{"id":61029,"date":"2023-06-19T05:00:19","date_gmt":"2023-06-18T21:00:19","guid":{"rendered":"http:\/\/learncmg.cn\/?p=61029"},"modified":"2023-06-19T05:00:19","modified_gmt":"2023-06-18T21:00:19","slug":"311-%e8%87%b4%e5%af%86%e6%b2%b9%e8%97%8f%e7%9b%b8%e5%af%b9%e6%b8%97%e9%80%8f%e7%8e%87%e4%b8%8e%e6%b3%a8%e6%b0%b4%e5%8a%a8%e6%80%81%e6%af%9b%e7%bb%86%e7%ae%a1%e7%8e%b0%e8%b1%a1%e7%9a%84%e6%a8%a1","status":"publish","type":"post","link":"http:\/\/learncmg.cn\/?p=61029","title":{"rendered":"311. \u81f4\u5bc6\u6cb9\u85cf\u76f8\u5bf9\u6e17\u900f\u7387\u4e0e\u6ce8\u6c34\u52a8\u6001\u6bdb\u7ec6\u7ba1\u73b0\u8c61\u7684\u6a21\u62df\u7814\u7a76"},"content":{"rendered":"
<\/h5>\n

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<\/h5>\n

Simulation study of\u00a0relative permeability and\u00a0the\u00a0dynamic capillarity of\u00a0waterflooding in\u00a0tight oil reservoirs<\/a><\/h3>\n
Abstract<\/strong><\/h6>\n

Relative permeability (kr ) and the capillary pressure (Pc) are the central key elements defining the multiphase fluids flow behavior in the porous media. However, the dynamic capillarity should consider the dynamic relative permeability and the dynamic capillary pressure while performing waterflooding process in extremely low permeable formations. In order to improve the oil production, the advanced horizontal well drilling along with multiple hydraulic fracturing is generally instigated to penetrate the unconventional resources. The aim of this study is to consider the dynamic capillarity in a commercial reservoir simulation, while utilizing the data gained from the dynamic and steady experiments of the relative permeability and the capillary pressure impacts during waterflooding process in the core plugs of unconventional tight oil reservoirs. The commercial reservoir simulation conducted sensitivity analyses using Computer Modeling Group simulator. The outcomes show that the well production of the reservoir is overestimated while implementing steady data for forecasting due to which the oil saturation decreases more equally and further rapidly. Additionally, the forecast of the well production estimated to breakthrough sooner. However, neglecting the dynamic capillarity causes a huge breakthrough of water influx. Therefore, the core objective of this study is to probe the consequences of taking into consideration the dynamic capillarity in ultralow permeable formations while giving an alternative perspective to forecast the production of the hydraulically fractured unconventional tight oil reservoirs.<\/span><\/p>\n

Keywords<\/strong><\/span><\/h6>\n

Dynamic\u00a0\u00b7 Steady\u00a0\u00b7 Capillary\u00a0\u00b7 Relative permeability\u00a0\u00b7 Waterflooding<\/span>
\n
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\n<\/p>\n

Conclusions<\/h3>\n

Following are the major conclusions from the numerical simulation conducted by CMG to investigate the role of the dynamic capillarity throughout the waterflooding procedure in hydraulically fractured unconventional tight formations:
\n1. If the steady capillarity is adopted to predict the waterflooding performance, the capillary pressure distributes more uniformly, and the capillary resistance is smaller, with a more even and quicker reduction in the oil saturation.
\n2. If the steady capillarity is used to replace the dynamic one, the well production of the formation is overvalued and the predicted oil recovery will breakthrough sooner causing a greater breakthrough of water influx.
\n3. It is necessary to take into consideration the dynamic capillarity in hydraulically fractured unconventional tight reservoirs. This work gives an alternative standpoint to forecast the production of the hydraulically fractured unconventional tight oil reservoirs.
\n\u4ee5\u4e0b\u662fCMG\u8fdb\u884c\u7684\u6570\u503c\u6a21\u62df\u5f97\u51fa\u7684\u4e3b\u8981\u7ed3\u8bba\uff0c\u8be5\u6a21\u62df\u65e8\u5728\u7814\u7a76\u6c34\u529b\u538b\u88c2\u975e\u5e38\u89c4\u81f4\u5bc6\u5730\u5c42\u4e2d\u52a8\u6001\u6bdb\u7ec6\u7ba1\u73b0\u8c61\u5728\u6574\u4e2a\u6ce8\u6c34\u8fc7\u7a0b\u4e2d\u7684\u4f5c\u7528\uff1a
\n1.\u5982\u679c\u91c7\u7528\u7a33\u5b9a\u6bdb\u7ec6\u7ba1\u73b0\u8c61\u6765\u9884\u6d4b\u6ce8\u6c34\u6548\u679c\uff0c\u5219\u6bdb\u7ec6\u7ba1\u538b\u529b\u5206\u5e03\u66f4\u5747\u5300\uff0c\u6bdb\u7ec6\u7ba1\u963b\u529b\u66f4\u5c0f\uff0c\u542b\u6cb9\u9971\u548c\u5ea6\u964d\u4f4e\u66f4\u5747\u5300\u3001\u66f4\u5feb\u3002
\n2.\u5982\u679c\u7528\u7a33\u5b9a\u6bdb\u7ec6\u7ba1\u73b0\u8c61\u4ee3\u66ff\u52a8\u6001\u6bdb\u7ec6\u7ba1\u73b0\u8c61\uff0c\u5219\u5730\u5c42\u7684\u4e95\u4ea7\u91cf\u88ab\u9ad8\u4f30\uff0c\u9884\u6d4b\u7684\u91c7\u6cb9\u7387\u5c06\u66f4\u5feb\u7a81\u7834\uff0c\u4ece\u800c\u5bfc\u81f4\u6c34\u4fb5\u7a81\u7834\u66f4\u5927\u3002
\n3.\u5728\u6c34\u529b\u538b\u88c2\u7684\u975e\u5e38\u89c4\u81f4\u5bc6\u6cb9\u85cf\u4e2d\uff0c\u6709\u5fc5\u8981\u8003\u8651\u52a8\u6001\u6bdb\u7ec6\u7ba1\u73b0\u8c61\u3002\u8fd9\u9879\u5de5\u4f5c\u4e3a\u9884\u6d4b\u6c34\u529b\u538b\u88c2\u975e\u5e38\u89c4\u81f4\u5bc6\u6cb9\u85cf\u7684\u4ea7\u91cf\u63d0\u4f9b\u4e86\u53e6\u4e00\u79cd\u89c2\u70b9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u76f8\u5bf9\u6e17\u900f\u7387\uff08kr\uff09\u548c\u6bdb\u7ec6\u7ba1\u538b\u529b\uff08Pc\uff09\u662f\u5b9a\u4e49\u591a\u5b54\u4ecb\u8d28\u4e2d\u591a\u76f8\u6d41\u4f53\u6d41\u52a8\u884c\u4e3a\u7684\u5173\u952e\u56e0\u7d20\u3002\u7136\u800c\uff0c\u5728\u6781\u4f4e\u6e17\u900f\u5730Continue Reading<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[159],"tags":[463,570],"_links":{"self":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts\/61029"}],"collection":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=61029"}],"version-history":[{"count":0,"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts\/61029\/revisions"}],"wp:attachment":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=61029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=61029"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=61029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}