本文件提供了证明所讨论的场地足以提供安全、长期的CO2遏制的要求，证明CO2驱油的操作方式确保了EOR综合体中CO2的遏制，以及量化相关储存的要求。 本文件适用于石油和其他碳氢化合物（包括天然气）强化回收作业（CO2-EOR）中注入的CO2，寻求对与CO2-EOR项目相关的长期安全储存的CO2进行量化。认识到一些二氧化碳-提高采收率项目将非人为二氧化碳与人为二氧化碳结合使用，该文件还显示了如何利用分配比率进行可选计算，以量化由人为二氧化碳组成的相关储存部分（见附件A）。本文件不适用于注入预计或不会产生碳氢化合物的储层中的CO2的量化。 ISO 27914涵盖了二氧化碳在不含碳氢化合物的地质构造中的储存，即使位于碳氢化合物生产储层的上方或下方。如果在以前生产碳氢化合物但不再以付费或商业数量生产碳氢化合物的储层中储存CO2，则此类储存将遵守ISO 27914的要求。 本文件涉及: 在EOR综合体内安全、长期地控制二氧化碳； CO2通过泄漏途径从EOR综合体泄漏；和 现场二氧化碳–EOR项目油井、设备或其他设施的二氧化碳损失。 本文档不涉及以下内容:生命周期排放，包括但不限于二氧化碳捕获或运输产生的二氧化碳排放、燃烧或发电产生的现场排放以及生产的碳氢化合物燃烧产生的二氧化碳排放； 二氧化碳的地面储存； CO2在地下的缓冲和季节性储存（类似天然气储存）； )不涉及向地下注入二氧化碳的任何技术或产品；和 二氧化碳以外的任何温室气体（GHGs）的排放。 注:一些当局可能要求对CO2流中的其他GHG成分进行量化。

This document provides requirements for demonstrating that the site in question is adequate to provide safe, long-term containment of CO2, for demonstrating that the CO2 flood is operated in a way to assure containment of the CO2 in the EOR complex, and for quantifying associated storage.

This document applies to CO2 that is injected in enhanced recovery operations for oil and other hydrocarbons, including natural gas, (CO2-EOR) for which quantification of CO2 that is safely stored long-term in association with the CO2-EOR project is sought. Recognizing that some CO2-EOR projects use non-anthropogenic CO2 in combination with anthropogenic CO2, the document also shows how allocation ratios can be utilized for optional calculations to quantify the portion of associated storage comprised of anthropogenic CO2 (see Annex A).

This document does not apply to quantification of CO2 injected into reservoirs where no hydrocarbon production is anticipated or occurring.

Storage of CO2 in geologic formations that do not contain hydrocarbons is covered by ISO 27914 even if located above or below hydrocarbon producing reservoirs. If storage of CO2 is conducted in a reservoir from which hydrocarbons were previously produced but will no longer be produced in paying or commercial quantities, such storage would be subject to the requirements of ISO 27914.

This document addresses:

1. safe, long-term containment of CO2 within the EOR complex;
2. CO2 leakage from the EOR complex through leakage pathways; and
3. on-site CO2-EOR project loss of CO2 from wells, equipment, or other facilities.

This document does not address the following:

1. lifecycle emissions, including but not limited to CO2 emissions from capture or transportation of CO2, on-site emissions from combustion or power generation, and CO2 emissions resulting from the combustion of produced hydrocarbons;
2. storage of CO2 above ground;
3. buffer and seasonal storage of CO2 below ground (similar to natural gas storage);
4. )any technique or product that does not involve injection of CO2 into the subsurface; and
5. emissions of any greenhouse gases (GHGs) other than CO2.

NOTE            Some authorities can require other GHG components of the CO2 stream to be quantified.