After the nullification of that reply,two problems should be solved:it is not appropriate to totally deny conditional constitutional interpretation; it is not appropriate to totally deny the strive to perfect tort law system of China aroused by the reply.

Study on empirical equation of initial gas-oil ratio and volume factor;

The oil volume factors must be disposed even and orderly in order to meet the need of calculation in reservoir engineering.

Well production component was applied to simulate and calculate the properties of black oil such as bubble-point pressure,gas-oil ratio,oil viscosity,volume factor,and so on.