Core Laboratories has developed the Pressurized
Fluid Imaging System for viewing reservoir fluids with a solids deposition potential under high pressure
and temperature conditions.
This system was designed in consultation with and on the request of major oil
producing companies, and will be used to determine conditions under which asphaltenes or organic solids
become visible under a range of light conditions.
The PFI System is capable of viewing flowing or static fluids under varying pressure and temperature conditions.
The depressurization component is automated to reduce pressure in the system over a period of 1 -100 hours over a
pressure range of 0 - 20,000 psig. During depressurization, the pumps are continually circulating the sample through
the flow cell. The imaging system is computer-controlled to allow image capture from < 0.2 seconds upwards. The entire
depressurization process is digitally recorded and reported on video. The magnification allows viewing of deposits down
to a range of 1.2 mm, or smaller, in size depending on the intensity of the light source. It is estimated the smallest
viewed image would be ~0.6 mm. Particle size analysis software allows the evaluation of particle distribution by approximately 50 parameters.
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