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Combinatorial checklist Metagenome or Environmental with environmental package hydrocarbon resources-fluids_swabs

URI: mixs.vocab:HydrocarbonResources-fluidsSwabsMIMS



MIxS ID Name Multiplicity Description Pattern Info
MIXS:0001107 samp_name 1..1 A local identifier or name that for the material sample used for extracting nucleic acids, and subsequent sequencing. It can refer either to the original material collected or to any derived sub-samples. It can have any format, but we suggest that you make it concise, unique and consistent within your lab, and as informative as possible. INSDC requires every sample name from a single Submitter to be unique. Use of a globally unique identifier for the field source_mat_id is recommended in addition to sample_name. None .
MIXS:0001320 samp_taxon_id 1..1 NCBI taxon id of the sample. Maybe be a single taxon or mixed taxa sample. Use 'synthetic metagenome’ for mock community/positive controls, or 'blank sample' for negative controls. None .
MIXS:0000092 project_name 1..1 Name of the project within which the sequencing was organized None .
MIXS:0000008 experimental_factor 0..1 recommended RECOMMENDED Experimental factors are essentially the variable aspects of an experiment design which can be used to describe an experiment, or set of experiments, in an increasingly detailed manner. This field accepts ontology terms from Experimental Factor Ontology (EFO) and/or Ontology for Biomedical Investigations (OBI). For a browser of EFO (v 2.95) terms, please see; for a browser of OBI (v 2018-02-12) terms please see None .
MIXS:0000009 lat_lon 1..1 The geographical origin of the sample as defined by latitude and longitude. The values should be reported in decimal degrees and in WGS84 system None .
MIXS:0000018 depth 0..1 The vertical distance below local surface, e.g. for sediment or soil samples depth is measured from sediment or soil surface, respectively. Depth can be reported as an interval for subsurface samples. None .
MIXS:0000094 alt 0..1 Altitude is a term used to identify heights of objects such as airplanes, space shuttles, rockets, atmospheric balloons and heights of places such as atmospheric layers and clouds. It is used to measure the height of an object which is above the earth's surface. In this context, the altitude measurement is the vertical distance between the earth's surface above sea level and the sampled position in the air None .
MIXS:0000093 elev 0..1 Elevation of the sampling site is its height above a fixed reference point, most commonly the mean sea level. Elevation is mainly used when referring to points on the earth's surface, while altitude is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit. None .
MIXS:0000113 temp 1..1 Temperature of the sample at the time of sampling. None .
MIXS:0000010 geo_loc_name 1..1 The geographical origin of the sample as defined by the country or sea name followed by specific region name. Country or sea names should be chosen from the INSDC country list (, or the GAZ ontology ( None .
MIXS:0000011 collection_date 1..1 The time of sampling, either as an instance (single point in time) or interval. In case no exact time is available, the date/time can be right truncated i.e. all of these are valid times: 2008-01-23T19:23:10+00:00; 2008-01-23T19:23:10; 2008-01-23; 2008-01; 2008; Except: 2008-01; 2008 all are ISO8601 compliant None .
MIXS:0001321 neg_cont_type 0..1 recommended RECOMMENDED The substance or equipment used as a negative control in an investigation None .
MIXS:0001322 pos_cont_type 0..1 recommended RECOMMENDED The substance, mixture, product, or apparatus used to verify that a process which is part of an investigation delivers a true positive. None .
MIXS:0000012 env_broad_scale 1..1 Report the major environmental system the sample or specimen came from. The system(s) identified should have a coarse spatial grain, to provide the general environmental context of where the sampling was done (e.g. in the desert or a rainforest). We recommend using subclasses of EnvO’s biome class: EnvO documentation about how to use the field: None .
MIXS:0000013 env_local_scale 1..1 Report the entity or entities which are in the sample or specimen’s local vicinity and which you believe have significant causal influences on your sample or specimen. We recommend using EnvO terms which are of smaller spatial grain than your entry for env_broad_scale. Terms, such as anatomical sites, from other OBO Library ontologies which interoperate with EnvO (e.g. UBERON) are accepted in this field. EnvO documentation about how to use the field: None .
