## How to Calculate and Solve for Vasquez-Beggs Gas Solubility in a Fluid | The Calculator Encyclopedia The image above represents the Vasquez-Beggs Gas Solubility.

To compute for the Vasquez-Beggs gas solubility, five essential parameters are needed and these parameters are API Gravity (°API), Temperature (°Rankine) (T), Gas Gravity at Reference Separator Pressure (γgs), Gas Gravity at Actual Separator Psep and Tsep g) and Gas Solubility Parameter (C1, C2, C3).

The formula for calculating Vasquez-Beggs gas solubility:

Rs = C1 γgs γgC2 exp[C3(°API / T)]

Where:

Rs = Vasquez-Beggs Gas Solubitity
°API = API Gravity
T = Temperature (°Rankine)
γgs = Gas Gravity at Reference Separator Pressure
γg = Gas Gravity at Actual Separator Psep and Tsep
C1, C2, C3 = Gas Solubility Parameter

Let’s solve an example;
Find the Vasquez-Beggs gas solubility when the API Gravity is 24, Temperature is 180, gas gravity at reference separator pressure is 60, gas gravity at actual separator is 56, gas solubility parameter is 72, 66 and 45.

This implies that;

°API = API Gravity = 24
T = Temperature (°Rankine) = 180
γgs = Gas Gravity at Reference Separator Pressure = 60
γg = Gas Gravity at Actual Separator Psep and Tsep = 56
C1, C2, C3 = Gas Solubility Parameter = 72, 66, 45

Rs = C1 γgs γgC2 exp[C3(°API/ T)]
Rs = 72 x 60 x 5666 exp[45(24/ 180)]
Rs = 72 x 60 x 5666 exp[45(0.133)]
Rs = 72 x 60 x 5666 exp
Rs = 72 x 60 x 2.401e+115 exp
Rs = 72 x 60 x 2.401e+115 x 403.428
Rs = 6.974e+119

Therefore, the Vasquez-Beggs gas solubility is 6.974e+119.

## How to Calculate and Solve for Standing Gas Solubility Parameter | Nickzom Calculator The image above represents the standing gas solubility parameter.

To compute for the standing gas solubility parameter, two essential parameters are needed and these parameters are API Gravity (°API) and Temperature (°Rankine) (T).

The formula for calculating the standing gas solubility parameter:

x = 0.0125°API – 0.00091(T – 460)

Where:

x = Standing Gas Solubility Parameter
°API = API Gravity
T = Temperature (°Rankine)

Let’s solve an example;
Given that the API Gravity is 22 and the temperature is 120.
Find the standing gas solubility parameter?

This implies that;

°API = API Gravity = 22
T = Temperature (°Rankine) = 120

x = 0.0125°API – 0.00091(T – 460)
x = 0.0125(22) – 0.00091(120 – 460)
x = 0.275 – 0.00091(-340)
x = 0.275 – -0.3094
x = 0.5844

Therefore, the standing gas solubility parameter is 0.5844.

## How to Calculate and Solve for Standing Gas Solubility of a Fluid | The Calculator Encyclopedia The image above represents standing gas solubility.

To compute for the standing gas solubility, three essential parameters are needed and these are Solution Gas Specific Density (γg), System Pressure (P) and Standing Gas Solubility Parameter (x).

The formula for calculating the standing gas solubility:

Standing Rs = γg[(P / 18.2 + 1.4) 10x ]1.2048

Where:

Standing Rs = Standing Gas Solubility
γg = Solution Gas Specific Density
P = System Pressure
x = Standing Gas Solubility Parameter

Let’s solve an example;
Find the standing gas solubility when the solution gas specific density is 12, the system pressure is 40 and the standing gas solubility parameter is 20.

