How do you calculate hydrocarbon volume?
How do you calculate hydrocarbon volume?
Hydrocarbon Volume = Pore Volume x (1 Water Saturation) STOOIP/STOIIP = Hydrocarbon Volume / Oil Formation Volume Factor.
How do you calculate hydrocarbon saturation?
Determination of saturation. The fraction of pore space containing water is termed water saturation (Sw). The remaining fraction containing oil or gas is termed hydrocarbon saturation (Sh) which equals (1 − Sw).
How do you find the original gas in place?
5.2: Estimation of Original Gas In-Place, OGIP, Using the Volumetric Method
- Equation 5.01a. or, equivalently (after applying the Saturation Constant): G=Vgrv(¯hn/¯hg)ˉϕ(1−¯Swι)¯Bgι
- Equation 5.01b. Where: G is the original-gas-in-place of the reservoir, SCF.
- Equation 5.02. Where: Vgrv is the gross rock volume, ft.
What is volumetric equation?
From SubSurfWiki. The expression for total in-place hydrocarbon volume V, according to the equation (for oil): V = A × T × G × ϕ × N : G × S O × 1 B O {\displaystyle V=A\times T\times G\times \phi \times N\!
Is STB the same as bbl?
1.2. 1 General definitions. Oilfield units volumes in oilfield units are barrels (bbl or B); 1 bbl=5.615 ft3 or 0.159 m3. A STB is the same volume defined at some surface standard conditions (in the stock tank) which are usually 60°F and 14.7 psi.
What is oil initially in place?
Oil initially in place (OIIP) is the amount of crude oil first estimated to be in a reservoir. Oil initially in place differs from oil reserves, as OIIP refers to the total amount of oil that is potentially in a reservoir and not the amount of oil that can be recovered.
What is Archie equation?
1. n. [Formation Evaluation] A particular relation proposed by G.E. Archie between the formation factor (F) and porosity (phi), in which F = 1 / phim, where the porosity exponent, m, is a constant for a particular formation or type of rock.
How do I calculate saturation?
The natural logarithm of saturation pressure divided by 6.11 raised as a power of e equals the saturation pressure divided by 6.11. Calculate e–a constant that equals 2.71828183–raised to the power of the product from the prior step. Multiply the value of raised e by 6.11 to solve for the saturation pressure.
How do you calculate gas formation volume factor?
Formation volume factor is defined as the ratio of gas volume at reservoir condition to the gas volume at standard condition, that is,(2.45)Bg=VVsc=pscpTTscZZSC=0.0283zTpwhere the unit of formation volume factor is ft3/scf.
What is empirical formula of hydrocarbon?
For example, the empirical formula of a hydrocarbon is CH 2 and its M r is 42. the mass of the atoms in the empirical formula is 14. 42 ÷ 14 = 3.
Which hydrocarbon formula is also an empirical formula?
Ethene is a small hydrocarbon compound with the formula C2H4 (see figure below). While C2H4 is its molecular formula and represents its true molecular structure, it has an empirical formula of CH2. The simplest ratio of carbon to hydrogen in ethene is 1:2.
What is Q in Q VA?
This is expressed in the Continuity Equation: Where: Q = the volumetric flow rate. A = the cross sectional area of flow. V = the mean velocity.
What are the two formulas for volume?
Perimeter, Area, and Volume
| Table 3. Volume Formulas | ||
|---|---|---|
| Shape | Formula | Variables |
| Cube | V=s3 | s is the length of the side. |
| Right Rectangular Prism | V=LWH | L is the length, W is the width and H is the height. |
| Prism or Cylinder | V=Ah | A is the area of the base, h is the height. |
How do you convert bbl to STB?
qw = STB/day for water (at stock tank conditions) qg = SCF/day for gas (at standard conditions)…3.1: Oilfield Measures and Units.
| 1 MMSTB | = 1,000 MSTB | = 1,000,000 STB |
|---|---|---|
| 1 MMbbl | = 1,000 Mbbl | = 1,000,000 bbl |
| 1 MMSCF | = 1,000 MSCF | = 1,000,000 SCF |
| 1 MM ft3 | = 1,000 M ft3 | = 1,000,000 ft3 |
| 1 MMSTB/day | = 1,000 MSTB/day | = 1,000,000 STB/day |
What is STB in oil and gas?
Term. Definition. STB. Stock tank barrel, the volume of a barrel of oil at the earth’s surface as opposed to the corresponding volume in the subsurface.
How do you calculate oil formation volume factor?
How are reserves different from oil in place?
Oil reserves denote the amount of crude oil that can be technically recovered at a cost that is financially feasible at the present price of oil. Hence reserves will change with the price, unlike oil resources, which include all oil that can be technically recovered at any price.
Why is Archie’s equation only applicable to sandstone and carbonate?
The Archie equation is valid only when the rock is strongly water wet and clay free, which is not the case in carbonate rocks. There is no linear or direct correlation between resistivity index (IR) and formation water saturation in the carbonate rocks.
What is the importance of density parameter in hydrocarbon?
It is known that the density parameter may reveal important and crucial information about the presence and saturation of hydrocarbon, especially gaseous hydrocarbon.
How do you calculate the volume of a hydrocarbon gas?
Using general gas equation, calculate number of moles, N = 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 =
Is density contrast related to gas saturation in hydrocarbon?
The density contrast parameter may reveal important and crucial information about the presence and saturation of hydrocarbon. In this paper, we demonstrate the relation between density contrast and gas saturation and a methodology for extracting this parameter from seismic data. We used both the linear and nonlinear formulation of the AVA equation.
What are the physical data of hydrocarbons?
Hydrocarbons – Physical Data Molweight, melting and boiling point, density, flash point and autoignition temperature, as well as number of carbon and hydrogen atoms in each molecule for 200 different hydrocarbons. Sponsored Links
