oil volume factor in formation
volume factor of formation crude oil
flash oil volume factor
original oil volume factor
bubble-point formation volume factor
factor formation volume
formation volume factor
gas formation volume factor
gas-cap formation volume factor
original formation volume factor
reciprocal formation volume factor
total formation volume factor
two-phase formation volume factor
Ⅰ oil formation in Xing’anling Group
Ⅶ Oil Formation of He-3 member
Acid treatment of oil formation
bulk-oil(-volume) breaker
bulk-oil-volume breaker