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发明公开
CN111033227A 光声气体检测 审中-实审

光声气体检测
摘要：
一种井下系统(100)，包括：石英增强光声光谱仪(QEPAS)(200)，被配置为位于井眼(161)内，所述井眼(161)形成在地层的地下区域中；采样系统(400)，耦合到所述QEPAS(200)；以及计算机系统(800)，连接到所述QEPAS(200)。所述采样系统(200)被配置为位于所述井眼(161)中并在所述地下区域中的井下位置处获得井眼流体的样品。QEPAS(200)被配置成对样品进行光谱扫描并确定样品中的多种数量的相应的多种油气。所述计算机系统(800)包括一个或多个处理器，以执行包括接收所述样品中的所述多种数量的所述多种油气并确定多个比率的操作，其中每个比率是所述多种油气中的一种油气与所述多种油气中的另一种油气的比率。
摘要（英）：

A downhole system includes a quartz enhanced photoacoustic spectrometer (QEPAS) configured to be positioned within a wellbore formed in a subterranean zone of a hydrocarbon formation, a sampling system coupled to the QEPAS, and a computer system connected to the QEPAS. The sampling system is configured to be positioned in the wellbore and obtain a sample of a wellbore fluid at a downhole location in the subterranean zone. The QEPAS is configured to spectroscopically scan the sample and to determine a plurality of quantities of a corresponding plurality of hydrocarbons in the same. The computer system includes one or more processors to perform operations including receiving the plurality of quantities of the plurality of hydrocarbons in the sample and determining a plurality of ratios, where each ratio is a ratio of one of the plurality of hydrocarbons with another of the plurality of hydrocarbons.

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