\HPROGRAM 'GasWat'\h
      
      Program 'GasWat' calculates natural gas/water interaction
      properties and includes the following types of calculations:

          1) Hydrate calculations
          2) Water content predictions of natural gases
          3) Inhibitor quantities (methanol/glycols) to avoid hydrate 
             problems in pipelines
          4) Solid CO2 formation predictions

      Program 'GasWat' handles gases with known compositions and
      non-compositional gases (only gas gravity is needed).  Note 
      that the compositional model is more reliable than the non-
      compositional model, although they give similar results.

      Almost all gases contain some water vapor.  When leaving the 
      producing formation, gas is saturated with water vapor which is 
      in equilibrium with reservoir liquid water at temperatures and 
      pressures prevailing there.

      Knowing the water content of natural gases is essential to the
      design and operation of production, dehydration and transmission
      systems.  Water may condense in production and gathering systems.
      This may result in hydrate formation and plugging of flow
      systems and damage to internals of production equipment.
      Condensed water may form water slugs which will tend to decrease
      flow efficiency and increase the pressure drop in a line.  
      Presence of free water in pipeline systems may also cause 
      corrosion.  If carbon dioxide and/or hydrogen sulfide are present,
      the gases may form carbonic acid and sulfurous acid respectively
      if dissolved in water.
                
      
          The MINIMUM EQUIPMENT CONFIGURATION required by 'GasWat': 
  
          a) DOS version:
             1) An IBM PC, XT, AT or compatible computer
             2) 256 K or more of RAM memory
             3) DOS 2.0 or later operating system
             4) EGA (Enhanced Graphics Adapter) is necessary for 
                displaying the graphic curves
          
          b) Windows version:
             1) A computer with 80386 processor or better (486, Pentium)
             2) 4 MB RAM memory 
             3) Windows 3.+
         
        
        To order send a check for $19.95 to: 
        
        B. K. Berge, 206 Cliff Ave., Valley Springs, SD 57068

        Compuserve: 101653,3544
        
        Internet: 101653.3544@compuserve.com

