Micropore structure and water driving characteristics of tight sandstone reservoirs in Ordos Basin
In order to explore the influence of the micropore structure of the tight sandstone reservoir in the water driving characteristics, the studies on the Chang 6 tight sandstone reservoir of the middle-western part of Ordos Basin are carried out by various experiments such as cast-thin section analysis...
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description | In order to explore the influence of the micropore structure of the tight sandstone reservoir in the water driving characteristics, the studies on the Chang 6 tight sandstone reservoir of the middle-western part of Ordos Basin are carried out by various experiments such as cast-thin section analysis, scanning electron microscopy, high-pressure mercury injection and micro-water driving. The result shows that the permeability contribution curves of samples shift to the left as the sample permeability decreases, indicating that the greater the permeability, the greater the proportion of large pores. The permeability is mostly dominated by pores with the radius larger than R
50
–R
60
. There are big differences in the water driving type, oil-driven efficiency and residual oil distribution characteristics between reservoirs of different types. The type II reservoir is the major target of subsequent exploration and development, where water driving types consist of mesh and finger, leaving the residual oil mainly locked by water or isolated as oil drops. The size and distribution feature of pores are the key factors dominating the oil-driven efficiency. |
doi_str_mv | 10.1007/s13202-021-01319-7 |
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50
–R
60
. There are big differences in the water driving type, oil-driven efficiency and residual oil distribution characteristics between reservoirs of different types. The type II reservoir is the major target of subsequent exploration and development, where water driving types consist of mesh and finger, leaving the residual oil mainly locked by water or isolated as oil drops. The size and distribution feature of pores are the key factors dominating the oil-driven efficiency.</description><identifier>ISSN: 2190-0558</identifier><identifier>EISSN: 2190-0566</identifier><identifier>DOI: 10.1007/s13202-021-01319-7</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Distribution ; Earth and Environmental Science ; Earth Sciences ; Electron microscopy ; Energy Systems ; Geology ; Industrial and Production Engineering ; Industrial Chemistry/Chemical Engineering ; Mercury ; Monitoring/Environmental Analysis ; Offshore Engineering ; Oil ; Original Paper-Exploration Geology ; Permeability ; Petroleum products ; Pores ; Reservoirs ; Sandstone ; Sedimentary rocks ; Water ; Water pollution effects</subject><ispartof>Journal of Petroleum Exploration and Production Technology, 2022-03, Vol.12 (3), p.601-612</ispartof><rights>The Author(s) 2021</rights><rights>COPYRIGHT 2022 Springer</rights><rights>The Author(s) 2021. 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><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c473t-20a8dd67005702fb3d14cfd6845ac449695ec063ea5bc1dbf9344d84d3f8bca83</citedby><cites>FETCH-LOGICAL-c473t-20a8dd67005702fb3d14cfd6845ac449695ec063ea5bc1dbf9344d84d3f8bca83</cites><orcidid>0000-0002-7657-6132</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s13202-021-01319-7$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/s13202-021-01319-7$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,27922,27923,41118,41486,42187,42555,51317,51574</link.rule.ids></links><search><creatorcontrib>Zhou, Shuxun</creatorcontrib><creatorcontrib>Zhou, Yan</creatorcontrib><creatorcontrib>Shi, Jian</creatorcontrib><creatorcontrib>Zhu, Yujie</creatorcontrib><creatorcontrib>Xiao, Wulin</creatorcontrib><creatorcontrib>Zhang, Rui</creatorcontrib><title>Micropore structure and water driving characteristics of tight sandstone reservoirs in Ordos Basin</title><title>Journal of Petroleum Exploration and Production Technology</title><addtitle>J Petrol Explor Prod Technol</addtitle><description>In order to explore the influence of the micropore structure of the tight sandstone reservoir in the water driving characteristics, the studies on the Chang 6 tight sandstone reservoir of the middle-western part of Ordos Basin are carried out by various experiments such as cast-thin section analysis, scanning electron microscopy, high-pressure mercury injection and micro-water driving. The result shows that the permeability contribution curves of samples shift to the left as the sample permeability decreases, indicating that the greater the permeability, the greater the proportion of large pores. The permeability is mostly dominated by pores with the radius larger than R
50
–R
60
. There are big differences in the water driving type, oil-driven efficiency and residual oil distribution characteristics between reservoirs of different types. The type II reservoir is the major target of subsequent exploration and development, where water driving types consist of mesh and finger, leaving the residual oil mainly locked by water or isolated as oil drops. 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Technol</stitle><date>2022-03-01</date><risdate>2022</risdate><volume>12</volume><issue>3</issue><spage>601</spage><epage>612</epage><pages>601-612</pages><issn>2190-0558</issn><eissn>2190-0566</eissn><abstract>In order to explore the influence of the micropore structure of the tight sandstone reservoir in the water driving characteristics, the studies on the Chang 6 tight sandstone reservoir of the middle-western part of Ordos Basin are carried out by various experiments such as cast-thin section analysis, scanning electron microscopy, high-pressure mercury injection and micro-water driving. The result shows that the permeability contribution curves of samples shift to the left as the sample permeability decreases, indicating that the greater the permeability, the greater the proportion of large pores. The permeability is mostly dominated by pores with the radius larger than R
50
–R
60
. There are big differences in the water driving type, oil-driven efficiency and residual oil distribution characteristics between reservoirs of different types. The type II reservoir is the major target of subsequent exploration and development, where water driving types consist of mesh and finger, leaving the residual oil mainly locked by water or isolated as oil drops. The size and distribution feature of pores are the key factors dominating the oil-driven efficiency.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s13202-021-01319-7</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-7657-6132</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Distribution Earth and Environmental Science Earth Sciences Electron microscopy Energy Systems Geology Industrial and Production Engineering Industrial Chemistry/Chemical Engineering Mercury Monitoring/Environmental Analysis Offshore Engineering Oil Original Paper-Exploration Geology Permeability Petroleum products Pores Reservoirs Sandstone Sedimentary rocks Water Water pollution effects |
title | Micropore structure and water driving characteristics of tight sandstone reservoirs in Ordos Basin |
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