2. Cumulative H2S release rate

Enter the following cumulative H2S release rate information:

Maximum cumulative H2S release rate

Enter the maximum cumulative H2S release rate. The content is validated based on the category/type of the well.

Drilling Case (m3/s)
Required

Enter the maximum drilling case cumulative H2S rate in m3/s (to 4 decimals) as determined by your H2S release rate assessment.

Completion/Servicing (m3/s)
Required

Enter the completion/servicing cumulative H2S rate in m3/s (to 4 decimals) as determined by your H2S release rate assessment for the completion/servicing formation(s).

Suspended/Producing Case (m3/s)
Required

Enter the maximum suspended/producing H2S rate in m3/s (to 4 decimals) as determined by your cumulative H2S release rate assessment for the producing formation(s).

Intermediate casing to be set
Required

Select Yes if intermediate casing is to be set in the well.

If you select No and the intermediate casing is not set, the maximum cumulative H2S release rate should reflect the total potential flow from the well.

Maximum H2S concentration encountered in well
Required

Enter the maximum potential H2S concentration that you anticipate encountering in the well and select the unit of measurement - ppm, mol/kmol, or percentage (see Conversions). This value must be greater than zero for sour wells.

Anticipated suspended/producing level as per ID97-06
Required

Select one of the following:

Level 1	Any well with a maximum potential H2S release rate of 0.01 m3/s or greater, and less than 0.3 m3/s. All wells remain subject to section 2.110 of the OGCR which requires a 0.1 km separation distance between each well and any surface improvement. The AER may specify some other separation distance for a Level 1 sour well should the circumstances warrant such action.
Level 2	Any well with a maximum potential H2S release rate of 0.3 m3/s or greater and less than 2.0 m3/s. A Level 2 sour well shall be located to provide 0.1 km separation distance between it and any dwelling, and 0.5 km separation distance between it and any public facility or corporate boundary of an urban centre.
Level 3	Any well with a maximum potential H2S release rate of 2.0 m3/s or greater and less than 6.0 m3/s. A Level 3 sour well shall be located to provide 0.1 km separation distance between it and any dwelling, 0.5 km separation distance between it and any unrestricted country development, and 1.5 km separation distance between it and any public facility or corporate boundary of an urban centre.
Level 4	Any well with a maximum potential H2S release rate of 6.0 m3/s or greater. A Level 4 sour well shall be so located that, as a minimum, it meets the requirements set out for a Level 3 sour well. However, the AER may require greater separation distances or set out other such requirements, as deemed necessary.
N/A	The producing horizon will not produce gas containing H2S.

For Category E wells, you must attach:

Required Attachment	Description	Type
H2S Information	Documentation supporting the H2S release rate and assessment including any required maps. Applicant can also submit documentation from the AER Geology and Reserves group indicating that the H2S release rate is acceptable or that the documentation was submitted manually.	.doc, .pdf, .xls, .bmp, .jpg, .ppt