H2S | A standard abbreviation for Hydrogen Sulfide. |
Heating Value | The amount of heat developed by the complete combustion of a unit quantity of a material.Ê Heating values for natural gas are usually expressed as the Btu per Cf of gas at designated conditions (temperature and pressure) and either on the dry or water saturated basis. |
Heavy Ends | The portion of a hydrocarbon mixture having the highest boiling point.Ê Hexanes or heptanes and all heavier hydrocarbons are usually the heavy ends in a natural gas stream. |
Henry Hub | A terminal in Loiusiana at which natrual gas prices are quoted. |
Hexane Plus or Heptane Plus | The portion of a hydrocarbon fluid mixture or the last component of a hydrocarbon analysis which contains the hexanes (or heptanes) and all hydrocarbons heavier than the hexanes (or heptanes). |
High Heating Value | See Gross Heating Value. |
Hydrocarbon | Organic compounds including oil and gas. |
Hydrogen Sulfide | A flammable, very poisonous and corrosive gas with a markedly disagreeable odor, having the chemical formula of H2S that is a contaminant in natural gas and natural gas liquids. |