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Gas Composition Analysis

Gas Reservoir Composition Services
Intertek provides a comprehensive range of reservoir gas composition related services, designed to meet the needs of exploration and production professionals. A comprehensive range of services covers both routine C1 to C6+ testing and extended gas analysis, including determination of inorganic gases such as CO2 and N2. Interek provides critical analyses in the assessment of reservoir productivity for both wildcat and production well scenarios.

Intertek gas composition capabilities include stable carbon isotope analysis, allowing determination of the genetic origin of gas in the subsurface, continuity of reservoirs, and sourcing mechanisms for inorganic gases.

Intertek offers professional sampling and analysis services for the determination of heavy metals in gas (Hg, As) in addition to routine analysis for sulphur based elements such as H2S and Mercaptans. The elements hydrogen, carbon, nitrogen, oxygen and sulphur posses two or more naturally occurring isotopes that do not undergo radioactive decay processes. These elements are key constituents of hydrocarbon reservoirs. The presence of stable isotopes are powerful tracers of geological processes, including fluids.

Gas composition technical services include:
  • Composition analysis of gas C1 - C6+ including N2 and CO2
  • Calculation of Heating Value, Relative Density and Compressibility Factor. ASTM D1945-96, ASTM D3588-98.
  • Composition analysis of gas C1 – C5, C6s, C7s, C8s+ including N2 and CO2
  • Calculation of Heating Value , Relative Density and Compressibility Factor. ASTM D1945-96, ASTM D3588-98
  • C1 to C5+ Headspace Gas analysis GC/FID
  • Stable Isotope Analysis of Gases Isotope using Mass Spectrometer
  • Natural Gas Testing
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