MIXS:0000014 env_medium 1..1 Report the environmental material(s) immediately surrounding the sample or specimen at the time of sampling. We recommend using subclasses of 'environmental material' ( EnvO documentation about how to use the field: . Terms from other OBO ontologies are permissible as long as they reference mass/volume nouns (e.g. air, water, blood) and not discrete, countable entities (e.g. a tree, a leaf, a table top). None .
MIXS:0000020 subspecf_gen_lin 0..1 Information about the genetic distinctness of the sequenced organism below the subspecies level, e.g., serovar, serotype, biotype, ecotype, or any relevant genetic typing schemes like Group I plasmid. Subspecies should not be recorded in this term, but in the NCBI taxonomy. Supply both the lineage name and the lineage rank separated by a colon, e.g., biovar:abc123. None .
MIXS:0000021 ploidy 0..1 The ploidy level of the genome (e.g. allopolyploid, haploid, diploid, triploid, tetraploid). It has implications for the downstream study of duplicated gene and regions of the genomes (and perhaps for difficulties in assembly). For terms, please select terms listed under class ploidy (PATO:001374) of Phenotypic Quality Ontology (PATO), and for a browser of PATO (v 2018-03-27) please refer to None .
MIXS:0000022 num_replicons 0..1 Reports the number of replicons in a nuclear genome of eukaryotes, in the genome of a bacterium or archaea or the number of segments in a segmented virus. Always applied to the haploid chromosome count of a eukaryote None .
MIXS:0000023 extrachrom_elements 0..1 Do plasmids exist of significant phenotypic consequence (e.g. ones that determine virulence or antibiotic resistance). Megaplasmids? Other plasmids (borrelia has 15+ plasmids) None .
MIXS:0000024 estimated_size 0..1 The estimated size of the genome prior to sequencing. Of particular importance in the sequencing of (eukaryotic) genome which could remain in draft form for a long or unspecified period. None .
MIXS:0000025 ref_biomaterial 0..1 Primary publication if isolated before genome publication; otherwise, primary genome report. None .
MIXS:0000026 source_mat_id 0..1 recommended RECOMMENDED A unique identifier assigned to a material sample (as defined by, and as opposed to a particular digital record of a material sample) used for extracting nucleic acids, and subsequent sequencing. The identifier can refer either to the original material collected or to any derived sub-samples. The INSDC qualifiers /specimen_voucher, /bio_material, or /culture_collection may or may not share the same value as the source_mat_id field. For instance, the /specimen_voucher qualifier and source_mat_id may both contain 'UAM:Herps:14' , referring to both the specimen voucher and sampled tissue with the same identifier. However, the /culture_collection qualifier may refer to a value from an initial culture (e.g. ATCC:11775) while source_mat_id would refer to an identifier from some derived culture from which the nucleic acids were extracted (e.g. xatc123 or ark:/2154/R2). None .
MIXS:0000027 pathogenicity 0..1 To what is the entity pathogenic None .
MIXS:0000028 biotic_relationship 0..1 Description of relationship(s) between the subject organism and other organism(s) it is associated with. E.g., parasite on species X; mutualist with species Y. The target organism is the subject of the relationship, and the other organism(s) is the object None .
MIXS:0000029 specific_host 0..1 Report the host's taxonomic name and/or NCBI taxonomy ID. None .
MIXS:0000030 host_spec_range 0..1 The range and diversity of host species that an organism is capable of infecting, defined by NCBI taxonomy identifier. None .
MIXS:0000031 host_disease_stat 0..1 List of diseases with which the host has been diagnosed; can include multiple diagnoses. The value of the field depends on host; for humans the terms should be chosen from the DO (Human Disease Ontology) at, non-human host diseases are free text None .
MIXS:0000032 trophic_level 0..1 Trophic levels are the feeding position in a food chain. Microbes can be a range of producers (e.g. chemolithotroph) None .
MIXS:0000033 propagation 0..1 The type of reproduction from the parent stock. Values for this field is specific to different taxa. For phage or virus: lytic/lysogenic/temperate/obligately lytic. For plasmids: incompatibility group. For eukaryotes: sexual/asexual. None .
MIXS:0000034 encoded_traits 0..1 Should include key traits like antibiotic resistance or xenobiotic degradation phenotypes for plasmids, converting genes for phage None .
