ABSTRACT
There are abundant heavy oil resources in Bohai Oil-
field. The proven reserve is up to 4 billion tons, re-
coverable reserve is about 0.8 billion tons if 20 % oil
recovery are obtained. Most of the heavy oil reser-
voirs are conventional for lower heavy oil viscosity
(usually below 2000 mPa.s under reservoir condi-
tions), and typical blocks of heavy oil reservoirs in-
clude Lvda, Nanpu (NB), Suizhong, Chengbei, and
so on. Properties of these typical reservoirs are
summarized in Table 1.