Hughmark, G.A. and Pressburg, B.S., "Holdup and Pressure Drop with Gas-Liquid Flow in a Vertical Pipe", AIChE J., Vol.
7, p 667, Dec 1961.
12. Mukherjee, H., and Brill, J.P., "Liquid Holdup Correlation for Inclined Two-Phase Flow", J. Pet. Tech., Vol. 35, No. 5, pp.
1003-1008, 1983.
13. Schneider, F.N., White, P.D., and Huntington, R.L., "Correlation for Two-Phase Wave Flow", Pipel ine Industry, Oct.,
1954.
14. Kern, R., "How to Size Process Piping for Two-Phase Flow", Hydrocarbon Processing Vol. 48, pp. 105-116, Oct., 1969.
15. Hughmark, G.A., "Holdup in Gas-Liquid Flow", Chemical Engineering Progress, Vol. 58, pp. 62-65, April, 1962.
16. Orkiszewski, J., "Predicting Two-Phase Pressure Drops in Vertical Pipe", Journal of Petroleum Technology, Vol. 19, pp.
829-838, June 1967.
17. DeGance, A.E. and Atherton, R.W., "Horizontal Flow Correlations, Chemical Engineering, Aspects of Two-Phase Flow,
Part 4", Chemical Engineering, Vol. 77, No. 15, pp. 95-103, 1970.
18. Flanigan, O., "Two-phase gathering systems", Oil and Gas Journal, Vol. 56, pp. 132-141, March 10, 1958.
19. Weymouth, T.R., "Problems in Natural Gas Engineering", Transactions of the American Society of Mechanical Engineers,
No. 1349, Vol. 34, pp. 185-231, 1912.
20. Sherwood, T.K., "Velocity of Sound in Compressed Gases", Journal of Chemical Engineering Data, Vol. 7, No. 1, pp. 47-
50, 1962.
21. Gas Processors Suppliers Association, Engineering Data Book, Chapter 10, Ninth Edition, Fourth Revision, 1979.
22. Lockhart, R.W., and Martinelli, R.C., "Proposed Correlation of Data for Isothermal Two-phase, Two compartment Flow in
Pipes", Chemical Engineering Progress, Vol. 45, pp. 39-48, January 1949.
23. Griffith, P., "Two Phase Flow in Pipes", Special Summer Program, Massachusetts Institute of Technology, Cambridge,
Mass., 1962.
24. Griffith, P. and Wallis, G.B., "Two Phase Slug Flow", Journal of Heat Transfer, Transactions
25. Hagedorn, A.R., and Brown, K.E., "Experimental Study of Pressure Gradients Occurring During Continuous Two-Phase
Flow in Small Diameter Vertical Conduits", J. Pet. Tech., pp. 475484, Apr. 1965.
26. Oliemans, R.V.A., "Two-Phase Flow in Gas Transmission Pipelines", paper presented at KIVI Symp: Submarine Gas
Pipeline Developments, Amsterdam, The Netherlands, April, 1976.
27. Jain, A.K., "Accurate Explicit Equations for Friction Factor", J. Hydraulics Div. ASCE, Vol. 102, p. 674, 1976.

Thanks Dcasto,
U just copied and pasted some referencess
most of these textbooks are subscribed for online.
Would really appreciate specific links to these texts online especially if free copies are avilable
Thanks again

A few in addition to the above that I have run across (but don't have links - sorry) are:

J.P. Brill, "Multiphase Flow in Wells," JPT, January 1987, pp. 15-21

An interesting bit of history on the above. James Brill and Dale Beggs, University of Tulsa students (where I live) did some pioneer work back in the 70's. Their original procedure 1st appeared in the May 1973 issue of the JPT. Almost all correlations prior to the Beggs and Brill method could predict pressure drop in two-phase flow for vertical or horizontal flow only but no correlation existed for predicting the pressure drop in 2-phase flow at any angle of inclination. Beggs and Brill developed one. The original article presents a specific description of the experimental procedure used to develop this method.

Yaitel, Y., Barhea, D., and Duckler, A.E., "Modeling Flow Pattern Transitions for Steady Upward Gas-Liquid Flow in Vertical Tubes," AIChE J., May 1980, pp. 345-354.

Battarra, Mariana, Gentilini and Giaccheta, Oil and Gas Journal, Dec. 30, 1985



Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website:

look at this thread481-183771 goes to a good paper too.

dcasto

I was considering pasting the download link on this thread, but had a question about it and didn't want to be accused of hijacking the thread so I posted as a separate thread. Thanks for linking them.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website:

dcasto

One problem with using hysys/winsim and whatever is that he may have to learn a full software package just for this job?

But still you are right: Winsim is good and reaosnable priced when compare to HYSYS (the price of a license has become close to absurd after aspentech took over)

Best regards

Morten