1 / 23

The Distribution of a Hydrocarbon System

The Distribution of a Hydrocarbon System. K.Potsch, C.Zach, OMV E&P. IEA Workshop and Symposium 2009 Canberra, 21.09.2014. Overview. Problem: How to discribe the „Plus-Fraction“ of a hydrocarbon system Medium and long distributions Chromatograms

abdalla
Download Presentation

The Distribution of a Hydrocarbon System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Distribution of a Hydrocarbon System K.Potsch, C.Zach, OMV E&P IEA Workshop and Symposium 2009 Canberra, 21.09.2014

  2. Overview • Problem: How to discribe the „Plus-Fraction“ of a hydrocarbon system • Medium and long distributions • Chromatograms • Mathematical treatment of distributions • Various examples • Way ahead, summary

  3. Problem = Plus-Fraction • Plus-Fraction = last component

  4. Problem = Plus-Fraction • Plus-Fraction = last component, long distributions

  5. Chromatograms • How to get the scn-distribution

  6. Chromatograms • Tail end

  7. Analytical method 2 GC runs, bridging compound = n-alkane between C10 and C15. Lower boiling components: • Agilent 6890 GC + HP ChemStation • fused silica capillary column (CP Sil 8.25m x 0.32mm, 0.25µm) • carrier gas = He high molecular weight compounds (up to C120) with HTGC • Agilent 6890 GC + AC SimDis Software • Column HP-1 (5m x 0.53mm, 0.09µm film thickness) + programmable temperature vaporizer (PTV injector). • Samples diluted in carbon disulfide.

  8. Mathematical treatment of distributions • G-function [Whitson]  Simpler form (x=snc) 

  9. G-function [Whitson]

  10. G-function [Whitson], sample #1: gasoil

  11. G-function [Whitson], sample # 2: VB-oil

  12. Mathematical treatment of distributions • Gaussian log-normal distribution

  13. Sample # 3: VB lean gas condensate

  14. Mathematical treatment of distributions • Multiple Gaussian log-normal distribution

  15. Sample #4: VB light oil

  16. Sample #5: VB oil

  17. Individual HCD functions • Turned hyperbola, 3 constant equation

  18. Sample #5: VB oil

  19. Sample #6: VB oil, (large reservoir)

  20. Individual HCD functions • Another 3-constant function, exponential type

  21. Sample #6: VB oil, (large reservoir)

  22. Application • Extend the distribution to fulfill • Find functions for r and M • Calculate the pseudo porperties

  23. The End Questions?

More Related