Zhou Xin
2003
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Journal
Petroleum Geology & Oilfield Development in Daqing
Abstract
Monitoring the content of the surfactant in the produced liquid from EOR test area is an important indication for understanding the direction of injectant and the displacement characteristics . Carboxylate is a kind of the surfactant used generally in oilfield.Through researching into the detecting method of the content of carboxylic acid salt, we set up two kinds of adaptive methods: DDC colorimetry method and parvafacies method. The result of evaluated test demonstrates that the new methods are accurate and have a good oil recovery,and the result of the test in fieldwork demonstrates that these methods accord with the actual condition of fieldwork, and they are easily operated and suitable for the application in oilfield .