Source Rock Analyzer (SRA):
Quick Start Guide
K. Fujine (10/20/09); revised/approved by D. Houpt (8/13/13), revised V.Percuoco 371T | July 2017 (7/26/17)
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The SRA system consists of the following main components (Figure 1): Autosampler, Main control unit: oven and detector temperature control unit and gas flow controllers, Infrared (IR) section, Combustion with gas separation and FID (pedestal, oven, and conversion FID), and Cahn electrobalance dual balance system
Figure 1. Main Components of the SRA System.
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Results are stored in the LIMS database associated with an analysis code and an analysis component, component value, and component unit. Analysis codes and their components, definitions, and units are listed below. Use Spreadsheet Uploader to transfer data from a Sequence Report to LIMS. Complete fields in Spreadsheet Uploader with the following parameters: Analysis: SRANL, Instrument: SRA, Display Flag: T, and the rest according to the table below.
Table 1: LIMS components and units
Analysis | Component | Definition | Unit | LIMS Component Unit | |||
SRANL | HI | Hydrogen index (S2 x 100/TOC) | mg HC/g TOC | NONE | |||
OI | Oxygen index (S3 x 100/TOC) | mg CO2/g TOC | NONE | ||||
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| PC | Pyrolysis carbon (0.83 x [S1 + S2]/10) | mg HC/g rock | MG_PER_G]]></ac:plain-text-body></ac:structured-macro> | <ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="c788f31e-df6d-410f-8cfc-143443b33d48"><ac:plain-text-body><![CDATA[ |
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PI | Production index ([S1/(S1 + S2)] x 100) | — | NONE | ]]></ac:plain-text-body></ac:structured-macro> | |||
| S1 | HC vaporize < 330°C (free oil) | mg HC/g rock | MGHC_P_GC | |||
S2 | HC vaporize > 330°C (kerogen) | mg HC/g rock | MGHC_P_GC | ||||
S3 | Carbon dioxide evolved | mg CO2/g rock | MGHC_P_GC | ||||
S4 | Residual carbon | mg HC/g rock | MGHC_P_GC | ||||
| mass | Sample mass | Mg | MILLIGRAMS | |||
tmax | Maximum S2 (peak) temperature | °C | CELSIUS | ||||
toc | Total organic carbon | wt% | PCT_WEIGHT |
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1. | Click SRAnalyzer Loader shortcut icon to open the SR Loader screen. |
2. | Open CSV and PDF files to be uploaded to LIMS. |
3. | Confirm Text_id and Operator name. Edit these fields if needed. |
4. | Click Calculate to calculate values for PI, PC, OI, and HI. Calculated values are shown on the right side of the screen. |
5. | Click Load to upload data to LIMS. |
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Health, Safety, & Environment
All laboratory specialists must complete required safety training before operating the SRA instrument.
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