Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir
Actual sandstone micromodel was used in this work to conduct the microscopic waterflooding experiment of ultra-low sandstone reservoir,since the inside seepage characteristics of microscopic waterflooding process of Chang 8 ultra-low permeability sandstone reservoir of Upper Triassic Yanchang format...
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| Veröffentlicht in: | Journal of Central South University 2017-09, Vol.24 (9), p.2134-2144 |
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| creator | 任大忠 孙卫 黄海 南珺祥 陈斌 |
| description | Actual sandstone micromodel was used in this work to conduct the microscopic waterflooding experiment of ultra-low sandstone reservoir,since the inside seepage characteristics of microscopic waterflooding process of Chang 8 ultra-low permeability sandstone reservoir of Upper Triassic Yanchang formation in Huaqing region of the Ordos Basin,China is difficult to observe directly.Combined with physical property,casting thin sections,constant-rate mercury injection capillary pressure and nuclear magnetic resonance,the influence of reservoir property on the waterflooding characteristics in pores were analyzed and evaluated.Seepage paths of waterflooding characteristics were divided into four types：homogeneous seepage,reticular-homogeneous seepage,finger-reticular seepage and finger-like seepage,the waterflooding efficiency of which decreases in turn.More than 70%of residual oil occurs as flowing-around seepage and oil film.Physical property,pore structure and movable fluid characteristics are all controlled by digenesis and their impacts on waterflooding efficiency are in accordance.Generally,the pore throat radius size and distribution and movable fluid percentage are closely related to waterflooding law. |
| doi_str_mv | 10.1007/s11771-017-3622-6 |
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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c379t-6d2e9479873d9957af2457c38015dc0db50c0158fe3e76d825d55e70f247afbb3</citedby><cites>FETCH-LOGICAL-c379t-6d2e9479873d9957af2457c38015dc0db50c0158fe3e76d825d55e70f247afbb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85521A/85521A.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11771-017-3622-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11771-017-3622-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>任大忠 孙卫 黄海 南珺祥 陈斌</creatorcontrib><title>Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>Actual sandstone micromodel was used in this work to conduct the microscopic waterflooding experiment of ultra-low sandstone reservoir,since the inside seepage characteristics of microscopic waterflooding process of Chang 8 ultra-low permeability sandstone reservoir of Upper Triassic Yanchang formation in Huaqing region of the Ordos Basin,China is difficult to observe directly.Combined with physical property,casting thin sections,constant-rate mercury injection capillary pressure and nuclear magnetic resonance,the influence of reservoir property on the waterflooding characteristics in pores were analyzed and evaluated.Seepage paths of waterflooding characteristics were divided into four types：homogeneous seepage,reticular-homogeneous seepage,finger-reticular seepage and finger-like seepage,the waterflooding efficiency of which decreases in turn.More than 70%of residual oil occurs as flowing-around seepage and oil film.Physical property,pore structure and movable fluid characteristics are all controlled by digenesis and their impacts on waterflooding efficiency are in accordance.Generally,the pore throat radius size and distribution and movable fluid percentage are closely related to waterflooding law.