A new genetic mechanism of natural gas accumulation
Natural gas of organic origin is primarily biogenic or thermogenic; however, the formation of natural gas is occasionally attributed to hydrothermal activity. The Precambrian dolomite reservoir of the Anyue gas field is divided into three stages. Dolomite-quartz veins were precipitated after two ear...
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| Veröffentlicht in: | Scientific reports 2018-05, Vol.8 (1), p.8336-12, Article 8336 |
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| creator | Yang, Chengyu Ni, Zhiyong Wang, Tieguan Chen, Zhonghong Hong, Haitao Wen, Long Luo, Bing Wang, Wenzhi |
| description | Natural gas of organic origin is primarily biogenic or thermogenic; however, the formation of natural gas is occasionally attributed to hydrothermal activity. The Precambrian dolomite reservoir of the Anyue gas field is divided into three stages. Dolomite-quartz veins were precipitated after two earlier stages of dolomite deposition. Fluid inclusions in the dolomite and quartz are divided into pure methane (P-type), methane-bearing (M-type), aqueous (W-type), and solid bitumen-bearing (S-type) inclusions. The W-type inclusions within the quartz and buried dolomite homogenized between 107 °C and 223 °C. Furthermore, the trapping temperatures and pressures of the fluid (249 °C to 319 °C and 1619 bar to 2300 bar, respectively) are obtained from the intersections of the isochores of the P-type and the coeval W-type inclusions in the quartz. However, the burial history of the reservoir indicates that the maximum burial temperature did not exceed 230 °C. Thus, the generation of the natural gas was not caused solely by the burial of the dolomite reservoir. The results are also supported by the presence of paragenetic pyrobitumen and MVT lead-zinc ore. A coupled system of occasional invasion by hydrothermal fluids and burial of the reservoir may represent a new genetic model for natural gas accumulation in this gas field. |
| doi_str_mv | 10.1038/s41598-018-26517-y |
| format | Article |
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The Precambrian dolomite reservoir of the Anyue gas field is divided into three stages. Dolomite-quartz veins were precipitated after two earlier stages of dolomite deposition. Fluid inclusions in the dolomite and quartz are divided into pure methane (P-type), methane-bearing (M-type), aqueous (W-type), and solid bitumen-bearing (S-type) inclusions. The W-type inclusions within the quartz and buried dolomite homogenized between 107 °C and 223 °C. Furthermore, the trapping temperatures and pressures of the fluid (249 °C to 319 °C and 1619 bar to 2300 bar, respectively) are obtained from the intersections of the isochores of the P-type and the coeval W-type inclusions in the quartz. However, the burial history of the reservoir indicates that the maximum burial temperature did not exceed 230 °C. Thus, the generation of the natural gas was not caused solely by the burial of the dolomite reservoir. The results are also supported by the presence of paragenetic pyrobitumen and MVT lead-zinc ore. A coupled system of occasional invasion by hydrothermal fluids and burial of the reservoir may represent a new genetic model for natural gas accumulation in this gas field.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-018-26517-y</identifier><identifier>PMID: 29844479</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>132/124 ; 140/133 ; 704/2151/209 ; 704/2151/213/4115 ; Dolomite ; Humanities and Social Sciences ; Isochores ; Lead ; Methane ; multidisciplinary ; Natural gas ; Oil and gas fields ; Precambrian ; Quartz ; Reservoirs ; Science ; Science (multidisciplinary)</subject><ispartof>Scientific reports, 2018-05, Vol.8 (1), p.8336-12, Article 8336</ispartof><rights>The Author(s) 2018</rights><rights>2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-a7f2104b604269d3dfdef296a5622158a047a606142915ef5f84b0eed36b892c3</citedby><cites>FETCH-LOGICAL-c474t-a7f2104b604269d3dfdef296a5622158a047a606142915ef5f84b0eed36b892c3</cites><orcidid>0000-0002-2136-4802</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5974082/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5974082/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,41120,42189,51576,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29844479$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Chengyu</creatorcontrib><creatorcontrib>Ni, Zhiyong</creatorcontrib><creatorcontrib>Wang, Tieguan</creatorcontrib><creatorcontrib>Chen, Zhonghong</creatorcontrib><creatorcontrib>Hong, Haitao</creatorcontrib><creatorcontrib>Wen, Long</creatorcontrib><creatorcontrib>Luo, Bing</creatorcontrib><creatorcontrib>Wang, Wenzhi</creatorcontrib><title>A new genetic mechanism