Oil in place calculation formula
{\displaystyle B_{o}\,}. = oil formation volume factor, rbbl/STB; STOIIP = stock-tank oil initially in place, STB. Equation 2 is used to calculate bulk volume of the Petroleum calculator solving for oil recovery factor given estimate of recoverable oil and estimate of in place oil. in place (GIIP, P50) and 31.4 billion barrels of oil initially in place (OIIP, P50). The In this formula G is the Langmuir factor, which is calculated through: G. V. Ga. Provide the basic principles of the material balance equation and other governing oil in place; if some other features are present to assist, however, such as a. 13 Jan 2014 This equation is derived from a special case, where it is assumed that in the percentage of 'oil in place' that is recovered (i.e. recovery factor).
Calculation of hydrocarbon reserves can be done by using formula of original oil in place (OOIP). The formula is a function of volumetric (height x area), porosity(¢) and saturation water (SW) with the mathematic equation: OOIP = 7758 x (¢) x (1-SW) x volumetric. Before calculating the reserves, we need to compute those elements of function.
Oil Initially In Place - OIIP: The amount of crude 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 Volumetric Calculations I. Calculating Oil in Place by the Volumetric Method Oil in place by the volumetric method is given by: Where: N(t) = oil in place at time t, STB V b = 7758 A h = bulk reservoir volume, bbl 7758 = bbl/acre-ft A = area, acres h = thickness, ft φ(p(t)) = porosity at reservoir pressure p, fraction S Oil in place is the total hydrocarbon content of an oil reservoir and is often abbreviated STOOIP, which stands for Stock Tank Original Oil In Place, or STOIIP for Stock Tank Oil Initially In Place, referring to the oil in place before the commencement of production. In this case, stock tank refers to the storage vessel OIL and gas in place anD reserves. Calculating oil or gas in place from petrophysical analysis results is a simple matter of calculating volumes from reservoir thickness, porosity, and water saturation. The area of the reservoir is usually contoured from maps of the reservoir properties. Calculating oil volume in place. To calculate volume of original oil in place (OOIP original oil in place)in barrels from volume measured in acre-feet, use the following formula: where: 7758 = conversion factor from acre-ft to bbl barrels; A = area of reservoir, acres from map data h = thickness of reservoir pay, ft Φ = porosity (decimal, not percent) Oil in place (OIP) (not to be confused with original oil-in-place (OOIP)) is a specialist term in petroleum geology that refers to the total oil content of an oil reservoir.
The initial oil in place for a solution gas/depletion drive reservoir is estimated, utilizing the generalized material balance equation and performance data.
Step 5. Calculate the gas solubility when all the trapped gas is dissolved in the oil by applying Equation 14-4:. 10 Apr 2016 To estimate oil initially volume in place, the following formula is a volumetric calculation for oil. STOIIP. Where;. STOIIP = stock tank oil in place,
Calculating oil or gas in place from petrophysical analysis results is a simple matter of calculating volumes from reservoir thickness, porosity, and water saturation.
The initial or original oil in place can be estimated from the volumetric equation: (5.2.46) N = 7 , 758 V b ϕ ( S o i ) B o i = 7 , 758 A h ϕ ( 1 − S w i ) B o i Formula: S T O I I P = 7758 × A × h × ɸ (1-S w c) B o i Where, A = area. h = reservoir thickness. ɸ = rock porosity. Swc = connate water saturation. Boi = oil formation volume factor Calculation of hydrocarbon reserves can be done by using formula of original oil in place (OOIP). The formula is a function of volumetric (height x area), porosity(¢) and saturation water (SW) with the mathematic equation: OOIP = 7758 x (¢) x (1-SW) x volumetric. Before calculating the reserves, we need to compute those elements of function. The average reservoir temperature is 116 o F and the API gravity of oil is 46. Standard correlations 5 were used to calculate B o, and it was found to be 1.25 RB/STB. The bubble point pressure was calculated by standard correlations 5 to be around 1370 psia. Initial reservoir pressure, calculated from DST analysis, 7 11. Calculate the number of pound-moles in gas by dividing the gas-condensate ratio (gas volume in cubic feet per barrel of condensate) by 379. 12. Based on known moles of gas and condensate, determine the fraction of produced gas and condensate in the reservoir fluid stream. Petroleum Office is a Excel Addin for petroleum engineers. Excel Addin for Petroleum Engineers. Get Free Trial More Info. 170 Excel Functions for Petroleum Engineering Petroleum Office provides a large collection of specialized functions for oil and gas professionals. Keep all related inputs and calculations in one place. Less copying
Oil in place (OIP) (not to be confused with original oil-in-place (OOIP)) is a specialist term in petroleum geology that refers to the total oil content of an oil reservoir.
OIL and gas in place anD reserves. Calculating oil or gas in place from petrophysical analysis results is a simple matter of calculating volumes from reservoir thickness, porosity, and water saturation. The area of the reservoir is usually contoured from maps of the reservoir properties. Oil in place (OIP), or oil-in-place (not to be confused with original oil-in-place) is the estimated amount of oil in a reservoir. A variety of techniques, combined with mathematical equations, is used to determine OIP. Only a fraction of the OIP, called the recovery factor, can be recovered from a reservoir. estimate of in place oil (EIPO) meter^3 barrel UK barrel US dry barrel US federal barrel US liquid barrel US oil petroleum bushel UK bushel US dry centimeter^3 cord firewood cord foot wood cup Canada cup metric cup US deciliter decimeter^3 foot^3 gallon UK gallon US liquid inch^3 kilometer^3 liter milliliter millimeter^3 ounce UK fluid ounce US fluid pint UK pint US quart UK quart US stere tablespoon UK tablespoon US teaspoon UK teaspoon US yard^3
Oil in place is the total hydrocarbon content of an oil reservoir and is often abbreviated STOOIP, which stands for Stock Tank Original Oil In Place, or STOIIP for Stock Tank Oil Initially In Place, referring to the oil in place before the commencement of production. In this case, stock tank refers to the storage vessel OIL and gas in place anD reserves. Calculating oil or gas in place from petrophysical analysis results is a simple matter of calculating volumes from reservoir thickness, porosity, and water saturation. The area of the reservoir is usually contoured from maps of the reservoir properties. Calculating oil volume in place. To calculate volume of original oil in place (OOIP original oil in place)in barrels from volume measured in acre-feet, use the following formula: where: 7758 = conversion factor from acre-ft to bbl barrels; A = area of reservoir, acres from map data h = thickness of reservoir pay, ft Φ = porosity (decimal, not percent) Oil in place (OIP) (not to be confused with original oil-in-place (OOIP)) is a specialist term in petroleum geology that refers to the total oil content of an oil reservoir. Gas initially In Place. Gas/Oil Ratio (scf/bbl) Gas/Oil Ratio (GOR) is the ratio of the volume of gas that comes out of solution, to the volume of oil at standard conditions. The volume of oil will therefore shrink slightly after the gas has been liberated. The units are therefore a ratio of standard cubic feet of gas (scf) per barrel of oil (bbl).