Glass transition in viscous crude oils under pressure

• The transitions to the glassy state in viscous crude oils have been investigated at high pressures by the transient hot-wire method, by differential scanning calorimetry, and by equation-of-state measurements. The range of pressures investigated was up to 1.2 GPa in the temperature interval 150-370 K. The glass transition in crude oils is a common phenomenon and occurs due to the viscosity increase on decreasing the temperature or increasing the pressure. The actual transition coordinates depend not only on physical properties but also on the characteristic experimental time.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Glass transition

high pressure

crude oils

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)