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Measurement of partition coefficients of phenol and cresols in gas-charged crude oil/water systems

Lookup NU author(s): Dr Barry Bennett, Professor Andrew Aplin, Professor Stephen Larter


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An instrument has been constructed for monitoring the partition coefficients of phenol and cresols between crude oil and water under sub-surface conditions. The device has the capacity for introducing methane gas into crude oil, thereby allowing measurements under live oil (solution gas-containing) conditions. The partition coefficients of phenol and cresols have been measured in crude oil: water substrates under "live" oil and "dead" oil (without solution gas) conditions over a temperature range 25-150degreesC. Over the range investigated it is seen that the introduction of gas (crude oil saturated at 100 bar with methane) into the system resulted in an approximate doubling of partition coefficients compared to the equivalent dead oil: brine systems. The partition coefficient data obtained using the device may be employed in a number of petroleum exploration and production activities such as the determination of residual oil saturation of a water-flooded petroleum reservoir. Partition coefficient measurements may help in predicting toxic organic solute loadings in oilfield discharge waters. (C) 2003 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Bennett B, Aplin AC, Larter SR

Publication type: Article

Publication status: Published

Journal: Organic Geochemistry

Year: 2003

Volume: 34

Issue: 12

Pages: 1581-1590

ISSN (print): 0146-6380

ISSN (electronic): 1873-5290


DOI: 10.1016/j.orggeochem.2003.08.008


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