DETERMINING FORMATION FLUID COMPOSITION

摘要

Gas chromatography system for formation fluid. A fluid sample (108) is vaporized, the gaseous components are separated e.g. by diffusion through a coiled tube (124) and analysed by a detector (128). Carrier gas is hydrogen. After the detec-tion, the gas is broken down by a CuO catalyst and oxygen in a reaction section (144). The combustion gas is dried in a desiccator (150). The oxygen can also be injected into the vaporizing section to burn residues (heavy reaction), The gases created by this may also be analysed. Embodiments show the apparatus incorporated into a down-hole tool (270, 224) or wireline-tool.