This implies that;

γg = Solution Gas Specific Density = 12
P = System Pressure = 40
x = Standing Gas Solubility Parameter = 20

Standing Rs = γg[(P / 18.2 + 1.4) 10x ]1.2048
Standing Rs = 12[(40 / 18.2 + 1.4) 1020 ]1.2048
Standing Rs = 12[(3.597802197802198) 1020]1.2048
Standing Rs = 12[(3.597802197802198) (100000000000000000000)]1.2048
Standing Rs = 121.2048
Standing Rs = 12[5.833292021408776e+24]
Standing Rs = 6.999950425690531e+25

Therefore, the standing gas solubility is 6.999950425690531e+25.

## How to Calculate and Solve for Gas Formation Volume Factor (FVF) | The Calculator Encyclopedia The image above represents the gas FVF.

To compute for the gas FVF, three essential parameters are needed and these parameters are Z-Factor (Z), Temperature (T) and Pressure (P).

The formula for calculating the gas FVF:

Bg = 0.00504[ZT / P]

Where;

Bg = Gas FVF
Z = Z-Factor
T = (°R) Temperature
P = Pressure

Let’s solve an example;
Find the Gas FVF when the Z-Factor is 12, temperature is 30 and the pressure is 120.

This implies that;

Z = Z-Factor = 12
T = (°R) Temperature = 30
P = Pressure = 120

Bg = 0.00504[ZT / P]
Bg = 0.00504[12 x 30 / 120]
Bg = 0.00504[360 / 120]
Bg = 0.00504
Bg = 0.01512

Therefore, the gas FVF is 0.01512 bbl / scf.

Calculating for the Z-Factor when the Gas FVF, Temperature and Pressure is Given.

Z = Bg.P / 0.00504T

Where;

Z = Z-Factor
Bg = Gas FVF
T = (°R) Temperature
P = Pressure

Let’s solve an example;
Find the Z-Factor when the Gas FVF is 22, temperature is 16 and the pressure is 80.

This implies that;

Bg = Gas FVF = 22
T = (°R) Temperature = 16
P = Pressure = 80

Z = Bg.P / 0.00504T
Z = 22 x 80 / 0.00504 x 16
Z = 1760 / 0.08064
Z = 21825.39

Therefore, the Z-Factor is 21825.39.

Calculating for the Temperature when the Gas FVF, Z-Factor and the Pressure is Given.

T = Bg.P / 0.00504Z

Where;

T = (°R) Temperature
Z = Z-Factor
Bg = Gas FVF
P = Pressure

Let’s solve an example;
Find the Temperature when the Gas FVF is 44, Z-Factor is 29 and the pressure is 70.

This implies that;

Z = Z-Factor = 29
Bg = Gas FVF = 44
P = Pressure = 70

T = Bg.P / 0.00504Z
T = 44 x 70 / 0.00504 x 29
T = 3080 / 0.14616
T = 21072.79

Therefore, the temperature is 21072.79.

## How to Calculate and Solve for Crude Oil Gravity, Oil Density and Water Density | The Calculator Encyclopedia The image above represents crude oil gravity.

To compute for the crude oil gravity, two essential parameters are needed and these parameters are oil density (ρo) and water density (ρw).

The formula for calculating the crude oil gravity:

γo = ρo / ρw

Where;

γo = Crude Oil Gravity
ρo = Oil Density
ρw = Water Density

Let’s solve an example;
Find the crude oil gravity when the oil density is 28 and the water density is 46.

This implies that;

ρo = Oil Density = 28
ρw = Water Density = 46

γo = ρo / ρw
γo = 28 / 46
γo = 0.608

Therefore, the crude oil density is 0.608.

Calculating the Oil Density when the Crude Oil Gravity and the Water Density is Given.

ρo = γo x ρw

Where;

ρo = Oil Density
γo = Crude Oil Gravity
ρw = Water Density

Let’s solve an example;
Find the oil density when the crude oil gravity is 30 and the water density is 16.

This implies that;

γo = Crude Oil Gravity = 30
ρw = Water Density = 16

ρo = γo x ρw
ρo = 30 x 16
ρo = 480

Therefore, the oil density is 480.