Отправлено: 22.05.13 05:08. Заголовок: Residual Oil Saturations Determined by Core Analysis

SPE 17686
Residual Oil Saturations Determined by Core Analysis
Kennaird, T., Core Laboratories Intl.
Ltd. (Singapore)
This paper was prepared for presentation at the 7th Offshore South
East Asia Conference held in Singapore, 2-5 February 1988.
This paper was selected for presentation by a programme committee
following review of information in an abstract. Contents of the paper have not
been reviewed by OSEA and are subject to correction by the author(s).

ABSTRACT
Residual oil saturation determined by several laboratory techniques on core plug specimens from a
variety of lithologies in the Asia-Pacific region have been correlated to porosity , initial water
saturation and permeability.
To some extent, residual oil decreased with increasing initial water saturation and decreasing permeability .
For the same mean hydraulic radius ( ) residual oil left after gas-drive was much higher than that for a
water-drive.
On the average, residual oil saturation from steady-state water-oil relative permeability data were higher than those from the
unsteady-state floods.
This is an apparent reflection of the fact that steady-state floods are typically conducted at lower flow-rates than
unsteady-state floods.