# Oil Formation Volume Factor Formula

Written by Agus Aug 04, 2021 · 11 min read Oil Formation Volume Factor Formula. Where bo= oil formation volume factor, bbl/stb, (vo)p,t= volume of oil under pressure p and temperature t, and (vo)sc= volume of oil is at standard conditions . Reserve = v φ s 0 b 0 × recovery factor here, v is reservoir volume, φ is average porosity, s 0 is the average oil saturation, and b 0 is oil formation volume factor. B o is the oil phase formation volume factor at p r and t r, bbl/stb; Total formation volume factor, bt bt bo bg rsb rs above pb, bt = bo 13. Two Phase Oil Formation Volume Factor (Bt) Top Dog Engineer From topdogengineer.com

Gamma_g = gas gravity (air=1.0), [0.59,0.95] tr = reservoir temperature, f, [100,258] and. Dindoruk and christman correlation for oil formation volume factor, p = pb, [bbl/stb] Standing initially produced a graphical correlation for estimating the oil formation volume factor, and later expressed the graph by the following correlation: It has since been shown that f is independent of r w only for a certain class of petrophysically simple. M g = gas molecular weight, m, lbm/lbm mol m go = gas/oil mixture molecular weight, m, lbm/lbm mol m o = Total formation volume factor, bt bt bo bg rsb rs above pb, bt = bo 13.

### Each data set contains reservoir temperature, oil gravity, total solution gas oil ratio, average gas gravity, and oil formation volume factor.

That is, (2.6) b o = v r e s v s t , Total formation volume factor, bt bt bo bg rsb rs above pb, bt = bo 13. Gor = r s + [k rg / kro] [μ o b o / μgbg] gor = 11 + [12/16] [7 x 18 /9 x 22] gor = 11 + [12/16] [126/198] gor = 11 + [12/16] [0.63] gor = 11 + [0.75] [0.63] gor = 11 + 0.477 gor = 11.477. K ro = relative permeability to oil = 16 b g = gas formation volume factor = 22 b o = oil formation volume factor = 18. Gamma_g = gas gravity (air=1.0), [0.59,0.95] tr = reservoir temperature, f, [100,258] and. = stock tank oil density, kg/m 3. Source: es.slideshare.net

The formation volume factor of an oil or condensate (b o) relates the volume of 1 lbmol of liquid at reservoir conditions to the volume of that liquid once it has gone through the surface separation facility. • oil formation volume factor reflects these changes • more fundamentally in the coefficient of compressibility of the oil. Reserve = v φ s 0 b 0 × recovery factor here, v is reservoir volume, φ is average porosity, s 0 is the average oil saturation, and b 0 is oil formation volume factor. Total formation volume factor, bt bt bo bg rsb rs above pb, bt = bo 13. = oil specific gravity, dimensionless. Source: youtube.com

It has since been shown that f is independent of r w only for a certain class of petrophysically simple. Oil compressibility • volume changes of oil above the bubble point are very significant in recovering undersaturated oil. Bo= oil formation volume factor, bbl/stb. [formation evaluation] the ratio of the resistivity of a rock filled with water (r o) to the resistivity of that water (r w).g.e. K ro = relative permeability to oil = 16 b g = gas formation volume factor = 22 b o = oil formation volume factor = 18. Source: slideshare.net

Archie postulated that the formation factor (f) was a constant independent of r w and solely a function of pore geometry (the archie equation i). Gamma_g = gas gravity (air=1.0), [0.59,0.95] tr = reservoir temperature, f, [100,258] and. Where bo= oil formation volume factor, bbl/stb, (vo)p,t= volume of oil under pressure p and temperature t, and (vo)sc= volume of oil is at standard conditions . Each data set contains reservoir temperature, oil gravity, total solution gas oil ratio, average gas gravity, and oil formation volume factor. Reserve = v φ s 0 b 0 × recovery factor here, v is reservoir volume, φ is average porosity, s 0 is the average oil saturation, and b 0 is oil formation volume factor. Source: slideshare.net

Reserve = v φ s 0 b 0 × recovery factor here, v is reservoir volume, φ is average porosity, s 0 is the average oil saturation, and b 0 is oil formation volume factor. = oil specific gravity, dimensionless. • oil formation volume factor reflects these changes • more fundamentally in the coefficient of compressibility of the oil. The formula for calculating the total fvf: K ro = relative permeability to oil = 16 b g = gas formation volume factor = 22 b o = oil formation volume factor = 18. Source: researchgate.net

B t = total fvf The formation volume factor of an oil or condensate (b o) relates the volume of 1 lbmol of liquid at reservoir conditions to the volume of that liquid once it has gone through the surface separation facility. That is, (2.6) b o = v r e s v s t , K w = watson characterization factor, °r 1/3: (vo)p, t= volume of oil under reservoir pressure, p, and temperature, i, bbl. Source: slideshare.net

• oil formation volume factor reflects these changes • more fundamentally in the coefficient of compressibility of the oil. (vo)p, t= volume of oil under reservoir pressure, p, and temperature, i, bbl. The formula for calculating the total fvf: = oil density at reservoir conditions, kg/m 3. Standing initially produced a graphical correlation for estimating the oil formation volume factor, and later expressed the graph by the following correlation: Source: researchgate.net

Bo= oil formation volume factor, bbl/stb. This correlation was made from the differential liberation curves of 159 analyses of saturated eastern venezuelan crudes. K w = watson characterization factor, °r 1/3: Reserve = v φ s 0 b 0 × recovery factor here, v is reservoir volume, φ is average porosity, s 0 is the average oil saturation, and b 0 is oil formation volume factor. Each data set contains reservoir temperature, oil gravity, total solution gas oil ratio, average gas gravity, and oil formation volume factor. Source: slideshare.net

