一、前言在原油开采过程中,随着原油的产出伴随有大量的水份和气体同时产出。尤其是在开采后期,注水工艺的实施,使得原油中的含水量更高。为了准确得到原油的实际产量,对其含水量的测量是必不可少的工序。目前检测原油含水量的方法很多,有电容法、微波法和重力分析法等。作为原油含水量的检测仪表,由于油田特殊环境及其条件的限制,必须保证仪表系统简单可靠、使用维护方便,并能保证一定的测试精度。现有的“电容法原油含水分析仪”虽说具有简单可靠,使用维护方便之优点,但其只适应于测量“油包水”型介质,而不能满足原油含水的全范围测量;“微波法原油含水分析仪”由于采用了高技术的微波技术,对使用者的使用和维护都造成了困难;而“重力分析法”的分析精度还有待于提高。因此原油含水量的测量 I. Introduction In the process of crude oil exploration, along with the output of crude oil, a large amount of water and gas are simultaneously produced. Especially in the late mining, the implementation of water injection process, making the water content of crude oil higher. In order to accurately obtain the actual output of crude oil, its moisture content measurement is an essential process. Currently there are many ways to detect the water content of crude oil, there are capacitance method, microwave method and gravity analysis method. As a crude oil moisture content of the instrumentation, due to the special circumstances of the oil field and its limitations, we must ensure that the instrumentation system is simple and reliable, easy to use and maintain, and can guarantee a certain degree of test accuracy. The existing “capacitance method crude oil water analyzer” although has the advantages of simple and reliable, easy to use and maintain, but it is only suitable for measuring “water-in-oil” type of medium, and can not meet the full range of crude oil moisture measurement; “microwave crude oil Due to the adoption of high-tech microwave technology, the hydroscopic analyzer has caused difficulties for the users’ use and maintenance. However, the analytical accuracy of ”Gravity Analysis" still needs to be improved. Therefore, the measurement of crude oil moisture content