Obtaining Natural Gas Sample

In the analysis of natural gas quality, early stage to consider is taking a sample (sampling). Contaminants are carried at the time of sampling will certainly affect the results of the analysis. The main purpose of the sampling process is to obtain a representative sample that represents the product of the source / point-making, which is required for the purposes of physical and chemical analysis of these products in the laboratory, with the parameters and test methods specified.

Standard Methods:

ASTM D 1145: Test Method for Sampling Natural Gas

The procedure was differentiated based on the content of the gas to be analyzed,
Needs some differential sampling methods, namely:
Natural gas to the main content of hydrocarbons and nitrogen,
Natural gas that containing hydrogen sulfide and organic sulfur or other sulfur contaminants,
Natural gas that containing CO2,
Natural gas that containing gasoline and condensate,

GPA 2166: Obtaining Natural Gas Samples for Analysis by Gas Chromatography

Sampling methods based on the conditions of temperature, pressure source of gas samples and equipment available. With standard sampling procedures performed to obtain GPA spot representative sample container for analysis in laboratory. Some of the existing sampling procedures, suitable for wet gas sampling (wet / rich Natural Gas) at a pressure of 1100 psig, while for the (dry / lean Natural Gas) there is no specific limit to the pressure.