Description: Initial steps have been taken to measure the mass of water in vapor and liquid phases downhole in a steam injection heavy oil recovery system. A suitable portion of the electromagnetic spectrum has been identified over which the presence of liquid water and vapor can be separated. This is in the near infrared and extends from ~900 nm to 1.8 µm region. A high pressure and high temperature cell has been constructed and tested for stagnant transmissions. Pitting of the optical ports due to the presence of high-pressure (8.5 MPA) and high temperature (300C) water has lead to a redesign of the optical ports, these modifications will be incorporated in the next quarter. The actual determination of the mass of water, either in liquid or vapor, has not been reliably determined, due in part to the pitting problems being addressed in the modification. However, qualitative data has been recorded clearly showing an increase in absorption with increasing number of absorbing molecules, i.e. mass of water.
Date: April 1, 1998
Creator: Donaldson, A. B. & Allen, Graham R.
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Partner: UNT Libraries Government Documents Department