</description><subject>Capillary pressure</subject><subject>Engineering</subject><subject>Magnetic permeability</subject><subject>Magnetic properties</subject><subject>Metallic Materials</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Permeability</subject><subject>Physical properties</subject><subject>Porosity</subject><subject>Pressure casting</subject><subject>Sandstone</subject><subject>Seepage</subject><subject>Water flooding</subject><subject>上三叠统延长组</subject><subject>低渗透砂岩储层</subject><subject>低渗透砂岩油藏</subject><subject>影响因素</subject><subject>水驱油实验</subject><subject>注水</subject><subject>砂岩微观模型</subject><subject>驱油特征</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kctOHDEQRVtRkECED2BnwTJy4sfYbi8jyEtCYhPWltuPxlGPPdg9GYYF354aNUpYsapS1bn3SlVdd07JJ0qI-twoVYpiQhXmkjEs33UnjDGFBWP8PfREC8x6rY-7s9bSQDhlkkstT7rn6zCHuk7ZzqlkVCJaJ1dLc2WTHNpZWMapFJ_yiNy9rdbBJLU5uYZs9ijlOG1DdgFFWJXaYIK201wtnsoObcA72CFNad6jBoI2lxxQDS3UPyXVD91RtFMLZy_1tLv79vXX1Q98c_v959WXG-y40jOWngW9UrpX3GstlI1sJZTjPaHCO-IHQRy0fQw8KOl7JrwQQRHAgB0Gftp9XHx3NkebR_O7bGuGRPOUx71_fBxMYHA_ognjQF8u9KaWh21o83-casG1pIqvgKILdbhXqyGaTU1rW_eGEnP4i1n-YsDXHP5iJGjYomnA5jHUV85viC5egu5LHh9A9y9JKi56rTjhfwFNM56c</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>任大忠 孙卫 黄海 南珺祥 陈斌</creator><general>Central South University</general><general>Springer Nature B.V</general><general>State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069, China</general><general>Department of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China%State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069, China%Department of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China%National Engineering Laboratory of Low Permeability Oilfield Exploration and Development, Xi'an 710018, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20170901</creationdate><title>Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir</title><author>任大忠 孙卫 黄海 南珺祥 陈斌</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-6d2e9479873d9957af2457c38015dc0db50c0158fe3e76d825d55e70f247afbb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Capillary pressure</topic><topic>Engineering</topic><topic>Magnetic permeability</topic><topic>Magnetic properties</topic><topic>Metallic Materials</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Permeability</topic><topic>Physical properties</topic><topic>Porosity</topic><topic>Pressure casting</topic><topic>Sandstone</topic><topic>Seepage</topic><topic>Water flooding</topic><topic>上三叠统延长组</topic><topic>低渗透砂岩储层</topic><topic>低渗透砂岩油藏</topic><topic>影响因素</topic><topic>水驱油实验</topic><topic>注水</topic><topic>砂岩微观模型</topic><topic>驱油特征</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>任大忠 孙卫 黄海 南珺祥 陈斌</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>任大忠 孙卫 黄海 南珺祥 陈斌</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir</atitle><jtitle>Journal of Central South 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Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2017-09-01</date><risdate>2017</risdate><volume>24</volume><issue>9</issue><spage>2134</spage><epage>2144</epage><pages>2134-2144</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>Actual sandstone micromodel was used in this work to conduct the microscopic waterflooding experiment of ultra-low sandstone reservoir,since the inside seepage characteristics of microscopic waterflooding process of Chang 8 ultra-low permeability sandstone reservoir of Upper Triassic Yanchang formation in Huaqing region of the Ordos Basin,China is difficult to observe directly.Combined with physical property,casting thin sections,constant-rate mercury injection capillary pressure and nuclear magnetic resonance,the influence of reservoir property on the waterflooding characteristics in pores were analyzed and evaluated.Seepage paths of waterflooding characteristics were divided into four types：homogeneous seepage,reticular-homogeneous seepage,finger-reticular seepage and finger-like seepage,the waterflooding efficiency of which decreases in turn.More than 70%of residual oil occurs as flowing-around seepage and oil film.Physical property,pore structure and movable fluid characteristics are all controlled by digenesis and their impacts on waterflooding efficiency are in accordance.Generally,the pore throat radius size and distribution and movable fluid percentage are closely related to waterflooding law.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-017-3622-6</doi><tpages>11</tpages></addata></record> |
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| subjects | Capillary pressure Engineering Magnetic permeability Magnetic properties Metallic Materials NMR Nuclear magnetic resonance Permeability Physical properties Porosity Pressure casting Sandstone Seepage Water flooding 上三叠统延长组 低渗透砂岩储层 低渗透砂岩油藏 影响因素 水驱油实验 注水 砂岩微观模型 驱油特征 |
| title | Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability sandstone reservoir |
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