本文针对国内正在使用和将要使用的美国引进热采锅炉,提出利用标准孔板装置连续测量出口蒸汽干度的简便可靠方法。为了精确地测定实际注入油井的湿蒸汽流量,还需加装另一孔板,按测得的压差,可算出该流量数值。类似的方法也可用来解决一台锅炉分注若干口井的流量测量问题。 This paper aims at the introduction of thermal recovery boilers in the United States, which are being used and to be used in China, and proposes a simple and reliable method for continuously measuring the dryness of the outlet steam by using a standard orifice device. In order to accurately measure the amount of wet steam actually injected into a well, another orifice plate needs to be installed to calculate the flow rate value based on the measured pressure difference. A similar approach can also be used to solve the problem of flow measurement in a well that dispenses several wells.