Well Testing

Alberta Well Testing Services

AMG Energy Corp

Maintaining effective, efficient, and profitable oil and gas operational infrastructure requires frequent in-depth analysis through production testing. With over 30 years in the industry, you can entrust your wells to our experienced team. Whether you need production testing done at the drilling stage, pre-production, during production, or well abandonment stage AMG Energy has all the necessary equipment and knowledge to complete any operation in your well. This is a vital component of exploration and operational viability, so production testing must be handled by the right team so that you know your wells are functioning as expected.

AMG Energy Corp. offers oil and gas well production testing with bases out of Lacombe and High Level Alberta.

Our 18-24 m3 200 PSI (1480 kPa) ABSA certified skid mounted tanks are specifically set up for sour service abandonment or work over projects like:

  • Service rig assist
  • Flaring H2S
  • Volume circulating
  • Coil tubing clean up
  • Hot oiler returns
  • Pipeline flaring
  • Pressure monitoring

All test packages come equipped with certified 2-inch 5000psi flowline and manifold, 4- inch flare line, 2- inch shipping line, 3-inch transfer line, 60 foot 6-inch portable flare stacks, ignition system, deadweight pressure gauges, and gas metering.

We suite to our customers’ needs with trained and competent crew, emergency shut down devices, 10k flow line, extra pipe, or any other testing materials required.

400-BBL sour service tanks are also available for rent separately or as part of our test package.

Combined with our Cement Pumping and E-line divisions we can supply people, equipment, and value to clients large and small.

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Well Testing Alberta
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Well Logging Analysis

Well logs provide insight into the formations and conditions in the subsurface, aimed primarily at detection and evaluation of possibly productive horizons.

  • Types of logs
  • Production logging
  • Log interpretation
  • Advanced acoustic data analysis
  • Well log interpretation
  • Nuclear log interpretation Log analysis
  • Nuclear logging (cased hole log analysis)
  • Gamma ray logs
  • Spectral gamma ray logs
  • Density logging
  • Neutron logs
  • Neutron porosity logs Pulsed-neutron-lifetime (PNL) logs
  • Perforating equipment

Engineers may choose from several well logging techniques to evaluate the quality of the cement behind casing. Temperature logs help locate the top of the cement column in the annulus. Cement hydration is an exothermic process that raises the temperature of the surrounding environment. Data from acoustic and ultrasonic logging tools help engineers analyze the cement/casing and cement/formation interfaces. These tools provide information about the quality of the cement sheath and how well the cement adheres, or bonds, to the casing and to the formation.

The cement bond log presents the reflected amplitude of an acoustic signal transmitted by a logging tool inside the casing. The cement-casing bond integrity is directly proportional to the attenuation of the reflected signal. Another acoustic log presents the waveforms of the reflected signals detected by the logging tool receiver and provides qualitative insights concerning the casing, the cement sheath and the formation. Ultrasonic logging tools transmit a short ultrasonic pulse, causing the casing to resonate. The tool measures the resonant echoes; when solid cement is behind the casing, the echo amplitudes are attenuated. When there is fluid behind the casing, the echoes have high amplitudes.

When logging operations indicate that the cement job is defective, either in the form of poor cement bonding or communication between zones, a remedial cementing technique known as squeeze cementing may be performed to establish zonal isolation. A cementing crew perforates the casing at the defective interval and forces, or squeezes, cement slurry through the perforations and into the annulus to fill the voids. In addition, squeeze cementing may be an effective technique for repairing casing leaks caused by a corroded or split casing.

Engineers fill the casing interior with cement at various depths, thereby preventing interzonal communication and fluid migration into underground freshwater sources. The ultimate objective is to restore the natural integrity of the formations that were disrupted by drilling.

Well Abandonment

To seal off selected intervals of a dry hole or a depleted well, operators can place a cement plug at the required depth to help prevent zonal communication and migration of any fluids that might infiltrate underground freshwater sources.

The process (and associated costs) of returning part or all of a project to a safe and environmentally compliant condition when operations cease. Examples include, but are not limited to, the removal of surface facilities, wellbore plugging procedures, and environmental remediation. In some instances, there may be salvage value associated with the equipment removed from the project.

The permanent plugging of a dry hole or of a well that no longer produces petroleum or is no longer capable of producing petroleum profitably. Several steps are involved in the abandonment of a well: permission for abandonment and procedural requirements are secured from official agencies; the casing is removed and salvaged if possible; and one or more cement plugs and/or mud are placed in the borehole to prevent migration of fluids between the different formations penetrated by the borehole

When a well has reached the end of its productive life, operators usually abandon the well by performing plug cementing.

The ultimate goals of these cementing technologies are to withstand the rigors of well operations and other disruptions that may occur over time and maintain zonal isolation indefinitely.

Surface casing vent flow(SCVF)/Gas Migration

A surface casing vent flow (SCVF) is a condition where fluid or gas is flowing from the surface casing vent assembly. This term is typically used in conjunction with land wells, and tests for surface casing vent flows are defined in regulations in Alberta Canada. 

SCVF is related to annular pressure build up (ABP) and annular casing pressure (ACP). These terms are also related to well integrity. A well that has a leak, or a well integrity problem may exhibit signs of ACP, ABP, or SCVF.

If the annulus is closed and gas or fluid is building up in that annulus then there may be a pressure increase which can be referred to as ABP or ACP.

In jurisdictions where the wells are operated with a surface casing vent in the open position, then fluid or gas entering the annulus can escape through the surface casing vent resulting in a surface casing vent flow (SCVF). If there is a flow and the surface casing vent is shut, then it is likely that pressure will build up resulting in ACP/ABP. If this pressure is abnormal, then the well should be managed through methods described in the well integrity section.

Methods for testing for SCVF are detailed in AER directive 20 

A SCVF test may also be referred to as a “Bubble Test” where one end of a hose is connected to the surface casing vent and the other end is submerged under 1″ (2.5cm) of water. If 2 bubbles appear in 10 minutes, a SCVF is present. Note that the pressure equivalent of 1″ of water is 0.036 psi.