Enter the injectivity (bbl/day/psi) and the pressure difference between injection and well bottom hole flow pressure (psi) into the Injection Rate Calculator. The calculator will evaluate the Injection Rate.

## Injection Rate Formula

The following two example problems outline the steps and information needed to calculate the Injection Rate.

**IR = I * dP**

Variables:

- IR is the Injection Rate (bbl/day)
- I is the injectivity (bbl/day/psi)
- dP is the pressure difference between injection and well bottom hole flow pressure (psi)

## How to Calculate Injection Rate?

The following steps outline how to calculate the Injection Rate.

- First, determine the injectivity (bbl/day/psi).
- Next, determine the pressure difference between injection and well bottom hole flow pressure (psi).
- Next, gather the formula from above = IR = I * dP.
- Finally, calculate the Injection Rate.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

injectivity (bbl/day/psi) = 500

pressure difference between injection and well bottom hole flow pressure (psi) = 30

IR = I * dP** **= ?