Envantage DAKServe LTD LLC. SuperGC TM High Pressure Hydrocarbon Liquid/Gas Analyzer

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Frank Cross
5 years ago
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1 SuperGC TM High Pressure Hydrocarbon Liquid/Gas Analyzer

2 History Originally developed for Upstream PVT Analysis Support Original concept first published by Society of Petroleum Engineers in 1993 by W.A. Kriel, et al ARCO Oil & Gas Co. Temperature programmable valve design patented by Wayne Kriel and Envantage in the 2000.

3 History 1. The method has been reviewed by the top GC chemists in BP, Exxon, ARCO, and Mobil. 2. ARCO sent the complete data set of the 11 pre production samples that were run in triplicate (standard run before and after each sample) to Boeing for comprehensive statistical analysis. Their conclusion was that The data set was the most consistent and bias free data set they had ever evaluated "..

4 Features and Benefits Allows for the direct analysis of single phase fluid at pressures to 5000 psi, as well as dewpoint and lean gases, all on the same instrument! Eliminates the need for pre-analysis equilibrium flashing, saving time and effort while reducing operator-dependent errors Eliminates the need for separate GC injections/analyses to handle permanent gases, light ends, and heavier hydrocarbon components, thereby reducing errors in the final result. 4

5 Features and Benefits Temperature Programmable Valve (TPV) With Cooler 5

6 Features and Benefits FPC/MP C Waste Bottle Cooling Fins 30-35C Thermal Heat Cup Thermal Gradient C Carrier In To GC Column TPV Diagram 6

7 Features and Benefits Post-TPV Flashed Dead Oil Captured for Other Tests (e.g., MW, etc.) 7

8 Features and Benefits Depending on configuration, same instrument system can provide Natural Gas analysis (GPA 2261) AND Extended Natural Gas analysis (GPA 2286) AND Extended Natural Gas Liquids (GPA 2186, GPA 2177). Provides for the analysis of live black oil (crudes) (with material balance calculations) Ideal for dewpoint (rich) gas analysis using high pressure methane backfill to eliminate retrograde condensation during sampling. 8

9 Features and Benefits System designed around industry standard Agilent chromatographs but can be configured on other manufacturer s instruments System can be retrofitted to older equipment 9

10 Features and Benefits Bench top and Portable At-Line Versions Available Ideal for Direct PVT Cell Analysis With optional H2 and Air Generators, is rugged enough to be used offshore for analytical testing and allocation work (both at-line and on-line) 10

11 Features and Benefits Molecular Weight based calculations using industry standard Katz and Firoozabadi factors Output results in Wt%, Vol%, Mole%; physical property calculations such as API gravity, live sample MW determination, paraffin wax content (other physical property calculations, GPA, Simulated Distillation, etc. are also available). Outputs to Excel and Text Files for feed to Equation of State Software, BTU Calculators, etc. 11

15 Natural Gas Analysis (Lean) 15

16 High Pressure Rich Gas 16

17 1800 PSI Condensate Sample 17

18 SuperGC Example Report 18

19 SuperGC Example Report 19

20 SuperGC Example Report 20

21 SuperGC Example Report 21

22 Current Work and Enhancements New design for Valve and Flow Systems Utilize microfluidic dean switching Elimination of heated stream selection valve Allow for backflushing of heavy residues beyond analytical carbon number needs to avoid contamination of columns Reduce maintenance and downtime, reduction in moving parts

23 Current Work and Enhancements Comparison of Operation and Results with HPLIS (ASTM D8003) TPV Injection System More Robust and Easier to Maintain Sample injected directly on column Eliminates mass discrimination beyond C24 HPLIS uses Split Port, suffers beyond C24 Allow analysis to extend to C36-C40 carbon range

24 Thank You! Q & A