ISO TR 27923-2022 pdf free download – Carbon dioxide capture, transportation and geological storage — Injection operations, infrastructure and monitoring.
3.33
greenhouse gasGHG
gaseous constituent of the atmosphere, natural or anthropogenic, that absorbs and emits radiationat specific wavelengths within the spectrum of infrared radiation emitted by the Earth’s surface, theatmosphere, and clouds
Note 1 to entry: The most common greenhouse gases are carbon dioxide (Coz), methane (CH,), nitrous oxide(N-0), hydrofluorocarbons (HFCs), nitrogen trifluoride (NF;〕 perfluorocarbons(PFCs) and sulphur hexafluoride(SF,).Emissions from these gases are reported under the UNFCCCand aggregated into carbon dioxide equivalents(co2-e) using factors called global warming potentials (GwPs).
[SOURCE: ISO 14064-2:2019,3.1.1]
3.34
impurities
non- CO2 substances that are part of the CO, stream that may be derived from the source materials orthe capture process, or added as a result of commingling for transportation, or released or formed as aresult of sub-surface storage and/or leakage of co2
Note 1 to entry: As a subset of impurities,contaminants are non- COz substances whose presence in the Co,stream is generally unwanted.
Note 2 to entry:As a subset of impurities, additives are substances added to the stream for the purposes ofmanaging its physical or chemical behaviour (e.g. hydrate and corrosion inhibitors),for or from interaction withequipment (e.g.lubricants), and to track its distribution in the subsurface after injection (geochemical tracers).
[SOURCE:ISO 27917:2017,3.2.12]
3.35
injectivity
rate and pressure at which fluids can be pumped into the storage unit without fracturing the storageunit
[SOURCE:1SO 27914:2017,3.19]3.36
Joule-Thomson effect
thermodynamic process that occurs when a fluid expands from high pressure to low pressure atconstant enthalpy such as across a valve
Note 1 to entry: Under the right conditions, this can cause cooling of the fluid.3.37
leakleakage
unintended release of CO2 out of a pre-defined containment
Note 1 to entry: Containments can include both surface containers (e.g. compressors, pipelines, trucks, ships,trains) and subsurface containments (e.g.storage complex).
[SOURCE:ISO 27917:2017,3.2.14]
3.38
leakage pathway
geological or artificial conduit for leakage of CO2 out of the storage complex or EOR complex[SOURCE:ISO 27916:2019,3.13, modified to add “storage complex or”]
3.39
likelihood
chance of something happening, expressed qualitatively or quantitatively and described using generalterms or mathematically,e.g. by specifying a probability or frequency of occurrence over a given period[SOURCE:ISO 27914:2017,3.22]
3.40
liner
casing (3.16) string that does not extend to the surface[SOURCE: ISO 27916:2019,3.23]
3.41
loss
emissions, leakage,intended releases, and transfers of the CO, stream to outside of the CCs projectdefined boundary
Note 1 to entry: The terms “emissions” ,”leakage” and “losses” are all used in this document to refer to CO, thatwould be deducted from quantities captured,transported or stored, but the terms have distinct meanings.The term “emissions”refers to CO,entering the atmosphere.The term “leakage” refers to COz emitted but alsoincludes CO, that escapes containment without entering the atmosphere, such as CO, that escapes a geologicalstorage complex without moving into the atmosphere. The term “loss” is even broader and would include, inaddition to emissions and leakage, CO, that is transferred out of a CCS project for some other use, which might ormight not result in emission to the atmosphere.
Note 2to entry:The term “loss” as used in this document is to be distinguished from the term “loss” as sometimesused in conjunction with COz-EOR operations to mean injected CO, that is not returned to the surface forrecycling, i.e. is “lost” to the geological formation, necessitating purchase of more CO, for injection.
[SOURCE: ISO 27916:2019,3.14]
3.42
make-up
purchased co,
co2 newly received from offsite3.43
management of change
procedure used when making a change to the process equipment or operating procedures to detailchanges made and to document steps taken to inform and train operating personnel and relevantstakeholders on process changes
[SOURCE:ISO 27914:2017,3.24].ISO TR 27923 pdf download.