MIXS:0000015 rel_to_oxygen 0..1 Is this organism an aerobe, anaerobe? Please note that aerobic and anaerobic are valid descriptors for microbial environments None .
MIXS:0000003 isol_growth_condt 0..1 Publication reference in the form of pubmed ID (pmid), digital object identifier (doi) or url for isolation and growth condition specifications of the organism/material None .
MIXS:0000002 samp_collec_device 0..1 recommended RECOMMENDED The device used to collect an environmental sample. This field accepts terms listed under environmental sampling device ( This field also accepts terms listed under specimen collection device ( None .
MIXS:0001225 samp_collec_method 0..1 recommended RECOMMENDED The method employed for collecting the sample. None .
MIXS:0000016 samp_mat_process 0..1 recommended RECOMMENDED A brief description of any processing applied to the sample during or after retrieving the sample from environment, or a link to the relevant protocol(s) performed. None .
MIXS:0000017 size_frac 0..1 Filtering pore size used in sample preparation None .
MIXS:0000001 samp_size 0..1 recommended RECOMMENDED The total amount or size (volume (ml), mass (g) or area (m2) ) of sample collected. None .
MIXS:0000111 samp_vol_we_dna_ext 0..1 Volume (ml) or mass (g) of total collected sample processed for DNA extraction. Note: total sample collected should be entered under the term Sample Size (MIXS:0000001). None .
MIXS:0000035 source_uvig 0..1 Type of dataset from which the UViG was obtained None .
MIXS:0000036 virus_enrich_appr 0..1 List of approaches used to enrich the sample for viruses, if any None .
MIXS:0000037 nucl_acid_ext 0..1 recommended RECOMMENDED A link to a literature reference, electronic resource or a standard operating procedure (SOP), that describes the material separation to recover the nucleic acid fraction from a sample None .
MIXS:0000038 nucl_acid_amp 0..1 recommended RECOMMENDED A link to a literature reference, electronic resource or a standard operating procedure (SOP), that describes the enzymatic amplification (PCR, TMA, NASBA) of specific nucleic acids None .
MIXS:0000039 lib_size 0..1 recommended RECOMMENDED Total number of clones in the library prepared for the project None .
MIXS:0000040 lib_reads_seqd 0..1 recommended RECOMMENDED Total number of clones sequenced from the library None .
MIXS:0000041 lib_layout 0..1 recommended RECOMMENDED Specify whether to expect single, paired, or other configuration of reads None .
MIXS:0000042 lib_vector 0..1 recommended RECOMMENDED Cloning vector type(s) used in construction of libraries None .
MIXS:0000043 lib_screen 0..1 recommended RECOMMENDED Specific enrichment or screening methods applied before and/or after creating libraries None .
MIXS:0000044 target_gene 0..1 Targeted gene or locus name for marker gene studies None .
MIXS:0000045 target_subfragment 0..1 Name of subfragment of a gene or locus. Important to e.g. identify special regions on marker genes like V6 on 16S rRNA None .
MIXS:0000046 pcr_primers 0..1 PCR primers that were used to amplify the sequence of the targeted gene, locus or subfragment. This field should contain all the primers used for a single PCR reaction if multiple forward or reverse primers are present in a single PCR reaction. The primer sequence should be reported in uppercase letters None .
MIXS:0000047 mid 0..1 recommended RECOMMENDED Molecular barcodes, called Multiplex Identifiers (MIDs), that are used to specifically tag unique samples in a sequencing run. Sequence should be reported in uppercase letters None .
MIXS:0000048 adapters 0..1 recommended RECOMMENDED Adapters provide priming sequences for both amplification and sequencing of the sample-library fragments. Both adapters should be reported; in uppercase letters None .
MIXS:0000049 pcr_cond 0..1 Description of reaction conditions and components of PCR in the form of 'initial denaturation:94degC_1.5min; annealing=...' None .
MIXS:0000050 seq_meth 1..1 Sequencing machine used. Where possible the term should be taken from the OBI list of DNA sequencers ( None .
