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 with a plant turnaround, a pump change, or a routine maintenance shut-in. Testing water or gas injection wells is another good tactic for sustaining oil revenues.
What’s not specifically clear in G40 is that Pressure Transient Analysis (PTA) is acceptable for estimating Annual Pressure Oil and Annual Pressure Gas conditions. The build-up does not have to pass the Board’s 2 kPa Rule, nor does the well have to be shut-in >14 days. Typically wells are shut-in 48 – 196 h for build-up or fall-off, depending on matrix permeability of course, but a minimum 8 h of data is required for a TRG.pas file.
Send us an e-mail if you aren’t sure about your testing requirements or want to discuss an annual testing strategy.