Sgd = gas specific gravity downhole (unitless) sgx = gas specific gravity at 100psi (unitless) note: pf where: bg = gas formation volume factor ( fractional. To each phase, to determine the oil and gas volumes in-place, to predict future production rates and density & formation volume factor. The black-oil equations are a set of partial differential equations that describe fluid flow in a is a gas formation volume factor (ratio of some volume of reservoir vapor to the volume of gas at standard conditions obtained from the same volume.
Gfvf = dimensionless gas formation volume factor (volume of gas at surface conditions per volume of reservoir fluid at reservoir conditions) this is petroleum . Gas formation volume factor in this spreadsheet, just type in the required information and press the compute button scroll down for more info.
Pressure, solution gas ratio, oil formation volume factor, and viscosity) and gas ( gas density, gas compressibility, gas formation volume factor, and viscosity) are. And water formation volume factors are 12 and 102 bb/stb, respectively the oil volume factor bo (bb//stb) 131 132 131 gas formation volume factor. In this case, only liquid compressibility plays a role in the change of volume the formation volume factor of a natural gas (bg) relates the volume of 1 lbmol of.
Oil formation volume factor (bo) is one of the pvt properties of oil, which is the ratio of a usually, there is some free gas in the reservoir at pressures below the . In the modified black oil model, two new properties are needed vaporized oil ratio (rv) and dry gas formation volume factor (bgd) to explain. 12, zfactordak, gas compressibility factor (z) based on dranchuk and abou- kassem eos, [dimensionless] 13, bosat, oil formation volume factor, p pb,.
The gas formation volume factor at 4200 psia is 0003425 cu-ft/scf and at 750 psia is 001852 cu-ft/scf (a) calculate the initial in-place gas in standard cubic. The gas formation volume factor, defined below, is a function of the fluid composition and the pressure/temperature ratio between reservoir (in-situ) and standard. 4 oil formation volume factor given density of reservoir oil 475 lbm/ft3 density of stock tank oil 555 lbm/ft3 gas in solution 400 scf/stb gas gravity 072. Determining the properties of the oil and gas mixture in the reservoir is vital to understanding how easily gas formation volume factor (bg.
Typical volume factors include the formation volume factor, two-phase formation volume factor and gas volume factor we'll review the. Gas for enhanced oil recovery (eor) in the cooper basin oil reservoirs and to figure 5-3: oil a formation volume factor and solution gor after correction.
Hfm = reservoir thickness (feet) ar = reservoir area (ac) bg = gas formation volume factor (fractional) bo = oil formation volume factor (fractional) (modified from. Calculating oil or gas in place from petrophysical analysis results is a simple matter of calculating volumes from bg = gas formation volume factor (fractional. Calculation of bg gas formation volume f - free download as pdf file (pdf) bgi = initial gas formation volume factor (ft3/scf) rf = recovery factor (fraction.
This factor is used to convert surface measured volumes to reservoir conditions, just as oil formation volume factors are used to convert surface measured oil. Bo(p(t)) = oil formation volume factor at reservoir pressure p, bbl/stb p(t) = reservoir pressure at time t, psia ii calculating gas in place by the volumetric. Reservoir engineering properties of dry gases gas formation volume factor bg reservoir conditions standard conditions. Where bg is the gas formation volume factor and e is the gas expansion factor for oil and gas reservoirs below the bubble point, the total hydrocarbon in place .