Calculating CO 2 geologic sequestration.

You must calculate CO 2 sequestered using the following quantification principles from Clause 8.2 of CSA/ANSI ISO 27916:19 (incorporated by reference, see § 98.7). (a) You must calculate the mass of CO 2 stored in association with CO 2 -EOR ( m stored ) in the reporting year by subtracting the mass of CO 2 loss from operations and the mass of CO 2 loss from the EOR complex from the total mass of CO 2 input (as specified in equation 1 to this paragraph (a)). Equation 1 to paragraph (a) m stored = m input − m loss operations − m loss EOR complex Where: m stored = The annual quantity of associated storage in metric tons of CO 2 mass. m input = The total mass of CO 2 m received by the EOR project plus m native (see Clause 8.3 of CSA/ANSI ISO 27916:19 (incorporated by reference, see § 98.7) and paragraph (c) of this section), metric tons. Native CO 2 produced and captured in the CO 2 -EOR project ( m native ) can be quantified and included in m input . m loss operations = The total mass of CO 2 loss from project operations (see Clauses 8.4.1 through 8.4.5 of CSA/ANSI ISO 27916:19 (incorporated by reference, see § 98.7) and paragraph (d) of this section), metric tons. m loss EOR complex = The total mass of CO 2 loss from the EOR complex (see Clause 8.4.6 of CSA/ANSI ISO 27916:19 (incorporated by reference, see § 98.7)), metric tons. (b) The manner by which associated storage is quantified must assure completeness and preclude double counting. The annual mass of CO 2 that is recycled and reinjected into the EOR complex must not be quantified as associated storage. Loss from the CO 2 recycling facilities must be quantified. (c) You must quantify the total mass of CO 2 input ( m input ) in the reporting year according to paragraphs (g)(1) through (3) of this section. (1) You must include the total mass of CO 2 received at the custody transfer meter by the CO 2 -EOR project ( m received ). (2) The CO 2 stream received (including CO 2 transferred from another CO 2 -EOR project) must be metered. (i) The native CO 2 recovered and included as m native must be documented. (ii) CO 2 delivered to multiple CO 2 -EOR projects must be allocated among those CO 2 -EOR projects. (3) The sum of the quantities of allocated CO 2 must not exceed the total quantities of CO 2 received. (d) You must calculate the total mass of CO 2 from project operations ( m loss operations ) in the reporting year as specified in equation 2 to this paragraph (d). Equation 2 to paragraph (d) Where: m loss leakage facilities = Loss of CO 2 due to leakage from production, handling, and recycling CO 2 -EOR facilities (infrastructure including wellheads), metric tons. m loss vent/flare = Loss of CO 2 from venting/flaring from production operations, metric tons. m loss entrained = Loss of CO 2 due to entrainment within produced gas/oil/water when this CO 2 is not separated and reinjected, metric tons. m loss transfer =Loss of CO 2 due to any transfer of CO 2 outside the CO 2 -EOR project, metric tons. You must quantify any CO 2 that is subsequently produced from the EOR complex and transferred offsite.