ERCB–D40, section 4.5.7, states that “…the minimum number of pressure surveys should equal about 25 % of a pool’s producing well count, based on quarter section spacing for oil pools. This translates to one survey per productive section. For gas
The ERCB has published the 2013 list of Annual Pressure Requirements. Don’t forget that surface data and acoustic well sounder (AWS) surveys are acceptable for compliance. Since we have a whole year it is a good idea to coordinate testing
Perforation Inflow Diagnostic (PID) tests satisfy ERCB Initial Pressure requirements. These simplified tests, now in common usage, provide an economical alternative to traditional methods. Basically the well is perforated under-balanced, and the subsequent closed chamber pressure build-up is monitored with
Perforation, fracture fall-off, and formation leak-off tests satisfy ERCB Initial Pressure requirements. These simplified tests, now in common usage, provide an economical alternative to traditional methods. There are several different scenarios, depending on your completion operation logistics. One method is
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
What’s not specifically clear in G40 is that Pressure Transient Analysis (PTA) is acceptable for estimating Initial Pressure Oil and Initial Pressure Gas conditions.
Misconception #1: all tests have to pass the 2 kPa Rule. Not
We are coming out the other side of closing our office and moving home. Most technical issues have been resolved – but the server is still for sale (cheap!). Now that we have time to breath I can start uploading
The second sample eREPORT I’d like to point out is PTA2 Theoretical 4pt AOF – Pressure Transient Analysis Level 2. Our Level 2 eREPORT is simplified in terms of write-up: only a summary of analytical results and conclusions. Level 2
We now have a variety of sample eREPORTS available for perusal. The first one I’d like to draw your attention to is titled PTA1 Comprehensive: Pressure Transient Analysis level 1 comprehensive. This is the traditional, legacy style, turnkey eREPORT for