sponsored jointly by the National Key Basic Research Program of China(No.2013CB328706);the Special-funded Program on National Key Scientific Instruments and Equipment Development(No.2012YQ140005);the Beijing National Science Foundation(No.4122064);the Science Foundation of China University of Petroleum(Beijing)(No.QZDX-2010-01 and KYJJ2012-06-27)
We measured the water content (0.01% 0.25% w/w) in crude oil emulsions using terahertz time-domain spectroscopy (THz-TDS). To improve the precision and range of the measurements, we used 1 and 10 mm thick quartz c...