The mechanism of the terahertz spectroscopy for oil shale detection
Terahertz time domain spectroscopy (THz-TDS) can directly detect oil shales. The absorption coefficient is related to the oil content in the rock. This value can be compared across regions to measuring the oil content in the oil shale. Here we studied three regions and included scanning electron mic...
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| Veröffentlicht in: | Energy (Oxford) 2018-10, Vol.161, p.46-51 |
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| creator | Zhan, Honglei Chen, Mengxi Zhao, Kun Li, Yizhang Miao, Xinyang Ye, Haimu Ma, Yue Hao, Shijie Li, Hongfang Yue, Wenzheng |
| description | Terahertz time domain spectroscopy (THz-TDS) can directly detect oil shales. The absorption coefficient is related to the oil content in the rock. This value can be compared across regions to measuring the oil content in the oil shale. Here we studied three regions and included scanning electron microscope (SEM) and thermogravimetric analysis (TGA) to verify the amount of kerogen within oil shale prior to the constitution of the mineral matrix via the THz response. Aromatic and the aliphatic compounds contribute to the absorption of shales in the THz range due to the relatively high intramolecular interactions—this reveals the mechanism of THz radiation penetration through shales as reported in previous reports. The differences in quantum structure of a molecule between organic and inorganic materials suggest that THz-TDS can be applied to geophysical prospecting and improve the effectiveness of the detection of organics in oil shale.
•Terahertz spectroscopy was used to directly detect oil shales.•Terahertz absorption index depends on the kerogen content in oil shales.•Aromatic and aliphatic compounds contribute to the absorption of oil shales. |
| doi_str_mv | 10.1016/j.energy.2018.07.112 |
| format | Article |
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•Terahertz spectroscopy was used to directly detect oil shales.•Terahertz absorption index depends on the kerogen content in oil shales.•Aromatic and aliphatic compounds contribute to the absorption of oil shales.</description><subject>Absorption</subject><subject>Absorptivity</subject><subject>Aliphatic compounds</subject><subject>Aromatic compounds</subject><subject>Constitution</subject><subject>Geophysics</subject><subject>Inorganic materials</subject><subject>Kerogen</subject><subject>Molecular structure</subject><subject>Oil shale</subject><subject>Prospecting</subject><subject>Quantum phenomena</subject><subject>Radiation</subject><subject>Scanning electron microscopy</subject><subject>Shale</subject><subject>Shales</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><subject>Terahertz spectroscopy</subject><subject>Thermogravimetric analysis</subject><issn>0360-5442</issn><issn>1873-6785</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9UE1LxDAUDKLguvoPPAQ8t76kbZpcBFn8ggUv6zm06YvNstvUpCusv94s9ezpwbyZefOGkFsGOQMm7rc5Dhg-jzkHJnOoc8b4GVkwWReZqGV1ThZQCMiqsuSX5CrGLQBUUqkFWW16pHs0fTO4uKfe0ikBE4amxzD90DiimYKPxo9Han2g3u1o7Jsd0g6ntHN-uCYXttlFvPmbS_Lx_LRZvWbr95e31eM6MyXAlLXYQtFJqErWcqgEpDQNdEYWom1rxqG0CTPKcis6hbzkomgVWMkrbq2siiW5m33H4L8OGCe99YcwpJOaJ7kCoQqVWOXMMil2DGj1GNy-CUfNQJ_q0ls916VPdWmodaoryR5mGaYPvh0GHY3DwWDnQnpTd979b_ALyhJ0Zg</recordid><startdate>20181015</startdate><enddate>20181015</enddate><creator>Zhan, Honglei</creator><creator>Chen, Mengxi</creator><creator>Zhao, Kun</creator><creator>Li, Yizhang</creator><creator>Miao, Xinyang</creator><creator>Ye, Haimu</creator><creator>Ma, Yue</creator><creator>Hao, Shijie</creator><creator>Li, Hongfang</creator><creator>Yue, Wenzheng</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-2164-3481</orcidid></search><sort><creationdate>20181015</creationdate><title>The mechanism of the terahertz spectroscopy for oil shale detection</title><author>Zhan, Honglei ; 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The absorption coefficient is related to the oil content in the rock. This value can be compared across regions to measuring the oil content in the oil shale. Here we studied three regions and included scanning electron microscope (SEM) and thermogravimetric analysis (TGA) to verify the amount of kerogen within oil shale prior to the constitution of the mineral matrix via the THz response. Aromatic and the aliphatic compounds contribute to the absorption of shales in the THz range due to the relatively high intramolecular interactions—this reveals the mechanism of THz radiation penetration through shales as reported in previous reports. The differences in quantum structure of a molecule between organic and inorganic materials suggest that THz-TDS can be applied to geophysical prospecting and improve the effectiveness of the detection of organics in oil shale.
•Terahertz spectroscopy was used to directly detect oil shales.•Terahertz absorption index depends on the kerogen content in oil shales.•Aromatic and aliphatic compounds contribute to the absorption of oil shales.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.energy.2018.07.112</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-2164-3481</orcidid></addata></record> |
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| subjects | Absorption Absorptivity Aliphatic compounds Aromatic compounds Constitution Geophysics Inorganic materials Kerogen Molecular structure Oil shale Prospecting Quantum phenomena Radiation Scanning electron microscopy Shale Shales Spectroscopy Spectrum analysis Terahertz spectroscopy Thermogravimetric analysis |
| title | The mechanism of the terahertz spectroscopy for oil shale detection |
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