DFIT: Doubles for Initial Test…

Mini-frac’ or Diagnostic Fracture Injection Tests (DFIT) help double your testing efficiency if subsurface pressures are recorded. First, a successful DFIT helps estimate hydraulic fracture closure pressure and reservoir flow properties – valuable information for stimulation design. Second, the resulting pressure fall-off can be analyzed to provide the ERCB with Initial Pressure Oil requirements. As operational logistics allow, the longer the shut-in the better, but micro-permeability systems will probably never reveal pseudo-radial flow...

read more

Welcome to Welltest Specialists’ Blog!

Finally – a blog on Welltesting! It’s taken a while to get this together. Mostly because I’ve been too busy and needed someone to help get the new WordPress based web site designed and loaded. Now that it’s up I should be able to manage… And blog! Now, let’s see, what about topical topics? Mini-frac’ (DFIT) tests and G-function analyses. Formation leak-off tests and PITAnalysis for Initial Pressure Oil requirements. ERCB 2 kPa Rule and how it doesn’t apply if conducting analysis. Perforation...

read more