MIXS:0000051 seq_quality_check 0..1 Indicate if the sequence has been called by automatic systems (none) or undergone a manual editing procedure (e.g. by inspecting the raw data or chromatograms). Applied only for sequences that are not submitted to SRA,ENA or DRA None .
MIXS:0000052 chimera_check 0..1 Tool(s) used for chimera checking, including version number and parameters, to discover and remove chimeric sequences. A chimeric sequence is comprised of two or more phylogenetically distinct parent sequences. None .
MIXS:0000053 tax_ident 0..1 The phylogenetic marker(s) used to assign an organism name to the SAG or MAG None .
MIXS:0000056 assembly_qual 0..1 recommended RECOMMENDED The assembly quality category is based on sets of criteria outlined for each assembly quality category. For MISAG/MIMAG; Finished: Single, validated, contiguous sequence per replicon without gaps or ambiguities with a consensus error rate equivalent to Q50 or better. High Quality Draft:Multiple fragments where gaps span repetitive regions. Presence of the 23S, 16S and 5S rRNA genes and at least 18 tRNAs. Medium Quality Draft:Many fragments with little to no review of assembly other than reporting of standard assembly statistics. Low Quality Draft:Many fragments with little to no review of assembly other than reporting of standard assembly statistics. Assembly statistics include, but are not limited to total assembly size, number of contigs, contig N50/L50, and maximum contig length. For MIUVIG; Finished: Single, validated, contiguous sequence per replicon without gaps or ambiguities, with extensive manual review and editing to annotate putative gene functions and transcriptional units. High-quality draft genome: One or multiple fragments, totaling ≥ 90% of the expected genome or replicon sequence or predicted complete. Genome fragment(s): One or multiple fragments, totalling < 90% of the expected genome or replicon sequence, or for which no genome size could be estimated None .
MIXS:0000057 assembly_name 0..1 recommended RECOMMENDED Name/version of the assembly provided by the submitter that is used in the genome browsers and in the community None .
MIXS:0000058 assembly_software 0..1 recommended RECOMMENDED Tool(s) used for assembly, including version number and parameters None .
MIXS:0000059 annot 0..1 recommended RECOMMENDED Tool used for annotation, or for cases where annotation was provided by a community jamboree or model organism database rather than by a specific submitter None .
MIXS:0000060 number_contig 0..1 recommended RECOMMENDED Total number of contigs in the cleaned/submitted assembly that makes up a given genome, SAG, MAG, or UViG None .
MIXS:0000061 feat_pred 0..1 Method used to predict UViGs features such as ORFs, integration site, etc. None .
MIXS:0000062 ref_db 0..1 List of database(s) used for ORF annotation, along with version number and reference to website or publication None .
MIXS:0000063 sim_search_meth 0..1 Tool used to compare ORFs with database, along with version and cutoffs used None .
MIXS:0000064 tax_class 0..1 Method used for taxonomic classification, along with reference database used, classification rank, and thresholds used to classify new genomes None .
MIXS:0000065 x_16s_recover 0..1 Can a 16S gene be recovered from the submitted SAG or MAG? None .
MIXS:0000066 x_16s_recover_software 0..1 Tools used for 16S rRNA gene extraction None .
MIXS:0000067 trnas 0..1 The total number of tRNAs identified from the SAG or MAG None .
MIXS:0000068 trna_ext_software 0..1 Tools used for tRNA identification None .
MIXS:0000069 compl_score 0..1 Completeness score is typically based on either the fraction of markers found as compared to a database or the percent of a genome found as compared to a closely related reference genome. High Quality Draft: >90%, Medium Quality Draft: >50%, and Low Quality Draft: < 50% should have the indicated completeness scores None .
MIXS:0000070 compl_software 0..1 Tools used for completion estimate, i.e. checkm, anvi'o, busco None .
MIXS:0000071 compl_appr 0..1 The approach used to determine the completeness of a given genomic assembly, which would typically make use of a set of conserved marker genes or a closely related reference genome. For UViG completeness, include reference genome or group used, and contig feature suggesting a complete genome None .
MIXS:0000072 contam_score 0..1 The contamination score is based on the fraction of single-copy genes that are observed more than once in a query genome. The following scores are acceptable for; High Quality Draft: < 5%, Medium Quality Draft: < 10%, Low Quality Draft: < 10%. Contamination must be below 5% for a SAG or MAG to be deposited into any of the public databases None .
MIXS:0000005 contam_screen_input 0..1 The type of sequence data used as input None .
MIXS:0000073 contam_screen_param 0..1 Specific parameters used in the decontamination sofware, such as reference database, coverage, and kmers. Combinations of these parameters may also be used, i.e. kmer and coverage, or reference database and kmer None .
MIXS:0000074 decontam_software 0..1 Tool(s) used in contamination screening None .
MIXS:0000075 sort_tech 0..1 Method used to sort/isolate cells or particles of interest None .
MIXS:0000076 single_cell_lysis_appr 0..1 Method used to free DNA from interior of the cell(s) or particle(s) None .
MIXS:0000054 single_cell_lysis_prot 0..1 Name of the kit or standard protocol used for cell(s) or particle(s) lysis None .
MIXS:0000055 wga_amp_appr 0..1 Method used to amplify genomic DNA in preparation for sequencing None .
MIXS:0000006 wga_amp_kit 0..1 Kit used to amplify genomic DNA in preparation for sequencing None .
MIXS:0000077 bin_param 0..1 The parameters that have been applied during the extraction of genomes from metagenomic datasets None .
MIXS:0000078 bin_software 0..1 Tool(s) used for the extraction of genomes from metagenomic datasets, where possible include a product ID (PID) of the tool(s) used. None .
MIXS:0000079 reassembly_bin 0..1 Has an assembly been performed on a genome bin extracted from a metagenomic assembly? None .
MIXS:0000080 mag_cov_software 0..1 Tool(s) used to determine the genome coverage if coverage is used as a binning parameter in the extraction of genomes from metagenomic datasets None .
MIXS:0000081 vir_ident_software 0..1 Tool(s) used for the identification of UViG as a viral genome, software or protocol name including version number, parameters, and cutoffs used None .
MIXS:0000082 pred_genome_type 0..1 Type of genome predicted for the UViG None .
MIXS:0000083 pred_genome_struc 0..1 Expected structure of the viral genome None .
MIXS:0000084 detec_type 0..1 Type of UViG detection None .
MIXS:0000085 otu_class_appr 0..1 Cutoffs and approach used when clustering “species-level” OTUs. Note that results from standard 95% ANI / 85% AF clustering should be provided alongside OTUS defined from another set of thresholds, even if the latter are the ones primarily used during the analysis None .
MIXS:0000086 otu_seq_comp_appr 0..1 Tool and thresholds used to compare sequences when computing "species-level" OTUs None .
MIXS:0000087 otu_db 0..1 Reference database (i.e. sequences not generated as part of the current study) used to cluster new genomes in "species-level" OTUs, if any None .
MIXS:0000088 host_pred_appr 0..1 Tool or approach used for host prediction None .
MIXS:0000089 host_pred_est_acc 0..1 For each tool or approach used for host prediction, estimated false discovery rates should be included, either computed de novo or from the literature None .
MIXS:0000091 associated_resource 0..1 recommended RECOMMENDED A related resource that is referenced, cited, or otherwise associated to the sequence. None .
MIXS:0000090 sop 0..1 recommended RECOMMENDED Standard operating procedures used in assembly and/or annotation of genomes, metagenomes or environmental sequences None .
MIXS:0000753 oxy_stat_samp 0..1 Oxygenation status of sample. None .
MIXS:0000993 hcr_geol_age 0..1 Geological age of hydrocarbon resource (Additional info: If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000990 lithology 0..1 Hydrocarbon resource main lithology (Additional information: If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000992 depos_env 0..1 Main depositional environment ( If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000999 samp_subtype 0..1 Name of sample sub-type. For example if "sample type" is "Produced Water" then subtype could be "Oil Phase" or "Water Phase". If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000988 hcr 1..1 Main Hydrocarbon Resource type. The term "Hydrocarbon Resource" HCR defined as a natural environmental feature containing large amounts of hydrocarbons at high concentrations potentially suitable for commercial exploitation. This term should not be confused with the Hydrocarbon Occurrence term which also includes hydrocarbon-rich environments with currently limited commercial interest such as seeps, outcrops, gas hydrates etc. If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000989 hc_produced 1..1 Main hydrocarbon type produced from resource (i.e. Oil, gas, condensate, etc). If "other" is specified, please propose entry in "additional info" field None .
MIXS:0001009 add_recov_method 1..1 Additional (i.e. Secondary, tertiary, etc.) recovery methods deployed for increase of hydrocarbon recovery from resource and start date for each one of them. If "other" is specified, please propose entry in "additional info" field None .
MIXS:0001015 samp_collect_point 1..1 Sampling point on the asset were sample was collected (e.g. Wellhead, storage tank, separator, etc). If "other" is specified, please propose entry in "additional info" field None .
MIXS:0000116 samp_store_dur 0..1 Duration for which the sample was stored None .
MIXS:0001001 ph 0..1 Ph measurement of the sample, or liquid portion of sample, or aqueous phase of the fluid None .
MIXS:0000395 hcr_pressure 0..1 Original pressure of the hydrocarbon resource None .
MIXS:0000393 hcr_temp 0..1 Original temperature of the hydrocarbon resource None .
MIXS:0000136 samp_loc_corr_rate 0..1 Metal corrosion rate is the speed of metal deterioration due to environmental conditions. As environmental conditions change corrosion rates change accordingly. Therefore, long term corrosion rates are generally more informative than short term rates and for that reason they are preferred during reporting. In the case of suspected MIC, corrosion rate measurements at the time of sampling might provide insights into the involvement of certain microbial community members in MIC as well as potential microbial interplays None .
MIXS:0000421 alkalinity 0..1 Alkalinity, the ability of a solution to neutralize acids to the equivalence point of carbonate or bicarbonate None .
MIXS:0000427 ammonium 0..1 Concentration of ammonium in the sample None .
MIXS:0000157 api 1..1 API gravity is a measure of how heavy or light a petroleum liquid is compared to water (source: (e.g. 31.1° API) None .
MIXS:0000153 benzene 0..1 Concentration of benzene in the sample None .
MIXS:0000432 calcium 0..1 Concentration of calcium in the sample None .
MIXS:0000429 chloride 0..1 Concentration of chloride in the sample None .
MIXS:0000435 density 0..1 Density of the sample, which is its mass per unit volume (aka volumetric mass density) None .
MIXS:0000436 diss_carb_dioxide 0..1 Concentration of dissolved carbon dioxide in the sample or liquid portion of the sample None .
MIXS:0000434 diss_inorg_carb 0..1 Dissolved inorganic carbon concentration in the sample, typically measured after filtering the sample using a 0.45 micrometer filter None .
MIXS:0000106 diss_inorg_phosp 0..1 Concentration of dissolved inorganic phosphorus in the sample None .
MIXS:0000139 diss_iron 0..1 Concentration of dissolved iron in the sample None .
MIXS:0000433 diss_org_carb 0..1 Concentration of dissolved organic carbon in the sample, liquid portion of the sample, or aqueous phase of the fluid None .
MIXS:0000438 diss_oxygen_fluid 0..1 Concentration of dissolved oxygen in the oil field produced fluids as it contributes to oxgen-corrosion and microbial activity (e.g. Mic). None .
MIXS:0000155 ethylbenzene 0..1 Concentration of ethylbenzene in the sample None .
MIXS:0000406 hcr_fw_salinity 0..1 Original formation water salinity (prior to secondary recovery e.g. Waterflooding) expressed as TDS None .
MIXS:0000455 iwf 1..1 Proportion of the produced fluids derived from injected water at the time of sampling. (e.g. 87%) None .
MIXS:0000431 magnesium 0..1 Concentration of magnesium in the sample None .
MIXS:0000425 nitrate 1..1 Concentration of nitrate in the sample None .
MIXS:0000426 nitrite 0..1 Concentration of nitrite in the sample None .
MIXS:0000430 potassium 0..1 Concentration of potassium in the sample None .
MIXS:0000127 pour_point 0..1 Temperature at which a liquid becomes semi solid and loses its flow characteristics. In crude oil a high pour point is generally associated with a high paraffin content, typically found in crude deriving from a larger proportion of plant material. (soure: None .
MIXS:0000412 pressure 0..1 Pressure to which the sample is subject to, in atmospheres None .
MIXS:0000452 prod_rate 0..1 Oil and/or gas production rates per well (e.g. 524 m3 / day) None .
MIXS:0000183 salinity 0..1 The total concentration of all dissolved salts in a liquid or solid sample. While salinity can be measured by a complete chemical analysis, this method is difficult and time consuming. More often, it is instead derived from the conductivity measurement. This is known as practical salinity. These derivations compare the specific conductance of the sample to a salinity standard such as seawater. None .
MIXS:0000110 samp_store_temp 0..1 Temperature at which sample was stored, e.g. -80 degree Celsius None .
MIXS:0000428 sodium 0..1 Sodium concentration in the sample None .
MIXS:0000423 sulfate 1..1 Concentration of sulfate in the sample None .
MIXS:0000407 sulfate_fw 0..1 Original sulfate concentration in the hydrocarbon resource None .
MIXS:0000424 sulfide 1..1 Concentration of sulfide in the sample None .
MIXS:0000120 tan 0..1 Total Acid Number (TAN) is a measurement of acidity that is determined by the amount of potassium hydroxide in milligrams that is needed to neutralize the acids in one gram of oil. It is an important quality measurement of crude oil. (source: None .
MIXS:0000154 toluene 0..1 Concentration of toluene in the sample None .
MIXS:0000105 tot_iron 0..1 Concentration of total iron in the sample None .
MIXS:0000102 tot_nitro 0..1 Total nitrogen concentration of water samples, calculated by: total nitrogen = total dissolved nitrogen + particulate nitrogen. Can also be measured without filtering, reported as nitrogen None .
MIXS:0000117 tot_phosp 0..1 Total phosphorus concentration in the sample, calculated by: total phosphorus = total dissolved phosphorus + particulate phosphorus None .
MIXS:0000419 tot_sulfur 0..1 Concentration of total sulfur in the sample None .
MIXS:0000397 tvdss_of_hcr_press 0..1 True vertical depth subsea (TVDSS) of the hydrocarbon resource where the original pressure was measured (e.g. 1578 m). None .
MIXS:0000394 tvdss_of_hcr_temp 0..1 True vertical depth subsea (TVDSS) of the hydrocarbon resource where the original temperature was measured (e.g. 1345 m). None .
MIXS:0000152 vfa 0..1 Concentration of Volatile Fatty Acids in the sample None .
MIXS:0000408 vfa_fw 0..1 Original volatile fatty acid concentration in the hydrocarbon resource None .
MIXS:0000454 water_cut 1..1 Current amount of water (%) in a produced fluid stream; or the average of the combined streams None .
MIXS:0000453 water_prod_rate 0..1 Water production rates per well (e.g. 987 m3 / day) None .
MIXS:0000156 xylene 0..1 Concentration of xylene in the sample None .
MIXS:0000410 samp_transport_cond 0..1 Sample transport duration (in days or hrs) and temperature the sample was exposed to (e.g. 5.5 days; 20 °C) None .
MIXS:0000126 viscosity 0..1 A measure of oil's resistance to gradual deformation by shear stress or tensile stress (e.g. 3.5 cp; 100 °C) None .
MIXS:0000456 biocide_admin_method 0..1 Method of biocide administration (dose, frequency, duration, time elapsed between last biociding and sampling) (e.g. 150 mg/l; weekly; 4 hr; 3 days) None .
MIXS:0000457 chem_treat_method 0..1 Method of chemical administration(dose, frequency, duration, time elapsed between administration and sampling) (e.g. 50 mg/l; twice a week; 1 hr; 0 days) None .
MIXS:0000998 samp_type 1..1 The type of material from which the sample was obtained. For the Hydrocarbon package, samples include types like core, rock trimmings, drill cuttings, piping section, coupon, pigging debris, solid deposit, produced fluid, produced water, injected water, swabs, etc. For the Food Package, samples are usually categorized as food, body products or tissues, or environmental material. This field accepts terms listed under environmental specimen ( None .
MIXS:0000300 additional_info 0..1 Information that doesn't fit anywhere else. Can also be used to propose new entries for fields with controlled vocabulary None .
MIXS:0000298 alkalinity_method 0..1 Method used for alkalinity measurement None .
MIXS:0000290 basin 1..1 Name of the basin (e.g. Campos) None .
MIXS:0000291 field 0..1 Name of the hydrocarbon field (e.g. Albacora) None .
MIXS:0000303 reservoir 0..1 Name of the reservoir (e.g. Carapebus) None .
MIXS:0000755 samp_store_loc 0..1 Location at which sample was stored, usually name of a specific freezer/room None .
MIXS:0000296 samp_well_name 0..1 Name of the well (e.g. BXA1123) where sample was taken None .
MIXS:0000297 win 0..1 A unique identifier of a well or wellbore. This is part of the Global Framework for Well Identification initiative which is compiled by the Professional Petroleum Data Management Association (PPDM) in an effort to improve well identification systems. (Supporting information: and None .
MIXS:0000133 aromatics_pc 0..1 Saturate, Aromatic, Resin and Asphaltene (SARA) is an analysis method that divides crude oil components according to their polarizability and polarity. There are three main methods to obtain SARA results. The most popular one is known as the Iatroscan TLC-FID and is referred to as IP-143 (source:,_aromatic,_resin_and_asphaltene) None .
MIXS:0000135 asphaltenes_pc 0..1 Saturate, Aromatic, Resin and Asphaltene (SARA) is an analysis method that divides crude oil components according to their polarizability and polarity. There are three main methods to obtain SARA results. The most popular one is known as the Iatroscan TLC-FID and is referred to as IP-143 (source:,_aromatic,_resin_and_asphaltene) None .
MIXS:0000752 misc_param 0..* Any other measurement performed or parameter collected, that is not listed here None .
MIXS:0000134 resins_pc 0..1 Saturate, Aromatic, Resin and Asphaltene (SARA) is an analysis method that divides crude oil components according to their polarizability and polarity. There are three main methods to obtain SARA results. The most popular one is known as the Iatroscan TLC-FID and is referred to as IP-143 (source:,_aromatic,_resin_and_asphaltene) None .
MIXS:0000463 samp_preserv 0..1 Preservative added to the sample (e.g. Rnalater, alcohol, formaldehyde, etc.). Where appropriate include volume added (e.g. Rnalater; 2 ml) None .
MIXS:0000131 saturates_pc 0..1 Saturate, Aromatic, Resin and Asphaltene (SARA) is an analysis method that divides crude oil components according to their polarizability and polarity. There are three main methods to obtain SARA results. The most popular one is known as the Iatroscan TLC-FID and is referred to as IP-143 (source:,_aromatic,_resin_and_asphaltene) None .
MIXS:0000150 suspend_solids 0..* Concentration of substances including a wide variety of material, such as silt, decaying plant and animal matter; can include multiple substances None .
MIXS:0000103 organism_count 0..* Total cell count of any organism (or group of organisms) per gram, volume or area of sample, should include name of organism followed by count. The method that was used for the enumeration (e.g. qPCR, atp, mpn, etc.) Should also be provided. (example: total prokaryotes; 3.5e7 cells per ml; qpcr). None .
MIXS:0001011 biocide 0..1 List of biocides (commercial name of product and supplier) and date of administration None .
MIXS:0001012 chem_treatment 0..1 List of chemical compounds administered upstream the sampling location where sampling occurred (e.g. Glycols, H2S scavenger, corrosion and scale inhibitors, demulsifiers, and other production chemicals etc.). The commercial name of the product and name of the supplier should be provided. The date of administration should also be included None .
MIXS:0000099 org_count_qpcr_info 0..1 If qpcr was used for the cell count, the target gene name, the primer sequence and the cycling conditions should also be provided. (Example: 16S rrna; FWD:ACGTAGCTATGACGT REV:GTGCTAGTCGAGTAC; initial denaturation:90C_5min; denaturation:90C_2min; annealing:52C_30 sec; elongation:72C_30 sec; 90 C for 1 min; final elongation:72C_5min; 30 cycles) None .
MIXS:0001010 iw_bt_date_well 0..1 Injection water breakthrough date per well following a secondary and/or tertiary recovery None .
MIXS:0001008 prod_start_date 0..1 Date of field's first production None .


Identifier and Mapping Information