Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:1:p1
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 1 (pt 1/2)
Character Range: 453667–456344

1     Non‑routine activities—production related non‑routine emissions  Section 5.7.1

Subdivision 3.3.9A.8—Natural gas production—emissions that are vented—well workovers

3.85O  Available methods
 (1) Subject to section 1.18, for estimating emissions relating to well workovers (emissions that are vented) released during a year from the operation of a facility that is constituted by natural gas production the methods as set out in this section must be used.
 (2) One of the following methods must be used for estimating fugitive emissions that result from deliberate releases from process vents, system upsets and accidents:
 (a) method 1 under section 3.85P;
 (b) method 4 under Section 3.85Q.
Note: There is no method 2 or 3 for subsection (2).
 (3) However, for incidental emissions another method may be used that is consistent with the principles in section 1.13.

3.85P  Method 1—vented emissions from well workovers
 (1)  Subject to subsection (3), Method 1 is:

  Eij  = Σk   (Qik   ×  EFijk  × Sij / SDij)

where:
Eij is the fugitive (vented) emissions of gas type (j), being methane or carbon dioxide, from the natural gas production during the year measured in CO2‑e tonnes.
Σk is the total emissions of gas type (j), being methane or carbon dioxide, measured in tonnes of CO2‑e and estimated by summing up the emissions released from all of the equipment of type (k) specified in column 2 of the table in subsection (2), if the equipment is used in the natural gas production.
Qik is the total of the number of well workover events for equipment of type (k) specified in column 2 of the table in subsection (2) during the year, if the equipment is used in the natural gas production.
Note: Consistent with subsection 3.41(2), a well workover event should be reported for a single reporting year and not separately in two consecutive years.
EFijk is the emission factor for gas type (j), being methane or carbon dioxide, measured in tonnes of CO2‑e per well workover event using equipment type (k) specified in column 2 of the table in subsection (2) during the year, if the equipment is used in the natural gas production.
Sij  is the measured share of gas type (j), being methane or carbon dioxide, in the unprocessed gas (i), by volume, measured in accordance with Division 2.3.3 and the principles in section 1.13.
SDij is the default share of gas type (j) in the unprocessed gas (i), for methane SD is 0.825 and for carbon dioxide SD is 0.0345.
 (2) For EFijk mentioned in subsection (1), column 3 of an item in the following table specifies the emission factor for methane for an equipment of type (k) specified in column 2 of that item and column 4 of an