That in this work a universal ann model for oil fvf is sought for while that of is for different api classes. Bo = oil formation volume factor, bbl/stb, rs = solution gor, scf/stb, [20,1425]. Gamma_g = gas gravity (air=1.0), [0.59,0.95] tr = reservoir temperature, f, [100,258] and. = stock tank oil density, kg/m 3. M g = gas molecular weight, m, lbm/lbm mol m go = gas/oil mixture molecular weight, m, lbm/lbm mol m o = Source: topcargmain.blogspot.com

It has since been shown that f is independent of r w only for a certain class of petrophysically simple. F = rs*(gamma_g/gamma_o)**0.5 + 1.25*t. For more info, refer tovasquez & beggs(best),lasater(better), orstanding(good). “ formation volume factor of oil” is defined as the volume occupied in the reservoir at the prevailing pressure and temperature by volume of oil in stock tank, plus its dissolved gas; [formation evaluation] the ratio of the resistivity of a rock filled with water (r o) to the resistivity of that water (r w).g.e. Source: slideshare.net

Where bo= oil formation volume factor, bbl/stb, (vo)p,t= volume of oil under pressure p and temperature t, and (vo)sc= volume of oil is at standard conditions . B t = total fvf = oil formation volume factor, rm 3 /sm 3. Note that here porosity and saturation are estimated (using different sources of information such as well logging, well tests, and seismic data) and have their own uncertainties. (vo)sc= volume of oil is measured under standard conditions, stb. Source: researchgate.net

(vo)sc= volume of oil is measured under standard conditions, stb. K w = watson characterization factor, °r 1/3: = oil formation volume factor, rm 3 /sm 3. That is, (2.6) b o = v r e s v s t , K ro = relative permeability to oil = 16 b g = gas formation volume factor = 22 b o = oil formation volume factor = 18. Source: e-education.psu.edu

B t = total fvf = oil formation volume factor, rm 3 /sm 3. “ formation volume factor of oil” is defined as the volume occupied in the reservoir at the prevailing pressure and temperature by volume of oil in stock tank, plus its dissolved gas; Bo = oil formation volume factor, bbl/stb, rs = solution gor, scf/stb, [20,1425]. Dindoruk and christman correlation for oil formation volume factor, p = pb, [bbl/stb] Source: slideshare.net

B o is the oil phase formation volume factor at p r and t r, bbl/stb; Volume occupied by initial oil in place = n boi where n = oil initially in place, stb boi = oil formation volume factor at initial reservoir pressure pi, bbl/stb. B o is the oil phase formation volume factor at p r and t r, bbl/stb; To compute for the total fvf, four essential parameters are needed and these parameters are oil fvf (b o), gas fvf (b g), initial gas solubility (r si) and current gas solubility (r s). Oil compressibility • volume changes of oil above the bubble point are very significant in recovering undersaturated oil. Source: topdogengineer.com

Each data set contains reservoir temperature, oil gravity, total solution gas oil ratio, average gas gravity, and oil formation volume factor. Standing initially produced a graphical correlation for estimating the oil formation volume factor, and later expressed the graph by the following correlation: Total formation volume factor, bt bt bo bg rsb rs above pb, bt = bo 13. The viscosity of a crude oil is also impacted by the amount of gas in solution. M g = gas molecular weight, m, lbm/lbm mol m go = gas/oil mixture molecular weight, m, lbm/lbm mol m o = Source: pt.slideshare.net

Since most measurements of oil and gas production are made at the surface, and since the fluid flow takes place in the formation, volume factors are needed to convert measured surface volumes to. B o is the oil phase formation volume factor at p r and t r, bbl/stb; Volume occupied by initial oil in place = n boi where n = oil initially in place, stb boi = oil formation volume factor at initial reservoir pressure pi, bbl/stb. That in this work a universal ann model for oil fvf is sought for while that of is for different api classes. That is, (2.6) b o = v r e s v s t , Source: slideshare.net

It has since been shown that f is independent of r w only for a certain class of petrophysically simple. • oil formation volume factor reflects these changes • more fundamentally in the coefficient of compressibility of the oil. [formation evaluation] the ratio of the resistivity of a rock filled with water (r o) to the resistivity of that water (r w).g.e. = oil formation volume factor, rm 3 /sm 3. Since most measurements of oil and gas production are made at the surface, and since the fluid flow takes place in the formation, volume factors are needed to convert measured surface volumes to. Source: slideshare.net

The formation volume factor of an oil or condensate (b o) relates the volume of 1 lbmol of liquid at reservoir conditions to the volume of that liquid once it has gone through the surface separation facility. Note that here porosity and saturation are estimated (using different sources of information such as well logging, well tests, and seismic data) and have their own uncertainties. This correlation was made from the differential liberation curves of 159 analyses of saturated eastern venezuelan crudes. B t = total fvf K ro = relative permeability to oil = 16 b g = gas formation volume factor = 22 b o = oil formation volume factor = 18. Source: slideshare.net

Oil compressibility • volume changes of oil above the bubble point are very significant in recovering undersaturated oil. The formation volume factor of an oil or condensate (b o) relates the volume of 1 lbmol of liquid at reservoir conditions to the volume of that liquid once it has gone through the surface separation facility. It has since been shown that f is independent of r w only for a certain class of petrophysically simple. K w = watson characterization factor, °r 1/3: Where bo= oil formation volume factor, bbl/stb, (vo)p,t= volume of oil under pressure p and temperature t, and (vo)sc= volume of oil is at standard conditions .

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