Demystifying the G-function
![Derivative of pressure with respect to the G-function](https://www.resfrac.com/wp-content/uploads/2019/07/da1386_24bf0179d2f147f0856aac8ee54b9c9cmv2.png)
Diagnostic fracture injection tests (DFITs) are commonly interpreted by plotting pressure versus a function of time called the G-function. The G-function seems rather arcane and is often misunderstood. However, it has […]
How to plot a DFIT
![Diagnostic fracture injection test in a Cartesian plot.](https://www.resfrac.com/wp-content/uploads/2019/07/da1386_4ae1aa516de34858b52e96ecf9d1462fmv2.png)
Aside from the diversity of terminology, the diversity of plotting techniques is the aspect of DFIT analysis that most often causes confusion. Why don’t we just make a Cartesian plot of pressure […]