Serving oil and gas companies in Red Deer, Rocky Mountain House, Drayton Valley and throughout all of Alberta, our skilled professionals are available 24/7 to provide a multitude of services. From a variety of bottom-hole pressure surveys to tubing and sleeve work to various services for fishing operations, we are equipped to handle it all in a safe and accurate manner.
Give us a call today for our quality services.
Static Gradients are run to determine fluid level, fluid/gas gradient and bottom-hole pressure. Board requirements for determining Static Gradient procedures may be found on the 2 kPa Rule.
Flowing Gradients are run to determine bottom-hole flowing pressures. They may also be run in gas lift installations to determine proper function of gas lift valves.
Flow and Build-Up Tests
We are able to install electronic memory recorders down-hole. Recorders are set on a collar stop or no-go device. Recorders measure bottom-hole pressure and temperature in conjunction with production testing. A Static Gradient is typically run immediately prior to pulling extended recorders.
Reservoir Data Processing
We offer AEUB .pas file generation, validation and submission upon customer request. AOF deliverability and well test analysis also available on request. Data processing by firstname.lastname@example.org.
Performance Wireline utilizes VECTOR electronic memory recorders. Recorder specifications may be found at the E.S. Kyle website.
2 kPa Rule
Alberta’s 2 kPa Rule for shut-in durations <14 days allows for certain Initial and Annual tests to be submitted without analysis. Note the Board’s computer check has built-in leniency and will accept pressure changes <±2.5 kPa/hour. Static gradient files are checked over the last 2.0 hours. Extended subsurface, transient gauge data files are checked over the final 6.0 hours.
Gradient (GRD.pas) Files
Static gradient survey data is submitted in the GRD.pas format. Gradient recorders must be on bottom at least 2.0 hours (even 30 seconds shy will be rejected, so 125 minutes is suggested as a confidence measure).
Check the File on Site Consultants should check all gradients for <±2.5 kPa/hour compliance on site. If a file does not pass, the well should be left shut in and a solution be determined: install recorders down-hole or conduct a static gradient on a future date.
Files Extended Wireline tests are submitted in the TRG.pas (transient gauge) format. If the intent is to simply pass the 2 kPa rule then flow & buildup is not necessary. Gauges need to be in/on the well for at least 6.0 hours (a bit more for confidence). If <±2.5 kPa/h is not achieved then pressure transient analysis will be required. This can be accomplished via conventional flow & buildup techniques or, possibly, via the perforation inflow test analysis method. Shut-in >14 Days A conventional static gradient survey with a stop of 10—15 minutes on bottom is acceptable. Oil Well Initial Pressures Subsurface pressures are preferred to satisfy Initial Pressure Oil regulations. Gas Well Initial Pressures Surface AWS surveys will be rejected if there is a fluid level above the topmost perforation. Via application, the Board may accept these pressures if there is sufficient well control (i.e. gradients). Non-Compliance With good well control (i.e. CBM 1/8 DSU) left shut-in, and a solution determined: install recorders down-hole, conduct a second gradient at a future date with a 10–15 minute on-bottom stop, is acceptable. Initial pressure requirements might be waived. Otherwise you may have to shut-in your well for buildup.
Bottom-Hole Pressure Surveys
Tubing Plugs/Sleeve work
Performance Wireline has a wide inventory of:
Genuine Halliburton X® and R® line tubing plugs are available upon request.
Tubing plugs may be required for the following reasons:
Other services we offer include, but are not limited to: