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20多年天。气相色谱一直是原油特征分析的常规手段，色谱图为建立原油间相互关系提供特殊指纹。气相色谱通常用来解决勘探问题，但这项技术在开发和生产实际中也很有用。其中包括分辩不同储层并确定横向和纵向的连通程度。最近，利用气相色谱确定储层类别的一个新应用是进行产能配比计算。在许多油田，产油井是多层完井，因而产出的原油是来自不同产层的混合物。了解每个产层对混合物的相对贡献并监测随时间产能的变化很有意义。这样就要求精确的产能配比计算，观察产油层对注水、注蒸汽等的反映，监控油井运行状况以发现类似于套管渗漏这样的问题。产能测试是解决产能配比的常规方法，但色谱分析有独到之处。它分析简便、廉价、周期时间短。分析能立足油田实验室，并且这项技术已成功用于许多产能测试不适合的情况。
More than 20 years. Gas chromatography has always been the norm for characterization of crude oils, and chromatograms provide special fingerprints to establish the interrelationships between crude oils. Gas chromatography is often used to solve exploration problems, but this technique is also useful in development and production practices. These include the identification of different reservoirs and the determination of horizontal and vertical connectivity. Recently, a new use of gas chromatography to identify reservoir types was to calculate capacity ratios. In many fields, production wells are multi-layer completions and the resulting crude oil is a mixture of different layers. It makes sense to know the relative contribution of each formation to the mixture and to monitor changes in capacity over time. This requires accurate calculation of capacity ratio, observation of pay zones for water injection, steam injection, etc., and monitoring of well operation to find problems similar to casing leaks. Capacity test is to solve the conventional ratio of production capacity, but the chromatographic analysis is unique. It is simple, inexpensive, short cycle time. The analysis is based on field laboratories, and the technology has been successfully used in many productivity tests where it is not appropriate.