ABSTRACT
There are fourteen blocks which have stepped into
the stage of water flooding after polymer flooding.
The geological reserves of polymer layers in these
blocks is 2.48x10
t; there are a total of 2361 wells;
the recovery percent has reached about 52.8%; and
there is still a lot of residual oil underground. Clear-
ing the remaining oil distribution is the basis for
guiding remaining oil tapping after polymer flood-
ing. So far, many scholars have studied on the re-
maining oil distribution after polymer flooding. The
researches include the influential factors on polymer
flooding, the macro-scale and micro-scale remaining
oil distribution after polymer flooding, and the tech-
nology for tapping the remaining oil after polymer
flooding. In this paper, the rule of remaining oil dis-
tribution after polymer flooding was studied by
combining percolation mechanism analysis and nu-
merical simulation as well as further methods.
