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.