Research and Application of Multi-Component Gas Logging Analysis Technology

with the continuous deepening of oil and gas exploration and development, unconventional, composite and other complex oil and gas reservoirs have gradually become the focus of exploration and development. At present, the gas logging analysis technology commonly used in the drilling process of oil and gas wells can only analyze light hydrocarbon components before nC
5
. In fact, more hydrocarbon components such as C
6
+ are not effectively used, which makes the identification of reservoir fluid properties inaccurate, especially in some complex oil and gas wells will reveal greater limitations. Therefore, use multi-component gas logging data to achieve the evaluation of reservoir fluid properties and the quantitative drilling fluid degassed by gas degasser to achieve constant temperature and pressure degassing and fast chromatography, combined with quality control, parameter correction, use template for interpretation of specific fluid properties to achieve more accurate evaluation of reservoir fluid properties. It is of great practical importance and high application value for oilfield production.