of natural gas accumulation</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Natural gas of organic origin is primarily biogenic or thermogenic; however, the formation of natural gas is occasionally attributed to hydrothermal activity. The Precambrian dolomite reservoir of the Anyue gas field is divided into three stages. Dolomite-quartz veins were precipitated after two earlier stages of dolomite deposition. Fluid inclusions in the dolomite and quartz are divided into pure methane (P-type), methane-bearing (M-type), aqueous (W-type), and solid bitumen-bearing (S-type) inclusions. The W-type inclusions within the quartz and buried dolomite homogenized between 107 °C and 223 °C. Furthermore, the trapping temperatures and pressures of the fluid (249 °C to 319 °C and 1619 bar to 2300 bar, respectively) are obtained from the intersections of the isochores of the P-type and the coeval W-type inclusions in the quartz. However, the burial history of the reservoir indicates that the maximum burial temperature did not exceed 230 °C. Thus, the generation of the natural gas was not caused solely by the burial of the dolomite reservoir. The results are also supported by the presence of paragenetic pyrobitumen and MVT lead-zinc ore. A coupled system of occasional invasion by hydrothermal fluids and burial of the reservoir may represent a new genetic model for natural gas accumulation in this gas field.</description><subject>132/124</subject><subject>140/133</subject><subject>704/2151/209</subject><subject>704/2151/213/4115</subject><subject>Dolomite</subject><subject>Humanities and Social Sciences</subject><subject>Isochores</subject><subject>Lead</subject><subject>Methane</subject><subject>multidisciplinary</subject><subject>Natural gas</subject><subject>Oil and gas fields</subject><subject>Precambrian</subject><subject>Quartz</subject><subject>Reservoirs</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kT1PwzAQhi0EolXpH2BAkVhYAvbFduwFqar4kiqxwGy5jtOmSpwSJ6D-e1xSSmHAy1m65977eBE6J_ia4ETceEqYFDEmIgbOSBpvjtAQMGUxJADHB_8BGnu_wuExkJTIUzQAKSilqRyiZBI5-xEtrLNtYaLKmqV2ha-iOo-cbrtGl9FC-0gb01VdqduidmfoJNelt-NdHKHX-7uX6WM8e354mk5msaEpbWOd5kAwnXNMgcssyfLM5iC5ZhyAMKExTTXHnFCQhNmc5YLOsbVZwudCgklG6LbXXXfzymbGujaMo9ZNUelmo2pdqN8ZVyzVon5XTKYUCwgCVzuBpn7rrG9VVXhjy1I7W3dehROlQNNEioBe_kFXdde4sN6W4kxILLYU9JRpau8bm--HIVhtbVG9LSrYor5sUZtQdHG4xr7k24QAJD3gQ8otbPPT-x_ZT04al5o</recordid><startdate>20180529</startdate><enddate>20180529</enddate><creator>Yang, Chengyu</creator><creator>Ni, Zhiyong</creator><creator>Wang, Tieguan</creator><creator>Chen, Zhonghong</creator><creator>Hong, Haitao</creator><creator>Wen, Long</creator><creator>Luo, Bing</creator><creator>Wang, Wenzhi</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2136-4802</orcidid></search><sort><creationdate>20180529</creationdate><title>A new genetic mechanism of natural gas accumulation</title><author>Yang, Chengyu ; 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however, the formation of natural gas is occasionally attributed to hydrothermal activity. The Precambrian dolomite reservoir of the Anyue gas field is divided into three stages. Dolomite-quartz veins were precipitated after two earlier stages of dolomite deposition. Fluid inclusions in the dolomite and quartz are divided into pure methane (P-type), methane-bearing (M-type), aqueous (W-type), and solid bitumen-bearing (S-type) inclusions. The W-type inclusions within the quartz and buried dolomite homogenized between 107 °C and 223 °C. Furthermore, the trapping temperatures and pressures of the fluid (249 °C to 319 °C and 1619 bar to 2300 bar, respectively) are obtained from the intersections of the isochores of the P-type and the coeval W-type inclusions in the quartz. However, the burial history of the reservoir indicates that the maximum burial temperature did not exceed 230 °C. Thus, the generation of the natural gas was not caused solely by the burial of the dolomite reservoir. The results are also supported by the presence of paragenetic pyrobitumen and MVT lead-zinc ore. A coupled system of occasional invasion by hydrothermal fluids and burial of the reservoir may represent a new genetic model for natural gas accumulation in this gas field.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>29844479</pmid><doi>10.1038/s41598-018-26517-y</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-2136-4802</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 132/124 140/133 704/2151/209 704/2151/213/4115 Dolomite Humanities and Social Sciences Isochores Lead Methane multidisciplinary Natural gas Oil and gas fields Precambrian Quartz Reservoirs Science Science (multidisciplinary) |
| title | A new genetic mechanism of natural gas accumulation |
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