Abstract
The design of safe and reliable acid gas compression, injection, and transport facilities requires a good understanding of the phase behavior of acid gas and water. Although many data are available for natural gas systems in open literature, there are limited reported data on the H2S + H20 system at pressures relevant to injection schemes and target reservoir pressures. For the past ten years, Alberta Sulphur Research Ltd. (ASRL) has been developing techniques for the measurement of water carrying capacity of gases, liquids, and supercritical fluids. With the current experimental method, water carrying capacity measurements at pressures up to 100 MPa and at temperatures up to 150°C are being carried out. Difficulties associated with this type of experiment will be discussed. Initial measurements have been completed for H2S + H20 at T = 50 and 100°C, and from p = 3.8 to 70.5 MPa. These new measurements serve to add information at conditions which are not covered by the existing literature, including extending available experimental values above p = 30 MPa. These new values, together with literature water content and H2S solubility and volumetric data, have been combined to calibrate a model for calculating equilibrium between H20 and H2S up to T = 200°C and p = 70 MPa. Model parameters have been reported, along with ASRUs future experimental and modeling plans in this area.
Original language | English (US) |
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Title of host publication | Sour Gas and Related Technologies |
Publisher | John Wiley and Sons |
Pages | 1-20 |
Number of pages | 20 |
ISBN (Print) | 9780470948149 |
DOIs | |
State | Published - Sep 19 2012 |
Externally published | Yes |
Keywords
- Acid gas
- Compression discharge
- Gas chromatograph
- Hydrogen sulfide
- Water content
ASJC Scopus subject areas
- General Energy