Why is formation volume factor important?
Table of Contents
- 1 Why is formation volume factor important?
- 2 How do you find the volume of a hydrocarbon?
- 3 What is Bo in reservoir engineering?
- 4 How do you calculate water formation volume factor?
- 5 How do you calculate recovery factor for oil and gas?
- 6 How do you calculate reservoir bulk volume?
- 7 How do you calculate the volume of hydrocarbons in a reservoir?
- 8 How is hydhydrocarbon pore volume calculated?
Why is formation volume factor important?
The oil formation volume factor is a measure of the degree of change in oil volume as it is produced from the reservoir and brought to surface conditions. In the subsurface formation, pressure as well as temperature is significantly higher than stock-tank conditions.
What is formation volume factor?
Formation volume factor is a measure of the ratio of the volume occupied by a fluid phase at reservoir conditions divided by the volume occupied by the fluid phase at surface conditions.
How do you find the volume of a hydrocarbon?
If all the hydrocarbons are to be produced as gas at the surface, the gas volume can be calculated by multiplying the number of moles by 379 (one pound-mole of any gas occupies 379 cubic feet at the standard conditions of 14.7 psia and 60o F).
What is solution GOR?
The solution gas-oil ratio (GOR) is a general term for the amount of gas dissolved in the oil. Heavy oils (lower API gravity) has lower capacity to contain dissolved gas than lighter oils. Solution GOR in black oil systems typically range from 0 to approximately 2000 scf / bbl.
What is Bo in reservoir engineering?
Bo = volume of oil + dissolved gas leaving reservoir at reservoir conditions / volume of oil entering stock tank barrel at standard conditions. This is typical in petroleum engineering. The units of the formation volume factor are res bbl/STB (reservoir barrels per STB).
How do you calculate formation factor?
Unless otherwise stated, the term formation factor usually refers to the apparent formation factor. F has been related to porosity (phi) by several formulae (Archie, Humble and others) that have the general expression F = a / phim, where a is a constant and m the porosity exponent.
How do you calculate water formation volume factor?
The produced water formation volume factor (FVF), Bw, is defined as the volume at reservoir conditions occupied by 1 stock tank barrel (STB) of formation water plus its dissolved gas….Nomenclature.
| Bw | = | Water formation volume factor |
|---|---|---|
| ρrc | = | density of water at reservoir conditions, lbm/ ft3 |
What is hydrocarbon pore volume?
[¦hī·drə′kär·bən ′pȯr ‚väl·yəm] (petroleum engineering) The pore volume in a reservoir formation available to hydrocarbon intrusion.
How do you calculate recovery factor for oil and gas?
Recovery factor (RF) = over all proportion of oil expected to be recovered from the reservoir = production + proven and probably reserves/ Stock Tank Oil Initially In Place (STOIIP) or Oil Originally In Place (OOIP). RF = RFp + RFs + EOR + proven and probably reserves.
What is the amount of oil?
Summary Table
| Oil Reserves | 1,650,585,140,000 | barrels |
|---|---|---|
| Oil Consumption | 35,442,913,090 | barrels per year |
| 97,103,871 | barrels per day | |
| Reserves/Consumption | 47 | (years left) |
How do you calculate reservoir bulk volume?
The bulk volume of water (BVW) in a reservoir is simply the product of the water saturation (Sw) times the porosity (ɸ), or stated mathematically: BVW = Sw × ɸ.
What is meant by oil formation volume factor?
Oil formation volume factor is defined as the volume of oil (and dissolved gas) at reservoir pressure and temperature required to produce one stock tank barrel of oil at the surface. The oil formation volume factor is expressed in units of reservoir volume over standard volume (usually rbbl/STB).
How do you calculate the volume of hydrocarbons in a reservoir?
Reservoir hydrocarbon volume in acre-foot rock = 43,560 × 0.3 × (1-0.12) = 11,500 cubic feet. Using general gas equation, calculate number of moles, = PV/zRT = (3,000 × 11,500)/ (0.835 × 10.73 × 700) = 5,500 pound moles. If all this hydrocarbon were to be produced as gas, gas volume would be = 5,500 × 379 =
What is the difference between gas expansion factor and volume factor?
The gas expansion factor is normally used for estimating gas reserves. The gas formation volume factor is used to relate the volume of gas, as measured at reservoir conditions, to the volume of the gas as measured at standard conditions; that is, 60°F and 14.7 psia.
How is hydhydrocarbon pore volume calculated?
Hydrocarbon pore volume is determined from the geological (area and average reservoir thickness) and petrophysical (porosity and net to gross—NTG) input ( Fig. 6.1 ). Where we have limited data in early field life, we take single values for reservoir area and average values for net thickness, porosity, and water saturation, so that