油田乳化水氯离子含量测定方法研究

Study on Determination Method of Chloride Content in Emulsified Water in Oil Field

油田开发中,准确测定采出水中氯离子含量是非常重要的。离心乳化水稀释法是把氯离子含量测定扩展到低含水或者只含乳化水的原油样品。通过对原油乳化水状态的研究,凭借离心法原理脱水,然后进行稀释乳化水的方法,对原油中乳化水的氯离子含量进行了试验测定,并修改了分析乳化水氯离子含量的测定步骤,计算公式,使原油无论高含水还是低含水的情况下都能正常分析测定,扩大采出水氯离子含量分析测定的范围。

In the development of oil field,it is very important to determine the chloride content in produced water accurately.The centrifugal emulsification water dilution method is used to extend the determination of chloride content to low water content or emulsified water only crude oil samples.Through the study of the state of the emulsified water of crude oil,by virtue of the principle of dehydration by centrifuge,and then the method of diluting the emulsified water,the chlorine ion content of the emulsified water in the crude oil is tested and the determination of the content of the chloride ion in the emulsified water is modified and the formula is calculated to make the original oil in the case of high water cut or low water cut.It can analyze and determine the content of chloride ion in the produced water.