The image above represents the total compressibility. To calculate the total compressibility, seven essential parameters are needed and these parameters are Water compressibility (Cw), Oil compressibility (Co), Gas compressibility (Cg), Rock compressibility (Cr), water saturation (Sw), Oil saturation (So) and Gas saturation (Sg).
The formula for calculating the total compressibility:
CT = CoSo + CgSg + CwSw + Cr
Where;
CTÂ = Total Compressibility
Cw = Water Compressibility
And Co = Oil Compressibility
Cg = Gas Compressibility
Cr = Rock Compressibility
Also, Sw = Water Saturation
So = Oil Saturation
Sg = Gas Saturation
Let’s solve an example;
With a given value of 13 as water compressibility, 17 as oil compressibility, 19 as gas compressibility, 25 as rock compressibility, 24 as water saturation, 29 as oil saturation and 21 as gas saturation.
Find the total compressibility?
This implies that;
Cw = Water Compressibility = 13
Co = Oil Compressibility = 17
And Cg = Gas Compressibility = 19
Cr = Rock Compressibility = 25
Sw = Water Saturation = 24
Also, So = Oil Saturation = 29
Sg = Gas Saturation = 21
CT = CoSo + CgSg + CwSw + Cr
CT = (17 x 29) + (19 x 21) + (13 x 24) + 25
Then, CT = 493 + 399 + 312 + 25
CT = 1229
Therefore, the total compressibility is 1229 psi.
Read more:Â How to Calculate and Solve for Total Oil Pore Volume of Reservoir Fluid Flow
How to Calculate Total Compressibility of a Reservoir Fluid Flow Using The Calculator Encyclopedia
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the total compressibility.
To get the answer and workings of the total compressibility using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
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You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 1,500 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Petroleum under Engineering
Now, Click on Reservoir Fluid Flow under Petroleum
Now, Click on Total Compressibility under Reservoir Fluid Flow
The screenshot below displays the page or activity to enter your value, to get the answer for the total compressibility according to the respective parameter which are the Water compressibility (Cw), Oil compressibility (Co), Gas compressibility (Cg), Rock compressibility (Cr), water saturation (Sw), Oil saturation (So) and Gas saturation (Sg).
Now, enter the value appropriately and accordingly for the parameter as required by the Water compressibility (Cw) is 13, Oil compressibility (Co) is 17, Gas compressibility (Cg) is 19, Rock compressibility (Cr) is 25, water saturation (Sw) is 24, Oil saturation (So) is 29 and Gas saturation (Sg) is 21.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the total compressibility and presents the formula, workings and steps too.
